500 Internal Server Error
来源：6-9 用户模块所有功能自测试
乔大少
2017-10-09
<html><head><title>Apache Tomcat/7.0.75 - Error report</title><style><!--H1 {fontfamily:Tahoma,Arial,sansserif;color:white;backgroundcolor:#525D76;fontsize:22px;} H2 {fontfamily:Tahoma,Arial,sansserif;color:white;backgroundcolor:#525D76;fontsize:16px;} H3 {fontfamily:Tahoma,Arial,sansserif;color:white;backgroundcolor:#525D76;fontsize:14px;} BODY {fontfamily:Tahoma,Arial,sansserif;color:black;backgroundcolor:white;} B {fontfamily:Tahoma,Arial,sansserif;color:white;backgroundcolor:#525D76;} P {fontfamily:Tahoma,Arial,sansserif;background:white;color:black;fontsize:12px;}A {color : black;}A.name {color : black;}HR {color : #525D76;}--></style> </head><body><h1>HTTP Status 500 - Request processing failed; nested exception is org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.mmall.dao.UserMapper.checkUsername</h1><HR size="1" noshade="noshade"><p><b>type</b> Exception report</p><p><b>message</b> <u>Request processing failed; nested exception is org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.mmall.dao.UserMapper.checkUsername</u></p><p><b>description</b> <u>The server encountered an internal error that prevented it from fulfilling this request.</u></p><p><b>exception</b> <pre>org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.mmall.dao.UserMapper.checkUsername
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:943)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:833)
javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:807)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108)
</pre></p><p><b>root cause</b> <pre>org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.mmall.dao.UserMapper.checkUsername
org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:223)
org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:48)
org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:59)
org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52)
com.sun.proxy.$Proxy22.checkUsername(Unknown Source)
com.mmall.service.impl.UserServiceImpl.login(UserServiceImpl.java:28)
com.mmall.controller.portal.UserController.login(UserController.java:39)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
java.lang.reflect.Method.invoke(Method.java:498)
org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:214)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:748)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:689)
org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:945)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:876)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:931)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:833)
javax.servlet.http.HttpServlet.service(HttpServlet.java:650)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:807)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:108)
</pre></p><p><b>note</b> <u>The full stack trace of the root cause is available in the Apache Tomcat/7.0.75 logs.</u></p><HR size="1" noshade="noshade"><h3>Apache Tomcat/7.0.75</h3></body></html>
1回答
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org.apache.ibatis.binding.BindingException: Invalid bound statement (not found): com.mmall.dao.UserMapper.checkUsername
关键异常是这里，无效的绑定声明检查一下哟~~
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