The method addBatch(String) is undefined for the type String [问题点数:40分,结帖人a_elegant_joker]

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错误提示:The method parseInt(String) is undefined for the type Loginsample
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///////////////rn// 代码如下rn///////////////rnrnrnrnrnrnrnrnrnrnrnrnrnrnrn rn create.jsprnrnrn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rnrnrn///////////////////////rn// 下面是错误信息:rn//////////////////////*rnAn error occurred at line: 68 in the jsp file: /create.jsprnGenerated servlet error:rnThe <em>method</em> equlas(String) is <em>undefined</em> for the <em>type</em> Stringrn/////////////////////*/rn// JDK1.5 + Tomcat 5.5rn
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The method add(string) in the type ArrayList is not applicable for the a
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编译/执行Y的时候,找不到X的实体; 1.必须在同一个类中 2.同一类中,X需写在Y之前
【错误集】The method parseArray(String, Class) is undefined for the type JSON
前言: 项目编写的出现了这个错误,The <em>method</em> parseArray(String, Class&lt;Map&gt;) is <em>undefined</em> for the <em>type</em> JSON,如图所示。 错误原因: 导包出现错误。 应该导这个包。 ...
The method getJspApplicationContext(ServletContext) is undefined for the type JspFactory
在使用Maven项目构建JSP时,Tomcat版本是7.x,jdk是1.7.0-79,项目出现如下错误 exception  org.apache.jasper.JasperException: Unable to compile class for JSP:  An error occurred at line: 23 in the generated java file The <em>method</em>...
The method setDefaultCloseOperation(int) is undefined for the type
public class MainFrame extends Frame implements ActionListener{     .......    this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)     ........ } 在执行以上代码时this.setDefaultCloseOperation(JFram
The method getbean(String) is undefined for the type StuNewAddAction
package com.yourcompany.struts.action; import java.util.List; import javax.servlet.http.HttpServletR
The method list(String, Object[]) is ambiguous for the type BaseHibernateDao
@Overridern public List listAll(int pn, int pageSize) rn return list(HQL_LIST_ALL, pn, pageSize);rn rn rn @Overridern public List pre(PK pk, int pn, int pageSize) rn if(pk == null) rn return list(HQL_LIST_ALL, pn, pageSize);rn rn //倒序,重排rn List result = list(HQL_OPTIMIZE_PRE_LIST_ALL, 1, pageSize, pk);rn Collections.reverse(result);rn return result;rn rn @Overridern public List next(PK pk, int pn, int pageSize) rn if(pk == null) rn return list(HQL_LIST_ALL, pn, pageSize);rn rn return list(HQL_OPTIMIZE_NEXT_LIST_ALL, 1, pageSize, pk);rn rnrn @Overridern public void flush() rn getSession().flush();rn rnrn @Overridern public void clear() rn getSession().clear();rn rnrn protected long getIdResult(String hql, Object... paramlist) rn long result = -1;rn List list = list(hql, paramlist);rn if (list != null && list.size() > 0) rn return ((Number) list.get(0)).longValue();rn rn return result;rn rnrn protected List listSelf(final String hql, final int pn, final int pageSize, final Object... paramlist) rn return this. list(hql, pn, pageSize, paramlist);rn rnrnrn /**rn * for inrn */rn @SuppressWarnings("unchecked")rn protected List listWithIn(final String hql,final int start, final int length, final Map> map, final Object... paramlist) rn Query query = getSession().createQuery(hql);rn setParameters(query, paramlist);rn for (Entry> e : map.entrySet()) rn query.setParameterList(e.getKey(), e.getValue());rn rn if (start > -1 && length > -1) rn query.setMaxResults(length);rn if (start != 0) rn query.setFirstResult(start);rn rn rn List results = query.list();rn return results;rn rnrn @SuppressWarnings("unchecked")rn protected List list(final String hql, final int pn, final int pageSize, final Object... paramlist) rn Query query = getSession().createQuery(hql);rn setParameters(query, paramlist);rn if (pn > -1 && pageSize > -1) rn query.setMaxResults(pageSize);rn int start = PageUtil.getPageStart(pn, pageSize);rn if (start != 0) rn query.setFirstResult(start);rn rn rn if (pn < 0) rn query.setFirstResult(0);rn rn List results = query.list();rn return results;rn rn
The method getJspApplicationContext(ServletContext) is undefined for the type
项目之前都是好好的,运行正常,但不知啥原因,突然不能正常运行,所有访问都报这个错误码,其它项目可以正常运行,rn在网上找了一圈,都是说建立web项目时生成servlet-api.jar,jsp-api.jar与tomcat的包有冲突,比tomca版本低rn但我没有发现我的项目有重复的这些包,大家没有遇到这个问题rnrn2014-3-31 9:38:37 org.apache.jasper.compiler.TldLocationsCache tldScanJarrn信息: At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.rn2014-3-31 9:38:39 org.apache.catalina.core.StandardWrapperValve invokern严重: Servlet.service() for servlet [jsp] in context with path [/MobileHospital_bank] threw exception [Unable to compile class for JSP: rnrnAn error occurred at line: [36] in the generated java file: [D:\apache-tomcat-7.0.42\work\Catalina\localhost\test_project\org\apache\jsp\index_jsp.java]rnThe <em>method</em> getJspApplicationContext(ServletContext) is <em>undefined</em> for the <em>type</em> JspFactoryrnrnStacktrace:] with root causernorg.apache.jasper.JasperException: Unable to compile class for JSP: rnrnAn error occurred at line: [36] in the generated java file: [D:\apache-tomcat-7.0.42\work\Catalina\localhost\test_project\org\apache\jsp\index_jsp.java]rnThe <em>method</em> getJspApplicationContext(ServletContext) is <em>undefined</em> for the <em>type</em> JspFactoryrnrnStacktrace:rn at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:103)rn at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:366)rn at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:468)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:378)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:353)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:340)rn at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:646)rn at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:357)rn at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)rn at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)rn at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)rn at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter(StrutsPrepareAndExecuteFilter.java:96)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)rn at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)rn at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)rn at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:611)rn at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)rn at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)rn at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)rn at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)rn at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)rn at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)rn at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)rn at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)rn at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)rn at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)rn at java.lang.Thread.run(Thread.java:662)rn
The method getPartNum() is undefined for the type UserDaoImpl
[code=Java]严重: Servlet.service() for servlet jsp threw exceptionrnorg.apache.jasper.JasperException: Unable to compile class for JSP: rnrnAn error occurred at line: 28 in the jsp file: /<em>method</em>.jsprnThe <em>method</em> getPartNum() is <em>undefined</em> for the <em>type</em> UserDaoImplrn25: rn26: rn27: rn28: tolNum:rn29: rn30: rnrnrnStacktrace:rn at org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:92)rn at org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:330)rn at org.apache.jasper.compiler.JDTCompiler.generateClass(JDTCompiler.java:439)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:312)rn at org.apache.jasper.compiler.Compiler.compile(Compiler.java:299)rn at org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)rn at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)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.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)[/code]rn我明明在UserDaoImpl中定义了getPartNum()的方法,但是为什么回出这样的错误呢?
The method getTextContent() is undefined for the type Node
import org.w3c.dom.Node;rn为什么这里的node.getTextContent()方法在jdk下可以适用,当我把程序迁移到web项目下的时候总是提示这个方法不可用。是怎么回事那?
The method getSingleResult() is undefined for the type Query
关联的代码提取下rnrn rn 出现的错误rn
The method insert(String) is undefined for the type DBCon
就算在tomcat中有重新更新或者重新部署项目还出现这样的问题解决办法:在eclipse中删了tomcat,重新部署tomcat的环境
The method getDispatcherType() is undefined for the type HttpServletRequest错误解决方法
使用Eclipse Luna版本,jdk1.7和tomcat8.0开发JAVA EE应用。写一个简单的JSP部署后访问报JSP编译错误,具体错误信息如下: The <em>method</em> getDispatcherType() is <em>undefined</em> for the <em>type</em> HttpServletRequest Stacktrace: org.apache.jasper....
对The method createBlob() is undefined for the type Hibernate异常的解决办法
项目中经常用到上传图片,上传后有两种保存方式:一种是以二进制流的形式保存到数据库中,数据库中的字段名定义为image;第二种是将图片保存到服务器上的某一文件夹下 ,然后在数据库里存储一列该图片的保存路径。 对于第一种hibernate4之前的版本的处理方式是这样的,将实体中图片字段定义为Blob类型的,数据库中映射成image类型的,然后往实体中写入的时候如下:FileInputStream
The method is undefined for the type Format
Format format=Format.getCompactFormat(); 今天在写程序的时候出现了The <em>method</em> getCompactFormat() is <em>undefined</em> for the <em>type</em> Format 这个问题,就是说找不到这个方法,我们在写程序的时候经常会参考一些书上或者网上的代码,人家能用为什么自己就出现了这样的问题呢,一般是自己导入的包不匹配导致的,一般来说
项目报错:The method getTextContent() is undefined for the type Node
一、问题描述 在项目中使用了XML解析,如果加入了其他了xfire 等其他xml解析包的话,使用org.w3c.dom.Node下的getTextContent()方法会出现The <em>method</em> getTextContent() is <em>undefined</em> for the <em>type</em> Node 提示 二、解决方法 projectproperties-
The method configure() is undefined for the type Configuration
Configuration config=new Configuration().configure();rn这是代码,为什么引包了还是出现标题的错误rn
The method getActualTypeArguments() is undefined for the type ParameterizedType
public abstract class HibernateDaorn private Class clazz;rn protected HibernateDao() rn ParameterizedType <em>type</em>=(ParameterizedType)getClass().getGenericSuperclass();rn clazz=(Class)<em>type</em>.[color=#FF0000]getActualTypeArguments()[/color][0];rn rn rn红色部分报错 为什么啊?
The method getBytes() is undefined for the type Long
这种错误怎么解决,求大神指导
The constructor StringBuffer(String) is undefined
StringBuffer buf = new StringBuffer("This is a test");rn初始化buf对象,为什么会提示StringBuffer buf = new StringBuffer("This is a test");
打war包时出现The method encodeToString(byte[]) is undefined for the type Base64
在war包中出现错误 解决方法:     这是由于jar包冲突,查看lib文件夹中是否有低版本的commons-codec.jar(这个方法是从1.4开始的)
The method getResources() is undefined for the type
在非activity的独立类(public class readwhatsapp)中调用getResources()时(InputStream is = getResources().openRawResource(R.raw.wa_contacts.db)),出现The <em>method</em> getResources() is <em>undefined</em> for the <em>type</em> 这是因为 getResour
The method getTextContent() is undefined for the type Node解决方法(eclipse)
在使用org.w3c.dom.Node.getTextContent()出现了The <em>method</em> getTextContent() is <em>undefined</em> for the <em>type</em> Node的提示,产生原因在j2ee项目中的xml-apis.jar下的org.w3c.dom干扰了Java的类查找,所以我们只需要把jdk的优先级调整到它之前就可以了。
问题“The method getDispatcherType() is undefined for the type HttpServletRequest”
原来正常运行的项目,加了些功能后,突然遇到了 个错误: 严重: Servlet.service() for servlet [jsp] in context with path [/smsm1] threw exception [Unable to compile class for JSP:  An error occurred at line: [65] in the gene
操作String的几个Method
[code=&quot;java&quot;] public static String join(String[] array, String sep) { if (array == null) { return null; } if (array.length == 0) { return &quot;&quot;; ...
method(String)问题
void go(String s)s="bbb";rn然后执行rnString s="aaa";rngo(s);rnSystem.out.println(s);rn为什么s没被更改?s不是对象引用吗?
PreparedStatement的addBatch()和addBatch(String sql)能一起使用吗?
[code=Java]rn try rn Class.forName("com.mysql.jdbc.Driver");rn Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/test","root","zhou");rn PreparedStatement pstmt = conn.prepareStatement("insert into test values(?)");rn for(int i = 0;i+k);rn rn int[] arr = pstmt.executeBatch();rn for(int m = 0;m
奇怪的问题:The method a() is undefined for the type print
如题:[color=#FF0000]The <em>method</em> a() is <em>undefined</em> for the <em>type</em> print[/color]rn我把print.java放在页面中则正确rn=================test.jsp============rnrnrnrnrnrnrnrnrn============print.java===============rnpackage com.cjlu.tools;rnpublic class printrnrn rn public String a()rn rn return "CHEN";rn rnrnrnrn[color=#339966]--------------------------------------------------------------------rn以下内容为自动编辑的内容,并非楼主的发贴内容,此仅用于显示而已,并无任何其他特殊作用rn楼主【ch_space】截止到2008-08-04 15:03:25的历史汇总数据(不包括此帖):rn发帖的总数量:1 发帖的总分数:20 每贴平均分数:20 rn回帖的总数量:1 得分贴总数量:0 回帖的得分率:0% rn结贴的总数量:1 结贴的总分数:20 rn无满意结贴数:0 无满意结贴分:0 rn未结的帖子数:0 未结的总分数:0 rn结贴的百分比:100.00% 结分的百分比:100.00% rn无满意结贴率:0.00 % 无满意结分率:0.00 % rn敬礼![img=http://p.blog.csdn.net/images/p_blog_csdn_net/java2000_net/381633/o_medal1.gif][/img][/color]rn取消马甲机器人,请点这里:[url=http://www.java2000.net/mycsdn/robotStop.jsp?usern=ch_space][/url]
The method getDataSource(HttpServletRequest) is undefined for the type LoginAction
package com.struts.chaptertwo;rnimport javax.servlet.http.HttpServletRequest;rnimport javax.servlet.http.HttpServletResponse;rnimport org.apache.struts.action.Action;rnimport org.apache.struts.action.ActionForm;rnimport org.apache.struts.action.ActionForward;rnimport org.apache.struts.action.ActionMapping;rnrnimport javax.sql.DataSource;rnimport java.sql.Connection;rnimport java.sql.ResultSet;rnimport java.sql.SQLException;rnimport java.sql.Statement;rnrnpublic class LoginAction extends Actionrn public ActionForward execute(ActionMapping mapping, ActionForm form,rn HttpServletRequest request, HttpServletResponse response) rn rn LoginActionForm loginActionForm=(LoginActionForm)form;rn String username=loginActionForm.getUsername();rn String password=loginActionForm.getPassword();rn rn rn rn DataSource ds=[color=#FF6600]getDataSource[/color](request);rn Connection conn=ds.getConnection();rn Statement stmt=conn.createStatement();rn String sqlStr="select * from loginuser where username='"+username+"' and password='"+password+"'";rn ResultSet rs=stmt.executeQuery(sqlStr);rn Boolean result=false;rn if(rs.next())rn rn result =true;rn rn rn elsern rn result=false;rn rn conn.close();rn rn if(result)rn return mapping.findForward("wellcome");rnrn elsern rn return mapping.findForward("wrong");rn rn rnrn
MySQL 设置、添加主键以及自增问题
1、学习MySQL时我遇到过创建成功后,未对相关表设置主键的问题。现在找到解决方法与大家一起分享。(不分大小写)2、首先对于直接在创建表时设置主键    create table table_name(sno int primary key,sname varchar(15),age int(11));    3、创建表后,将某列 col 或者将某属性设置为主键     alter table t...
MyEclipse 下 the method getTextContent() is undefined for the type Element
在myeclipse下 pagefield = dc.createElement("Field"); pagefield.setAttribute("Name", "glDate"); pagefield.setAttribute("<em>type</em>", "Date"); pagefield.setTextContent(glDate);pag
The method getDispatcherType() is undefined for the type HttpServletRequest 升级到tomcat8
配置项目,从tomcat低版本,放到tomcat8时,正常的项目居然报错了: The <em>method</em> getDispatcherType() is <em>undefined</em> for the <em>type</em> HttpServletRequest 从网上查资料,找可能出现这个问题的因素: 1可能是环境变量,检查了没问题 2有人说jar包冲突 对于servlet-api.jar这个包,原来工
Eclipse常见问题解决 - The method getTextContent() is undefined for the type Node.
现象: 项目报错The <em>method</em> getTextContent() is <em>undefined</em> for the <em>type</em> Node. 原因: 项目中如果加入了xfire等其他xml解析包的话,使用org.w3c.dom.Node下的getTextContent()方法会出现The <em>method</em> getTextContent() is <em>undefined</em> for the <em>type</em> N
The method querySubCategory(int) is undefined for the type GoodsCatedao
该方法存在为什么报The <em>method</em> querySubCategory(int) is <em>undefined</em> for the <em>type</em> GoodsCatedao错误呢?rn具体错误:rn2010-7-7 18:24:22 org.apache.catalina.core.StandardWrapperValve invokern严重: Servlet.service() for servlet default threw exceptionrnjava.lang.Error: Unresolved compilation problems: rn The <em>method</em> querySubCategory(int) is <em>undefined</em> for the <em>type</em> GoodsCatedaorn The <em>method</em> querySubCategory(int) is <em>undefined</em> for the <em>type</em> GoodsCatedaorn The <em>method</em> querySubCategory(int) is <em>undefined</em> for the <em>type</em> GoodsCatedaornrn at kaiqi.goods.actions.GoodsCateAction.searchJLExecute(GoodsCateAction.java:531)rn at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)rn at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)rn at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)rn at java.lang.reflect.Method.invoke(Method.java:585)rn at com.opensymphony.xwork2.DefaultActionInvocation.invokeAction(DefaultActionInvocation.java:404)rn at com.opensymphony.xwork2.DefaultActionInvocation.invokeActionOnly(DefaultActionInvocation.java:267)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:229)rn at com.opensymphony.xwork2.interceptor.DefaultWorkflowInterceptor.doIntercept(DefaultWorkflowInterceptor.java:221)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:150)rn at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept(AnnotationValidationInterceptor.java:48)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:123)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:167)rn at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:86)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:105)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:83)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:207)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:74)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept(ScopedModelDrivenInterceptor.java:127)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at org.apache.struts2.interceptor.ProfilingActivationInterceptor.intercept(ProfilingActivationInterceptor.java:107)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at org.apache.struts2.interceptor.debugging.DebuggingInterceptor.intercept(DebuggingInterceptor.java:206)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:115)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:224)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvocation.java:223)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.java:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:221)rn at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:143)rn at com.opensymphony.xwork2.DefaultActionInvocation$2.doProfiling(DefaultActionInvoc
TName = type string;
我想问一下rn在一个Unit 中声明变量的时候有一种情况:rn<em>type</em>rn TName = <em>type</em> <em>string</em>;rnrnrn这是把TName声明成了一个什么类型呀?是一个字符串类吗?
TYPE与STRING转换问题
STRSUB:='#M8';rnByte(strSub[3]) ;rn怎么showmessage 出来rn
“UTF8String = type string;” 什么意思??
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Cannot invoke split(String) on the array type String[]
[code=Java]rn String[] regAddr = "165.119.96.123", "165.119.96.132" ;rn String[] viewAddr = "165.119.96.141", "165.119.96.142", "165.119.96.143", "165.119.96.144", "165.119.96.145" ;rn[/code]rnrn[code=Java] < 4; i++) rn if (!remoteAddrSplit[i].equals(regAddrSplit[i])) rn isWrite = false;rn break;rn rn rn rn if (isWrite) rn %>[/code]rn红色部分 提示错误Cannot invoke split(String) on the array <em>type</em> String[] 怎么改呢 谢谢
The method sqlit(String) is undefined for the type String
-
解决问题:Unable to compile class for JSP
解决问题:Unable to compile class for JSP
开发中碰到的问题:The method getSystemService(String) is undefined for the type CourseFragment
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The method executeUpdate(String) is undefined for the type DataBase
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The method prevous() is undefined for the type ResultSet 错误信息
------------------------出现这样的 错误信息----------------------------------45: %> rn46: rn47: rn-------------------------------m * n 的代码--------------------------------------rn源程序rn rn rn rn rn rn rn
rs.close();报错The method close() is undefined for the type Resultset?
跟着视频做个很简单的数据库连接和关闭,结果出现这个错误,网上找了一堆没跟我一样的。。。rn错误提示rnThe <em>method</em> close() is <em>undefined</em> for the <em>type</em> Resultsetrnrn代码如下rnrn```rnpackage com.zkz.magSystem.com;rnrnimport java.sql.Connection;rnimport java.sql.DriverManager;rnimport java.sql.PreparedStatement;rnimport java.sql.SQLException;rnrnimport com.mysql.cj.protocol.Resultset;rnrnpublic class BaseDAO rn public static Connection getConnection() throws Exceptionrn rn Class.forName("com.mysql.jdbc.Driver");rn return DriverManager.getConnection("jdbc:mysql://localhost:3306/exam","root","12345");rn rn rn public static void close(Connection conn,PreparedStatement ps,Resultset rs)rn try rn if(rs != null) rs.close();rn if(ps != null) ps.close();rn if(conn !=null && !conn.isClosed()) conn.close();rn catch (SQLException e) rn // TODO Auto-generated catch blockrn e.printStackTrace();rn rn rnrn```
The method screenshot(int, int) is undefined for the type Surface
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有关The operator % is undefined for the argument type(s) int, String 的问题
一个javax.speech的小程序:rn[code=java]rnimport javax.speech.Central;rnimport javax.speech.synthesis.*;rnrnpublic class TrySpeech rnrn public static void main(String[] args) rn Synthesizer synthesizer = Central.createSynthesizer(null);rn synthesizer.allocate();rn try rn synthesizer.speak("Hello I am a computer", null);rn synthesizer.speak("Hello I am a computer", null);rn synthesizer.speak("Hello I am a computer", null); //在这行报错rn catch (Exception e) rn e.printStackTrace();rn rnrn rnrnrn[/code]rn在eclipse中敲完代码后报错:The operator % is <em>undefined</em> for the argument <em>type</em>(s) int, String rn查过很多资料,类似错误案例很多,但与我这个代码的情况都不相同,不知道如何解决,求大神解惑rnrn自己尝试修改过,如果改成:rn[code=java]rnsynthesizer.speak("Hello I am a computer", null); //在这行报错rn[/code]rn则报错为:rnThe operator + is <em>undefined</em> for the argument <em>type</em>(s) String
谁在execute方法中碰到过The method findForward(String) is undefined for the type ActionMapping错误,是怎么解决的
rt;rn方法代码如下rnpublic ActionForward execute(rn ActionMapping mapping,rn ActionForm form,rn HttpServletRequest request,rn HttpServletResponse response)rn throws Exception rn LoginForm loginForm = (LoginForm) form;rn return mapping.findForward("success");rnrn rn谢谢
记com.google.gson.JsonSyntaxException: java.lang.NumberFormatException:....
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常见的异常问题以及解决办法
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求救哇。This method must return a result of type String
import java.util.Scanner;rnpublic class LeapYearrn public static void main(String[] args)rn System.out.println("Please enter a year greater than 1582.");rn Scanner scan=new Scanner(System.in);rn int year=scan.nextInt();rn int month=2,day=29;rn if(year>=1582)rn if(isLeapYear(year))rn System.out.println(year+" is leap year");rn Zellers(year,month,day);rn rn elsern System.out.println(year+" is not leap year");rn rn rn elsern System.out.println("The year that entered is out of range.");rn rn rn public static boolean isLeapYear(int year)rn if (year%4==0 && year%100!=0)rn return true;rn rn elsern if (year%400==0)rn return true;rn rn return false;rn rn public static void Zellers(int year,int month,int day)rn int LeapFactor,DayNumber,StartMonth,StartYear;rn StartMonth=0;rn StartYear=year-1;rn LeapFactor =(StartYear/4)-(StartYear/100)+(StartYear/400);rn DayNumber=((365*year+31*(month-1)+day+LeapFactor-StartMonth)-1);rn System.out.println(DisplayDay(DayNumber)+ " was Feb 29th in "+year);rn rn public static String DisplayDay(int DayNumber)rn switch (DayNumber)rn rn case 0:rn return "Sunday";rn case 1:rn return "Monday";rn case 2:rn return "Tuesday";rn case 3:rn return "Wednesday";rn case 4:rn return "Thursday";rn case 5:rn return "Friday";rn case 6:rn return "Saturday";rn rn rnrnrn新手刚刚学习java
Error:This method must return a result of type String?
路过的高手顺便指点下我啊 rn先行谢过rn求解Error:This <em>method</em> must return a result of <em>type</em> String [code=Java]rnpublic class WaitNotifyDemo rnrn /**rn * @param argsrn */rn rn public static void main(String[] args) rn // TODO Auto-generated <em>method</em> stubrn MessageBoard m = new MessageBoard();//构造共享的信息板类对象rn Reader readfrom_m = new Reader(m);rn Writer writeto_m = new Writer(m);rn readfrom_m.start();rn writeto_m.start();rn rnrnrnclass MessageBoard //共享的信息板rn private String message;rn private boolean ready = false;rn public synchronized String read() //ERRORrn while(ready == false)rn tryrn wait();rn catch(InterruptedException e)rn ready = false;rn notify();rn return message;rn rn rn rn public synchronized void write(String s) rn while(ready == true)rn tryrn wait();rn catch(InterruptedException e)rn message = s;rn ready = true;rn notify();rn rn rn rnrnclass Reader extends Thread //定义读线程类rn private MessageBoard mBoard;rn public Reader(MessageBoard m)rn mBoard = m;rn rn public void run()rn String s = "";rn boolean reading = true;rn while(reading)rn s = mBoard.read();rn System.out.println("Reader read:"+s);rn if(s.equals("logoff"))rn reading = false;rn rn System.out.println("Finished: 10 seconds...");rn tryrn sleep(10000);rn catch(InterruptedException e)rn rnrnclass Writer extends Thread // 定义写线程类rn private MessageBoard mBoard;rn private String messages[] = rn "Monday :--------","....","Sunday : --------"rn ;rn public Writer(MessageBoard m)rn mBoard = m;rn rn rn public void run()rn for(int i=0;i
paper about climbing string method
This is a paper about the <em>string</em> <em>method</em>
type(null) into type(String)"!!!!!!!!!!!!!">"Could not convert Variant of type(null) into type(String)"!!!!!!!!!!!!!
我用delphi6开发数据库的时候rn先用TADOConnection建立了一个连接,用的是ODBCrn然后用TADOTable建立了一个表,当我把Active属性设置为true的时候,运行程序,提示错误信息"Could not convert Variant of <em>type</em>(null) into <em>type</em>(String)",我已经将delphi6打了补丁sp2rn开发环境是windows2000+Sp2,sql2000rn请大家帮忙啊!!!!!!!!!!!!
could not convert variant of type(string) into type (date)
DBGrid中的记录放到checklistbox中 可是总是报错:could not convert variant of <em>type</em>(<em>string</em>) into <em>type</em> (date)rndbgrid中的记录有个字段是日期的:2007-12-12 rnprocedure TForm1.Button1Click(Sender: TObject);rnbeginrn while not OraQuery1.Eof dorn beginrn checklistbox1.Items.add(''));rn oraquery1.Next;rn end;rnend;rn其中oraquery1.Fields[4]是日期型 我试了:+strtodate(datetostr(oraquery1.Fields[4].Value+'>')rn datetostr(datetostr(oraquery1.Fields[4].Value+'>')rn都不行 rn 高手指点啊!!!我还在加班中 在线等!!rn
初学Java所犯的问题
eclipse报错the <em>method</em> println(String) is <em>undefined</em> for the <em>type</em> PrintStream 解决方案:System.out.println("Hello world"); ......我把println写成了printIn..   应该是小写的l,而不是大写的i....
The method getTabHost() is undefined问题解决
getTabHost() is a <em>method</em> of TabActivity not Activity. You'll need to extend that instead of Activity for the <em>method</em> to be defined in your object. MainActivity 继承自Activity ,当使用 getTabHost(),会提示get
Mybatis中,具有返回值的方法,执行报错。attempted to return null from a method with a primitive return type (boolean)
报错:Mapper <em>method</em> ‘xxxx.addEmployee attempted to return null from a <em>method</em> with a primitive return <em>type</em> (boolean).’ 出错原因及解决方法:在Mybatis中,返回值是包装类,因此在对应的接口中,需要将返回值修改为包装类即可。 ...
The method getDispatcherType() is undefined for the type HttpServletRequest解决办法
我和小伙伴一起做一个项目,我从他的github上clone代码到自己机器运行出现就会出现这个错误,但在他的机子上却是好好地.后来检查出来是因为tomcat版本不一致,我用的8.0.27,他是8.0.23 装了8.0.27的tomcat之后就好了.
Query.setParameter(String name, Object val, Type type)
想利用命名参数进行参数,可是不知道第三个参数 Type如何设置。rn[code=java]rnTeam team=(Team) session.get(Team.class,"402881e64b61c657014b61c658e4000b");rn rn Query query=session.createQuery("from Student s where s.team =:team and s.age>24");rn rn query.setParameter("team",team,);rnrn[/code]rnrn就是想问,有没有什么方法能将Team类的 <em>type</em>得到,并赋值进去?
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