A query was run and no Result Maps were found for...原来是mapper.xml文件出了问题,是使用MyBatis最常见的一种错误 _xml文件

莫道桑榆晚，为霞尚满天。这篇文章主要讲述A query was run and no Result Maps were found for...原来是mapper.xml文件出了问题,是使用MyBatis最常见的一种错误相关的知识，希望能为你提供帮助。
今天遇到一个问题，原来是mapper.xml文件出了问题,是使用MyBatis最常见的一种错误

报错的结果是这样的：

A query was run and no Result Maps were found for the Mapped Statement \'cn.zrgk.dao.RoleMapper.getRoleList\'.

It\'s likely that neither a Result Type nor a Result Map was specified.

org.apache.ibatis.executor.ExecutorException: A query was run and no Result Maps were found for the Mapped Statement \'cn.zrgk.dao.RoleMapper.getRoleList\'.
It\'s likely that neither a Result Type nor a Result Map was specified. org.apache.ibatis.executor.resultset.FastResultSetHandler.validateResultMapsCount(FastResultSetHandler.java:177) org.apache.ibatis.executor.resultset.FastResultSetHandler.handleResultSets(FastResultSetHandler.java:150) org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:57) org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:70) org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:57) org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:259) org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:132) org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:105) org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:81) 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)

【A query was run and no Result Maps were found for...原来是mapper.xml文件出了问题,是使用MyBatis最常见的一种错误】我的mapper.xml文件中有个查询语句是这样写的：
大家看看图一，好像根本没有错误，对吗？再看看