六月 07, 2017 1:04:08 上午 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet [UserServlet] in context with path [/onlineexam] threw exception
java.lang.RuntimeException: java.lang.reflect.InvocationTargetException
at com.formssi.onlineexam.user.action.BaseServlet.service(BaseServlet.java:61)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:436)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1078)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2517)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2506)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:744)
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at com.formssi.onlineexam.user.action.BaseServlet.service(BaseServlet.java:50)
... 22 more
Caused by: java.lang.NoClassDefFoundError: com/formssi/onlineexam/user/entity/Role
at com.formssi.onlineexam.user.action.UserServlet.register(UserServlet.java:48)
... 27 more
Caused by: java.lang.NoClassDefFoundError: com/formssi/onlineexam/user/entity/Role
看你配置文件中的Role实体路径
从你的错误看得到 Caused by: java.lang.NoClassDefFoundError: com/formssi/onlineexam/user/entity/Role
at com.formssi.onlineexam.user.action.UserServlet.register(UserServlet.java:48)
没有找到类定义；
你去检查下com.formssi.onlineexam.user.action.UserServlet.register(UserServlet.java:48) 这行，也可能是配置到servlet路径有错
如果没有什么 错误的话 把服务器里面部署的删干净 重启esclipse 重新部署一下