String resource = "org/mybatis/example/Configuration.xml"; Reader reader = Resources.getResourceAsReader(resource); sqlMapper = new SqlSessionFactoryBuilder().build(reader);
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<environments default="development">
<environment id="development">
<transactionManager type="JDBC"/>
<dataSource type="POOLED">
<property name="driver" value="${driver}"/>
<property name="url" value="${url}"/>
<property name="username" value="${username}"/>
<property name="password" value="${password}"/>
</dataSource>
</environment>
</environments>
<mappers>
<mapper resource="org/mybatis/example/BlogMapper.xml"/>
</mappers>
</configuration>
SqlSession session = sqlMapper.openSession();
try{
Blog blog = (Blog)session.selectOne("org.mybatis.example.BlogMapper.selectBlog",101);
}finally{
session.close();
}
SqlSession session = sqlSessionFactory.openSession();
try {
BlogMapper mapper = session.getMapper(BlogMapper.class);
Blog blog = mapper.selectBlog(101);
}finally{
session.close();
}
<?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="org.mybatis.example.BlogMapper">
<select id="selectBlog" parameterType="int" resultType="Blog">
select * from Blog where id = #{id}
</select>
</mapper>
Blog blog = (Blog)session.selectOne("org.mybatis.example.BlogMapper.selectBlog", 101);
BlogMapper mapper = session.getMapper(BlogMapper.class); Blog blog = mapper.selectBlog(101);
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