JavaWeb Day10 案例 准备工作

目录​​​​​​​

一、需求说明

二、环境搭建

（一）数据库

（二）后端

①controller层

1.DeptController.java

2.EmpController.java

②mapper层

1.DeptMapper.java

2.EmpMapper.java

③pojo层

1.Dept.java

2.Emp.java

3.Result.java

④service层

（1）接口

1.DeptService接口

2.EmpService接口

（2）实现类

1.DeptServiceImpl.java

2.EmpServiceImpl.java

⑤application.properties

⑥pom.xml

三、开发规范

①风格 

②统一响应结果

---

一、需求说明

二、环境搭建

（一）数据库

-- 部门管理
create table dept(id int unsigned primary key auto_increment comment '主键ID',name varchar(10) not null unique comment '部门名称',create_time datetime not null comment '创建时间',update_time datetime not null comment '修改时间'
) comment '部门表';insert into dept (id, name, create_time, update_time) values(1,'学工部',now(),now()),(2,'教研部',now(),now()),(3,'咨询部',now(),now()), (4,'就业部',now(),now()),(5,'人事部',now(),now());-- 员工管理
create table emp (id int unsigned primary key auto_increment comment 'ID',username varchar(20) not null unique comment '用户名',password varchar(32) default '123456' comment '密码',name varchar(10) not null comment '姓名',gender tinyint unsigned not null comment '性别, 说明: 1 男, 2 女',image varchar(300) comment '图像',job tinyint unsigned comment '职位, 说明: 1 班主任,2 讲师, 3 学工主管, 4 教研主管, 5 咨询师',entrydate date comment '入职时间',dept_id int unsigned comment '部门ID',create_time datetime not null comment '创建时间',update_time datetime not null comment '修改时间'
) comment '员工表';INSERT INTO emp(id, username, password, name, gender, image, job, entrydate,dept_id, create_time, update_time) VALUES(1,'jinyong','123456','金庸',1,'1.jpg',4,'2000-01-01',2,now(),now()),(2,'zhangwuji','123456','张无忌',1,'2.jpg',2,'2015-01-01',2,now(),now()),(3,'yangxiao','123456','杨逍',1,'3.jpg',2,'2008-05-01',2,now(),now()),(4,'weiyixiao','123456','韦一笑',1,'4.jpg',2,'2007-01-01',2,now(),now()),(5,'changyuchun','123456','常遇春',1,'5.jpg',2,'2012-12-05',2,now(),now()),(6,'xiaozhao','123456','小昭',2,'6.jpg',3,'2013-09-05',1,now(),now()),(7,'jixiaofu','123456','纪晓芙',2,'7.jpg',1,'2005-08-01',1,now(),now()),(8,'zhouzhiruo','123456','周芷若',2,'8.jpg',1,'2014-11-09',1,now(),now()),(9,'dingminjun','123456','丁敏君',2,'9.jpg',1,'2011-03-11',1,now(),now()),(10,'zhaomin','123456','赵敏',2,'10.jpg',1,'2013-09-05',1,now(),now()),(11,'luzhangke','123456','鹿杖客',1,'11.jpg',5,'2007-02-01',3,now(),now()),(12,'hebiweng','123456','鹤笔翁',1,'12.jpg',5,'2008-08-18',3,now(),now()),(13,'fangdongbai','123456','方东白',1,'13.jpg',5,'2012-11-01',3,now(),now()),(14,'zhangsanfeng','123456','张三丰',1,'14.jpg',2,'2002-08-01',2,now(),now()),(15,'yulianzhou','123456','俞莲舟',1,'15.jpg',2,'2011-05-01',2,now(),now()),(16,'songyuanqiao','123456','宋远桥',1,'16.jpg',2,'2010-01-01',2,now(),now()),(17,'chenyouliang','123456','陈友谅',1,'17.jpg',NULL,'2015-03-21',NULL,now(),now());

（二）后端

①controller层

1.DeptController.java

package com.itheima.controller;import org.springframework.web.bind.annotation.RestController;@RestController
public class DeptController {
}

2.EmpController.java

package com.itheima.controller;import org.springframework.web.bind.annotation.RestController;@RestController
public class EmpController {
}

②mapper层

1.DeptMapper.java

package com.itheima.mapper;import org.apache.ibatis.annotations.Mapper;@Mapper
public class DeptMapper {
}

2.EmpMapper.java

package com.itheima.mapper;import org.apache.ibatis.annotations.Mapper;@Mapper
public class EmpMapper {
}

③pojo层

1.Dept.java

package com.itheima.pojo;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.time.LocalDateTime;/*** 部门实体类*/
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Dept {private Integer id; //IDprivate String name; //部门名称private LocalDateTime createTime; //创建时间private LocalDateTime updateTime; //修改时间
}

2.Emp.java

package com.itheima.pojo;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;
import java.time.LocalDate;
import java.time.LocalDateTime;/*** 员工实体类*/
@Data
@NoArgsConstructor
@AllArgsConstructor
public class Emp {private Integer id; //IDprivate String username; //用户名private String password; //密码private String name; //姓名private Short gender; //性别 , 1 男, 2 女private String image; //图像urlprivate Short job; //职位 , 1 班主任 , 2 讲师 , 3 学工主管 , 4 教研主管 , 5 咨询师private LocalDate entrydate; //入职日期private Integer deptId; //部门IDprivate LocalDateTime createTime; //创建时间private LocalDateTime updateTime; //修改时间
}

3.Result.java

package com.itheima.pojo;import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;@Data
@NoArgsConstructor
@AllArgsConstructor
public class Result {private Integer code;//响应码，1 代表成功; 0 代表失败private String msg;  //响应信息 描述字符串private Object data; //返回的数据//增删改 成功响应public static Result success(){return new Result(1,"success",null);}//查询 成功响应public static Result success(Object data){return new Result(1,"success",data);}//失败响应public static Result error(String msg){return new Result(0,msg,null);}
}

④service层

（1）接口

1.DeptService接口

package com.itheima.service;public interface DeptService {
}

2.EmpService接口

package com.itheima.service;
public interface EmpService {
}

（2）实现类

1.DeptServiceImpl.java

package com.itheima.service.impl;
import com.itheima.service.DeptService;
import org.springframework.stereotype.Service;@Service
public class DeptServiceImpl implements DeptService{
}

2.EmpServiceImpl.java

package com.itheima.service.impl;import com.itheima.service.EmpService;
import org.springframework.stereotype.Service;
@Service
public class EmpServiceImpl implements EmpService {
}

⑤application.properties

#驱动类名称
spring.datasource.driver-class-name=com.mysql.cj.jdbc.Driver
#数据库连接的url
spring.datasource.url=jdbc:mysql://localhost:3306/mybatis
#连接数据库的用户名
spring.datasource.username=root
#连接数据库的密码
spring.datasource.password=123456#配置mybatis的日志, 指定输出到控制台
mybatis.configuration.log-impl=org.apache.ibatis.logging.stdout.StdOutImpl#开启mybatis的驼峰命名自动映射开关 a_column ------> aCloumn
mybatis.configuration.map-underscore-to-camel-case=true

⑥pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd"><modelVersion>4.0.0</modelVersion><parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.7.17</version><relativePath/> <!-- lookup parent from repository --></parent><groupId>com.itheima</groupId><artifactId>tlias-web-management</artifactId><version>0.0.1-SNAPSHOT</version><packaging>war</packaging><name>tlias-web-management</name><description>tlias-web-management</description><properties><java.version>11</java.version></properties><dependencies>
<!--        web开发依赖--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency>
<!--        mybatis起步依赖--><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter</artifactId><version>2.3.1</version></dependency>
<!--mysql驱动--><dependency><groupId>com.mysql</groupId><artifactId>mysql-connector-j</artifactId><scope>runtime</scope></dependency>
<!--        lombok--><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency>
<!--        springboot单元测试--><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-tomcat</artifactId><scope>provided</scope></dependency><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency><dependency><groupId>org.mybatis.spring.boot</groupId><artifactId>mybatis-spring-boot-starter-test</artifactId><version>2.3.1</version><scope>test</scope></dependency></dependencies><build><plugins><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><configuration><image><builder>paketobuildpacks/builder-jammy-base:latest</builder></image><excludes><exclude><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId></exclude></excludes></configuration></plugin></plugins></build></project>

三、开发规范

①风格 

②统一响应结果

四、开发流程 

查看页面原型，明确需求（前端和产品经理提供）  =》 根据页面原型和需求定义表结构和接口文档  =》 阅读接口文档  =》 思路分析  =》 接口开发  =》 接口测试（postman）  =》 前后端联调