java的一个异常问题 [问题点数:20分]

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<em>java</em>x.servlet.ServletException: Unable to instantiate Action, testAction, defined for 'testManager' in namespace '/test'Error creating bean with name 'testAction' defined in ServletContext resource [/WEB-INF/ applicationContext_test.xml]: Cannot resolve reference to bean 'testForm' while setting bean property 'form'; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [test.form.TestForm] for bean with name 'testForm' defined in ServletContext resource [/WEB-INF/ applicationContext_test.xml]; nested exception is <em>java</em>.lang.ClassNotFoundException: test.form.TestForm - action - file:/D:/Workspace/.metadata/.me_tcat7/me-webapps/mdm/WEB-INF/classes/test_struts.xml:21:49rn at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.<em>java</em>:515)rn at org.apache.struts2.dispatcher.FilterDispatcher.doFilter(FilterDispatcher.<em>java</em>:422)rn at com.common.SysFilterDispatcher.doFilter(SysFilterDispatcher.<em>java</em>:95)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.<em>java</em>:243)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.<em>java</em>:210)rn at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.<em>java</em>:198)rn at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.<em>java</em>:76)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.<em>java</em>:243)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.<em>java</em>:210)rn at com.common.util.CodeTransferFilter.doFilter(CodeTransferFilter.<em>java</em>:60)rn at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.<em>java</em>:243)rn at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.<em>java</em>:210)rn at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.<em>java</em>:222)rn at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.<em>java</em>:123)rn at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.<em>java</em>:472)rn at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.<em>java</em>:168)rn at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.<em>java</em>:99)rn at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.<em>java</em>:118)rn at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.<em>java</em>:407)rn at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.<em>java</em>:1002)rn at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.<em>java</em>:585)rn at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.<em>java</em>:312)rn at <em>java</em>.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.<em>java</em>:1145)rn at <em>java</em>.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.<em>java</em>:615)rn at <em>java</em>.lang.Thread.run(Thread.<em>java</em>:744)rnCaused by: Unable to instantiate Action, testAction, defined for 'testManager' in namespace '/test'Error creating bean with name 'testAction' defined in ServletContext resource [/WEB-INF/ applicationContext_test.xml]: Cannot resolve reference to bean 'testForm' while setting bean property 'form'; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [test.form.TestForm] for bean with name 'testForm' defined in ServletContext resource [/WEB-INF/ applicationContext_test.xml]; nested exception is <em>java</em>.lang.ClassNotFoundException: test.form.TestForm - action - file:/D:/Workspace/.metadata/.me_tcat7/me-webapps/mdm/WEB-INF/classes/test_struts.xml:21:49rn at com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.<em>java</em>:294)rn at com.opensymphony.xwork2.DefaultActionInvocation.init(DefaultActionInvocation.<em>java</em>:365)rn at com.opensymphony.xwork2.DefaultActionInvocation.access$000(DefaultActionInvocation.<em>java</em>:38)rn at com.opensymphony.xwork2.DefaultActionInvocation$1.doProfiling(DefaultActionInvocation.<em>java</em>:83)rn at com.opensymphony.xwork2.util.profiling.UtilTimerStack.profile(UtilTimerStack.<em>java</em>:455)rn at com.opensymphony.xwork2.DefaultActionInvocation.(DefaultActionInvocation.<em>java</em>:74)rn at com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.<em>java</em>:189)rn at org.apache.struts2.impl.StrutsActionProxyFactory.createActionProxy(StrutsActionProxyFactory.<em>java</em>:41)rn at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.<em>java</em>:494)rn ... 24 morernCaused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testAction' defined in ServletContext resource [/WEB-INF/ applicationContext_test.xml]: Cannot resolve reference to bean 'testForm' while setting bean property 'form'; nested exception is org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [test.form.TestForm] for bean with name 'testForm' defined in ServletContext resource [/WEB-INF/ applicationContext_test.xml]; nested exception is <em>java</em>.lang.ClassNotFoundException: test.form.TestFormrn at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.<em>java</em>:315)rn at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.<em>java</em>:106)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.<em>java</em>:1243)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.<em>java</em>:1011)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.<em>java</em>:475)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.<em>java</em>:412)rn at <em>java</em>.security.AccessController.doPrivileged(Native Method)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.<em>java</em>:383)rn at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.<em>java</em>:295)rn at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.<em>java</em>:175)rn at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.<em>java</em>:868)rn at com.opensymphony.xwork2.spring.SpringObjectFactory.buildBean(SpringObjectFactory.<em>java</em>:126)rn at com.opensymphony.xwork2.ObjectFactory.buildBean(ObjectFactory.<em>java</em>:143)rn at com.opensymphony.xwork2.ObjectFactory.buildAction(ObjectFactory.<em>java</em>:113)rn at com.opensymphony.xwork2.DefaultActionInvocation.createAction(DefaultActionInvocation.<em>java</em>:275)rn ... 32 morernCaused by: org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [test.form.TestForm] for bean with name 'testForm' defined in ServletContext resource [/WEB-INF/ applicationContext_test.xml]; nested exception is <em>java</em>.lang.ClassNotFoundException: test.form.TestFormrn at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.<em>java</em>:1161)rn at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.<em>java</em>:1125)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$1.run(AbstractAutowireCapableBeanFactory.<em>java</em>:389)rn at <em>java</em>.security.AccessController.doPrivileged(Native Method)rn at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.<em>java</em>:383)rn at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.<em>java</em>:295)rn at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.<em>java</em>:175)rn at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.<em>java</em>:309)rn ... 46 morernCaused by: <em>java</em>.lang.ClassNotFoundException: test.form.TestFormrn at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.<em>java</em>:1714)rn at orgrn.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.<em>java</em>:1559)rn at org.springframework.util.ClassUtils.forName(ClassUtils.<em>java</em>:255)rn at org.springframework.beans.factory.support.AbstractBeanDefinition.resolveBeanClass(AbstractBeanDefinition.<em>java</em>:391)rn at org.springframework.beans.factory.support.AbstractBeanFactory.resolveBeanClass(AbstractBeanFactory.<em>java</em>:1158)rn ... 53 more
java中的异常问题
[code=<em>java</em>]public class Excepts rn public static void func1() throws Throwablern rn throw new Exception("from func1");rn rn public static void main(String[] Str) throws Throwablern rn tryrn rn func1();rn rn catch(Exception e)rn //catch (Throwable e)rn rn System.out.println("This is the main catch");rn rn rnrn[/code]rn现在的问题是当我把main函数的异常声明throws Throwable去掉后,就会出现错误,但是加上throws Throwable就没问题了,不知道这是为什么?rn函数体中抛出的异常跟函数中声明的异常之间有什么关系,要满足什么样的原则?
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JAVA中的异常问题
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请教: java抛出异常问题
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[img=https://img-bbs.csdn.net/upload/201904/20/1555753566_737950.png][/img]rn[img=https://img-bbs.csdn.net/upload/201904/20/1555753578_244919.png][/img]rn在throw new Exception()里设置了“除数不能为0”,为什么输出的是/by zero?请问怎样设置能获取到throw new Exception()里面的信息。
求高手点拨一个Java的“异常问题”...
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java调用ocx异常问题
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关于 java异常问题?
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哪位高手能告诉我rn<em>java</em>.sql.SQLException: No ResultSet was producedrn这个异常是什么意思?
跪求一个异常问题
我用的是Tomcat和MSSQL,连接数据库是用的普通接连(驱动)rn当我的主页加载时出现了N多的这个异常 rn<em>java</em>.net.SocketExceptionrnat <em>java</em>.net.SocketOutputStream.socketWrite0(Native Method)rnat <em>java</em>.net.SocketOutputStream.socketWrite(SocketOutputStream.<em>java</em>:92) rnat <em>java</em>.net.SocketOutputStream.write(SocketOutputStream.<em>java</em>:136) rnat org.apache.catalina.connector.ResponseBase.flushBuffer(ResponseBase.<em>java</em>:674) rnat org.apache.catalina.connector.HttpResponseBase.flushBuffer(HttpResponseBase.<em>java</em>:764) rnat org.apache.catalina.connector.ResponseBase.write(ResponseBase.<em>java</em>:647) rnat org.apache.catalina.connector.ResponseStream.write(ResponseStream.<em>java</em>:312) rnat org.apache.catalina.connector.http.HttpResponseStream.write(HttpResponseStream.<em>java</em>:189) rnat org.apache.catalina.servlets.DefaultServlet.copyRange(DefaultServlet.<em>java</em>:1921) rnat org.apache.catalina.servlets.DefaultServlet.copy(DefaultServlet.<em>java</em>:1670) rnat org.apache.catalina.servlets.DefaultServlet.serveResource(DefaultServlet.<em>java</em>:1215) rnat org.apache.catalina.servlets.DefaultServlet.doGet(DefaultServlet.<em>java</em>:525) rnat <em>java</em>x.servlet.http.HttpServlet.service(HttpServlet.<em>java</em>:740) rnat <em>java</em>x.servlet.http.HttpServlet.service(HttpServlet.<em>java</em>:853) rnat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.<em>java</em>:247) rnat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.<em>java</em>:193) rnat org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.<em>java</em>:243) rnat org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.<em>java</em>:566) rnat org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.<em>java</em>:472) rnat org.apache.catalina.core.ContainerBase.invoke(ContainerBase.<em>java</em>:943) rnat org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.<em>java</em>:190) rnat org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.<em>java</em>:566) rnat org.apache.catalina.valves.CertificatesValve.invoke(CertificatesValve.<em>java</em>:246) rnat org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.<em>java</em>:564) rnat org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.<em>java</em>:472) rnat org.apache.catalina.core.ContainerBase.invoke(ContainerBase.<em>java</em>:943) rnat org.apache.catalina.core.StandardContext.invoke(StandardContext.<em>java</em>:2347) rnat org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.<em>java</em>:180) rnat org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.<em>java</em>:566) rnat org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDispatcherValve.<em>java</em>:170) rnat org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.<em>java</em>:564) rnat org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.<em>java</em>:170) rnat org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.<em>java</em>:564) rnat org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.<em>java</em>:472) rnat org.apache.catalina.core.ContainerBase.invoke(ContainerBase.<em>java</em>:943) rnat org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.<em>java</em>:174) rnat org.apache.catalina.core.StandardPipeline.invokeNext(StandardPipeline.<em>java</em>:566) rnat org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.<em>java</em>:472) rnat org.apache.catalina.core.ContainerBase.invoke(ContainerBase.<em>java</em>:943) rnat org.apache.catalina.connector.http.HttpProcessor.process(HttpProcessor.<em>java</em>:1027) rnat org.apache.catalina.connector.http.HttpProcessor.run(HttpProcessor.<em>java</em>:1125) rnat <em>java</em>.lang.Thread.run(Thread.<em>java</em>:534)rnrn这个是什么异常,怎么会出现socket?rn怎么解决这个问题?
关于webservice的一个异常问题
AxisFaultrn faultCode: http://schemas.xmlsoap.org/soap/envelope/Server.userExceptionrn faultSubcode: rn faultString: org.xml.sax.SAXException: Bad envelope tag: definitionsrn faultActor: rn faultNode: rn faultDetail: rn http://xml.apache.org/axis/stackTrace:org.xml.sax.SAXException: Bad envelope tag: definitionsrn有谁知道这个错吗?如何解决?谢谢1!rn
关于一个简单的异常问题?
void func()rnrn tryrn rn throw "Hello";rn rn catch(const char *s) rn rn cout << "catch exception, message = " << s << endl;rn rnrn为什么在catch里一定要加const, 不加就捕获不到
一个关于Remoting的异常问题
最近开发Remoting,遇到<em>一个</em>问题,提示如下:rnrn安全性异常 rn说明: 应用程序试图执行安全策略不允许的操作。要授予此应用程序所需的权限,请与系统管理员联系,或在配置文件中更改该应用程序的信任级别。 rnrn异常详细信息: System.Security.SecurityException: 请求失败。rnrn源错误: rnrn执行当前 Web 请求期间生成了未处理的异常。可以使用下面的异常堆栈跟踪信息确定有关异常原因和发生位置的信息。 rnrn堆栈跟踪: rnrn[SecurityException: 请求失败。]rnrn#########################################rn死活找不到问题了rn我用的服务器端激活,Singleton模式rn服务器端的配置文件如下:rnrnrn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rnrnrnrn客户端的配置文件如下:rnrnrn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rnrnrn所有传送的类都已经序列化了,各位高手大虾们有什么建议不,不胜感激呀rnrn rn
一个奇怪的异常问题
[img=http://www.imagecrazy.net/uploads/5c2ff45d43.jpg][/img]rnrn[code=Java]public String Jpstr(String str)rn Pattern p = Pattern.compile("&#(.*?);");rn Matcher m = p.matcher(str);rn while (m.find()) rn String s = m.group(1);rn Pattern p1 = Pattern.compile("\\d");rn Matcher m1 = p1.matcher(s);rn String num = "";rn while(m1.find())rn num += m1.group();rn rn int b = Integer.valueOf(num.trim()).intValue(); // 179行rn char d = (char) b;rn str = str.replace(m.group(), String.valueOf(d));rn rn return str;rn [/code]
InterDev的一个异常问题,安装..
安装InterDev后,不论打开asp页,还是html页,没有了编辑选项、源代码选项和预览选项,显示的只有源码,而且源码中没有颜色,没有的自动提示功能。完全象是<em>一个</em>记事本,但上工程管理还好使。rn我重装了N遍(卸->装,删->装),没有效果。但其它visual studio 匀正常。rn不知道你是否遇到过这种清况,如果有过,且您已经解决了这个毛病,请您教教 我,谢谢。rn系统:window 2000 server.pack2
请教一个adoquery下的异常问题
以下语句:tryrn query1.Edit;rn query1.fields[0].AsString:=editdhhm.Text;rn query1.fields[1].AsString:=editdw.Text;rn query1.fields[2].AsString:=editdz.Text;rn query1.Post;rn exceptrn showmessage('error');rn end;rn其中字段一是主索引,当提交的值有重复时将产生错误,但程序中并未执行到showmessage(),而是出现了另<em>一个</em>系统对话框:raised an exception......,rn请问如何不让系统对话框出现而是执行showmessage('error')?
请教一个jsp的异常问题:
org.apache.jasper.JasperExceptionrn org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.<em>java</em>:358)rn org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.<em>java</em>:301)rn org.apache.jasper.servlet.JspServlet.service(JspServlet.<em>java</em>:248)rn <em>java</em>x.servlet.http.HttpServlet.service(HttpServlet.<em>java</em>:856)rn org.apache.jasper.runtime.JspRuntimeLibrary.include(JspRuntimeLibrary.<em>java</em>:1002)rn org.apache.jsp.hzltest_jsp._jspService(hzltest_jsp.<em>java</em>:67)rn其中,hzltest_jsp.<em>java</em>:67为该句,应该是include编译出来的语句:rnorg.apache.jasper.runtime.JspRuntimeLibrary.include(request, response, "include/top_t.jsp", out, false);rn请问,这可能是什么问题rn
一个删除记录的异常问题
我是用ADO连接Sybase数据库rn有个操作是查询数据库某表中的记录,然后删除查询到的记录rn部分代码如下:rn[code=SQL]RstSnd.CreateInstance( __uuidof(Recordset) ); ////_RecordsetPtr RstSnd rnRstSnd->putref_ActiveConnection(m_ConnSvr); rn rnTRACE1("%s\n", strSql);//strSql为<em>一个</em>查询语句rnRstSnd->Open(vValue, vNull, adOpenDynamic, adLockOptimistic, adCmdText);rn。。。。。。。。。。。。。rnrnRstSnd->Delete(adAffectCurrent); [/code]rnrn调试运行到Delete的时候,发生异常,捕获显示:当前记录集不支持更新。这可能是提供程序的限制,也可能是选定锁定类型的限制。 rnrn想问下,为什么会出现这种错误呢?rn望高人指点,谢谢了rnrnrn
请问一个关于数据库的异常问题
先看下面的程序代码:rnDataModule_DATA1.ADOCommand_SJ.CommandText:='UPDATE 或者 INSERT等SQL语句';rntryrn DataModule_DATA1.ADOCommand_SJ.Execute;rnexceptrn MessageBox(Self.Handle,'处理失败,请检查!','错误',MB_OK or MB_ICONWARNING);rn Exit;rnend;rnMessageBox(Self.Handle,'处理成功!','提示',MB_OK or MB_ICONINFORMATION);rnrn请问上面是不是会出现这种情况,SQL语句已经执行,但是提示处理失败,或者是提示成功,但是SQL语句没有执行成功。是不是还有其他一些异常会影响上面的判断!
一个数据库的异常问题
急!急!急!急!请高手指点一下吧rn<em>java</em>.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC]Error rnrnreadingrndata from static cursor cache.rn提示的是什么意思呀?
CAS单点登录一个异常问题
异常:rn[ERROR,Cas20ServiceTicketValidator,http-8080-1] <em>java</em>x.net.ssl.SSLHandshakeException: <em>java</em>.security.cert.CertificateException: No subject alternative names presentrn<em>java</em>x.net.ssl.SSLHandshakeException: <em>java</em>.security.cert.CertificateException: No subject alternative names presentrn at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Alerts.<em>java</em>:174)rn at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(SSLSocketImpl.<em>java</em>:1591)rn at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.<em>java</em>:187)rn at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.<em>java</em>:181)rn at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.<em>java</em>:975)rn at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.<em>java</em>:123)rn at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.<em>java</em>:516)rn at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.<em>java</em>:454)rn at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.<em>java</em>:884)rn at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.<em>java</em>:1096)rn at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.<em>java</em>:1123)rn at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.<em>java</em>:1107)rn at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.<em>java</em>:405)rn at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.<em>java</em>:166)rn at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.<em>java</em>:977)rn at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.<em>java</em>:234)rn at org.jasig.cas.client.validation.AbstractCasProtocolUrlBasedTicketValidator.retrieveResponseFromServer(AbstractCasProtocolUrlBasedTicketValidator.<em>java</em>:35)rn at org.jasig.cas.client.validation.AbstractUrlBasedTicketValidator.validate(AbstractUrlBasedTicketValidator.<em>java</em>:178)rn at org.springframework.security.providers.cas.CasAuthenticationProvider.authenticateNow(CasAuthenticationProvider.<em>java</em>:145)rn at org.springframework.security.providers.cas.CasAuthenticationProvider.authenticate(CasAuthenticationProvider.<em>java</em>:131)rn at org.springframework.security.providers.ProviderManager.doAuthentication(ProviderManager.<em>java</em>:188)rn at org.springframework.security.AbstractAuthenticationManager.authenticate(AbstractAuthenticationManager.<em>java</em>:46)rn at org.springframework.security.ui.cas.CasProcessingFilter.attemptAuthentication(CasProcessingFilter.<em>java</em>:94)rn at org.springframework.security.ui.AbstractProcessingFilter.doFilterHttp(AbstractProcessingFilter.<em>java</em>:258)rn at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.<em>java</em>:53)rn at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.<em>java</em>:390)rn at org.springframework.security.ui.logout.LogoutFilter.doFilterHttp(LogoutFilter.<em>java</em>:89)rn at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.<em>java</em>:53)rn at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.<em>java</em>:390)rn at org.springframework.security.context.HttpSessionContextIntegrationFilter.doFilterHttp(HttpSessionContextIntegrationFilter.<em>java</em>:235)rn at org.springframework.security.ui.SpringSecurityFilter.doFilter(SpringSecurityFilter.<em>java</em>:53)rn at org.springframework.security.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.<em>java</em>:390)rnrn在服务器器上执行rnkeytool -genkey -alias tomcat-server -keyalg RSA -keypass changeit -storepass changeit -validity 3600 rnrn用户名输入为:202.104.186.67,其他都为空rn在root根目录下生成.keystore的文件rn在服务器的tomcat下配置8443端口:rnrn rnrn部署cas到服务器的tomcat下,测试https:202.104.186.67:8443/cas正常显示登录页面rnrn在服务器上执行keytool -export -file server.crt -alias tomcat这个命令,生成server.crt文件rnrnrnrn把server.crt 文件放在客服端的%JAVA_HOME% /jre/lib/sercurity下rn在这个目录下运行keytool -import -keystore cacerts -file server.crt -alias tomcat,输入密码changeit,导入到cacerts文件。rnrnrn以上是配置全过程。rnrn客服端security系统配置如下:rnrnrnrn rn rn rnrn rn rn rn rn rn rn rn rn rn rn rn rn rn rn rnrn rn rn rn rnrn rn rn rn rnrn rn rn rn rn rn rn rn rn rn rn rnrn rn rn rn rnrn rn rn rn rn rn rn rnrn rn rn rn rn rn rnrnrn在本地访问localhost:8080/s-ori/时,直接到https://202.104.186.67:8443/cas/login,输入用户名和密码,本地抛<em>java</em>x.net.ssl.SSLHandshakeException: <em>java</em>.security.cert.CertificateException: No subject alternative names present这个异常rnrn大体情况就是这样的,我在网上看到有<em>一个</em>地方说是因为服务器输入用户名和使用的不一致造成的,我感觉是使用返回那个地址的问题,但是还是找不到原因rnrn rn rn rn rnrn返回地址http://localhost:8080/s-ori/j_spring_cas_security_checkrn
求解。一个空指针异常问题
package maze;rnrn//利用栈 解决迷宫问题rnrnpublic class MyMaze rn public static int mg[][]=1,1,1,1,1,1,//地图迷宫,其四周是为1的外框rn 1,0,0,0,1,1,rn 1,0,1,0,0,1,rn 1,0,1,0,1,1,rn 1,1,0,0,0,1,rn 1,1,1,1,1,1;rn public static Point[] stack=new Point[1000];//栈rn public static int top=-1;//栈顶指针rn// public static int path[];//保存最短路径的数组rn// public static int minLen;//最短路径长度。rn rn public static int mgPath(int xi,int yi,int xe,int ye)//探索路径为:(xi,yi)->(xe,ye)rn int i=0,j=0,di=-1,find=0;rn top++;rn stack[top].i=xi;//??????????????????????rn stack[top].j=yi;rn stack[top].di=-1;//初始结点进栈rn mg[1][1]=-1;rn while(top>-1)//栈不为空时循环rn i=stack[top].i;j=stack[top].j;di=stack[top].di;//取栈顶方块rn if(i==xe&&j==ye)//找到了出口,输出路径rn System.out.println("迷宫路径如下:");rn for(int k=0;k<4&&find==0)//找(i,j)方块下<em>一个</em>可走方块rn di++;rn switch(di)//方向规定按顺时针方向来探索rn case 0: i=stack[top].i-1;j=stack[top].j;break;rn case 1: i=stack[top].i;j=stack[top].j+1;break;rn case 2: i=stack[top].i+1;j=stack[top].j;break;rn case 3: i=stack[top].i;j=stack[top].j-1;break;rn rn if(mg[i][j]==0)rn find=1;//找到下<em>一个</em>可走相邻方块rn rn if(find==1)//找到了<em>一个</em>可走的相邻方块rn stack[top].di=di;//修改原栈顶元素的di值rn top++;rn stack[top].i=i;stack[top].j=j;stack[top].di=-1;rn mg[i][j]=-1;//避免重复走到该方块,将其置为-1rn else//没有相邻方块可走,则退栈。rn mg[stack[top].i][stack[top].j]=0;//让该位置变为其他路径可走方块。rn top--;//将该方块退栈rn rn rn rn return 0;rn rn private class Point//点的位置及方位rn int i;rn int j;//i,j为方块的行号,列号。rn int di;//下一步可走相邻方位的方位号。rn rn rn public static void main(String[] args) rn MyMaze.mgPath(1, 1, 4, 4);rn rnrnrn注:在标注???的地方出现空指针异常。这个空指针异常应该与我的算法没关系,可能是我的某个基础知识没能理解造成的,请明白人指点一下。麻烦您了
求解:一个简单的异常问题!!!
[color=#FF0000]如果发生异常,想执行catch中的代码,但是不灵,请问我应该如何做,或是结构本身就有问题?那应该怎样去构思?谢谢!rn程序代码如下(变红的代码就是程序没有执行的代码):[/color]rnrnpublic partial class ShowResult : System.Web.UI.Pagernrn protected void Page_Load(object sender, EventArgs e)rn rn if (!Page.IsPostBack)rn rn ViewState["order"] = "ASC";rn ViewState["SortItem"] = "contactName";rn this.bind();rn Label1.Visible = false;rn rnrn btnClose.Attributes.Add("onclick", "window.close()");rn if (GridView1.Rows.Count ;rn this.bind();rn rn rn
一个二维数组,空指针异常问题
![图片说明](https://img-ask.csdn.net/upload/201606/18/1466239385_520858.jpg)
一个很简单的异常问题
问题是,如果何在程序当中获取异常号或异常信息。rn比如,我在联接数据库时,数据库联接失败,有可以是网络不通,也有可能是用户密码不正确,还有可能是用户设置有问题。rn(在线等待)
请教一个C++异常问题
以下程序,如何让它产生异常后继续运行,现在只能输出 -5 -4 -3 -2 -1,后面的1 2 3 4如何让其接着输出?rn[code=C/C++]int main()rn int i = -5;rn tryrn while(i < 5)rn if(i++ == 0)rn throw 1010;rn elsern printf("%d ",i);rn rn catch(int y)rn printf("\nCatch exception code: %d\n",y);rn rnrn return 0;rn[/code]
解决了一个异常问题
出现<em>一个</em>异常: <em>java</em>.io.WriteAbortedException: writing aborted; <em>java</em>.io.NotSerializableException: com.abc.beans.AppBean 原因:AppBean类没有实现序列化   解决方法: 1。AppBean类实现implements Serializable接口; 2。在AppBean类中加入import j...
一个异常问题(登陆cookie)
客户那边是虚拟机,web登录是用cookie做的,现在出现了<em>一个</em><em>异常问题</em>,客户端有时候出现无法登陆,检测到cookie是不存在的,重新登陆无反应。但是在服务器内登陆却是正常。这个异常要重启服务器才能恢复正常。rn搞不懂什么异常?????????rnrn登陆代码rn[code=csharp]rnstring username = Request["username"].ToString();rnstring password = Request["password"].ToString();rnrn//验证数据库用户表rnUserModel user = DllFactory.getTrainDll.getUser(username, password);rnrnif (user != null)//通过rnrn HttpCookie aspCookies = new HttpCookie("aspusername");rn HttpCookie aspCookiesPwd = new HttpCookie("password");rn HttpCookie aspCookiesuid = new HttpCookie("uid");rn HttpCookie aspCookiesPower = new HttpCookie("spower");//T代表教师,U代表学生,S代表管理员rn HttpCookie aspCookiesUserID = new HttpCookie("aspuserId");rnrn aspCookies.Value = Server.UrlEncode(user.UserName.ToString());rn aspCookiesPwd.Value = user.PassWord;rn aspCookiesuid.Value = user.Uid.ToString();rn aspCookiesPower.Value = user.Spower.ToString();rn aspCookiesUserID.Value = user.Uid2;rnrn aspCookies.Expires = DateTime.Now.AddDays(3);rn aspCookiesPwd.Expires = DateTime.Now.AddDays(3);rn aspCookiesuid.Expires = DateTime.Now.AddDays(3);rn aspCookiesPower.Expires = DateTime.Now.AddDays(3);rn aspCookiesUserID.Expires = DateTime.Now.AddDays(3);rnrn HttpContext.Current.Response.Cookies.Add(aspCookies);rn HttpContext.Current.Response.Cookies.Add(aspCookiesuid);rn HttpContext.Current.Response.Cookies.Add(aspCookiesPwd);rn HttpContext.Current.Response.Cookies.Add(aspCookiesPower);rn HttpContext.Current.Response.Cookies.Add(aspCookiesUserID);rnrn Response.Redirect("index.aspx");rnrn[/code]rnrnrn退出登录代码rn[code=csharp]rnHttpCookie cookies = Request.Cookies["aspusername"];rnif (cookies != null)rnrn cookies.Expires = System.DateTime.Now.AddDays(-30);rn Response.Cookies.Add(cookies);rnrnrnHttpCookie cookies1 = Request.Cookies["password"];rnif (cookies1 != null)rnrn cookies1.Expires = System.DateTime.Now.AddDays(-30);rn Response.Cookies.Add(cookies1);rnrnrnHttpCookie cookies2 = Request.Cookies["uid"];rnif (cookies2 != null)rnrn cookies2.Expires = System.DateTime.Now.AddDays(-30);rn Response.Cookies.Add(cookies2);rnrnrnHttpCookie cookies3 = Request.Cookies["spower"];rnif (cookies3 != null)rnrn cookies3.Expires = System.DateTime.Now.AddDays(-30);rn Response.Cookies.Add(cookies3);rnrnrnHttpCookie cookies4 = Request.Cookies["aspuserId"];rnif (cookies4 != null)rnrn cookies4.Expires = System.DateTime.Now.AddDays(-30);rn Response.Cookies.Add(cookies4);rnrnResponse.Redirect("index.aspx"); rn[/code]rnrnrn
请为一个异常问题
对话框类:CDialogb* m_pDialog;rnrn在试图类中:rnrnvoid CmainView::OnSize(UINT nType, int cx, int cy)rnrn CView::OnSize(nType, cx, cy);rn if (m_pDialog!=NULL)rn rn m_pDialog->SendMessage(WM_SIZE,nType,(cy<<16)+cx);发生异常是什么原因呀!rn_AFXWIN_INLINE LRESULT CWnd::_AFX_FUNCNAME(SendMessage)(UINT message, WPARAM wParam, LPARAM lParam) constrn ASSERT(::IsWindow(m_hWnd)); return ::SendMessage(m_hWnd, message, wParam, lParam);
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