MyBatis源码解析之环境搭建

企业级web开发中，用的比较多的就属于mybatis了。mybatis是一个与数据库交互的持久层框架。我们就简单分析下mybatis的底层原理。

这里环境搭建可以参考mybatis官方文档
mybatis官网文档

1、创建datasource

private static DataSource getDataSource(){
        String url = "jdbc:mysql://192.168.175.3:3306/ssm_crud?failOverReadOnly=false&useSSL=false";
        String userName = "root";
        String password = "root";
        String driver = "com.mysql.jdbc.Driver";
        return new PooledDataSource(driver, url, userName, password);
    }

2、创建sqlSessionFactory

public static SqlSessionFactory getFactory(){
        DataSource dataSource = getDataSource();
        TransactionFactory transactionFactory = new JdbcTransactionFactory();
        Environment environment = new Environment("development", transactionFactory, dataSource);
        Configuration configuration = new Configuration(environment);
        configuration.addMapper(Mapper.class);
        return new SqlSessionFactoryBuilder().build(configuration);
    }

3、获取sqlSession，拿到结果

public static void main(String[] args) {
        SqlSessionFactory factory = MyBatisConfig.getFactory();
        SqlSession sqlSession = factory.openSession();
        Mapper myMapper = sqlSession.getMapper(Mapper.class);
        String name = myMapper.select("M");
        System.err.println(name);
    }

毫无疑问，执行结果 也拿到了。