package com.ykmimi.dao;

import org.apache.ibatis.session.SqlSession;

import com.ykmimi.entity.Student;

import com.ykmimi.utils.MyBatisUtils;

public class StudentDaoImpl implements IStudentDao {

    private SqlSession sqlSession;

    @Override

    public void insertStu(Student student) {

        try {

            //通过MyBatis工具类获取SqlSession

            sqlSession = MyBatisUtils.getSqlSession();

            // .相关操作

            sqlSession.insert("stu.insertStudent", student);

            sqlSession.commit();

        } finally {// 异常在getSqlSession方法中被捕获

            if (sqlSession != null) {

                sqlSession.close();

            }

        }

    }

}

package com.ykmimi.utils;

import java.io.IOException;

import java.io.InputStream;

import org.apache.ibatis.io.Resources;

import org.apache.ibatis.session.SqlSession;

import org.apache.ibatis.session.SqlSessionFactory;

import org.apache.ibatis.session.SqlSessionFactoryBuilder;

/*

 * 获取SqlSession

 */

public class MyBatisUtils {

    private static SqlSessionFactory sqlSessionFactory;

    public static SqlSession getSqlSession() {

        try {

            InputStream is = Resources.getResourceAsStream("mybatis.xml");

            if (sqlSessionFactory == null) {

                sqlSessionFactory = new SqlSessionFactoryBuilder().build(is);

            }

            return sqlSessionFactory.openSession();

        } catch (IOException e) {

            e.printStackTrace();

        }

        return null;

    }

}