Mybatis_4.DBUtil.java

1.获取SqlSessionFactory

/**
 * @author：滕鹏飞 
 * @version: 1.0
 * @Created on: 2018-8-31 下午2:10:45
 * 类说明:加载配置文件，生成session
 */
public class DBUtil {

	public static SqlSessionFactory sessionFactory;
	static{
		try {
			//使用Mybatis提供的Resources类加载mybatis的配置文件
			Reader reader = Resources.getResourceAsReader("mybatis.cfg.xml");
			//构建session工厂
			sessionFactory = new SqlSessionFactoryBuilder().build(reader);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
	//创建能执行映射文件中SQL的SQLsession
	public static SqlSession getSession(){
		return sessionFactory.openSession(true);
	}
}