package com.imooc.mybatis.utils; import org.apache.ibatis.io.Resources; import org.apache.ibatis.session.SqlSession; import org.apache.ibatis.session.SqlSessionFactory; import org.apache.ibatis.session.SqlSessionFactoryBuilder; import java.io.Reader; public class MybatisUtils { private static SqlSessionFactory sqlSessionFactory = null; static { try { Reader reader = Resources.getResourceAsReader("mybatis-config.xml"); sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader); }catch (Exception e) { e.printStackTrace(); throw new ExceptionInInitializerError(e); } } //创建sqlSession public static SqlSession openSession(){ return sqlSessionFactory.openSession(); } //关闭sqlSession public static void closeSession(SqlSession sqlSession) { if(sqlSession!=null) { sqlSession.close(); } } }