MyBatis 异常 集锦

异常1.使用映射器 (还没有使用Spring)

异常信息摘要：

org.apache.ibatis.binding.BindingException: Type interface com.jege.mybatis.mapper.UserMapper is not known to the MapperRegistry.

at org.apache.ibatis.binding.MapperRegistry.getMapper(MapperRegistry.java:47)

at org.apache.ibatis.session.Configuration.getMapper(Configuration.java:717)

at org.apache.ibatis.session.defaults.DefaultSqlSession.getMapper(DefaultSqlSession.java:292)

at com.jege.mybatis.MapperInterfaceTest.setUp(MapperInterfaceTest.java:38)

异常信息说明：UserMapper还没有注册

解决思路：注册一个空的映射文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
    "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.jege.mybatis.mapper.UserMapper">
</mapper>

ps:如果使用Spring集成MyBatis后没有此问题

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