springboot+mp完成简单案例

目录

1.框架搭建

2.前端搭建

3.后端编写

---

需求：完成简单的连表条件查询以及添加即可

 

1.框架搭建

1.创建springboot项目

2.相关依赖

 
        
            org.springframework.boot
            spring-boot-starter-web
        
        
        
            mysql
            mysql-connector-java
            runtime
        
        
        
            org.projectlombok
            lombok
            true
        
        
        
            com.baomidou
            mybatis-plus-boot-starter
            3.5.1
        
        
            org.springframework.boot
            spring-boot-starter-test
            test
        

3.配置文件

#数据源信息
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
spring.datasource.url=jdbc:mysql://localhost:3306/db_saas_fbms?serverTimezone=Asia/Shanghai&characterEncoding=UTF8
spring.datasource.username=root
spring.datasource.password=123456789
#指定映射文件的路径--链表操作
mybatis-plus.mapper-locations=classpath:/mapper/*.xml
#sql日志
mybatis-plus.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl

4.数据库：

/*
 Navicat Premium Data Transfer

 Source Server         : wqg1
 Source Server Type    : MySQL
 Source Server Version : 50731
 Source Host           : localhost:3306
 Source Schema         : db_saas_fbms

 Target Server Type    : MySQL
 Target Server Version : 50731
 File Encoding         : 65001

 Date: 25/08/2023 10:20:37
*/

SET NAMES utf8mb4;
SET FOREIGN_KEY_CHECKS = 0;

-- ----------------------------
-- Table structure for ums_agent
-- ----------------------------
DROP TABLE IF EXISTS `ums_agent`;
CREATE TABLE `ums_agent`  (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '编号',
  `username` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT '用户名',
  `levelid` int(10) NOT NULL COMMENT '等级编号(外键关联代理商等级表)',
  `nickname` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT '昵称',
  `phonenum` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT '电话',
  `status` int(10) NULL DEFAULT NULL COMMENT '账号状态(1：正常，2：禁用)',
  `create_time` date NULL DEFAULT NULL COMMENT '创建时间',
  `icon` varchar(255) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT '头像路径',
  `growth` int(10) NULL DEFAULT NULL COMMENT '成长值',
  `integration` int(10) NULL DEFAULT NULL COMMENT '积分',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 3 CHARACTER SET = utf8 COLLATE = utf8_bin ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of ums_agent
-- ----------------------------
INSERT INTO `ums_agent` VALUES (1, 'admin01', 1, '代理01', '15346342611', 1, '2023-08-25', 'www.baidu.com', 100, 10);
INSERT INTO `ums_agent` VALUES (2, 'admin02', 2, '代理02', '15346342622', 1, '2023-08-25', 'www.baidu.com', 100, 10);

-- ----------------------------
-- Table structure for ums_agent_level
-- ----------------------------
DROP TABLE IF EXISTS `ums_agent_level`;
CREATE TABLE `ums_agent_level`  (
  `id` int(11) NOT NULL AUTO_INCREMENT COMMENT '编号',
  `name` varchar(30) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT '等级名称',
  `note` varchar(200) CHARACTER SET utf8 COLLATE utf8_bin NULL DEFAULT NULL COMMENT '描述说明',
  `growth_point` int(10) NULL DEFAULT NULL COMMENT '等级成长值临界点',
  `priviledge_birthday` int(10) NULL DEFAULT NULL COMMENT '是否有生日特权',
  `addtime` date NULL DEFAULT NULL COMMENT '添加时间',
  PRIMARY KEY (`id`) USING BTREE
) ENGINE = InnoDB AUTO_INCREMENT = 5 CHARACTER SET = utf8 COLLATE = utf8_bin ROW_FORMAT = Dynamic;

-- ----------------------------
-- Records of ums_agent_level
-- ----------------------------
INSERT INTO `ums_agent_level` VALUES (1, '白银', '等级1', 1, NULL, '2023-08-25');
INSERT INTO `ums_agent_level` VALUES (2, '黄金', '等级2', 1, NULL, '2023-08-25');
INSERT INTO `ums_agent_level` VALUES (3, '铂金', '等级3', 1, NULL, '2023-08-25');
INSERT INTO `ums_agent_level` VALUES (4, '王者', '等级4', 1, NULL, '2023-08-25');

SET FOREIGN_KEY_CHECKS = 1;

5.实体类

@Data
@TableName(value ="ums_agent")
public class Agent implements Serializable {

    /**
    * 编号
    */
    @TableId(type = IdType.AUTO)
    private Integer id;
    /**
    * 用户名
    */
    private String username;
    /**
    * 等级编号(外键关联代理商等级表)
    */
    private Integer levelid;
    /**
    * 昵称
    */
    private String nickname;
    /**
    * 电话
    */
    private String phonenum;
    /**
    * 账号状态(1：正常，2：禁用)
    */
    private Integer status;
    /**
    * 创建时间
    */
    private Date createTime  ;
    /**
    * 头像路径
    */
    private String icon ;
    /**
    * 成长值
    */
    private Integer growth;
    /**
    * 积分
    */
    private Integer integration;
    @TableField(exist = false)
    private AgentLevel agentLevel;

}

@Data
@TableName(value ="ums_agent_level")
public class AgentLevel implements Serializable {

    /**
    * 编号
    */
    @TableId(type = IdType.AUTO)
    private Integer id;
    /**
    * 等级名称
    */
    private String name;
    /**
    * 描述说明
    */
    private String note;
    /**
    * 等级成长值临界点
    */
    private Integer growthPoint;
    /**
    * 是否有生日特权
    */
    private Integer priviledgeBirthday;
    /**
    * 添加时间
    */
    private Date addtime;


}

2.前端搭建

  
  
  
  
  
  
  




  

    
    查询
    添加
  

  
  

    
      
      
      
      
      
      
      
      
      
        
      
      

      
      
      
    

    
    
      
        
          
        
        
        
          
            
            
          
        
        
          
        
        
          
        
        
          
        
        
          
        
        
          正常
          禁用
        
      
      

        取 消
        确 定
      
    
  

3.后端编写

1.设置统一返回类型

@NoArgsConstructor
@AllArgsConstructor
@Data
public class Result {
    //表示状态码
    private Integer code;
    //消息提示
    private String msg;
    //响应的数据内容
    private Object data;
}

2.controller层

@RestController
@RequestMapping("/agent")
public class AgentController {
    @Autowired
    private AgentService agentService;

    /**
     * 查询所有
     * @param input
     * @return
     */
    @PostMapping("/query")
    public Result> agentList(@RequestParam String input) {
        List agentList = agentService.agentList(input);
        return new Result<>(200,"成功",agentList);
    }

    /**
     * 添加
     * @param agent
     * @return
     */
    @PostMapping("/insert")
    public Result insert(@RequestBody Agent agent){
        agent.setIcon("www.baidu.com");
        Date date = new Date();
        agent.setCreateTime(date);
        boolean save = agentService.save(agent);
        return new Result<>(200,"成功",null);
    }

}

@RestController
@RequestMapping("/agentLevel")
public class AgentLevelController {
    @Autowired
    private AgentLevelService agentLevelService;

    /**
     * 查询等级
     * @return
     */
    @GetMapping("/query")
    public Result select(){
        return agentLevelService.select();
    }
}

3.service层

public interface AgentService extends IService {

    /**
     * 查询所有
     * @param input
     * @return
     */
    List agentList(String input);
}

public interface AgentLevelService {
    /**
     * 查询等级
     * @return
     */
    Result select();
}

5.serviceImpl层

@Service
public class AgentServiceImpl extends ServiceImpl implements AgentService {

    @Autowired
    private AgentDao agentDao;

    /**
     * 查询所有
     * @param input
     * @return
     */
    @Override
    public List agentList(String input) {
        return agentDao.agentList(input);
    }
}

@Service
public class AgentLevelServiceImpl implements AgentLevelService {


    @Autowired
    private AgentLevelDao agentLevelDao;

    /**
     * 查询等级
     * @return
     */
    @Override
    public Result select() {
        List agentLevels = agentLevelDao.selectList(null);

        return new Result<>(200,"查询成功",agentLevels);
    }
}

6.dao层

@Mapper
public interface AgentDao extends BaseMapper {
    /**
     * 查询所有
     * @param input
     * @return
     */
    List agentList(String input);
}

@Mapper
public interface AgentLevelDao extends BaseMapper< AgentLevel> {
}

7.

    
    
        
        
            
        
    
    
        SELECT
            a.id,
            a.username,
            a.levelid,
            a.nickname,
            a.phonenum,
            a.`status`,
            a.create_time,
            a.icon,
            a.growth,
            a.integration,
            e.id,
            e.`name`,
            e.note,
            e.priviledge_birthday,
            e.growth_point,
            e.addtime
        FROM
            ums_agent AS a
                INNER JOIN
            ums_agent_level AS e
            ON
                a.levelid = e.id
        
            
                a.username like concat('%',#{input},'%')
                or
                a.phonenum like concat('%',#{input},'%')
            
        
    

完成