【发布时间】：2026-02-13 07:50:01
【问题描述】：
我正在使用 j Meter 来检查从按下客户端的 a4j 按钮到服务器响应所需的时间。
为了实现这一点，我使用 fiddler 打开了一个 HTTP 请求并寻找：
- ajax 请求将其解码并插入到 http 标头中的值中？
- 为了发送请求，我还应该插入什么？会话标识？怎么插入到http头中？
我在运行 Tomcat 的同一台机器上运行它，我可以在我的 Eclipse 记录器中看到我进入了正确的页面，但是没有按下按钮，有人可以帮助我吗？
这是我在 Eclipse 中得到的记录器：
2011-08-17 09:52:32,673 ERROR [_ErrorPageWriter] An exception occurred
javax.faces.FacesException: javax.crypto.BadPaddingException: Given final block not properly padded
at org.apache.myfaces.shared_impl.util.StateUtils.symmetric(StateUtils.java:456)
at org.apache.myfaces.shared_impl.util.StateUtils.symmetric(StateUtils.java:494)
at org.apache.myfaces.shared_impl.util.StateUtils.decrypt(StateUtils.java:294)
at org.apache.myfaces.shared_impl.util.StateUtils.reconstruct(StateUtils.java:243)
at org.apache.myfaces.renderkit.html.HtmlResponseStateManager.getSavedState(HtmlResponseStateManager.java:187)
at org.apache.myfaces.renderkit.html.HtmlResponseStateManager.getTreeStructureToRestore(HtmlResponseStateManager.java:151)
at org.ajax4jsf.application.AjaxStateManager.restoreLogicalViewId(AjaxStateManager.java:564)
at org.ajax4jsf.application.AjaxStateManager.restoreStateFromSession(AjaxStateManager.java:495)
at org.ajax4jsf.application.AjaxStateManager.restoreView(AjaxStateManager.java:444)
at org.apache.myfaces.application.jsp.JspViewHandlerImpl.restoreView(JspViewHandlerImpl.java:515)
at org.ajax4jsf.application.ViewHandlerWrapper.restoreView(ViewHandlerWrapper.java:107)
at org.apache.myfaces.lifecycle.RestoreViewExecutor.execute(RestoreViewExecutor.java:85)
at org.apache.myfaces.lifecycle.LifecycleImpl.executePhase(LifecycleImpl.java:103)
at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:76)
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:151)
at org.apache.myfaces.webapp.MyFacesServlet.service(MyFacesServlet.java:103)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.ajax4jsf.webapp.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:206)
at org.ajax4jsf.webapp.BaseFilter.handleRequest(BaseFilter.java:290)
at org.ajax4jsf.webapp.BaseFilter.processUploadsAndHandleRequest(BaseFilter.java:388)
at org.ajax4jsf.webapp.BaseFilter.doFilter(BaseFilter.java:515)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.coral.project.web.context.ExecutionContextFilter.doFilter(ExecutionContextFilter.java:75)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:662)
Caused by: javax.crypto.BadPaddingException: Given final block not properly padded
at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..)
at com.sun.crypto.provider.SunJCE_f.b(DashoA13*..)
at com.sun.crypto.provider.DESCipher.engineDoFinal(DashoA13*..)
at javax.crypto.Cipher.doFinal(DashoA13*..)
at org.apache.myfaces.shared_impl.util.StateUtils.symmetric(StateUtils.java:452)
... 40 more
编辑：我认为这可能有助于理解我的问题：
【问题讨论】：
-
你试过我的建议了吗？如果有，你得到了什么结果？