文章目录
一次简单查询1. [解析xml配置文件，生成SqlSessionFactory](https://blog.csdn.net/wrongyao/article/details/90575448)2. [通过SqlSessionFactory创建sqlSession](https://blog.csdn.net/wrongyao/article/details/90576026)3. [Mapper接口到SqlSession的跨越](https://blog.csdn.net/wrongyao/article/details/90576828)4. [SqlSeesion执行sql语句](https://mp.csdn.net/postedit/101426262)
githup项目地址
一次简单查询
public class Test {
public static void main(String
[] args
) {
try {
String resource
= "mybatis.xml";
InputStream inputStream
= Resources
.getResourceAsStream(resource
);
SqlSessionFactory sqlSessionFactory
= new SqlSessionFactoryBuilder().build(inputStream
);
SqlSession sqlSession
= sqlSessionFactory
.openSession();
SysRoleMapper sysRoleMapper
= sqlSession
.getMapper(SysRoleMapper
.class);
SysRole sysRole
= sysRoleMapper
.selectById(1);
System
.out
.println(sysRole
);
sqlSession
.close();
} catch (IOException e
) {
e
.printStackTrace();
} finally {
}
}
}
上述过程可以分为下面几个步骤
1. 解析xml配置文件，生成SqlSessionFactory
2. 通过SqlSessionFactory创建sqlSession
3. Mapper接口到SqlSession的跨越
4. SqlSeesion执行sql语句
