Mybatis工具类（七）

package com.bjpowernode.util;
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.IOException;
import java.io.InputStream;
// mybatis工具类
public class MyBatisUtils {
    private static SqlSessionFactory factory = null;
    static{
        String config = "mybatis.xml";
        try {
            InputStream in = Resources.getResourceAsStream(config); // 1.读取主配置文件
            factory = new SqlSessionFactoryBuilder().build(in); // 2.创建SqlSessionFactory对象
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    // 获取SqlSession的方法
    public static SqlSession getSqlSession(){
        SqlSession sqlSession = null;
        if(factory != null){
            sqlSession = factory.openSession(true); // 3.创建SqlSession对象
        }
        return sqlSession;
    }
}