1、maven继承spring-boot
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<parent> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-parent</artifactid> <version>2.0.6.release</version> <relativepath/> <!-- lookup parent from repository --></parent> |
2、指定jdk版本和字符集
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<properties> <project.build.sourceencoding>utf-8</project.build.sourceencoding> <project.reporting.outputencoding>utf-8</project.reporting.outputencoding> <java.version>1.8</java.version></properties> |
3、添加依赖
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<dependencies> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-web</artifactid> </dependency> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-test</artifactid> <scope>test</scope> </dependency> <dependency> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-starter-data-jpa</artifactid> </dependency> <dependency> <groupid>mysql</groupid> <artifactid>mysql-connector-java</artifactid> </dependency> <dependency> <groupid>com.alibaba</groupid> <artifactid>druid</artifactid> <version>1.1.10</version> </dependency> <dependency> <groupid>org.projectlombok</groupid> <artifactid>lombok</artifactid> </dependency> <dependency> <groupid>org.apache.commons</groupid> <artifactid>commons-text</artifactid> <version>1.2</version> </dependency></dependencies> |
4、添加插件
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<plugin> <groupid>org.springframework.boot</groupid> <artifactid>spring-boot-maven-plugin</artifactid></plugin> |
5、配置src/main/resources/application.yml
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spring: datasource: driver-class-name: com.mysql.jdbc.driver url: jdbc:mysql://localhost:3306/react username: root password: 123456 type: com.alibaba.druid.pool.druiddatasource jpa: show-sql: true hibernate: ddl-auto: update database: mysql database-platform: org.hibernate.dialect.mysql5innodbdialect |
6、编写启动类
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package com.example.react;import org.springframework.boot.springapplication;import org.springframework.boot.autoconfigure.springbootapplication;@springbootapplicationpublic class reactapplication { public static void main(string[] args) { springapplication.run(reactapplication.class, args); }} |
7、持久化对象类
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package com.example.react.model;import lombok.*;import lombok.experimental.accessors;import javax.persistence.*;/** * 用户类 */@table(name = "t_user")@entity@setter@getter@noargsconstructor@allargsconstructor@tostring@accessors(chain = true)public class user { /** * 用户id */ @id @generatedvalue(strategy = generationtype.identity) private long id; /** * 用户名 */ private string name;} |
8、持久化操作接口
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package com.example.react.dao;import com.example.react.model.user;import org.springframework.data.jpa.repository.jparepository;import org.springframework.stereotype.repository;@repositorypublic interface userdao extends jparepository<user,long> {} |
9、控制层
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package com.example.react.controller;import com.example.react.model.user;import com.example.react.dao.userdao;import org.springframework.beans.factory.annotation.autowired;import org.springframework.web.bind.annotation.*;import java.util.list;@restcontroller@requestmapping("/user")public class usercontroller { @autowired private userdao userdao; /** * 查询所有用户 * @return */ @getmapping public list<user> all(){ return this.userdao.findall(); } /** * 保存用户 * 新增或更新 * @param user * @return */ @postmapping public object save(@requestbody user user){ this.userdao.save(user); return true; } /** * 根据id删除用户 * @param id * @return */ @deletemapping("/{id}") public object delete(@pathvariable long id){ this.userdao.deletebyid(id); return true; }} |
10、启动后台项目
11、在项目根路径创建前端项目，使用create-react-app
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npx create-react-app web |
给命令会在当前目录下使用create-react-app创建一个react单页项目
12、进入web目录，添加依赖库
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npm install axios bootstrap@3.3.7 --save |
13、在package.json中增加前后端交互代理
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"proxy": http://localhost:8080 |
14、删除前端项目src 目录下无用的文件，只保留index.js和app.js，并修改文件使其能够运行
目录结构
index.js
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import react from 'react';import reactdom from 'react-dom';import app from './app';reactdom.render(<app />, document.getelementbyid('root')); |
app.js
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import react, { component } from 'react';class app extends component { render() { return ( <div> </div> ); }}export default app; |
15、在index.js中引入bootstrap样式文件
注意：这里只需要引入css文件即可
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import react from 'react';import reactdom from 'react-dom';import 'bootstrap/dist/css/bootstrap.min.css';import app from './app';reactdom.render(<app />, document.getelementbyid('root')); |
16、接下来进行页面布局，这是一个简单的增删改查功能，所以只需要在一个页面编写全部功能即可，左侧为一个表格，右侧为一个表单，如下图
17、首先利用bootstrap中提供的栅格模式，将页面分为左右两栏，两栏中分别有一个panel
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render() { return ( <div classname="container-fluid" style={{margintop: '20px'}}> <div classname="row"> <div classname="col-xs-4 col-xs-offset-1"> <div classname="panel panel-default"> <div classname="panel-body"> 表格区域 </div> </div> </div> <div classname="col-xs-3 col-xs-offset-1"> <div classname="panel panel-default"> <div classname="panel-body"> 表单区域 </div> </div> </div> </div> </div> );} |
18、添加表格
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<table classname="table table-bordered"> <thead> <tr> <th>id</th> <th>用户名</th> <th>操作</th> </tr> </thead> <tbody> </tbody></table> |
19、添加表单
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<form classname="form-horizontal"> <div classname="form-group"> <label htmlfor="name" classname="col-xs-3">用户名</label> <div classname="col-xs-8"> <input type="text" id="name" classname="form-control"/> </div> </div> <div classname="form-group"> <div classname="col-sm-offset-2 col-sm-10"> <button classname="btn btn-default">提交</button> </div> </div></form> |
20、初始化 state
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constructor(props) { super(props); this.state = { id:'', name:'', list:[] }} |
21、实现查询函数，并在app组件挂载渲染完成后执行查询函数
引入axios
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import axios from 'axios'; |
声明查询函数
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query = () =>{ axios.get('/user').then(({data})=>{ this.setstate({ list:data }); });} |
组件挂载完成后执行查询函数
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componentdidmount(){ this.query();} |
22、向表格中填充数据
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<tbody>{ this.state.list.map(item=>{ return ( <tr key={item.id}> <td>{item.id}</td> <td>{item.name}</td> <td> <button classname="btn btn-primary">修改</button> <button classname="btn btn-danger" style={{marginleft:'5px'}}>删除</button> </td> </tr> ) })}</tbody> |
23、对表单中的文本框和提交按钮进行控制
文本框
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<input type="text" id="name" classname="form-control" value={this.state.name} onchange={ (e)=>{ this.setstate({ name:e.target.value }) }}/> |
提交按钮点击事件
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<button classname="btn btn-default" onclick={this.handleformsubmit}>提交</button> |
点击事件函数
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handleformsubmit = (e) => { e.preventdefault(); if (this.state.name != '') { axios.post('/user', { id: !this.state.id ? '' : this.state.id, name: this.state.name }).then(({data}) => { this.setstate({ id: '', name: '' }); this.query(); }) }} |
24、对表格中每一行的修改和删除按钮进行事件处理
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<button classname="btn btn-primary" onclick={() => { this.setstate({id: item.id, name: item.name}) }}>修改 </button> <button classname="btn btn-danger" style={{marginleft: '5px'}} onclick={() => { this.deleteitem(item) }}>删除 </button> |
删除操作函数
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deleteitem = (item) => { axios.delete(`/user/${item.id}`).then(({data}) => { this.query(); })} |
25、执行npm start启动前端
26、表单数据居中显示添加app.css
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.table th, .table td { text-align: center; vertical-align: middle!important;} |
app.js中引入app.css
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import './app.css' |
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://blog.csdn.net/oXinYangonly/article/details/83545230
