SSM-@Autowired 未写报错

2016-07-24 14:45:12,154 [http-apr-82-exec-3] DEBUG [org.springframework.web.servlet.DispatcherServlet] – Handler execution resulted in exception – forwarding to resolved error view: ModelAndView: reference to view with name ‘error’; model is {message=未知异常}

java.lang.NullPointerException


at cn.drawing.ssm.controller.****.****(*****.java:37)


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 org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)


at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)


at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)


at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:746)


at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:687)


at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)


at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)


at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)


at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:915)


at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:822)


at javax.servlet.http.HttpServlet.service(HttpServlet.java:650)


at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796)


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.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)


at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)


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:745)