mapper.xml無法解析字段的問題

更新時(shí)間：2023年06月26日 11:11:25 作者：火山愛吃白菜

這篇文章主要介紹了mapper.xml無法解析字段的問題，具有很好的參考價(jià)值，希望對(duì)大家有所幫助。如有錯(cuò)誤或未考慮完全的地方，望不吝賜教

mapper.xml無法解析字段

寫mapper.xml遇到一個(gè)問題，語句里的字段都爆紅，無法解析，也找不到數(shù)據(jù)源

網(wǎng)上找了很多方法

找到 File->Settings->Languages&Frameworks->SQL Resolution Scopes 左邊選擇你的mapper包路徑，解析范圍選擇自己的數(shù)據(jù)庫源，不要選擇默認(rèn)

要是沒有的話

添加自己的數(shù)據(jù)庫源

還有一種情況是你的idea創(chuàng)建數(shù)據(jù)源沒有更新

我的情況是在navicat修改了數(shù)據(jù)庫字段，但沒有更新idea里的數(shù)據(jù)源，所以也會(huì)報(bào)錯(cuò)

refresh一下，字段報(bào)錯(cuò)就消失啦

mapper.xml報(bào)錯(cuò)

HTTP狀態(tài) 500 - 內(nèi)部服務(wù)器錯(cuò)誤

類型異常報(bào)告

消息 Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.binding.BindingException: Parameter 'user_name)' not found. Available parameters are [size, user_name, page, param3, param1, param2]

描述服務(wù)器遇到一個(gè)意外的情況，阻止它完成請(qǐng)求。

例外情況

org.springframework.web.util.NestedServletException: Request processing failed; nested exception is org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.binding.BindingException: Parameter 'user_name)' not found. Available parameters are [size, user_name, page, param3, param1, param2]
   org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014)
   org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:652)
   org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
   org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
   org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
   org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)

根本原因。

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.binding.BindingException: Parameter 'user_name)' not found. Available parameters are [size, user_name, page, param3, param1, param2]
   org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:96)
   org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:441)
   com.sun.proxy.$Proxy17.selectList(Unknown Source)
   org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:224)
   org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:147)
   org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:80)
   org.apache.ibatis.binding.MapperProxy$PlainMethodInvoker.invoke(MapperProxy.java:145)
   org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:86)
   com.sun.proxy.$Proxy22.queryUsername(Unknown Source)
   com.zqh.service.UsersServiceImpl.queryUsername(UsersServiceImpl.java:93)
   com.zqh.controller.UsersController.queryUsername(UsersController.java:76)
   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.doInvoke(InvocableHandlerMethod.java:205)
   org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150)
   org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117)
   org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
   org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
   org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
   org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067)
   org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)
   org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
   org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:652)
   org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
   org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
   org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
   org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)

根本原因。

org.apache.ibatis.binding.BindingException: Parameter 'user_name)' not found. Available parameters are [size, user_name, page, param3, param1, param2]
   org.apache.ibatis.binding.MapperMethod$ParamMap.get(MapperMethod.java:212)
   org.apache.ibatis.reflection.wrapper.MapWrapper.get(MapWrapper.java:45)
   org.apache.ibatis.reflection.MetaObject.getValue(MetaObject.java:122)
   org.apache.ibatis.executor.BaseExecutor.createCacheKey(BaseExecutor.java:219)
   org.apache.ibatis.executor.CachingExecutor.createCacheKey(CachingExecutor.java:146)
   com.github.pagehelper.PageInterceptor.intercept(PageInterceptor.java:83)
   org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:62)
   com.sun.proxy.$Proxy36.query(Unknown Source)
   org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:151)
   org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:145)
   org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:140)
   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.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:427)
   com.sun.proxy.$Proxy17.selectList(Unknown Source)
   org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:224)
   org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:147)
   org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:80)
   org.apache.ibatis.binding.MapperProxy$PlainMethodInvoker.invoke(MapperProxy.java:145)
   org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:86)
   com.sun.proxy.$Proxy22.queryUsername(Unknown Source)
   com.zqh.service.UsersServiceImpl.queryUsername(UsersServiceImpl.java:93)
   com.zqh.controller.UsersController.queryUsername(UsersController.java:76)
   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.doInvoke(InvocableHandlerMethod.java:205)
   org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150)
   org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117)
   org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
   org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
   org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
   org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1067)
   org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963)
   org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
   org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:652)
   org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
   javax.servlet.http.HttpServlet.service(HttpServlet.java:733)
   org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
   org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
   org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)