struts2-showcase-2.1.6.war运行异常,求解 [问题点数:50分]

Bbs4
本版专家分:1159
结帖率 99.31%
Bbs5
本版专家分:2478
运行异常求解
rnrnrnrnrnrnrn rn Untitled Documentrnrnrnrnrn rn rn rn rn 表的增删改rn rn rn rn rn 姓名 rn 工资 rn 部门 rn 操作 rn rn pages) pages++; rn pagecount = pages ; rn rn if(request.getParameter("page")!=null)//假如接收的页面数不为空 rn currentpage = java.lang.Integer.parseInt(request.getParameter("page"));//就把接收的页面数pagg赋值给gopage rn else//否则 rn currentpage=1;//gopage为1,即显示第一页 rn rn rn //分页查询 rnrn sql = "select * from XO where id between 1 and 160"; rn // System.out.println(sql); rn rs = DbBean.executeQuery(sql); rn while(rs.next()) rn String id=rs.getString("id"); rn String xm2=rs.getString("xm"); rn String gz=rs.getString("gz");rn String bm=rs.getString("bm"); rn %> rn rn rn rn rn 修改 rn 删除 rn rn rn rn 新增 rn rn rn rn rnrn rnrn rn DbBean.executeQuery(sql) rn rn rn rn rn rn rnrnrn rnrnrnrnrn<em>运行</em>结果:rnaq.executeQuery: The url cannot be nullrn
java 一元二次方程 异常处理
一元二次方程 <em>异常</em>处理
实现一个求解一元二次方程的类,该类包含三个成员变量和一个求解一元二次方程解的函数,该函数需要抛出异常(1.无解的异常 2二次项系数为0的异常))
实现一个<em>求解</em>一元二次方程的类,该类包含三个成员变量和一个<em>求解</em>一元二次方程解的函数,该函数需要抛出<em>异常</em>(1.无解的<em>异常</em> 2二次项系数为0的<em>异常</em>))
excel录制宏运行规划求解不能运行的问题
当我们录制宏进行规划<em>求解</em>,事后发现录制的宏无法<em>运行</em>,有时会出现子过程或函数未定义的问题,此时需要参考一下文章:点击打开链接n在工具列表的引用项是灰色的,这往往是因为宏处于<em>运行</em>或中断状态,此时需要在<em>运行</em>列表中点击重新设置,引用选项回复正常。
异常求解
[size=24px]Struts Problem ReportrnrnStruts has detected an unhandled exception:rnMessages: rnrn1 a different object with the same identifier value was already associated with the session: [cn.com.su.domain.Supplier#s001]rn2 a different object with the same identifier value was already associated with the session: [cn.com.su.domain.Supplier#s001]; nested exception is org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [cn.com.su.domain.Supplier#s001]rnrnFile: org/hibernate/engine/StatefulPersistenceContext.javarnLine number: 637rnStacktracesrnorg.springframework.orm.hibernate3.HibernateSystemException: a different object with the same identifier value was already associated with the session: [cn.com.su.domain.Supplier#s001]; nested exception is org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [cn.com.su.domain.Supplier#s001]rnrn org.springframework.orm.hibernate3.SessionFactoryUtils.convertHibernateAccessException(SessionFactoryUtils.java:661)rn org.springframework.orm.hibernate3.HibernateAccessor.convertHibernateAccessException(HibernateAccessor.java:412)rn org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:424)rn org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)rn org.springframework.orm.hibernate3.HibernateTemplate.save(HibernateTemplate.java:690)rn cn.com.su.daoimpl.MaterialDaoImpl.addMaterial(MaterialDaoImpl.java:23)rn cn.com.su.serviceimpl.MaterialServiceImpl.addMaterial(MaterialServiceImpl.java:20)rn sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)rn sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)rn sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)rn java.lang.reflect.Method.invoke(Method.java:597)rn org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)rn org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)rn org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)rn org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)rn org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)rn org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)rn $Proxy10.addMaterial(Unknown Source)rn cn.com.su.action.MaterialAction.addMaterial(MaterialAction.java:55)rn sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)rn sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)rn sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)rn java.lang.reflect.Method.invoke(Method.java:597)rn com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:441)rn com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:280)rn com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:243)rn com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:165)rn com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)rn com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:237)rn com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:252)rn[/size] rnrnrnrn[code=java]rn//添加材料rn public String addMaterial()rn rn Supplier s = (Supplier) ActionContext.getContext().getSession().get("supplier");rn Material material = new Material();rn BeanUtils.copyProperties(getModel(), material);rn Type type = typeService.searchTypeById(getModel().getMaterial_type().getId());rn material.setMaterial_type(type);rn Supplier supplier = supplierService.searchSupplierById(s.getSupplier_id());rn material.setMaterial_supplier(supplier);rn materialService.addMaterial(material);rn success = true;rn return "success";rn rn[/code]rn我知道是不同的对象有相同的标识符导致的错误,但是我不明白为什么会这样,以及解决办法。
一段求解基尼系数的matlab代码
一段关于基尼系数的<em>求解</em>代码在matlab中<em>运行</em> 一段关于基尼系数的<em>求解</em>代码在matlab中<em>运行</em>
Abscon(CSP求解算法)
CSP<em>求解</em>器,即为约束满足问题的<em>求解</em>器,在Linux平台<em>运行</em>。
运行异常和编译异常
看到这么多<em>异常</em>,想要找出我们常见的5中<em>运行</em>时<em>异常</em>是非常容易的。n例如:nClassCastException(类转换<em>异常</em>)nArrayIndexOutOfBoundsException(数组越界<em>异常</em>)nNullPointerException(空指针<em>异常</em>)nArrayStoreException(数据存储<em>异常</em>,操作数组时类型不一致)nBufferOverflowException(还有IO操作的,...
java中的异常处理
在java中会有一些<em>异常</em>。这些<em>异常</em>分为<em>运行</em><em>异常</em>和编译<em>异常</em>,java中将这些<em>异常</em>作为对象进行处理。
java 常见运行异常总结
java 常见<em>运行</em><em>异常</em>,总结了java<em>运行</em>过程中,可能出现的各种<em>异常</em>
使用MABLAB求解线性规划问题
使用MABLAB<em>求解</em>线性规划问题的pdf文件,里面含有用matlab<em>求解</em>各种线性规划问题,如:非线性规划,无约束非线性规划,有约束非线性规划
SOLVER.XLAM
2013的规划<em>求解</em>的宏插件,直接双击或者放置在office目录下的
迷宫求解
话不多说,直接贴代码:n(一)<em>运行</em>迷宫:0表示通路,1表示墙,红色的0表示入口,绿色的一行表示出口n1 1 1 1 1 1 1 1 1 1n1 1 1 1 1 1 1 1 1 1n0 0 0 1 1 1 1 1 1 1n1 1 0 1 1 1 1 1 1 1n1 1 0 1 1 1 1 1 1 1n1 1 0 1 1 1 1 1 1 1n1 1 0 0 0 0 0 0 1 1n1 1 0 1
蚁群算法matlab程序
蚁群算法matlab程序,可<em>运行</em>可<em>运行</em>,可用于<em>求解</em>TSP问题,
运行异常,编译时异常
class Student{n private int age;nn public void setAge(int age) throws Exception{n if(age&amp;amp;amp;gt;0&amp;amp;amp;amp;&amp;amp;amp;amp;age&amp;amp;amp;lt;150){n this.age = age;n }else{n //1.System...
Java中的编译时异常运行异常的区别
编译时<em>异常</em>:首先它的过程是在程序把他的.java的源文件编译成字节码文件也就是.class文件,出现的<em>异常</em>。nn<em>运行</em>时<em>异常</em>:<em>运行</em>时<em>异常</em>表示虚拟机的通常操作中可能遇到的<em>异常</em>,它意味着程序存在着bug。nn编译时<em>异常</em>和程序的上下文条件有着密切关系,即使程序设计无误也会由于使用问题而引发。Java编译器要求方法必须声明抛出可能发生的编译时<em>异常</em>,但是并不要求必须声明抛出未被捕获的<em>运行</em>时<em>异常</em>...
解决Job中,进度条后台运行,恢复问题
[code=&quot;java&quot;]rn Job job = new Job(&quot;ttt&quot;) { rn @Overridern protected IStatus run(IProgressMonitor monitor) {rn try {rn monitor.beginTask(&quot;任务(10个)&quot;, 10); rn for (int i = 0; i &lt; 10; i++) ...
java异常4:编译期异常运行异常
编译期<em>异常</em>和<em>运行</em>期<em>异常</em>的区别n(1)Java中的<em>异常</em>被分为两大类:编译时<em>异常</em>和<em>运行</em>时<em>异常</em>。n(2)所有的RuntimeException类及其子类的实例被称为<em>运行</em>时<em>异常</em>,其他的<em>异常</em>就是编译时<em>异常</em>。n编译时<em>异常</em>nJava程序必须显示处理,否则程序就会发生错误,无法通过编译。n<em>运行</em>时<em>异常</em>n无需显示处理,也可以和编译时<em>异常</em>一样处理。n案例演示nimport java.io.FileInputStream...
迷宫求解cpp文件
迷宫<em>求解</em>,未优化,可<em>运行</em>.............................................................................................................................................................................................
C语言求解素数
用于<em>求解</em>素数 需要用手机c4droid<em>运行</em>
可以直接运行求解VRP的matlab程序,
可以直接<em>运行</em><em>求解</em>VRP的matlab程序,可以<em>求解</em>具有时间窗、与容量限制的车辆路径问题
小船渡河问题
小船渡河问题分析与<em>求解</em> 在VC6.0下<em>运行</em>源代码
二维最接近点对代码
二维最接近点对的<em>求解</em> DEV-C下<em>运行</em>
sa求解tsp问题MATLAB代码
sa<em>求解</em>tsp问题MATLAB代码,可<em>运行</em>
Qt运行出现异常
今天<em>运行</em>Qt程序  出现 “error link1158 无法<em>运行</em>rc.exe”。 nnQt版本:5.7.1nn操作系统:win10 64bitnnVS 2015nn解决办法:nn将C:\Program Files (x86)\Windows Kits\8.1\bin\x64 目录下的rc.exe 和rcdll.dll 复制到nnC:\Program Files (x86)\Microsoft V...
Java运行异常与普通异常的区别
在Java中提供了两种错误的<em>异常</em>类,分别是Error和Exception,它们拥有共同的父类Throwable。
11.2运行异常和编译异常
<em>异常</em>体系rn------------|Throwable(super类)rn----------------|Error(错误)rn----------------|Exception(<em>异常</em>)rn---------------------|<em>运行</em>时<em>异常</em>(方法内抛出一个<em>运行</em><em>异常</em>时候 方法上方可以声明 也可以不声明)rn---------------------|编译时<em>异常</em>(非<em>运行</em>时<em>异常</em>或称为受检<em>异常</em>
6个常见的运行异常(JAVA)
nArithmeticException(算术<em>异常</em>)nClassCastException (类转换<em>异常</em>)nIllegalArgumentException (非法参数<em>异常</em>)nIndexOutOfBoundsException (下标越界<em>异常</em>)nNullPointerException (空指针<em>异常</em>)nSecurityException (安全<em>异常</em>)nn<em>异常</em>处理关键字:throws、throw、t...
java 运行异常和检查异常
Java把<em>异常</em>当做对象来处理,并定义一个基类java.lang.Throwable作为所有<em>异常</em>的超类。它有两个子类:Error和Exception,分别表示错误和<em>异常</em>。其中<em>异常</em>Exception分为<em>运行</em>时<em>异常</em>(RuntimeException)和非<em>运行</em>时<em>异常</em>(checkedexception)rn1、RuntimeException:rn也称<em>运行</em>时<em>异常</em>,程序中可以选择捕获处理,也可以不处理。这些异
java抛出异常后 代码继续运行问题探究
java抛出<em>异常</em>后 代码继续<em>运行</em>问题探究rn1、package com.baofoo.admin.test;nnimport lombok.extern.slf4j.Slf4j;nimport org.junit.Test;nn/**n * Created by BF100 on 2018/4/12.n */n@Slf4jnpublic class TestByCaoxNew {n @Tes
SAT求解机之minisat&zchaff的安装与运行
minisat的下载安装与<em>运行</em>下载:http://minisat.se/   (在此之前先安装zlib.h     点击打开链接)安装:解压-打开终端,通过以下命令进行安装(此处为源代码安装须命令行执行,不同于Windows系统下直接安装)①export MROOT=&amp;lt;minisat dir&amp;gt;                    ##&amp;lt;minisat dir&amp;gt;    为m...
QT运行时提示异常退出
1·在调用外部链接库的时候,动态链接库的初始化有问题,生成的dll有问题,不妨重新生成一遍;2· 打开了多个QT工程;3· 调用的动态链接库有问题;4· 程序如果<em>异常</em>退出,大家可以对有问题的地方进行打印输出,来确定问题的位置;...
Hessian异常求解
根据博文配置rn http://web.iteye.com/blog/513238rnrnrnrnHello worldrnwork=任务rn[a, Name=刘德华, Add=上海, work=任务]rn2012-4-4 16:49:24 com.caucho.hessian.io.SerializerFactory getDeserializerrn警告: Hessian/Burlap: 'com.a.e.User' is an unknown class in sun.misc.Launcher$AppClassLoader@1372a1a:rnjava.lang.ClassNotFoundException: com.a.e.Userrnrnrn不知道为什么会报警告????rnrnHessian版本是 4.0.7
hibernate的一个异常求解
service代码:rn @Transactional rn public void add(Theme transientTheme) throws ThemeExistingException rn System.out.println(themeDao.findByProperty("themeName", transientTheme.getThemeName()).size());rn if(themeDao.findByProperty("themeName", transientTheme.getThemeName()).size() != 0) rn throw new ThemeExistingException("主题名" + transientTheme.getThemeName() + "已存在");rn else rn themeDao.save(transientTheme);rn rn rnrndao代码:rn public void save(Theme transientInstance) rn log.debug("saving Theme instance");rn try rn getHibernateTemplate().save(transientInstance);rn log.debug("save successful");rn catch (RuntimeException re) rn log.error("save failed", re);rn throw re;rn rn rnrnrn我调用service的时候,dao里的代码已经执行,并且成功添加了数据,但确报了一个空指针<em>异常</em>,rnjava.lang.NullPointerExceptionrn at org.apache.struts2.components.template.TemplateEngineManager.getTemplateEngine(TemplateEngineManager.java:102)rn at org.apache.struts2.components.UIBean.mergeTemplate(UIBean.java:555)rn at org.apache.struts2.components.UIBean.end(UIBean.java:519)rn at org.apache.struts2.views.jsp.ComponentTagSupport.doEndTag(ComponentTagSupport.java:42)rn at org.apache.jsp.jsp.message.message_jsp._jspx_meth_s_005fdebug_005f0(message_jsp.java:122)rn at org.apache.jsp.jsp.message.message_jsp._jspService(message_jsp.java:91)rn at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)rn at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:388)rn at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)rn at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:88)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)rn at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)rn at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)rn at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)rn at org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:164)rn at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)rn at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:367)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:271)rn at com.sc.web.intercptor.TitleIntercptor.intercept(TitleIntercptor.java:27)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.sc.web.intercptor.TimeIntercptor.intercept(TimeIntercptor.java:24)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.sc.web.intercptor.AutoLoginIntercptor.intercept(AutoLoginIntercptor.java:65)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:256)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:176)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)rn at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:238)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:238)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:252)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:141)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:176)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:187)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:242)rn at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)rn at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:544)rn at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)rn at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:91)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)rn at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)rn at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)rn at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)rn at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)rn at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)rn at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)rn at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:291)rn at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)rn at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:602)rn at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)rn at java.lang.Thread.run(Thread.java:619)rnrn
java 异常代码求解
/不能正常抛<em>异常</em>抛<em>异常</em>,编译。<em>运行</em>都没事,找不出问题很痛苦,求助大神rnrnpublic class ThrowTest rnrn public static void main(String[] args) rn rn tryrn rn throwChecked(-3);rn rn catch (Exception e)rn rn System.out.println(e.getMessage());rn rn throwRuntime(-3);rn System.out.println();rn rn public static void throwChecked(int a)throws Exception rn rn if(a>0)rn rn throw new Exception("a的值大于0.不符合要求");rn rn rn public static void throwRuntime(int a)rn rn if(a>0)rn rn throw new RuntimeException("a的值大于0.不符合要求");rn rnrnrn
求解异常
<em>求解</em>java中的<em>异常</em>链是什么,它的好处是什么,在什么情况下要用到,举个例子
异常求解啊。
[code=XML] rnrn rn rn 微软rn Windowsrn Vistarn 1rn 3720rn rn rn 甲骨文rn Oraclern 10Grn 25rn 358680rn rn rn 赛门铁克rn Norton Antivirusrn 10.0rn 50rn 29600rn rn rn 瑞星rn Risingrn 2006rn 50rn 19400rn rnrnrn[/code]rn我在验证文件的时候,老是警告:不能在该文档实例中定位一个支持schema类型(DTD,W3C Schema)的引用rn<em>求解</em>啊。
求解!!MyEclipse抛出的异常!!
description The server encountered an internal error () that prevented it from fulfilling this request.rnrnexception rnrnorg.apache.jasper.JasperException: An exception occurred processing JSP page /denglu.jsp at line 25rnrn22: username=request.getParameter("username");rn23: pwd=request.getParameter("pwd");rn24: Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");rn25: Connection conn = DriverManager.getConnection("jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=liuyanban","sa","123qwe");rn26: Statement stmt=conn.createStatement();rn27: rn28: ResultSet rs=stmt.executeQuery("select * from zhucebiao where username=\'"+username+"\' and password=\'"+pwd+"\'");rnrnrn<em>求解</em>这些<em>异常</em>!!!多谢
ssh启动时异常!!!!求解
[i]严重: action: nullrnorg.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sess' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchMethodError: org.objectweb.asm.ClassVisitor.visit(IILjava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)VrnCaused by: java.lang.NoSuchMethodError: org.objectweb.asm.ClassVisitor.visit(IILjava/lang/String;Ljava/lang/String;[Ljava/lang/String;Ljava/lang/String;)Vrn at net.sf.cglib.core.ClassEmitter.begin_class(ClassEmitter.java:77)rn at net.sf.cglib.core.KeyFactory$Generator.generateClass(KeyFactory.java:173)rn at net.sf.cglib.core.DefaultGeneratorStrategy.generate(DefaultGeneratorStrategy.java:25)rn at net.sf.cglib.core.AbstractClassGenerator.create(AbstractClassGenerator.java:216)rn at net.sf.cglib.core.KeyFactory$Generator.create(KeyFactory.java:145)rn at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:117)rn at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:108)rn at net.sf.cglib.core.KeyFactory.create(KeyFactory.java:104)rn at net.sf.cglib.proxy.Enhancer.(Enhancer.java:69)rn at org.hibernate.proxy.pojo.cglib.CGLIBLazyInitializer.getProxyFactory(CGLIBLazyInitializer.java:117)rn at org.hibernate.proxy.pojo.cglib.CGLIBProxyFactory.postInstantiate(CGLIBProxyFactory.java:43)rn at org.hibernate.tuple.entity.PojoEntityTuplizer.buildProxyFactory(PojoEntityTuplizer.java:162)rn at org.hibernate.tuple.entity.AbstractEntityTuplizer.(AbstractEntityTuplizer.java:135)rn at org.hibernate.tuple.entity.PojoEntityTuplizer.(PojoEntityTuplizer.java:55)rn at org.hibernate.tuple.entity.EntityEntityModeToTuplizerMapping.(EntityEntityModeToTuplizerMapping.java:56)rn at org.hibernate.tuple.entity.EntityMetamodel.(EntityMetamodel.java:295)rn at org.hibernate.persister.entity.AbstractEntityPersister.(AbstractEntityPersister.java:434)rn at org.hibernate.persister.entity.SingleTableEntityPersister.(SingleTableEntityPersister.java:109)rn at org.hibernate.persister.PersisterFactory.createClassPersister(PersisterFactory.java:55)rn at org.hibernate.impl.SessionFactoryImpl.(SessionFactoryImpl.java:226)rn at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1294)rn at org.springframework.orm.hibernate3.LocalSessionFactoryBean.newSessionFactory(LocalSessionFactoryBean.java:805)rn at org.springframework.orm.hibernate3.LocalSessionFactoryBean.buildSessionFactory(LocalSessionFactoryBean.java:745)rn at org.springframework.orm.hibernate3.AbstractSessionFactoryBean.afterPropertiesSet(AbstractSessionFactoryBean.java:134)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1202)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1172)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:428)rn at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:251)rn at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:156)rn at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:248)rn at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:160)rn at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:284)rn at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:352)rn at org.springframework.web.struts.ContextLoaderPlugIn.createWebApplicationContext(ContextLoaderPlugIn.java:355)rn at org.springframework.web.struts.ContextLoaderPlugIn.initWebApplicationContext(ContextLoaderPlugIn.java:296)rn at org.springframework.web.struts.ContextLoaderPlugIn.init(ContextLoaderPlugIn.java:225)rn at org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServlet.java:869)rn at org.apache.struts.action.ActionServlet.init(ActionServlet.java:336)rn at javax.servlet.GenericServlet.init(GenericServlet.java:212)rn at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1160)rn at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:980)rn at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4044)rn at org.apache.catalina.core.StandardContext.start(StandardContext.java:4350)rn at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:760)rn at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:740)rn at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:525)rn at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:920)rn at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:883)rn at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:492)rn at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1138)rn at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)rn at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:120)rn at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1022)rn at org.apache.catalina.core.StandardHost.start(StandardHost.java:719)rn at org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1014)rn at org.apache.catalina.core.StandardEngine.start(StandardEngine.java:443)rn at org.apache.catalina.core.StandardService.start(StandardService.java:448)rn at org.apache.catalina.core.StandardServer.start(StandardServer.java:710)rn at org.apache.catalina.startup.Catalina.start(Catalina.java:552)rn at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)rn at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)rn at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)rn at java.lang.reflect.Method.invoke(Unknown Source)rn at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)rn at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:413)rn2008-9-27 12:29:24 org.apache.catalina.core.ApplicationContext logrn信息: Marking servlet action as unavailablern2008-9-27 12:29:24 org.apache.catalina.core.StandardContext loadOnStartuprn严重: Servlet /ssh1 threw load() exceptionrnjavax.servlet.UnavailableExceptionrn at org.apache.struts.action.ActionServlet.initModulePlugIns(ActionServlet.java:880)rn at org.apache.struts.action.ActionServlet.init(ActionServlet.java:336)rn at javax.servlet.GenericServlet.init(GenericServlet.java:212)rn
win7 上面 gcc 编译的程序 a exe 运行的时候报错 a exe 已停止工作, 异常代码 c0000005
win7 上面 gcc 编译的程序 a exe <em>运行</em>的时候报错 a exe 已停止工作, <em>异常</em>代码 c0000005
子程序返回异常, 求解
为什么我的子程序在用RET返回的时候rn程序重新<em>运行</em>了?rnrnmain proc farrncall initrnrnlop: call xxxxrnjmp loprnmain endprnrnlop proc near rnretrnlop endprnrn就这部分出问题了, lop返回之后, 他从新<em>运行</em>了initrn程序是small
c3p0异常求解
[code="java"]rnrncom.mchange.v2.async.ThreadPoolAsynchronousRunner - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@16597barnAPPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!rncom.mchange.v2.async.ThreadPoolAsynchronousRunner -163073277 [Timer-0] WARN com.mchange.v2.async.ThreadPoolAsynchronousRunner rncom.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@16597barnAPPARENT DEADLOCK!!! Complete Status: [num_managed_threads: 10, num_active: 10; rnactiveTasks: com.mchange.v2.c3p0.stmt.GooGooStatementCache$1@a1f903 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#4), rncom.mchange.v2.c3p0.stmt.GooGooStatementCache$1@1e35936 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#8), rncom.mchange.v2.c3p0.stmt.GooGooStatementCache$1@f5e931 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#7), rncom.mchange.v2.c3p0.stmt.GooGooStatementCache$1@a0cbf4 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1), rncom.mchange.v2.c3p0.stmt.GooGooStatementCache$1@ae1f44 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0),rncom.mchange.v2.c3p0.stmt.GooGooStatementCache$1@186daf2 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#6),rncom.mchange.v2.c3p0.stmt.GooGooStatementCache$1@906a8d (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2),rncom.mchange.v2.c3p0.stmt.GooGooStatementCache$1@1438396 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#3),rncom.mchange.v2.c3p0.stmt.GooGooStatementCache$1@173f6bb (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#9), rncom.mchange.v2.c3p0.stmt.GooGooStatementCache$1@4b8a67 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#5); rnpendingTasks: com.mchange.v2.c3p0.stmt.GooGooStatementCache$1@16b9960, com.mchange.v2.resourcepool.BasicResourcePool$6@1227588,rncom.mchange.v2.resourcepool.BasicResourcePool$6@152658a, com.mchange.v2.resourcepool.BasicResourcePool$6@885610, rncom.mchange.v2.resourcepool.BasicResourcePool$6@ca3add, com.mchange.v2.resourcepool.BasicResourcePool$6@dea987,rncom.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@4beff3, com.mchange.v2.resourcepool.BasicResourcePool$6@1765f99, rncom.mchange.v2.resourcepool.BasicResourcePool$6@7e7001]rn[/code]rn[code="java"]rnWARN com.mchange.v2.async.ThreadPoolAsynchronousRunner - Task com.mchange.v2.c3p0.stmt.GooGooStatementCache$1@f5e931 (in deadlocked PoolThread) failed to complete in maximum time 60000ms. Trying interrupt().rn[/code]rn中午重启后<em>运行</em>正常,隔天访问就会这样,<em>求解</em>。。。rn附上配置rn[code="java"]rnc3p0.acquireIncrement=3rnc3p0.initialPoolSize=3rnc3p0.idleConnectionTestPeriod=1800rnc3p0.minPoolSize=1rnc3p0.maxPoolSize=10rnc3p0.maxStatements=100rnc3p0.numHelperThreads=10rnc3p0.maxIdleTime=600rnc3p0.automaticTestTable=C3P0TestTablern[/code]rn框架用的是SSI
Hibernate登录异常求解
[code=Java]rnrn @Overridern public User isLogin(String username,String password) rnrn User user=null;rn session.beginTransaction();rn String hql=("from User u where u.username=? and u.password=?"); rn Query query=session.createQuery(hql);rn query.setString(0,username);rn query.setString(1,password);rn if(query.list().size()>0)rn rn user=(User)query.list().get(0);rn rn session.getTransaction().commit();rn return user;rn rn[/code]rnrn[color=#FF0000][b]无论是正确或者错误的用户名和密码都可以正常登录系统。。。。。<em>求解</em>????[/b][/color]
weblogic启动异常求解
[WARN ][jrockit] CompileThreshold=8000 ignored: Not a valid option for[color=#FF0000] JRockit[/color]rn[WARN ][jrockit] PermSize=48m ignored: Not a valid option for JRockitrn[WARN ][jrockit] MaxPermSize=128m ignored: Not a valid option for JRockitrn rn rn rn rn rn rn rn rn rn rnrnrn
异常分析,listenerstart异常 求解
十一月 28, 2017 10:22:16 下午 org.apache.catalina.core.StandardContext listenerStartrnSEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListenerrnorg.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sessionFactory' defined in class path resource [spring/applicationContext-db.xml]: Invocation of init method failed; nested exception is java.lang.OutOfMemoryError: PermGen spacern at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1412)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:519)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)rn at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)rn at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)rn at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)rn at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)rn at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:546)rn at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:872)rn at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:423)rn at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)rn at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)rn at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)rn at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4323)rn at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4771)rn at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:138)rn at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:785)rn at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:763)rn at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:558)rn at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1124)rn at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1047)rn at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:542)rn at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1390)rn at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:355)rn at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)rn at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:89)rn at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:312)rn at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:292)rn at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:998)rn at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:772)rn at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:138)rn at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:990)rn at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:275)rn at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:138)rn at org.apache.catalina.core.StandardService.startInternal(StandardService.java:424)rn at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:138)rn at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:648)rn at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:138)rn at org.apache.catalina.startup.Catalina.start(Catalina.java:576)rn at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)rn at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)rn at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)rn at java.lang.reflect.Method.invoke(Method.java:601)rn at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:288)rn at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:415)rnCaused by: java.lang.OutOfMemoryError: PermGen spacernrnrnrnrnrn十一月 28, 2017 10:22:17 下午 org.apache.catalina.core.StandardContext listenerStartrnSEVERE: Exception sending context initialized event to listener instance of class com.sun.faces.config.ConfigureListenerrnjava.lang.OutOfMemoryError: PermGen spacern at java.lang.ClassLoader.findBootstrapClass(Native Method)rn at java.lang.ClassLoader.findBootstrapClassOrNull(ClassLoader.java:1061)rn at java.lang.ClassLoader.loadClass(ClassLoader.java:412)rn at java.lang.ClassLoader.loadClass(ClassLoader.java:410)rn at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)rn at java.lang.ClassLoader.loadClass(ClassLoader.java:356)rn at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1579)rn at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1509)rn at com.sun.faces.config.WebConfiguration.(WebConfiguration.java:63)rn at com.sun.faces.config.WebConfiguration.getInstance(WebConfiguration.java:152)rn at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:279)rn at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4323)rn at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4771)rn at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:138)rn at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:785)rn at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:763)rn at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:558)rn at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1124)rn at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1047)rn at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:542)rn at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1390)rn at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:355)rn at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)rn at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:89)rn at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:312)rn at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:292)rn at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:998)rn at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:772)rn at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:138)rn at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:990)rn at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:275)rn at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:138)rnrnrnSSH出现以下<em>异常</em>。用了maven,pom没错。包没错。
有关异常的问题,求解
[code=java]package cn.test.exception;rn/*rn * 父类rn */rnrnpublic class Pet rn private int age;rn public Pet()rn rn rn rn public Pet(int age)rn rn this.age=age;rn rn public void setAge(int age)throws Exceptionrn rn this.age=age;rn rn public int getAge()rn rn return this.age;rn rnrnrn[/code]rnrn下面是一个子类rn[code=java]rn/*rn * dog类rn */rnpublic class Dog extends Petrn private int age;rn public void setAge(int age)throws Exceptionrn rn if(age==2)rn rn this.age=age;rn elsern rn throw new Exception("只能是2条腿");rn rn rnrnrn[/code]rn下面是测试类rn[code=java]rn/*rn * 测试类rn */rnpublic class Test rn public static void main(String []args)rn rn Pet dog=new Dog();rn try rn dog.setAge(2);rn catch (Exception e) rn // TODO Auto-generated catch blockrn e.printStackTrace();rn rn System.out.println("狗腿数"+dog.getAge());rn rnrnrn[/code]rn这三段代码有什么问题呀,为什么我输出狗的腿数不对?不是2 是0??<em>求解</em><em>异常</em>不是很清楚
hibernate异常 求解
Exception in thread "C3P0PooledConnectionPoolManager-AdminTaskTimer" java.lang.NullPointerExceptionrn at com.mchange.v2.log.log4j.Log4jMLog$Log4jMLogger.isLoggable(Log4jMLog.java:281)rn at com.mchange.v2.resourcepool.BasicResourcePool$CullTask.run(BasicResourcePool.java:2072)rn at java.util.TimerThread.mainLoop(Timer.java:512)rn at java.util.TimerThread.run(Timer.java:462)rn
C# 新人 异常求解
[img=https://img-bbs.csdn.net/upload/201512/20/1450604121_722428.png][/img]rn文件管理器,<em>异常</em><em>求解</em>
web项目异常求解
java.lang.NoClassDefFoundError: org/apache/struts2/util/ObjectFactoryDestroyablern at org.apache.struts2.dispatcher.Dispatcher.cleanup(Dispatcher.java:263)rn at org.apache.struts2.dispatcher.FilterDispatcher.destroy(FilterDispatcher.java:238)rn at org.apache.catalina.core.ApplicationFilterConfig.release(ApplicationFilterConfig.java:332)rn at org.apache.catalina.core.StandardContext.filterStop(StandardContext.java:3731)rn at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4493)rn at org.apache.catalina.startup.HostConfig.checkResources(HostConfig.java:1097)rn at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1203)rn at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:293)rn at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)rn at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)rn at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)rn at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)rn at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)rn at java.lang.Thread.run(Thread.java:619)rnCaused by: java.lang.ClassNotFoundException: org.apache.struts2.util.ObjectFactoryDestroyablern at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1358)rn at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1204)rn at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)rn ... 14 morern
异常 框架 求解!!!
一个实现类 Class1. 类的某个过程发现<em>异常</em>(也可以自己丢出一个字符串当作<em>异常</em>的信息).这时候要吧<em>异常</em>的信息传递到 调用Class1的类.rnrn用事件.发现弄到后面很不规范rn谢谢!!
求解,axis webservice 异常
完全按照下面教程中的步骤做的:rn1.即时发布 JWS (Java Web Service) Files - InstantrnDeploymentrn即时发布提供了一种非常简单发布方式,发布者只要有Java 源代码(也就是.java 文件),rn然后把其后缀名改成jws ( 也就是 java web service 的缩写) 拷贝到rn%TOMCAT_HOME%\webapps\axis 目录下即完成了所有的发布工作。AXIS 的编译引擎会处rn理接下来的所有事情。下面是一段示例代码:rnjava 代码rnpublic class HelloAXIS rnpublic String Hello(String name)rnreturn "AXIS say hello to " + name;rnrnrn把 HelloAXIS.java 文件改成 HelloAXIS.jws 然后拷贝到rn%TOMCAT_HOME%\webapps\axis 目录下, 启动Tomcat 之后访问rnhttp://localhost:8080/axis/HelloAXIS.jws 如果能看到 Click to see the WSDL 这个超链接就说rn明已经发布成功了,点击进去就可以看到这个Webservice 的WSDL 描述文件。server 端的rn发布已经完成了,接下来就是编写Client 端测试代码了。rnjava 代码rnpackage com.chnic.test;rnimport java.net.URL;rnimport javax.xml.namespace.QName;rnimport org.apache.axis.client.Call;rnimport org.apache.axis.client.Service;rnpublic class Test rnpublic static void main(String[] args) throws ExceptionrnString targetEendPoint = "http://localhost:8080/axis/HelloAXIS.jws";rnService service = new Service();rnCall call = (Call) service.createCall();rncall.setOperationName(new QName(targetEendPoint, "Hello"));rncall.setTargetEndpointAddress(new URL(targetEendPoint));rnString result = (String) call.invoke(new Object[]"Robert");rnSystem.out.println(result);rnrnrn测试代码很简单,如果熟悉java 反射机制的朋友不用两分钟就能看明白。<em>运行</em>后客rn户端控制台出现 AXIS say hello Robert。测试成功。果然很简单吧。不过在这简单背后却是rn以牺牲灵活性为代价的。假如你现在手里只有.class 或者一个jar 包,jws 就不再能满足你的rn需求了,最要命的就是即时发布不支持带包的类,这点AXIS 的用户手册上写的也很明白。rnrn执行Test.jav的时候出现如下<em>异常</em>:rnException in thread "main" AxisFaultrn faultCode: http://schemas.xmlsoap.org/soap/envelope/Server.userExceptionrn faultSubcode: rn faultString: java.net.SocketException: Network is unreachable: connectrn faultActor: rn faultNode: rn faultDetail: rnrnTOMCAT已经启动,url可以通过浏览器访问,可是为什么在执行客户端的时候报出:java.net.SocketException: Network is unreachable: connect呢?rnrngoogle没能解决,baidu也没能解决。
求解这个异常怎么回事
String resultStr = response.body().string();n JSONObject jsonObj = new JSONObject(resultStr);n String iconImg = jsonObj.getString("iconImg");n String result = jsonObj.getString("result");nnn<em>运行</em> 就报这个<em>异常</em> org.json.JSONException: Value 260 of type java.lang.Integer cannot be converted to JSONObject
运行时的异常 求解
<em>运行</em>时的<em>异常</em>:rn[System.InvalidOperationException] = "rnrnAction being performed on this control is being called from the wrong thread. Marshal to the correct thread using Control.Invoke or Control.BeginInvoke to perform this action.rnrn"rn我不了接rnrn能不能详细说说,往宽泛方面展开说说。
hibernate异常求解
[color=#FF0000]<em>异常</em>问题:[/color]rnorg.hibernate.MappingException: invalid configurationrn at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1579)rn at org.hibernate.cfg.Configuration.configure(Configuration.java:1520)rn at org.hibernate.cfg.Configuration.configure(Configuration.java:1506)rn at com.baidu.model.Test.main(Test.java:14)rnCaused by: org.xml.sax.SAXParseException: Document root element "hibernate-configuration", must match DOCTYPE root "hibernate-mapping".rn at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195)rn at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:131)rn at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:384)rn at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:318)rn at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.rootElementSpecified(XMLDTDValidator.java:1621)rn at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.handleStartElement(XMLDTDValidator.java:1900)rn at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(XMLDTDValidator.java:764)rn at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:400)rn at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl$NSContentDriver.scanRootElementHook(XMLNSDocumentScannerImpl.java:626)rn at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:3095)rn at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:921)rn at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648)rn at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140)rn at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510)rn at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:807)rn at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737)rn at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:107)rn at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205)rn at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522)rn at org.dom4j.io.SAXReader.read(SAXReader.java:465)rn at org.hibernate.cfg.Configuration.doConfigure(Configuration.java:1576)rn ... 3 morernrnrn[color=#FF0000]hibernate.cfg.xml[/color]rnrnrnrnrnrn rnrn rn com.mysql.jdbc.Driverrn jdbc:mysql://localhost:8080/Welcome2Hibernatern rootrn rootrnrn rn 1rnrn rn org.hibernate.dialect.MySQLDialectrnrn rn thread rnrn rn org.hibernate.cache.NoCacheProviderrnrn rn truern rn rnrn rn creaternrn rn rn rnrnrnrn[color=#FF0000]User.hbm.xml[/color]rnrnrn rnrn rn rn rn rn rn rn rn rn
关于异常求解
问题如下例所示:rnrnclass Arnrn tryrn rn //引发<em>异常</em>的代码rn rn catchrn rn B b = new B();rn rnrnclass Brnrn public B()rn rn //在这里能否访问到A中引发的<em>异常</em>堆栈?rn rnrnrn只是想学学知识,不是要解决什么实际问题,所以:rn1.请避免讨论代码的实际意义(因为本来就没有:) )rn2.请不要建议我修改或者增加Class A的代码rn3.如果您认为可以或者不可以,都请您尽可能详细的解释一下原理。rn4.可以义务帮顶,哈哈rnrn以上,谢谢!
hibernate的异常,求解,
rnorg.hibernate.HibernateException: identifier of an instance of model.MemberPropertiesHr altered from 0BBA671B-FC1F-4ED3-9247-8E241FAAC3EB to nullrn at org.hibernate.event.def.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:51)rn at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:82)rn at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:190)rn at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:70)rn at org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:39)rn at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:711)rn at org.hibernate.impl.SessionImpl.prepareQueries(SessionImpl.java:895)rn at org.hibernate.impl.SessionImpl.getQueries(SessionImpl.java:885)rn at org.hibernate.impl.SessionImpl.list(SessionImpl.java:834)rn at org.hibernate.impl.QueryImpl.list(QueryImpl.java:74)rn at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:603)rn at control.dao.impl.DefaultSiteSettingDAO.getDefaultSetting(DefaultSiteSettingDAO.java:195)rn at control.service.SiteSettingService.getDefaultSetting(SiteSettingService.java:177)rn at struts.action.MemberAction.list(MemberAction.java:83)rn at struts.action.MemberAction.createsave(MemberAction.java:874)rn at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)rn at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)rn at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)rn at java.lang.reflect.Method.invoke(Unknown Source)rn at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:276)rn at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:196)rn at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:421)rn at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226)rn at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1158)rn at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)rn at servlet.filter.HibernateSessionFilter.doFilter(HibernateSessionFilter.java:39)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)rn at servlet.filter.PreSecurityFilter.doFilter(PreSecurityFilter.java:57)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)rn at servlet.filter.ActionFilter.doFilter(ActionFilter.java:68)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)rn at servlet.filter.EncodingFilter.doFilter(EncodingFilter.java:23)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)rn at servlet.filter.RequestFilter.doFilter(RequestFilter.java:22)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)rn at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)rn at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)rn at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)rn at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)rn at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)rn at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)rn at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)rn at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)rn at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)rn at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)rn at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)rn at java.lang.Thread.run(Unknown Source)rnjava.lang.NullPointerException
求解: hibernate dao.findby*异常
1,出现问题的语句:rnString str = new String("最新图书");rnSectionInfo newBook = (SectionInfo)sectionDao.findBySection(str);rn2,调用的方法:rnpublic List findBySection(Object section) rn return findByProperty(SECTION, section);rn rnpublic List findByProperty(String propertyName, Object value) rn log.debug("finding SectionInfo instance with property: " + propertyNamern + ", value: " + value);rn try rn String queryString = "from SectionInfo as model where model."rn + propertyName + "= ?";rn Query queryObject = getSession().createQuery(queryString);rn queryObject.setParameter(0, value);rn return queryObject.list();rn catch (RuntimeException re) rn log.error("find by property name failed", re);rn throw re;rn rn rn3,出现的<em>异常</em>:rnorg.apache.jasper.JasperException: javax.servlet.ServletException: java.lang.ClassCastException: java.util.ArrayListrn org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:541)rn org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:417)rn org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)rn org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)rn javax.servlet.http.HttpServlet.service(HttpServlet.java:803)rn4,<em>求解</em>?
项目异常求解
严重: Exception invoking periodic operation: rnjava.lang.NoClassDefFoundError: org/apache/struts2/util/ObjectFactoryDestroyablern at org.apache.struts2.dispatcher.Dispatcher.cleanup(Dispatcher.java:263)rn at org.apache.struts2.dispatcher.FilterDispatcher.destroy(FilterDispatcher.java:238)rn at org.apache.catalina.core.ApplicationFilterConfig.release(ApplicationFilterConfig.java:332)rn at org.apache.catalina.core.StandardContext.filterStop(StandardContext.java:3731)rn at org.apache.catalina.core.StandardContext.stop(StandardContext.java:4493)rn at org.apache.catalina.startup.HostConfig.checkResources(HostConfig.java:1097)rn at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1203)rn at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:293)rn at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)rn at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1337)rn at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1601)rn at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1610)rn at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1590)rn at java.lang.Thread.run(Thread.java:619)
j2ee异常求解
2012-4-26 11:42:21 org.apache.catalina.core.ApplicationDispatcher invokern严重: Servlet.service() for servlet jsp threw exceptionrnjava.lang.NoSuchMethodException: Unknown property 'Sid'rn at org.apache.commons.beanutils.PropertyUtilsBean.getSimpleProperty(PropertyUtilsBean.java:1122)rn at org.apache.commons.beanutils.PropertyUtilsBean.getNestedProperty(PropertyUtilsBean.java:686)rn at org.apache.commons.beanutils.PropertyUtilsBean.getProperty(PropertyUtilsBean.java:715)rn at org.apache.commons.beanutils.PropertyUtils.getProperty(PropertyUtils.java:290)rn at plantix.web.components.ext.grid.GridData.toJSONData(GridData.java:137)rn at plantix.web.components.ext.grid.GridData.toJSONString(GridData.java:108)rn at org.apache.jsp.tag.web.ptxext.griddata_tag.doTag(griddata_tag.java:99)rn at org.apache.jsp.WEB_002dINF.pages.bb.aa.listPtx_005fuserData_jsp._jspx_meth_p_005fgriddata_005f0(listPtx_005fuserData_jsp.java:89)rn at org.apache.jsp.WEB_002dINF.pages.bb.aa.listPtx_005fuserData_jsp._jspService(listPtx_005fuserData_jsp.java:62)rn at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)rn at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)rn at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)rn at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:646)rn at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:436)rn at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:374)rn at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:302)rn at org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:154)rn at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)rn at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:361)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:265)rn at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:163)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:249)rn at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:68)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:122)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:195)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:148)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:93)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:235)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:89)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:128)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.java:104)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:267)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:126)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:138)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:87)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:148)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:128)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:176)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:236)rn at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:52)rn at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:468)rn at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.java:395)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at plantix.web.filter.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:84)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at plantix.core.context.ThreadContextCleanerFilter.doFilter(ThreadContextCleanerFilter.java:35)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)rn at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)rn at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)rn at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)rn at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)rn at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)rn at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:293)rn at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:849)rn at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)rn at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:454)rn at java.lang.Thread.run(Thread.java:619)rnrnrn
ssh 项目 异常 求解
小弟在写一个小项目 遇到了Caused by: java.lang.NumberFormatException: For input string: ""<em>异常</em>,弄了一天还没找到错无的根源,<em>求解</em> 急!!!
bcp Proc异常求解
请教大神.rn我用下面这段执行是成功的,数据可以正常写入rnexec master..xp_cmdshell 'bcp AppStoreAnalysis.dbo.ActionLog in D:\Log\log.txt -f D:\Log\fmt\myLogFormatFiles.Xml -T'rnrn可是改成proc,<em>运行</em>就挂了.rn错误提示:未提供用户名,请使用 -U 提供用户名,或者使用 -T 指定可信连接rnproc:rnALTER PROCEDURE [dbo].[sp_bcp_tb_log]rn @filePath varchar(50),rn @fmtPath varchar(50)rnASrnBEGIN rn declare @temp varchar(400); rn set @temp = 'bcp AppStoreAnalysis.dbo.ActionLog in '+@filePath+' -f '+ @fmtPath +'-T';rn exec master..xp_cmdshell @temp;rnENDrnrnexec sp_bcp_tb_log 'D:\Log\log.txt','D:\Log\fmt\myLogFormatFiles.Xml'rnrn大神帮看下
sun.io.MalformedInputException异常求解
大家好!rnrn我很郁闷,我的一个程序偶尔报“sun.io.MalformedInputException”。rnrn详细信息:rnrnrnsun.io.MalformedInputExceptionrn at sun.io.ByteToCharUTF8.convert(ByteToCharUTF8.java(Compiled Code))rn at java.io.InputStreamReader.convertInto(InputStreamReader.java(Inlined Compiled Code))rn at java.io.InputStreamReader.fill(InputStreamReader.java(Compiled Code))rn at java.io.InputStreamReader.read(InputStreamReader.java(Compiled Code))rn at java.io.BufferedReader.fill(BufferedReader.java(Compiled Code))rn at java.io.BufferedReader.readLine(BufferedReader.java(Compiled Code))rn at java.io.BufferedReader.readLine(BufferedReader.java(Compiled Code))rn at dsmpboss.servlet.HomeReceiver.Process(HomeReceiver.java:77)rn at dsmpboss.servlet.HomeReceiver.service(HomeReceiver.java:237)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code))rn at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java(Compiled Code))rn at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java(Compiled Code))rn at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java(Inlined Compiled Code))rn at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java(Compiled Code))rn at weblogic.security.service.SecurityServiceManager.runAs(SecurityServiceManager.java(Compiled Code))rn at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java(Compiled Code))rn at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java(Compiled Code))rn at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java(Compiled Code))rn at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:219)rnrnrnrn代码:rnrnrntry rn BufferedReader in = new BufferedReader(new InputStreamReader(request.getInputStream(),"UTF-8"));rn while ((sLine = in.readLine()) != null) rn sbBuf.append(sLine);rn rn in.close();rn catch (Exception e2 ) rn System.out.println("get package from client error!");rn throw e2;rn rnrn gsInputData = sbBuf.toString();rn gsInputData = gsInputData.substring(9,gsInputData.length());rnrnrnrnrnrnrnrn现象:主要是当报文中有汉字时比较容易报这个错,但是不是全错,还是有解析正确的。
qqbot在服务器启动
前言nqqbot的github地址https://github.com/pandolia/qqbot。 我看了一下csdn、博客园这些有关qqbot的博文大部分都是说明如何在本地电脑上<em>运行</em>的。而在服务器端<em>运行</em>的很少。现在来讲一下如何在服务器端使用qqbot完成自动回复消息的程序。nqqbot是什么?n是用python写的一个程序。有了它,你就能实现下面这些功能nn监控、收集 QQ 消息n自动消息...
常见的运行异常与编译时异常举例
一、区别nn看一个<em>异常</em>是<em>运行</em>时还是编译时<em>异常</em>,最简单的方法是看他的父类或者看他的爷爷、太爷爷...(开个玩笑)是不是RuntimeException。nn比较通俗易懂的方法是,你把代码写出来之后,有红色波浪线提示你抛出或捕获<em>异常</em>,这个时候正处于编译阶段,所以是编译时<em>异常</em>,如下图所示:nnnnnn二、常见的编译时<em>异常</em>nn1.FileNotFoundExceptionnn2.ClassNotFound...
Choco求解器的安装
Choco<em>求解</em>器的安装rnChoco<em>求解</em>器的安装必须要保证是JAVA8(JDK1.8)非常重要,否则可能会安装不全包。rnChoco<em>求解</em>器是约束满足问题较为成熟的<em>求解</em>器,可以利用这个平台做约束满足问题的二次开发。rnrnrn安装步骤:rn1.在Choco的官方网站:http://www.choco-solver.org/   上下载choco-4.0.4.ziprnrn2.下载maven软件,如果
javaSE 异常,throw(抛出异常对象),throws(声明异常)
Demo.java:package cn.xxx.demo;n/*n * throw关键字:抛出<em>异常</em>n * throw,在方法内部,抛出具体<em>异常</em>对象n * throw 后面,必须写new 对象,必须是<em>异常</em>的对象(Exception或其子类)n * n * throws关键字:声明<em>异常</em>n * throws 用于在方法的声明上,标明此方法,可能出现的<em>异常</em>n * thr...
windows下编译以及运行cryptominisat 求解器(sat求解器)
    cryptominisat是由msoos所开发的一款sat<em>求解</em>器,sat的具体问题另外一篇博客里有详细介绍,本篇文章只介绍如何在windows下<em>运行</em>cryptominisat,将自己遇到的坑都写下来,方便后来人。sat<em>求解</em>器cryptominisat下载:点击打开链接从链接中下载sat<em>求解</em>器后,链接中提供了如何在windows下编译源码,具体步骤参考下图,    注意:这里的编译器使用的是...
编译期异常运行异常
rn<em>异常</em>有编译期<em>异常</em>(Exception)和<em>运行</em>期(RuntimeException)<em>异常</em>rn<em>运行</em>期<em>异常</em>可以解决也可以不解决。rn1.如果我们不处理,会抛给JVM处理,JVM的默认处理方式,是打印<em>异常</em>信息,并终止虚拟机rn2.自己处理,用try,catch 处理,try里放的是有可能会出现问题的代码,捕捉<em>异常</em>时,多个<em>异常</em>可以并列,如果这些<em>异常</em>之间有继承关系,那么大的<em>异常</em>要放在后面。rn编译期<em>异常</em>必须解决,编...
JAVA运行异常和非运行异常
1,<em>运行</em>时<em>异常</em>:程序员不需要去处理,当<em>异常</em>出现的时候,JVM会为我们处理,常见的如下:nn   I,类转换<em>异常</em>:ClassCastExceptionnn  II,数组越界<em>异常</em>:IndexOutOfBoundsExceptionnn III,空指针<em>异常</em>:NullPointerExceptionnnIV,数据存储<em>异常</em>:ArraysStoreExceptionnn V,IO操作<em>异常</em>:BufferOver...
java代码运行时间超时exception方法
final ExecutorService service = Executors.newSingleThreadExecutor(); Callable theCode = new Callable() { public String call() { }n };n n try {n final Future future = service.submit (theCode);
运行异常和受检查异常的区别
java程序设计语言提供了三种可抛出结构:受检查时<em>异常</em>(checked exception),<em>运行</em>时(run-time exception)和错误 (error)nnjava<em>异常</em>:受检查时<em>异常</em>和<em>运行</em>时<em>异常</em>(非编译时<em>异常</em>)nn首先介绍一下我们常见的集中描述:受检查时<em>异常</em>,编译<em>异常</em>,非<em>运行</em>时<em>异常</em> 描述可以理解为同一个意思,nn<em>运行</em>时<em>异常</em>,非编译时<em>异常</em>,非受检查时<em>异常</em> 等同 // 非受检查的可...
线程池任务运行异常不提示解决方案
线程池任务<em>运行</em><em>异常</em>不提示解决方案n在编写应用日志功能的时候,用户的操作要记录日志,使用的是自定义注解AOP的方式,日志保存使用的异步的方式(spring的 @Async)n在保存时遇到<em>异常</em>没有<em>异常</em>处理n之前看《Java 高并发程序设计》的时候有点印象,有些线程池没有<em>异常</em>处理机制,需要自定义n书中有一段代码是自定义线程池<em>异常</em>npublic class TraceThreadPoolExecutor...
运行所选代码生成器时出错:无效指针(异常来自HRESULT:0x80004003(E_POINTER))
在使用VS2015 学MVC的时候,在controllers的方法添加view时报的一个错误,网上给出的方法都是说安装下图的一个包,nn但,安装完之后,任然不行,后来偶然看到网上有一个帖子说是要<em>运行</em>devenv.exe /resetuserdata,然后就关闭VS2015所有实例,单击“开始”“<em>运行</em>”或者win+R键,输入“devenv.exe /resetuserdata”,此命令会<em>运行</em>几分钟时...
系统异常修复工具 (beta 2.0)
系统<em>异常</em>修复工具(金山公司出品),可以强行修复系统启动或<em>运行</em><em>异常</em>
简单的PDE求解偏微分方程
简单的PDE<em>求解</em>偏微分方程
Delphi异常监测实例程序
摘要:Delphi源码,其它类别,<em>异常</em>监测   Delphi<em>异常</em>监测实例程序,用于在finally..end中检测是否有<em>异常</em>发生。本示例<em>运行</em>中可能弹出<em>异常</em>。
10个Java常见运行异常
java.lang.NullPointerException rnrn这个<em>异常</em>的解释是 "程序遇上了空指针 ",简单地说就是调用了未经初始化的对象或者是不存在的对象,这个错误经常出现在创建图片,调用数组这些操作中,比如图片未经初始化,或者图片创建时的路径错误等等。对数组操作中出现空指针,即把数组的初始化和数组元素的初始化混淆起来了。数组的初始化是对数组分配需要的空间,而初始化后的数组,其中的元素并
JAVA运行异常及检查式异常
n欢迎支持笔者新作:《深入理解Kafka:核心设计与实践原理》和《RabbitMQ实战指南》,同时欢迎关注笔者的微信公众号:朱小厮的博客。nnnn nnjava<em>运行</em>时<em>异常</em>是可能在java虚拟机正常工作时抛出的<em>异常</em>。nnjava提供了两种<em>异常</em>机制。一种是<em>运行</em>时<em>异常</em>(RuntimeExepction),一种是检查式<em>异常</em>(checked execption)。nn检查式<em>异常</em>:我们经常遇到的IO<em>异常</em>及sq...
java用户自定义异常程序
用户自行定义一个<em>异常</em>,编程创建并抛出某个<em>异常</em>类的实例,<em>运行</em>该程序并观察执行结果。
win7 上面 gcc 编译的程序 a.exe 运行的时候报错 a.exe 已停止工作, 异常代码:c0000005
win7 上面 gcc 编译的程序 a.exe <em>运行</em>的时候报错 a.exe 已停止工作, <em>异常</em>代码:c0000005:rnrnrnrnrnrn原因分析:rn一开始我以为是我的代码的问题,后来查询了这个错误码发现原来是兼容性的问题。rn因为兼容性的问题,右键a.exe 文件,点击兼容性,勾选上以兼容模式<em>运行</em>这个程序,我的是windows 7,所以选择windows 7rnrnrnrnrnrnrn参考
java异常处理 Exception、error、运行异常和一般异常有何异同
一、开场白nn对于程序<em>运行</em>过程中的可能出现<em>异常</em>情况,java语言使用一种称为<em>异常</em>处理的错误捕捉机制进行处理。相信大家对 try { }catch( ){} finally{} 这种结构非常熟悉,使用频率极高。既然经常使用它,而且也是面试常问知识点,我们就有必要去深入地了解一下。也谈不上深入,只是java语言的基本功。下面,开始吧!nn二、<em>异常</em>分类nn在java中,<em>异常</em>对象都是派生于Throwabl...
LS-DYNA显示—隐式求解步骤
LS-DYNA显示和隐式<em>求解</em>步骤,一步步教你怎么做,十分详细
区分运行异常和受检查异常【文摘+转】
正确运用<em>异常</em>处理机制,有助于提高程序的健壮性。rn rn所谓程序的健壮性,就是指程序在多数情况下能够正常<em>运行</em>,返回预期的正确结果;如果偶尔遇到<em>异常</em>情况,程序也能采取周到的解决措施。rn rn受检查<em>异常</em>表示程序可以处理的<em>异常</em>,如果抛出<em>异常</em>的方法本身不能处理它,那么方法调用者应该去处理它,从而使程序恢复<em>运行</em>,不至于终止程序。例如,喷墨打印机在打印文件时,如果纸用完或者墨水用完,就会暂停打印,等待用户添...
运行异常与受检异常的异同
<em>异常</em>表示程序<em>运行</em>过程中可能出现的非正常状态,<em>运行</em>时<em>异常</em>表示虚拟机的通常操作中可能遇到的<em>异常</em>,是一种常见<em>运行</em>错误,只要程序设计得没有问题通常就不会发生。受检<em>异常</em>跟程序<em>运行</em>的上下文环境有关,即使程序设计无误,仍然可能因使用的问题而引发。Java编译器要求方法必须声明抛出可能发生的受检<em>异常</em>,但是并不要求必须声明抛出未被捕获的<em>运行</em>时<em>异常</em>。<em>异常</em>和继承一样,是面向对象程序设计中经常被滥用的东西,在Effecti
Java常见的运行异常
- ArithmeticException(算术<em>异常</em>) nn- ClassCastException (类转换<em>异常</em>) nn- IllegalArgumentException (非法参数<em>异常</em>) nn- IndexOutOfBoundsException (下标越界<em>异常</em>) nn- NullPointerException (空指针<em>异常</em>) nn- SecurityException (安全<em>异常</em>)nn...
hadoop运行job任务出现异常
在<em>运行</em>hadoop进行数据mr的过程中,出现了<em>异常</em>,调了好久,so记录下来,给出现同样情况的小伙伴们一点参考:n一、Filesystem closed<em>异常</em>如下:njava.io.IOException: Filesystem closednat org.apache.hadoop.hdfs.DFSClient.checkOpen(DFSClient.java:795)nat org.apa
hessenberg矩阵求导计算
用于<em>求解</em>hessenberg矩阵,完整可<em>运行</em>,可用于数值分析
Matlab求解Var代码
Matlab编写的代码,<em>求解</em>var在险价值。可<em>运行</em>
纳什均衡点
<em>求解</em>纳什均衡点的matlab代码,可以<em>运行</em>出结果。
高斯约旦消去法求线性方程组的解
高斯约旦消去<em>求解</em>线性方程组的完整C++代码,能够<em>运行</em>。
雅克比求解线性方程组
雅克比<em>求解</em>线性方程组,<em>求解</em>过程是一个迭代的过程,这里是源代码,经过了调试和<em>运行</em>,可以直接使用。
C++编写的单纯形法的程序
用单纯形法<em>求解</em>线性规划问题,C语言编程,可<em>运行</em>通过
对偶行法求解线性规划源码
用对偶性法<em>求解</em>线性规划的C#源码! 可以<em>运行</em>!
约瑟夫环问题求解
约瑟夫环<em>求解</em> C++ 源程序 可以直接<em>运行</em>的cPP文件
阶跃响应性能指标
matlab源码,<em>求解</em>连续系统的性能指标!可直接<em>运行</em>!
蚁群算法求解旅行商问题
蚁群算法用于<em>求解</em>旅行商问题。该算法完整,可以<em>运行</em>。
C Primer Plus(第五版)中文版下载
C Primer Plus(第五版)中文版 pdf 相关下载链接:[url=//download.csdn.net/download/sany000/909202?utm_source=bbsseo]//download.csdn.net/download/sany000/909202?utm_source=bbsseo[/url]
javamail.jar+jaf.jar下载
进行java邮件开发的必备jar包,javamail.jar和jaf.jar,必须同时导入项目,因为javamail.jar依赖于外部的jar包jaf.jar,否则会出错。 相关下载链接:[url=//download.csdn.net/download/bigmeal/3685791?utm_source=bbsseo]//download.csdn.net/download/bigmeal/3685791?utm_source=bbsseo[/url]
RHCT综合考题(一)下载
考试分为两部分, 第一部分为troubleshooting, 有四道题, 必须全对,才能通过,第二部分为安装及服务配置, 必须完成70%,才能合格. 相关下载链接:[url=//download.csdn.net/download/yunchuixue1989/3379901?utm_source=bbsseo]//download.csdn.net/download/yunchuixue1989/3379901?utm_source=bbsseo[/url]
文章热词 机器学习教程 Objective-C培训 交互设计视频教程 颜色模型 设计制作学习
相关热词 mysql关联查询两次本表 native底部 react extjs glyph 图标 java异常学习 java学习异常
我们是很有底线的