Bad version number in .class file引发的问题
上午学习了下flex的基础知识。下午就开始搭建项目环境。
svn没有权限，只有用优盘拷贝项目文件了。拷贝，导入工程，用了我快半个小时。
自此开始了我下午的惨痛经历。
导入项目到myeclipse，拷贝的工程。很多红叉叉，几分钟搞定之后。发布到tomcat—》启动
各种debug弹出来。
Resume N次过后。启动完毕。
Ie中访问工程，登录框出来了。输入用户名密码，点击登录。出现如下问题
[05-21 18:07:56.296 INFO SystemProperties.<init>():30] Loaded file:/D:/work%20pro/apache-tomcat-5.5.20/webapps/TINMS/WEB-INF/classes/metar-security.properties[05-21 18:07:56.531 ERROR DispatchAction.dispatchMethod():297] Dispatch[/login] to method 'login' returned an exceptionjava.lang.reflect.InvocationTargetExceptionat sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)at java.lang.reflect.Method.invoke(Unknown Source)at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:274)at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:194)at org.springframework.web.struts.DelegatingActionProxy.execute(DelegatingActionProxy.java:106)at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:75)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)at java.lang.Thread.run(Unknown Source)Caused by: java.lang.UnsupportedClassVersionError: Bad version number in .class fileat java.lang.ClassLoader.defineClass1(Native Method)at java.lang.ClassLoader.defineClass(Unknown Source)at java.security.SecureClassLoader.defineClass(Unknown Source)at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1815)at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:869)at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1322)at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1201)at java.lang.ClassLoader.loadClassInternal(Unknown Source)at com.metarnet.security.manager.UserManager.getOnlineUserIDList(UserManager.java:533)at com.qtby.tinms.login.service.LoginManager.CheckUser(LoginManager.java:54)at com.qtby.tinms.login.action.LoginAction.login(LoginAction.java:123)... 31 more[05-21 18:07:56.546 WARN RequestProcessor.processException():516] Unhandled Exception thrown: class javax.servlet.ServletException[05-21 18:07:56.546 ERROR StandardWrapperValve.invoke():253] Servlet.service() for servlet action threw exceptionjava.lang.UnsupportedClassVersionError: Bad version number in .class fileat java.lang.ClassLoader.defineClass1(Native Method)at java.lang.ClassLoader.defineClass(Unknown Source)at java.security.SecureClassLoader.defineClass(Unknown Source)at org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLoader.java:1815)at org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.java:869)at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1322)at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1201)at java.lang.ClassLoader.loadClassInternal(Unknown Source)at com.metarnet.security.manager.UserManager.getOnlineUserIDList(UserManager.java:533)at com.qtby.tinms.login.service.LoginManager.CheckUser(LoginManager.java:54)at com.qtby.tinms.login.action.LoginAction.login(LoginAction.java:123)at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)at java.lang.reflect.Method.invoke(Unknown Source)at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:274)at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:194)at org.springframework.web.struts.DelegatingActionProxy.execute(DelegatingActionProxy.java:106)at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:75)at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77)at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)at java.lang.Thread.run(Unknown Source)
java.lang.UnsupportedClassVersionError: Bad version number in .class file
