如何實(shí)現(xiàn)Javaweb mybatis接口開(kāi)發(fā)

<&#63;xml version="1.0" encoding="UTF-8"&#63;>
<!DOCTYPE mapper
  PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
  "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<!-- 門店表的映射文件  namespace值為對(duì)應(yīng)接口的全路徑 -->
<mapper namespace="com.tedu.dao.DoorMapper">
  <!-- 1.查詢所有門店信息，id值為對(duì)應(yīng)接口中方法的名字
    resultType指定將查詢的結(jié)果封裝到哪個(gè)pojo對(duì)象中
   -->
  <select id="findAll" resultType="com.tedu.pojo.Door">
    select * from tb_door
  </select>
</mapper>

package com.tedu.dao;

import java.util.List;
import com.tedu.pojo.Door;
/**
 * DoorMapper接口 
 * 聲明增刪改查方法,對(duì)門店信息進(jìn)行操作
 */
public interface DoorMapper {
  /**
   *接口由我們開(kāi)發(fā)人員負(fù)責(zé)提供,但接口的實(shí)現(xiàn)類(子類)由框架負(fù)責(zé)提供
   *如果不整合mybatis和spring框架，接口的子類實(shí)例也是由mybatis負(fù)責(zé)創(chuàng)建
   * 如果整合了mybatis和spring框架，接口的子類實(shí)例將會(huì)由spring容器負(fù)責(zé)創(chuàng)建
   */

//方法名必須肯mapper文件中的id值一致
  public List<Door> findAll();
}

package com.tedu;

import java.io.IOException;
import java.io.InputStream;
import java.util.List;

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 org.apache.jasper.tagplugins.jstl.core.ForEach;
import org.junit.Test;

import com.tedu.dao.DoorMapper;
import com.tedu.pojo.Door;


/**
 * mybatis的入門案例: 查詢yonghedb.emp表中的所有員工信息
 */
public class TestMybatis01 {
	
	/* 練習(xí)1: 查詢emp中的所有員工信息 */
	@Test
	public void testFindAll01() throws Exception {
		//1.讀取mybatis核心配置文件(mybatis-config.xml),Resources是mybatis提供的工具類
		InputStream in = Resources.getResourceAsStream("mybatis/mybatis-config.xml");
		//2.通過(guò)配置信息獲取SqlSession工廠對(duì)象
		SqlSessionFactory fac = new SqlSessionFactoryBuilder().build( in );
		//3.獲取SQLSession對(duì)象(打開(kāi)與數(shù)據(jù)庫(kù)的連接)
		SqlSession session = fac.openSession();
		//4.獲取Doormapper子類實(shí)例
		DoorMapper doormapper = session.getMapper(DoorMapper.class);
		List<Door> lis = doormapper.findAll();
		//5.輸出結(jié)果
		for (Door door : lis) {
			System.out.println(door);
		}	
	}
}