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坐等大神给看看此异常是什么意思,看了半天愣是没看懂 org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:948)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:364)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:62)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:354)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.apache.ibatis.session.Configuration$StrictMap.get(Configuration.java:775)org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:615)org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:608)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:103)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:62)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:354)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
坐等大神给解释下此异常的意思..看了半天愣是没看懂.. org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:948)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:364)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:62)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:354)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.apache.ibatis.session.Configuration$StrictMap.get(Configuration.java:775)org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:615)org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:608)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:103)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:62)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:354)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
坐等大神给解释下此异常的意思..看了半天愣是没看懂.. org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:948)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:364)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:62)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:354)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.apache.ibatis.session.Configuration$StrictMap.get(Configuration.java:775)org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:615)org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:608)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:103)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:62)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:354)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
坐等大神给解释下此异常的意思..看了半天愣是没看懂.. org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:948)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:364)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:62)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:354)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.apache.ibatis.session.Configuration$StrictMap.get(Configuration.java:775)org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:615)org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:608)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:103)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:62)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:354)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
坐等大神给解释下此异常的意思..看了半天愣是没看懂.. org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:948)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:73)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:364)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause org.apache.ibatis.exceptions.PersistenceException: ### Error querying database. Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.get### Cause: java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:23)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:107)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:62)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:354)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) root cause java.lang.IllegalArgumentException: Mapped Statements collection does not contain value for cn.itcast.mapper.UserMapper.getorg.apache.ibatis.session.Configuration$StrictMap.get(Configuration.java:775)org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:615)org.apache.ibatis.session.Configuration.getMappedStatement(Configuration.java:608)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:103)org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:98)org.apache.ibatis.session.defaults.DefaultSqlSession.selectOne(DefaultSqlSession.java:62)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:354)$Proxy9.selectOne(Unknown Source)org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:159)cn.jj.dao.impl.UserDaoImpl.get(UserDaoImpl.java:31)cn.jj.service.UserServiceImpl.get(UserServiceImpl.java:27)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:96)org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:260)org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:91)org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)$Proxy12.get(Unknown Source)cn.jj.controller.UserController.toupdate(UserController.java:51)sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)java.lang.reflect.Method.invoke(Method.java:601)org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440)org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428)org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:925)org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)javax.servlet.http.HttpServlet.service(HttpServlet.java:621)org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)javax.servlet.http.HttpServlet.service(HttpServlet.java:722)org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
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