Question

mybatis使用mapper接口加注释的时候出错

Exception in thread "main" java.lang.ExceptionInInitializerError
Caused by: org.apache.ibatis.exceptions.PersistenceException:
### Error building SqlSession.
### The error may exist in SQL Mapper Configuration
### Cause: org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 27; columnNumber: 65; 必须为元素类型 "mapper" 声明属性 "class"。
at org.apache.ibatis.exceptions.ExceptionFactory.wrapException(ExceptionFactory.java:8)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:50)
at org.apache.ibatis.session.SqlSessionFactoryBuilder.build(SqlSessionFactoryBuilder.java:33)
at com.yihaomen.mybatis.test.TestEmp1.<clinit>(TestEmp1.java:26)
Caused by: org.apache.ibatis.builder.BuilderException: Error creating document instance. Cause: org.xml.sax.SAXParseException; lineNumber: 27; columnNumber: 65; 必须为元素类型 "mapper" 声明属性 "class"。

Answer 1

你是用的spring-mybatis整合还是单独用的，我是用的整合，你看下你那xml里面是不是没有这句话<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

追问

我的mybatis是单独用的没有加其他的东西，

 <mapper resource="com/yihaomen/mybatis/model/emps.xml"/>

• <mapper class="com.yihaomen.mybatis.mapper.EmpMapper1"/>

加了第二句就报错了