1、查看不同MyBatis版本整合Spring时使用的适配包;
http://www.mybatis.org/spring/
2、下载整合适配包
https://github.com/mybatis/spring/releases
• 3、官方整合示例,jpetstore
https://github.com/mybatis/jpetstore-6
ssm
1.
①.导入需要的Spring的jar包
②.导入MyBatis的包
以及与数据库驱动包
③.最后导入MyBatis与Spring整合的适配包
2.写各个部分的配置文件
①、MyBatis的配置文件 JavaEE——Mybatis(12)--MyBatis与Spring整合--MyBatis相关配置文件
②、Spring的配置文件 管理所有业务逻辑组件
③、SpringMVC配置文件 只是控制网站跳转逻辑 JavaEE——Mybatis(13)--MyBatis与Spring整合--Spring SpringMVC相关配置文件 及Spring整合MyBatis
测试:
1、controller控制器 控制转发逻辑
StudentController
package mybatis.controller; import mybatis.bean.Student; import mybatis.service.StudentService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import java.util.List; import java.util.Map; @Controller public class StudentController { @Autowired StudentService studentService; @RequestMapping("/getAllStudents") public String students(Map<String, Object>map){ List<Student> students = studentService.getAllStudents(); map.put("students", students); return "list"; } @RequestMapping("/getById") public String students1(Map<String, Object>map, Integer id){ Student student = studentService.getStudentById( id ); map.put("student", student); return "list1"; } }
2.StudentService 来执行增删改查
package mybatis.service; import mybatis.bean.Student; import mybatis.dao.StudentMapper; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import java.util.List; @Service("studentService") public class StudentService { @Autowired StudentMapper studentMapper; public List<Student> getAllStudents(){ return studentMapper.getStudents(); } public Student getStudentById(Integer id){ return studentMapper.getById( id ); } }
3.StudentMapper接口和StudentMapper.xml用来真正执行增删改查
StudentMapper接口
package mybatis.dao; import mybatis.bean.Student; import java.util.List; public interface StudentMapper { public Student getById(Integer id); public List<Student> getStudents(); }
StudentMapper.xml
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="mybatis.dao.StudentMapper"> <!--public Student getById(Integer id);--> <select id="getById" resultType="mybatis.bean.Student" parameterType="java.lang.Integer"> SELECT * FROM student WHERE id=#{id} </select> <!--public List<Student> getStudents();--> <select id="getStudents" resultType="mybatis.bean.Student"> SELECT * FROM student </select> </mapper>
list.jsp
<%-- Created by IntelliJ IDEA. User: Skye Date: 2018/2/9 Time: 15:17 To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <html> <head> <title>员工列表</title> </head> <body> <table> <tr> <td>id</td> <td>name</td> <td>sex</td> <td>age</td> </tr> <c:forEach items="${students}" var="stu"> <tr> <td>${stu.id}</td> <td>${stu.name}</td> <td>${stu.sex}</td> <td>${stu.age}</td> </tr> </c:forEach> </table> </body> </html>