SpringBoot+Vue前后端分离

springboot+vue前后端分离入门demo

yb歪比

9562人浏览 · 2022-03-17 17:09:30

yb歪比 · 2022-03-17 17:09:30 发布

前言

一个入门级SpringBoot+Vue前后端分离demo,实现登录并跳转
前端：vue+elemengui+router+axios
后台：SpringBoot

一、vue项目创建

跟着狂神的胡言乱语式教程将vue简单入门，能够实现一个纯前端的登录并跳转主页的demo
狂神视频教程

二、SpringBoot项目创建

使用IDEA创建一个简单的SpringBoot项目，这里随便百度，参考很多

使用IDEA搭建一个简单的SpringBoot项目

三、前后端整合

1.vue配置跨域跳转

在vue项目中config目录下的index.js文件中设置跨域

proxyTable: {
      '/apis':{
        target: 'http://localhost:8089',//这里是你的sprintboot项目中的后台接口
        changeOrigin: true,//允许跨域
        pathRewrite: {//重写路径
          '^/apis':'/apis'//写'/apis'就相当于写'http://localhost:8089/apis'
        }
      }

2.springboot项目中添加接口

新建LoginController响应登录接口，url为’/apis/login’

	@CrossOrigin//支持跨域
    @RequestMapping(value = "/apis/login", method = RequestMethod.POST)
    @ResponseBody
    public String login(@RequestBody user u){//user实体类接收参数
        System.out.println(u.getUsername()+"-----"+u.getPassword());
        return u.getUsername();
    }

四、项目代码

1.vue项目结构

在这里插入图片描述

2.vue项目代码

Login.vue

<template>
  <div>
    <!--el-form一个表单，两个输入框-->
    <el-form ref="loginForm" :model="form" :rules="rules"  label-width="80px" class="login-box">
      <h3 class="login-title">欢迎登陆</h3>
      <el-form-item label="账号" prop="username">
        <el-input type="text" placeholder="请输入账号" v-model="form.username"/>
      </el-form-item>
      <el-form-item label="密码" prop="password">
        <el-input type="password" placeholder="请输入密码" v-model="form.password"/>
      </el-form-item>
      <el-form-item>
        <!--登陆按钮绑定了一个onSubmit事件-->
        <el-button type="primary" v-on:click="onSubmit('loginForm')">登陆</el-button>
      </el-form-item>
    </el-form>
    <!--提示窗-->
    <el-dialog
      title="温馨提示"
      :visible.sync="dialogVisible"
      width="30%"
      :before-close="handleClose">
      <span>请输入账号和密码</span>
      <span slot="footer" class="dialog-footer">
        <el-button type="primary" @click="dialogVisible = false">确定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
export default {
  name:"Login",
  data(){
    return{
      form:{
        username:'',
        password:''
      },
      rules:{
        username: [
          {required:true,message:'账号不可为空',trigger:'blur'}
        ],
        password: [
          {required:true,message:'密码不可为空',trigger:'blur'}
        ]
      },
      dialogVisible:false

    }
  },
  methods:{
    onSubmit(formName){
      /*为表单绑定验证功能*/
      this.$refs[formName].validate((valid)=>{
        if(valid){
          /*如果引用成功了，会去router中push到main，这种方式称为编程式导航*/
          // this.$router.push("/main/"+this.form.username);

          this.login()
        }else {
          this.dialogVisible=true;
          return false;

        }
      });
    },
    login(){

      this.axios.post('/apis/login',
        {username:this.form.username,password:this.form.password}
        ).then(successResponse=>{
          console.log(successResponse)
          this.$router.push("/main/"+this.form.username);
      })
    }
  }
}
</script>
<style lang="scss" scoped>
.login-box {
  border: 1px solid #DCDFE6;
  width: 350px;
  margin: 180px auto;
  padding: 35px 35px 15px 35px;
  border-radius: 5px;
  -webkit-border-radius: 5px;
  -moz-border-radius: 5px;
  box-shadow: 0 0 25px #909399;
}

.login-title {
  text-align: center;
  margin: 0 auto 40px auto;
  color: #303133;
}
</style>

main.vue

<template>
  <el-container style="height: 500px; border: 1px solid #eee">
    <el-aside width="200px" style="background-color: rgb(238, 241, 246)">
      <el-menu :default-openeds="['1', '3']">
        <el-submenu index="1">
          <template slot="title">
            <i class="el-icon-message"></i>用户管理
          </template>
          <el-menu-item-group>
            <el-menu-item index="1-1">
              <!-- 需要对象v-bind -->
              <router-link :to="{name:'UserProfile',params:{id:1}}">个人信息</router-link>
            </el-menu-item>
            <el-menu-item index="1-2">
              <router-link to="/user/list">用户列表</router-link>
            </el-menu-item>
          </el-menu-item-group>
        </el-submenu>
        <el-submenu index="2">
          <template slot="title">
            <i class="el-icon-menu"></i>内容管理
          </template>
          <el-menu-item-group>
            <el-menu-item index="2-1">分类管理</el-menu-item>
            <el-menu-item index="2-2">内容列表</el-menu-item>
          </el-menu-item-group>
        </el-submenu>

        <el-submenu index="3">
          <template slot="title">
            <i class="el-icon-menu"></i>系统管理
          </template>
          <el-menu-item-group>
            <el-menu-item index="2-1">分类管理</el-menu-item>
            <el-menu-item index="2-2">内容列表</el-menu-item>
          </el-menu-item-group>
        </el-submenu>

      </el-menu>
    </el-aside>

    <el-container>
      <el-header style="text-align: right; font-size: 12px">
        <el-dropdown>
          <i class="el-icon-setting" style="margin-right: 15px"></i>
          <el-dropdown-menu slot="dropdown">
            <el-dropdown-item>个人信息</el-dropdown-item>
            <el-dropdown-item>退出登录</el-dropdown-item>
          </el-dropdown-menu>
        </el-dropdown>
        <span>{{name}}</span>
      </el-header>

      <el-main>
        <router-view></router-view>
      </el-main>
    </el-container>
  </el-container>
</template>

<style>
.el-header {
  background-color: #b3c0d1;
  color: #333;
  line-height: 60px;
}

.el-aside {
  color: #333;
}
</style>

<script>
export default {
  props: ['name'],
  data() {
    const item = {
      date: "2016-05-02",
      name: "王小虎",
      address: "上海市普陀区金沙江路 1518 弄"
    };
    return {
      tableData: Array(20).fill(item)
    };
  }
};
</script>

NotFound.vue

<template>
  <div>
    <h1>404</h1>
    <h1>你的页面走丢了</h1>
  </div>
</template>

<script>
export default {
  name: "NotFound"
}
</script>

<style scoped>

</style>

App.vue

<template>
  <div id="app">
    <router-view></router-view>
  </div>
</template>

<script>


export default {
  name: 'App'
}
</script>

List.vue

<template>
  <el-table
    :data="tableData"
    height="250"
    border
    style="width: 100%">
    <el-table-column
      prop="date"
      label="日期"
      width="180">
    </el-table-column>
    <el-table-column
      prop="name"
      label="姓名"
      width="180">
    </el-table-column>
    <el-table-column
      prop="address"
      label="地址">
    </el-table-column>
  </el-table>
</template>

<script>
export default {
  data() {
    return {
      tableData: [{
        date: '2016-05-03',
        name: '王小虎',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-02',
        name: '王小虎',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-04',
        name: '王小虎',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-01',
        name: '王小虎',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-08',
        name: '王小虎',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-06',
        name: '王小虎',
        address: '上海市普陀区金沙江路 1518 弄'
      }, {
        date: '2016-05-07',
        name: '王小虎',
        address: '上海市普陀区金沙江路 1518 弄'
      }]
    }
  }
}
</script>

<style scoped>

</style>

Profile.vue

<template>

  <div>
    <h1>个人信息</h1>
    {{id}}
  </div>

</template>

<script>
export default {
  name: "UserProfile",
  props: ['id'],
  //过滤器，钩子函数
  beforeRouteEnter:(to, from, next)=>{
    console.log("进入路由之前")//加载数据
    next(vm => {
      vm.getData()
    })
  },
  beforeRouteLeave:(to, from, next)=>{
    console.log("进入路由之后")
    next()
  },
  methods: {
    getData: function () {
      this.axios({
        method: "get",
        url: 'http://localhost:8080/static/mock/data.json'
      }).then(function (response){
        console.log(response)
      })
    }
  }
}
</script>

<style scoped>

</style>

main.js

// The Vue build version to load with the `import` command
// (runtime-only or standalone) has been set in webpack.base.conf with an alias.
import Vue from 'vue'
import App from './App'

import router from './router'

import axios from 'axios'
import VueAxios from 'vue-axios'

import ElementUI from 'element-ui';
import 'element-ui/lib/theme-chalk/index.css';

Vue.use(ElementUI)
Vue.use(VueAxios, axios)


/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  render: h => h(App)
})

router/index.js

import Vue from "vue";
import Router from 'vue-router'

import main from "../views/main";
import Login from "../views/Login";
import UserList from "../views/user/List"
import UserProfile from "../views/user/Profile"
import NotFound from "../views/NotFound";

Vue.use(Router)

export default new Router({
  mode: "history",
  routes: [
    {
      path: '/main/:name',
      component: main,
      props: true,
      children: [
        {path: '/user/profile/:id', name: 'UserProfile', component: UserProfile, props: true},
        {path: '/user/list', component: UserList}
      ]
    },
    {
      path: '/login',
      component: Login
    },{
      path: '/goHome',
      redirect: '/main'
    },{
      path: '*',
      component: NotFound
    }
  ]
})

config/index.js

'use strict'
// Template version: 1.3.1
// see http://vuejs-templates.github.io/webpack for documentation.

const path = require('path')

module.exports = {
  dev: {

    // Paths
    assetsSubDirectory: 'static',
    assetsPublicPath: '/',

    proxyTable: {
      '/apis':{
        target: 'http://localhost:8089',
        changeOrigin: true,
        pathRewrite: {
          '^/apis':'/apis'
        }
      }
    },

    // Various Dev Server settings
    host: 'localhost', // can be overwritten by process.env.HOST
    port: 8080, // can be overwritten by process.env.PORT, if port is in use, a free one will be determined
    autoOpenBrowser: false,
    errorOverlay: true,
    notifyOnErrors: true,
    poll: false, // https://webpack.js.org/configuration/dev-server/#devserver-watchoptions-


    /**
     * Source Maps
     */

    // https://webpack.js.org/configuration/devtool/#development
    devtool: 'cheap-module-eval-source-map',

    // If you have problems debugging vue-files in devtools,
    // set this to false - it *may* help
    // https://vue-loader.vuejs.org/en/options.html#cachebusting
    cacheBusting: true,

    cssSourceMap: true
  },

  build: {
    // Template for index.html
    index: path.resolve(__dirname, '../dist/index.html'),

    // Paths
    assetsRoot: path.resolve(__dirname, '../dist'),
    assetsSubDirectory: 'static',
    assetsPublicPath: '/',

    /**
     * Source Maps
     */

    productionSourceMap: true,
    // https://webpack.js.org/configuration/devtool/#production
    devtool: '#source-map',

    // Gzip off by default as many popular static hosts such as
    // Surge or Netlify already gzip all static assets for you.
    // Before setting to `true`, make sure to:
    // npm install --save-dev compression-webpack-plugin
    productionGzip: false,
    productionGzipExtensions: ['js', 'css'],

    // Run the build command with an extra argument to
    // View the bundle analyzer report after build finishes:
    // `npm run build --report`
    // Set to `true` or `false` to always turn it on or off
    bundleAnalyzerReport: process.env.npm_config_report
  }
}

3.springboot项目结构

在这里插入图片描述

4.springboot代码

LoginController

package com.example.springbootvue.controller;

import com.example.springbootvue.entity.user;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.*;

@Controller
public class LoginController {
    @CrossOrigin
    @RequestMapping(value = "/apis/login", method = RequestMethod.POST)
    @ResponseBody
    public String login(@RequestBody user u){
        System.out.println(u.getUsername()+"-----"+u.getPassword());
        return u.getUsername();
    }

    @RequestMapping("/")
    @ResponseBody
    public String Hello(){
        return "Hello";
    }
}

user

package com.example.springbootvue.entity;

public class user {
    private String username;
    private String password;

    public String getUsername(){
        return username;
    }

    public String getPassword(){
        return password;
    }
}

总结

是个极简的demo，只是实现了前后端分离的跨域对接，没有写连接数据库与用户验证
另外需要注意，config中index.js文件修改后好想要关掉项目重新启动才会生效

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