标签:
使用mybatis时出现异常问题:
有如下的错误
1 Error querying database. Cause: org.apache.ibatis.executor.ExecutorException: A query was run and no Result Maps were found for the Mapped Statement ‘user.insertUser!selectKey‘. It‘s likely that neither a Result Type nor a Result Map was specified.
这个是使用MyBatis最常见的一种错误,从其描述来看是user.insertUser!selectKey这个Statement没有Result Type或Result Map。下面是我的配置文件的statement:
1 <insert id="insertUser" parameterType="com.luchao.mybatis.first.po.User"> 2 <selectKey keyProperty="id" order="AFTER" > 3 select LAST_INSERT_ID() 4 </selectKey> 5 insert into user(username,birthday,sex,address) value (#{username},#{birthday},#{sex},#{address}); 6 </insert>
可以看出主要是<selectKey>没有resultType所致的。
mybatis中不管什么查询,都必须返回resultType或者resultMap的值,否则就会报错的。
标签:
原文地址:http://www.cnblogs.com/lcngu/p/5437079.html