整理基于SpringBoot的RestFul增删改查接口

挺久没有时间整理下最近学的东西了，现在整理下吧，哈哈。下面我来写出代码

1.在数据库上新建一张student_info表

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

-- ----------------------------
-- Table structure for student_info
-- ----------------------------
DROP TABLE IF EXISTS `student_info`;
CREATE TABLE `student_info` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(200) COLLATE utf8_bin DEFAULT NULL,
  `sex` varchar(200) COLLATE utf8_bin DEFAULT NULL,
  `major` varchar(100) COLLATE utf8_bin DEFAULT NULL,
  `height` varchar(100) COLLATE utf8_bin DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=564458 DEFAULT CHARSET=utf8 COLLATE=utf8_bin;

并且插入两条数据吧

INSERT INTO `student_info` VALUES (11, '达达', '男', '软件工程', '178');
INSERT INTO `student_info` VALUES (18, '增删改查', '男', '网络工程', '188');
COMMIT;
SET FOREIGN_KEY_CHECKS = 1;

2.运行成功后，student_info表就创建好了

图片.png

3.接下来我们在搭建好的SpringBoot中，各自层下写代码，首先写Entity层吧

package com.yoona.entity;

import lombok.Data;
/**
 * 学生Entity层
 * @author YoonaDa
 * @version 2018-10-17
 * eg.使用lombok省略get，set等方法
 */

@Data
public class Student {

    private int id;
    private String name;
    private String sex;
    private String major;
    private String height;


}

这里，我应用了lombok，@Data用于省略下get、set等方法，大家可以通过在pom.xml中添加以下代码

        
        
            org.projectlombok
            lombok
            1.16.10
        

4.StudentMapper.xml的代码

    
    
    
        
        
        
        
        
    
    
    
        select
        id,
        name,
        sex,
        major,
        height
        from
        student_info
    

    
        select
        *
        from
        student_info
        where
        id=#{id}
    
    
      delete from student_info where id=#{id}
    

    
        insert into
            student_info(id,name,sex,major,height)
        values
            (#{id},#{name},#{sex},#{major},#{height})
    
    
    
        update student_info a set
        a.name=#{name},
        a.sex=#{sex},
        a.major=#{major},
        a.height=#{height}
        where a.id=#{id}
    

5.dao层的代码如下

package com.yoona.dao;

import com.yoona.entity.Student;
import org.apache.ibatis.annotations.Mapper;

import java.util.List;

/**
 * 学生Dao层
 * @author YoonaDa
 * @version 2018-10-17
 */
@Mapper
public interface StudentDao {


    List findStudentById(int id);

    int delete(Student id);

    List findList(Student student);


    void insertList(Student student);

    void updateList(Student student);
}

6.Service层的代码如下

package com.yoona.service;

import com.yoona.dao.StudentDao;
import com.yoona.entity.Student;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
 * 学生service层
 * @author YoonaDa
 * @version 2018-10-17
 */
@Service
public class StudentService {

    @Autowired
    private StudentDao studentDao;

    public List findStudentById(int id){

        return studentDao.findStudentById(id);
    }

    //查出所有数据，并以List的形式返回json
    public List findList(Student student){
        return studentDao.findList(student);
    }

//    根据id删除一整条学生信息
    @Transactional(readOnly = false)
    public void delete(Student student){
        studentDao.delete(student);
    }


    @Transactional(readOnly = false)
    public void insertList(Student student){
        studentDao.insertList(student);
    }

    @Transactional(readOnly = false)
    public void updateList(Student student){
        studentDao.updateList(student);
    }

}

7.controller层代码

package com.yoona.controller;

import com.yoona.common.BaseController;
import com.yoona.common.VResponse;
import com.yoona.entity.Student;
import com.yoona.service.StudentService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * 学生Controller
 * @author YoonaDa
 * @version 2018-10-17
 */

@RestController
@RequestMapping(value = "/stu")
public class StudentController extends BaseController {
    @Autowired
    private StudentService studentService;
    /**
     * 用过ID查询信息
     * @param id
     * @return
     *
     * eg.http://localhost:8088/stu/findStudentById?id=5
     */
    @GetMapping("/findStudentById")
    public List findStudentById(int id){
        return studentService.findStudentById(id);
    }
    /**
     * 以一个List包含起来，返回的json包含在result中，显示为列表
     * @param student
     * @return
     *
     * http://127.0.0.1:8088/stu//findList
     *
     */
    @GetMapping(value = "/findList")
    public VResponse> getList(Student student){
        List list =studentService.findList(student);
        return VResponse.success(list);
    }
    /**
     * 根据id删除一条数据
     * @param student
     * @return
     */
    @PostMapping(value = "/delete")
    public VResponse