Request processing failed; nested exception is org.apache.ibatis.builder.IncompleteElementException:

最新推荐文章于 2023-04-05 15:43:05 发布
最新推荐文章于 2023-04-05 15:43:05 发布
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本文链接：https://blog.youkuaiyun.com/xiaoye142034/article/details/78988420
本文介绍了一个关于MyBatis框架中参数映射配置错误导致的500异常问题，详细解析了异常堆栈信息，并给出了正确的解决方法。

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HTTP Status 500 - Request processing failed; nested exception is org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map cn.itcast.ssm.po.ItemsQueryVo

type Exception report

message Request processing failed; nested exception is org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map cn.itcast.ssm.po.ItemsQueryVo

description The server encountered an internal error that prevented it from fulfilling this request.

exception

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map cn.itcast.ssm.po.ItemsQueryVo
	org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:927)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:811)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:728)

root cause

org.apache.ibatis.builder.IncompleteElementException: Could not find parameter map cn.itcast.ssm.po.ItemsQueryVo
	org.apache.ibatis.builder.MapperBuilderAssistant.setStatementParameterMap(MapperBuilderAssistant.java:319)
	org.apache.ibatis.builder.MapperBuilderAssistant.addMappedStatement(MapperBuilderAssistant.java:283)
	org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:107)
	org.apache.ibatis.session.Configuration.buildAllStatements(Configuration.java:698)
	org.apache.ibatis.session.Configuration.hasStatement(Configuration.java:668)
	org.apache.ibatis.session.Configuration.hasStatement(Configuration.java:663)
	org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:180)
	org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:43)
	org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:58)
	org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:51)
	com.sun.proxy.$Proxy16.findItemsList(Unknown Source)
	cn.itcast.ssm.service.impl.ItemsServiceImpl.findItemsList(ItemsServiceImpl.java:24)
	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:606)
	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.invoke(TransactionInterceptor.java:110)
	org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:90)
	org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	com.sun.proxy.$Proxy17.findItemsList(Unknown Source)
	cn.itcast.ssm.controller.ItemsController.queryItems(ItemsController.java:32)
	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:606)
	org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)
	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:746)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:687)
	org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
	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:915)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:811)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:728)

root cause

java.lang.IllegalArgumentException: Parameter Maps collection does not contain value for cn.itcast.ssm.po.ItemsQueryVo
	org.apache.ibatis.session.Configuration$StrictMap.get(Configuration.java:797)
	org.apache.ibatis.session.Configuration.getParameterMap(Configuration.java:570)
	org.apache.ibatis.builder.MapperBuilderAssistant.setStatementParameterMap(MapperBuilderAssistant.java:317)
	org.apache.ibatis.builder.MapperBuilderAssistant.addMappedStatement(MapperBuilderAssistant.java:283)
	org.apache.ibatis.builder.xml.XMLStatementBuilder.parseStatementNode(XMLStatementBuilder.java:107)
	org.apache.ibatis.session.Configuration.buildAllStatements(Configuration.java:698)
	org.apache.ibatis.session.Configuration.hasStatement(Configuration.java:668)
	org.apache.ibatis.session.Configuration.hasStatement(Configuration.java:663)
	org.apache.ibatis.binding.MapperMethod$SqlCommand.<init>(MapperMethod.java:180)
	org.apache.ibatis.binding.MapperMethod.<init>(MapperMethod.java:43)
	org.apache.ibatis.binding.MapperProxy.cachedMapperMethod(MapperProxy.java:58)
	org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:51)
	com.sun.proxy.$Proxy16.findItemsList(Unknown Source)
	cn.itcast.ssm.service.impl.ItemsServiceImpl.findItemsList(ItemsServiceImpl.java:24)
	sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	java.lang.reflect.Method.invoke(Method.java:606)
	org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:317)
	org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:183)
	org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:150)
	org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
	org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:90)
	org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
	org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
	com.sun.proxy.$Proxy17.findItemsList(Unknown Source)
	cn.itcast.ssm.controller.ItemsController.queryItems(ItemsController.java:32)
	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:606)
	org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:219)
	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:746)
	org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:687)
	org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80)
	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:915)
	org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:811)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
	org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:796)
	javax.servlet.http.HttpServlet.service(HttpServlet.java:728)

note The full stack trace of the root cause is available in the Apache Tomcat/7.0.42 logs.

Apache Tomcat/7.0.42

解决办法：
把Mapper.xml中的parameterMap改为parameterType,因为mybaties中已经不再用parameterMap这个属性了。

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