SpringBoot+mybatis+Vue实现前后端分离项目的示例
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2022-03-07 19:35:07
目录一、springboot环境搭建1、项目的数据库2、项目所需依赖3、application.yml文件4、入口类二、vue实现前后端分离1、前端页面2、springboot控制层3、mapper文...
vue前后端分离实现功能：员工的增删改（先实现数据回显之后，再进行修改）查
一、springboot环境搭建
1、项目的数据库
/* navicat premium data transfer source server : windows source server type : mysql source server version : 80022 source host : localhost:3306 source schema : ems target server type : mysql target server version : 80022 file encoding : 65001 date: 19/12/2021 16:27:43 */ set names utf8mb4; set foreign_key_checks = 0; -- ---------------------------- -- table structure for t_emp -- ---------------------------- drop table if exists `t_emp`; create table `t_emp` ( `id` int not null auto_increment, `name` varchar(20) character set utf8mb4 collate utf8mb4_0900_ai_ci not null, `salary` double not null, `age` int not null, primary key (`id`) using btree ) engine = innodb auto_increment = 8 character set = utf8mb4 collate = utf8mb4_0900_ai_ci row_format = dynamic; -- ---------------------------- -- records of t_emp -- ---------------------------- insert into `t_emp` values (2, '杨福君', 9000, 19); insert into `t_emp` values (6, '邓正武', 18000, 25); insert into `t_emp` values (8, '王恒杰', 12000, 21); insert into `t_emp` values (9, '张西', 8000, 20); set foreign_key_checks = 1;
2、项目所需依赖
<!--继承springboot的父项目 ,放在dependencies平级下-->
<parent>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-starter-parent</artifactid>
<version>2.2.5.release</version>
</parent>
<dependencies>
<!--springboot依赖-->
<dependency>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-starter</artifactid>
</dependency>
<dependency>
<groupid>org.mybatis.spring.boot</groupid>
<artifactid>mybatis-spring-boot-starter</artifactid>
<version>2.1.2</version>
</dependency>
<!--引入springboot的web支持-->
<dependency>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-starter-web</artifactid>
</dependency>
<!--mysql-->
<dependency>
<groupid>mysql</groupid>
<artifactid>mysql-connector-java</artifactid>
<version>8.0.16</version>
</dependency>
<!--数据源连接池-->
<dependency>
<groupid>com.alibaba</groupid>
<artifactid>druid</artifactid>
<version>1.1.12</version>
</dependency>
<!--引入springboot的test支持-->
<dependency>
<groupid>org.springframework.boot</groupid>
<artifactid>spring-boot-starter-test</artifactid>
</dependency>
</dependencies>
</project>
3、application.yml文件
server:
port: 8080
servlet:
context-path: /ems
spring:
datasource:
type: com.alibaba.druid.pool.druiddatasource #数据源类型
driver-class-name: com.mysql.cj.jdbc.driver #加载驱动
url: jdbc:mysql://localhost:3306/ems?usessl=false&servertimezone=utc
username: root
password: root
mybatis:
mapper-locations: classpath:com/tjcu/mapper/*mapper.xml #指定mapper文件所在的位置,其中classpath必须和mapper-locations分开
type-aliases-package: com.tjcu.entity
4、入口类
@springbootapplication
@mapperscan("com.tjcu.dao")
public class empapplication {
public static void main(string[] args) {
springapplication.run(empapplication.class,args);
}
}
二、vue实现前后端分离
1、前端页面
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>emp manager</title>
</head>
<body>
<div id="app">
<center><h2>{{msg}}</h2></center>
<hr/>
<center>
<form>
编号：<input type="text" v-model="emp.id" placeholder="添加默认为null"/><br/>
名称：<input type="text" v-model="emp.name"/><br/>
薪资：<input type="text" v-model="emp.salary"/><br/>
年龄：<input type="text" v-model="emp.age"/><br/>
<input type="button" value="添加/修改" @click="add()"/>
<br/>
<br/>
<br/>
</form>
</center>
<table border="1" cellspacing="0" cellpadding="0" width="80%" align="center">
<tr>
<td>编号</td>
<td>名称</td>
<td>年龄</td>
<td>薪资</td>
<td>操作</td>
</tr>
<tr v-for="(emp,index) in emps">
<td>{{index+1}}</td>
<td>{{emp.name}}</td>
<td>{{emp.salary}}</td>
<td>{{emp.age}}</td>
<td><input type="button" value="删除" @click="del(emp.id)">
<input type="button" value="修改" @click="queryone(emp.id)"></td>
</tr>
</table>
</div>
</body>
</html>
<script src="js/vue-min.js"></script>
<script src="js/axios.min.js"></script>
<script>
new vue({
el:"#app" , //指定vue实例的作用范围
data:{ //定义数据
msg:"ems员工管理系统",
emps:[],
emp:{}
},
methods:{ //定义函数
queryall(){
var vue=this;
axios.get("http://localhost:8080/ems/emp/queryall")
.then(function (response) {
console.log(response.data);
vue.emps = response.data;
}).catch(function (error) {
console.log(error.data);
})
},
add(){
var vue=this;
console.log(vue.emp);
axios.post("http://localhost:8080/ems/emp/add",vue.emp)
.then(function () {
vue.queryall();
console.log("添加成功");
vue.emp={};
})
.catch(function () {
console.log("添加失败")
})
},
queryone(id){
if(window.confirm("你确定修改吗？")){
var vue=this;
axios.get("http://localhost:8080/ems/emp/queryone?id="+id)
.then(function (response) {
//将查询的结果嫁给vue中的emp进行管理 根据双向绑定原理 emp数据变化 会影响页面 从而在表单中展示当前员工
vue.emp=response.data;
console.log("查询成功");
}).catch(function () {
console.log("查询失败")
})
}
},
del(id){
if(window.confirm("你确定删除吗？")){
var vue=this;
axios.get("http://localhost:8080/ems/emp/delete?id="+id)
.then(function () {
vue.queryall();
console.log("删除成功")
}).catch(function () {
console.log("删除失败")
})
}
}
},
created(){
this.queryall();
}
})
</script>
2、springboot控制层
/**
* @author 王恒杰
* @date 2021/12/17 15:52
* @description:
*/
@controller
@crossorigin
@responsebody
public class empcontroller {
@autowired
private empservice empservice;
@requestmapping("/emp/queryall")
public list<emp> queryall(){
list<emp> emps = empservice.showemp();
return emps;
}
/**
* 删除
* @param id
*/
@requestmapping("/emp/delete")
public void delete(integer id){
empservice.deletebyid(id);
}
@requestmapping("/emp/add")
public void add(@requestbody emp emp){
if(emp.getid()!=0){
empservice.updateemp(emp);
}else {
emp.setid(null);
empservice.insertemp(emp);
}
}
@requestmapping("/emp/queryone")
public emp query(integer id){
emp emp = empservice.selectempbyid(id);
return emp;
}
}
3、mapper文件
<mapper namespace="com.tjcu.dao.empdao">
<insert id="insertemp">
insert into t_emp
values (#{id}, #{name}, #{salary}, #{age})
</insert>
<select id="showemp" resulttype="emp">
select *
from t_emp
</select>
<update id="updateemp">
update t_emp
<set>
<if test="name!=null">
name=#{name},
</if>
<if test="salary!=null">
salary=#{salary},
</if>
<if test="age!=null">
age=#{age}
</if>
</set>
where id=#{id}
</update>
<delete id="deletebyid">
delete from t_emp where id=#{id}
</delete>
<select id="selectempbyid" resulttype="emp">
select *
from t_emp where id=#{id}
</select>
</mapper>
4、项目完整源代码
gitee开源：https://gitee.com/wanghengjie563135/springboot_mybatis_vue.git
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