mybatis和ibatis原始实现DAO

mybatis和ibatis原始实现DAO

package com.xuan.mybatis.dao;

import java.util.Date;
import java.util.List;

import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;

import com.xuan.mybatis.po.User;

/**
*
* <p>
* Title: UserDaoImpl
* </p>
* <p>
* Description:dao接口实现类
* </p>
* <p>
* Company: www.itcast.com
* </p>
*
* @author 传智.燕青
* @date 2015-4-22下午2:47:17
* @version 1.0
*/
public class UserDaoImpl implements UserDao {

// 需要向dao实现类中注入SqlSessionFactory
// 这里通过构造方法注入
private SqlSessionFactory sqlSessionFactory;

public UserDaoImpl(SqlSessionFactory sqlSessionFactory) {
this.sqlSessionFactory = sqlSessionFactory;
}

@Override
public User findUserById(int id) throws Exception {
SqlSession sqlSession = sqlSessionFactory.openSession();

User user = sqlSession.selectOne("test.findUserById", id);

// 释放资源
sqlSession.close();

return user;

}

@Override
public List<User> findUserByName(String name) throws Exception {
SqlSession sqlSession = sqlSessionFactory.openSession();

List<User> list = sqlSession.selectList("test.findUserByName", name);

// 释放资源
sqlSession.close();

return list;
}

@Override
public void insertUser(User user) throws Exception {
SqlSession sqlSession = sqlSessionFactory.openSession();

//执行插入操作
sqlSession.insert("test.insertUser", user);

// 提交事务
sqlSession.commit();

// 释放资源
sqlSession.close();

}

@Override
public void deleteUser(int id) throws Exception {
SqlSession sqlSession = sqlSessionFactory.openSession();

//执行插入操作
sqlSession.delete("test.deleteUser", id);

// 提交事务
sqlSession.commit();

// 释放资源
sqlSession.close();

}

}