SpringBoot整合Mybatis连接MS SQL server数据库

一、配置SQL server

1. 打开Microsoft SQL Server Management Studio 18
   
2. 点开：安全性-登录名-找到需要操作的数据库名称，右键点击选择属性
   
3. 选择状态，按图中操作
   
4. 桌面右键点击我的电脑，选择管理
   
5. 依次展开服务和应用程序—SQL Server配置管理器—SQL Server网络配置—MSSQLSERVER的协议，然后右键点击TCP/IP选择启用
   
6. 右键点击TCP/IP选择属性、选择IP地址，将所有的IP地址改为127.0.0.1，将TCP端口号改为1433，将所有已启动改为是，如图即可

7. 在Microsoft SQL Server Management Studio 18中重启服务

二、在IDEA中使用SpringBoot整合Mybatis连接SQL server数据库

1.新建springboot项目




2. 建包

3. 编写配置文件application.yml

spring:
  datasource:
    driver-class-name: com.microsoft.sqlserver.jdbc.SQLServerDriver
    url: jdbc:sqlserver://localhost:1433;database=new_admin
    username: sa
    password: 123456

mybatis:
  type-aliases-package: com.test3.mapper
  mapper-locations: classpath:mapper/*Mapper.xml

4. 配置启动类的扫描包
   
   5.添加测试类
   1. controller

package com.test3.controller;


import com.test3.server.StudentServer;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class StudentController {

    @Autowired
    private StudentServer studentServer;

    @RequestMapping("/stu")
    @ResponseBody
    public Object selectStudentAll(){

        return studentServer.studentAll();
    }

}

2. server层

package com.test3.server;

import java.util.List;
import java.util.Map;

public interface StudentServer {

    List<Map> studentAll();
}

package com.test3.server.Impl;

import com.test3.mapper.StudentMapper;
import com.test3.server.StudentServer;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;

@Service
public class StudentServerImpl implements StudentServer {

    @Autowired
    private StudentMapper studentMapper;

    @Override
    public List<Map> studentAll() {
        return studentMapper.studentAll();
    }
}

3. mapper层

package com.test3.mapper;

import org.apache.ibatis.annotations.Mapper;

import java.util.List;
import java.util.Map;

public interface StudentMapper {
    List<Map> studentAll();
}

4. resources包下的mapper文件夹下的xml文件对应Java包下的mapper

DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.test3.mapper.StudentMapper">
    
    <select id="studentAll" resultType="java.util.LinkedHashMap">
        select * from student
    select>
mapper>