java.lang.NoSuchMethodError异常

2012-11-7 15:47:00 org.apache.catalina.core.StandardWrapperValve invoke严重: Servlet.service() for servlet SubmitRecordListServlet threw exceptionjava.lang.NoSuchMethodError: model.oj_submitRecord.getDate()Ljava/sql/Timestamp;at org.apache.jsp.oj_005fmanage.tab.SubmitRecordList_jsp._jspService(SubmitRecordList_jsp.java:242)at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:654)at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:445)at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:379)at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:292)at servlet.SubmitRecordListServlet.doPost(SubmitRecordListServlet.java:73)at servlet.SubmitRecordListServlet.doGet(SubmitRecordListServlet.java:23)at javax.servlet.http.HttpServlet.service(HttpServlet.java:690)at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)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:175)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)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:263)at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:584)at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)at java.lang.Thread.run(Thread.java:619)

 

 

 

在开发中遇到了以上这种异常，刚开始，也不知道怎么解决，百度也没找到好的结局办法！！！！

于是自己开始摸索，java.lang.NoSuchMethodError: model.oj_submitRecord.getDate()Ljava/sql/Timestamp;看到这个异常首先想到的是，oj_submitRecord里面是否有getDate（）方法，仔细检查后，有这个方法，没错！！

 

 

没错为什么跳到jsp页面时，会出错？，于是我就让servlet不在跳转到jsp页，异常消失！！！所以我就确定jsp里面有错误，于是我就找到调用getDate()方法这一句<%=u.getDate()%>,然后，就换成<%=u.getDate()+""%>居然奇迹般的成功了！！！！异常消失！！！看来是Myeclipse自身的问题啊！！