Mybatis接口编程方式实现增删改查 - 数据库编程

SqlSession session = null; try { session = sqlSessionFactory.openSession(); session.update("com.mucfc.model.EmployeerMapper.updateEmployeer",employeer); session.commit() ; } finally { session.close(); } }

改成以接口编程的方式：

	/**
	 * 更改
	 */
	public static void updateEmployeer(Employeer employeer){
		SqlSession session = null;
		try {
			session = sqlSessionFactory.openSession(); 
			EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
			employeerMapper.updateEmployeer(employeer);
            session.commit() ;  		
		} finally {
			session.close();
		}
		
	}

这是一个完整的测试：

package com.mucfc.test;

import java.io.IOException;
import java.io.Reader;

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 com.mucfc.mapper.EmployeerMapper;
import com.mucfc.model.Employeer;

public class MybatisTest {
	private static SqlSessionFactory sqlSessionFactory;
	private static Reader reader;
	static {
		try {
			reader = Resources.getResourceAsReader("mybatis-config.xml");
			sqlSessionFactory = new SqlSessionFactoryBuilder().build(reader);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}

	/**
	 * 查找
	 */
	public static void findEmployeerById(int id) {
		SqlSession session = null;
		try {
			session = sqlSessionFactory.openSession();
			EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
			Employeer employeer=employeerMapper.findEmployeerByID(id);
			if (employeer == null)
				System.out.println("null");
			else
				System.out.println(employeer);
		} finally {
			session.close();
		}
	}
	/**
	 * 增加
	 */
	public static void addEmployeer(Employeer employeer){
		SqlSession session = null;
		try {
			session = sqlSessionFactory.openSession();
			EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
			employeerMapper.addEmployeer(employeer);
            session.commit() ;  		
		} finally {
			session.close();
		}
		
	}
	/**
	 * 删除
	 * 
	 */
	public static void deleteEmployeer(int id){
		SqlSession session = null;
		try {
			session = sqlSessionFactory.openSession();
			EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
			employeerMapper.deleteEmployeer(id);
            session.commit() ;  		
		} finally {
			session.close();
		}
	}
	/**
	 * 更改
	 */
	public static void updateEmployeer(Employeer employeer){
		SqlSession session = null;
		try {
			session = sqlSessionFactory.openSession(); 
			EmployeerMapper employeerMapper=session.getMapper(EmployeerMapper.class);
			employeerMapper.updateEmployeer(employeer);
            session.commit() ;  		
		} finally {
			session.close();
		}
		
	}

	public static void main(String[] args) {							
		Employeer employeer1=new Employeer();
		employeer1.setEmployeer_name("李四");
		employeer1.setEmployeer_age(23);
		employeer1.setEmployeer_department("产品一部");
		employeer1.setEmployeer_worktype("开发工程师");
		
		Employeer employeer2=new Employeer();

Mybatis接口编程方式实现增删改查(四)