Vue_07 快速入门登录注册

qs.js它是一个url参数转化的js库。用法就两个：//将URL解析成对象的形式：{a:'b',c:'d'}//将对象序列化成URL的形式，以&进行拼接：a=b&c=d'

£轻描～淡写°

3777人浏览 · 2022-08-28 16:33:48

£轻描～淡写° · 2022-08-28 16:33:48 发布

本章目标：

一、vue怎么引入和配置使用element-ui框架（登录+注册界面）

1. 使用vue-cli脚手架工具创建一个vue项目（HBuilder X）

1.1 npm安装elementUI

1.2 在项目中src目录下找到main.js，并在指定位置添加三行代码（main.js是入口文件，所以在这里引入就行，页面就不用引入了）

2. Vue+ElementUI设计登陆页面

本章目标：

1.vue+elementUI完成注册及登陆（了解与使用axios）

2.vue+elementUI组件传参实现菜单折叠

一、vue怎么引入和配置使用element-ui框架（登录+注册界面）

1. 使用vue-cli脚手架工具创建一个vue项目（HBuilder X）

vue init webpack axios (创建项目)如图所示：

1.1 npm安装elementUI

cd pro01 #进入新建项目的根目录
npm install element-ui -S #安装element-ui模块

如果对1.1和1.2步骤不清除详情可见 Vue_06 快速入门 vue-cli搭建SPA项目

1.2 在项目中src目录下找到main.js，并在指定位置添加三行代码（main.js是入口文件，所以在这里引入就行，页面就不用引入了）

import Vue from 'vue'
import ElementUI from 'element-ui' //新添加1
import 'element-ui/lib/theme-chalk/index.css' //新添加2，避免后期打包样式不同，要放在
Vue.use(ElementUI) //新添加3
添加之后main.js代码如下：

// 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 ElementUI from 'element-ui' //新添加element-ui依赖模块
import 'element-ui/lib/theme-chalk/index.css' //新添加2，避免后期打包样式不同，要放在import App from './App';之前
import axios from '@/api/http'   //#vue项目对axios的全局配置      
import VueAxios from 'vue-axios' 
       Vue.use(VueAxios,axios)

Vue.use(ElementUI)//将ElementUI模块添加到Vue中
Vue.config.productionTip = false
/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  components: { App },
  template: '<App/>'
})

2. Vue+ElementUI设计登陆页面

2.1 axios

axios是vue2提倡使用的轻量版的ajax。它是基于promise的HTTP库。它会从浏览器中创建XMLHttpRequests，与Vue配合使用非常好。

①src文件夹下新建一个文件夹api,然后创建登录(action.js)与vue项目对axios的全局配置(http.js)的组件(因为是在不同的服务器不同的端口进行交互)，代码如下：

action.js

/**
 * 对后台请求的地址的封装，URL格式如下：
 * 模块名_实体名_操作
 */
export default {
	'SERVER': 'http://localhost:8080/ssm', //服务器
	'SYSTEM_USER_DOLOGIN': '/user/userLogin', //登陆
	'SYSTEM_USER_DOREG': '/user/userRegister', //注册
	'getFullPath': k => { //获得请求的完整地址，用于mockjs测试时使用
		return this.SERVER + this[k];
	}
}

http.js

/**
 * vue项目对axios的全局配置
 */
import axios from 'axios'
import qs from 'qs'

//引入action模块，并添加至axios的类属性urls上
import action from '@/api/action'//action:本质上是一个JSON对象
axios.urls = action

// axios默认配置
axios.defaults.timeout = 10000; // 超时时间
// axios.defaults.baseURL = 'http://localhost:8080/j2ee15'; // 默认地址
axios.defaults.baseURL = action.SERVER;

//整理数据
// 只适用于 POST,PUT,PATCH，transformRequest` 允许在向服务器发送前，修改请求数据
axios.defaults.transformRequest = function(data) {
	data = qs.stringify(data);
	return data;
};


// 请求拦截器
axios.interceptors.request.use(function(config) {
	return config;
}, function(error) {
	return Promise.reject(error);
});

//响应拦截器,路由请求拦截暂时没用到

// 响应拦截器
axios.interceptors.response.use(function(response) {
	return response;
}, function(error) {
	return Promise.reject(error);
});

// // 路由请求拦截
// // http request 拦截器
// axios.interceptors.request.use(
// 	config => {
// 		//config.data = JSON.stringify(config.data);  
// 		//config.headers['Content-Type'] = 'application/json;charset=UTF-8';
// 		//config.headers['Token'] = 'abcxyz';
// 		//判断是否存在ticket，如果存在的话，则每个http header都加上ticket
// 		// if (cookie.get("token")) {
// 		// 	//用户每次操作，都将cookie设置成2小时
// 		// 	cookie.set("token", cookie.get("token"), 1 / 12)
// 		// 	cookie.set("name", cookie.get("name"), 1 / 12)
// 		// 	config.headers.token = cookie.get("token");
// 		// 	config.headers.name = cookie.get("name");
// 		// }
// 		return config;
// 	},
// 	error => {
// 		return Promise.reject(error.response);
// 	});

// // 路由响应拦截
// // http response 拦截器
// axios.interceptors.response.use(
// 	response => {
// 		if (response.data.resultCode == "404") {
// 			console.log("response.data.resultCode是404")
// 			// 返回 错误代码-1 清除ticket信息并跳转到登录页面
// 			//      cookie.del("ticket")
// 			//      window.location.href='http://login.com'
// 			return
// 		} else {
// 			return response;
// 		}
// 	},
// 	error => {
// 		return Promise.reject(error.response) // 返回接口返回的错误信息
// 	});


//导出全局配置模块axios
export default axios;

②在项目的src文件夹下新建一个文件夹views,然后创建登录(Login.vue)与注册(Register.vue)的组件，代码如下：

Login.vue:

<template>
  <!--有且只有一个根节点-->
  <!-- login-wrap:图片样式-->
  <div class="login-wrap">
    <el-form class="login-container">
   <h1 class="title">用户登录</h1>
      <el-form-item label="">
        <!--placeholder：文本框内提示 -->
        <el-input type="text" placeholder="请输入用户账号" v-model="username" autocomplete="off"></el-input>
      </el-form-item>
      <el-form-item label="">
        <el-input type="password" placeholder="请输入用户密码" v-model="password" autocomplete="off"></el-input>
      </el-form-item>
        <el-button type="primary" @click="doLogin" style="width: 100%;">登录</el-button>
      </el-form-item>
      <el-row style="text-align: center;margin-top: 5px;">
        <el-link type="primary">忘记密码</el-link>
        &nbsp;&nbsp;
        <el-link type="primary" @click="toRegister">用户注册</el-link>
      </el-row>
    </el-form>
  </div>
</template>

<script>
  //我们每一次发起请求都得导入axios和qs,如果是完成一个大型项目,无疑加大了工作量,为了避免这个问题的发生
  //我们可以使用第三方组件：vue-axios:是在axios上扩展的一个插件,由于导入了vue-axios,因此不需要导入axios和qs
  /* import axios from 'axios'
  import qs from 'qs' */
  export default{
    name:'Login',
    data:function(){
      return {
        //因为数据双向绑定，所以需要定义默认值
        username:'',
        password:''
      }
    },
    methods:{
      doLogin:function(){
        let params={
          //this:当前vue实例访问
          username:this.username,
          password:this.password
        };
        console.log(params);
        //请求路径(不同的端口与服务器称为跨域，借助了跨域过滤器：CorsFilter2)
       /* let url="http://localhost:8080/ssm/user/userLogin"; */
       let url=this.axios.urls.SYSTEM_USER_DOLOGIN;
        //发起ajax(axios:轻量级的ajax)
        //链式语法：
        //then:成功的回调结果 catch:失败的回调结果
        //get请求：必须将请求参数保存到params参数中
        //post请求：直接将请求参数传递即可，但是必须将请求参数的PayLoad格式转换成路径拼接参数
        //L如：{'a':'zs','b':'123'}  ->> a=zs&b=123
       /* let str =qs.stringify(params);
       axios.get(url,str)
        console.log(str); */
        //axios.get(url,{params:params})

        //vue-axios形式：
        //this.axios.post(url,{params:params})
        this.axios.get(url,{params:params}).then(resp=>{
          console.log(resp);
          let data=resp.data;
          if(data.success){
             this.$message({
                      message: data.msg,
                      type: 'success'
                    });
          }else{
             this.$message({
                      message: data.msg,
                      type: 'error'
                    });
          }
        }).catch(err=>{
          console.log(err);
        });
      },
      toRegister:function(){
       this.$router.push('/Register')
      }
    }
  }

</script>

<style>
  .login-wrap {
  		box-sizing: border-box;
  		width: 100%;
  		height: 100%;
  		padding-top: 10%;
  		background-image: url(data:image/svg+xml;base64,<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg width="1361px" height="609px" viewBox="0 0 1361 609" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
    <!-- Generator: Sketch 46.2 (44496) - http://www.bohemiancoding.com/sketch -->
    <title>Group 21</title>
    <desc>Created with Sketch.</desc>
    <defs></defs>
    <g id="Ant-Design-Pro-3.0" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
        <g id="账户密码登录-校验" transform="translate(-79.000000, -82.000000)">
            <g id="Group-21" transform="translate(77.000000, 73.000000)">
                <g id="Group-18" opacity="0.8" transform="translate(74.901416, 569.699158) rotate(-7.000000) translate(-74.901416, -569.699158) translate(4.901416, 525.199158)">
                    <ellipse id="Oval-11" fill="#CFDAE6" opacity="0.25" cx="63.5748792" cy="32.468367" rx="21.7830479" ry="21.766008"></ellipse>
                    <ellipse id="Oval-3" fill="#CFDAE6" opacity="0.599999964" cx="5.98746479" cy="13.8668601" rx="5.2173913" ry="5.21330997"></ellipse>
                    <path d="M38.1354514,88.3520215 C43.8984227,88.3520215 48.570234,83.6838647 48.570234,77.9254015 C48.570234,72.1669383 43.8984227,67.4987816 38.1354514,67.4987816 C32.3724801,67.4987816 27.7006688,72.1669383 27.7006688,77.9254015 C27.7006688,83.6838647 32.3724801,88.3520215 38.1354514,88.3520215 Z" id="Oval-3-Copy" fill="#CFDAE6" opacity="0.45"></path>
                    <path d="M64.2775582,33.1704963 L119.185836,16.5654915" id="Path-12" stroke="#CFDAE6" stroke-width="1.73913043" stroke-linecap="round" stroke-linejoin="round"></path>
                    <path d="M42.1431708,26.5002681 L7.71190162,14.5640702" id="Path-16" stroke="#E0B4B7" stroke-width="0.702678964" opacity="0.7" stroke-linecap="round" stroke-linejoin="round" stroke-dasharray="1.405357899873153,2.108036953469981"></path>
                    <path d="M63.9262187,33.521561 L43.6721326,69.3250951" id="Path-15" stroke="#BACAD9" stroke-width="0.702678964" stroke-linecap="round" stroke-linejoin="round" stroke-dasharray="1.405357899873153,2.108036953469981"></path>
                    <g id="Group-17" transform="translate(126.850922, 13.543654) rotate(30.000000) translate(-126.850922, -13.543654) translate(117.285705, 4.381889)" fill="#CFDAE6">
                        <ellipse id="Oval-4" opacity="0.45" cx="9.13482653" cy="9.12768076" rx="9.13482653" ry="9.12768076"></ellipse>
                        <path d="M18.2696531,18.2553615 C18.2696531,13.2142826 14.1798519,9.12768076 9.13482653,9.12768076 C4.08980114,9.12768076 0,13.2142826 0,18.2553615 L18.2696531,18.2553615 Z" id="Oval-4" transform="translate(9.134827, 13.691521) scale(-1, -1) translate(-9.134827, -13.691521) "></path>
                    </g>
                </g>
                <g id="Group-14" transform="translate(216.294700, 123.725600) rotate(-5.000000) translate(-216.294700, -123.725600) translate(106.294700, 35.225600)">
                    <ellipse id="Oval-2" fill="#CFDAE6" opacity="0.25" cx="29.1176471" cy="29.1402439" rx="29.1176471" ry="29.1402439"></ellipse>
                    <ellipse id="Oval-2" fill="#CFDAE6" opacity="0.3" cx="29.1176471" cy="29.1402439" rx="21.5686275" ry="21.5853659"></ellipse>
                    <ellipse id="Oval-2-Copy" stroke="#CFDAE6" opacity="0.4" cx="179.019608" cy="138.146341" rx="23.7254902" ry="23.7439024"></ellipse>
                    <ellipse id="Oval-2" fill="#BACAD9" opacity="0.5" cx="29.1176471" cy="29.1402439" rx="10.7843137" ry="10.7926829"></ellipse>
                    <path d="M29.1176471,39.9329268 L29.1176471,18.347561 C23.1616351,18.347561 18.3333333,23.1796097 18.3333333,29.1402439 C18.3333333,35.1008781 23.1616351,39.9329268 29.1176471,39.9329268 Z" id="Oval-2" fill="#BACAD9"></path>
                    <g id="Group-9" opacity="0.45" transform="translate(172.000000, 131.000000)" fill="#E6A1A6">
                        <ellipse id="Oval-2-Copy-2" cx="7.01960784" cy="7.14634146" rx="6.47058824" ry="6.47560976"></ellipse>
                        <path d="M0.549019608,13.6219512 C4.12262681,13.6219512 7.01960784,10.722722 7.01960784,7.14634146 C7.01960784,3.56996095 4.12262681,0.670731707 0.549019608,0.670731707 L0.549019608,13.6219512 Z" id="Oval-2-Copy-2" transform="translate(3.784314, 7.146341) scale(-1, 1) translate(-3.784314, -7.146341) "></path>
                    </g>
                    <ellipse id="Oval-10" fill="#CFDAE6" cx="218.382353" cy="138.685976" rx="1.61764706" ry="1.61890244"></ellipse>
                    <ellipse id="Oval-10-Copy-2" fill="#E0B4B7" opacity="0.35" cx="179.558824" cy="175.381098" rx="1.61764706" ry="1.61890244"></ellipse>
                    <ellipse id="Oval-10-Copy" fill="#E0B4B7" opacity="0.35" cx="180.098039" cy="102.530488" rx="2.15686275" ry="2.15853659"></ellipse>
                    <path d="M28.9985381,29.9671598 L171.151018,132.876024" id="Path-11" stroke="#CFDAE6" opacity="0.8"></path>
                </g>
                <g id="Group-10" opacity="0.799999952" transform="translate(1054.100635, 36.659317) rotate(-11.000000) translate(-1054.100635, -36.659317) translate(1026.600635, 4.659317)">
                    <ellipse id="Oval-7" stroke="#CFDAE6" stroke-width="0.941176471" cx="43.8135593" cy="32" rx="11.1864407" ry="11.2941176"></ellipse>
                    <g id="Group-12" transform="translate(34.596774, 23.111111)" fill="#BACAD9">
                        <ellipse id="Oval-7" opacity="0.45" cx="9.18534718" cy="8.88888889" rx="8.47457627" ry="8.55614973"></ellipse>
                        <path d="M9.18534718,17.4450386 C13.8657264,17.4450386 17.6599235,13.6143199 17.6599235,8.88888889 C17.6599235,4.16345787 13.8657264,0.332739156 9.18534718,0.332739156 L9.18534718,17.4450386 Z" id="Oval-7"></path>
                    </g>
                    <path d="M34.6597385,24.809694 L5.71666084,4.76878945" id="Path-2" stroke="#CFDAE6" stroke-width="0.941176471"></path>
                    <ellipse id="Oval" stroke="#CFDAE6" stroke-width="0.941176471" cx="3.26271186" cy="3.29411765" rx="3.26271186" ry="3.29411765"></ellipse>
                    <ellipse id="Oval-Copy" fill="#F7E1AD" cx="2.79661017" cy="61.1764706" rx="2.79661017" ry="2.82352941"></ellipse>
                    <path d="M34.6312443,39.2922712 L5.06366663,59.785082" id="Path-10" stroke="#CFDAE6" stroke-width="0.941176471"></path>
                </g>
                <g id="Group-19" opacity="0.33" transform="translate(1282.537219, 446.502867) rotate(-10.000000) translate(-1282.537219, -446.502867) translate(1142.537219, 327.502867)">
                    <g id="Group-17" transform="translate(141.333539, 104.502742) rotate(275.000000) translate(-141.333539, -104.502742) translate(129.333539, 92.502742)" fill="#BACAD9">
                        <circle id="Oval-4" opacity="0.45" cx="11.6666667" cy="11.6666667" r="11.6666667"></circle>
                        <path d="M23.3333333,23.3333333 C23.3333333,16.8900113 18.1099887,11.6666667 11.6666667,11.6666667 C5.22334459,11.6666667 0,16.8900113 0,23.3333333 L23.3333333,23.3333333 Z" id="Oval-4" transform="translate(11.666667, 17.500000) scale(-1, -1) translate(-11.666667, -17.500000) "></path>
                    </g>
                    <circle id="Oval-5-Copy-6" fill="#CFDAE6" cx="201.833333" cy="87.5" r="5.83333333"></circle>
                    <path d="M143.5,88.8126685 L155.070501,17.6038544" id="Path-17" stroke="#BACAD9" stroke-width="1.16666667"></path>
                    <path d="M17.5,37.3333333 L127.466252,97.6449735" id="Path-18" stroke="#BACAD9" stroke-width="1.16666667"></path>
                    <polyline id="Path-19" stroke="#CFDAE6" stroke-width="1.16666667" points="143.902597 120.302281 174.935455 231.571342 38.5 147.510847 126.366941 110.833333"></polyline>
                    <path d="M159.833333,99.7453842 L195.416667,89.25" id="Path-20" stroke="#E0B4B7" stroke-width="1.16666667" opacity="0.6"></path>
                    <path d="M205.333333,82.1372105 L238.719406,36.1666667" id="Path-24" stroke="#BACAD9" stroke-width="1.16666667"></path>
                    <path d="M266.723424,132.231988 L207.083333,90.4166667" id="Path-25" stroke="#CFDAE6" stroke-width="1.16666667"></path>
                    <circle id="Oval-5" fill="#C1D1E0" cx="156.916667" cy="8.75" r="8.75"></circle>
                    <circle id="Oval-5-Copy-3" fill="#C1D1E0" cx="39.0833333" cy="148.75" r="5.25"></circle>
                    <circle id="Oval-5-Copy-2" fill-opacity="0.6" fill="#D1DEED" cx="8.75" cy="33.25" r="8.75"></circle>
                    <circle id="Oval-5-Copy-4" fill-opacity="0.6" fill="#D1DEED" cx="243.833333" cy="30.3333333" r="5.83333333"></circle>
                    <circle id="Oval-5-Copy-5" fill="#E0B4B7" cx="175.583333" cy="232.75" r="5.25"></circle>
                </g>
            </g>
        </g>
    </g>
</svg>);
  		/* background-color: #112346; */
  		background-repeat: no-repeat;
  		background-position: center right;
  		background-size: 100%;
  	}

  	.login-container {
  		border-radius: 10px;
  		margin: 0px auto;
  		width: 350px;
  		padding: 30px 35px 15px 35px;
  		background: #fff;
  		border: 1px solid #eaeaea;
  		text-align: left;
  		box-shadow: 0 0 20px 2px rgba(0, 0, 0, 0.1);
  	}

  	.title {
  		margin: 0px auto 40px auto;
  		text-align: center;
  		color: #505458;
  	}
</style>

Register.vue：

<template>
  <!--有且只有一个根节点-->
  <!-- login-wrap:图片样式-->
  <div class="login-wrap">
    <el-form class="login-container">
   <h1 class="title">用户注册</h1>
      <el-form-item label="">
        <!--placeholder：文本框内提示 -->
        <el-input type="text" placeholder="请输入用户账号" v-model="username" autocomplete="off"></el-input>
      </el-form-item>
      <el-form-item label="">
        <el-input type="password" placeholder="请输入用户密码" v-model="password" autocomplete="off"></el-input>
      </el-form-item>
      <el-form-item label="">
        <el-input type="password1" placeholder="请输入确认密码" v-model="password1" autocomplete="off"></el-input>
      </el-form-item>
        <el-button type="primary" @click="doRegister" style="width: 45%;">注册</el-button>
        <el-button type="primary" @click="returnLogin" style="width: 45%;">返回登录</el-button>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
  export default{
    name:'Login',
    data:function(){
      return {
        //因为数据双向绑定，所以需要定义默认值
        username:'',
        password:'',
        password1:this.password1,
      }
    },
    methods:{
      doRegister:function(){
        let params={
          //this:当前vue实例访问
          username:this.username,
          password:this.password,
          password1:this.password1
        };
        console.log(params);
        let url=this.axios.urls.SYSTEM_USER_DOREG;
        this.axios.get(url,{params:params}).then(resp=>{
          console.log(resp);
          let data=resp.data;
          if(data.success){
             this.$message({
                      message: data.msg,
                      type: 'success'
                    });
          }else{
             this.$message({
                      message: data.msg,
                      type: 'error'
                    });
          }
        }).catch(err=>{
          console.log(err);
        });
      },
      returnLogin:function(){
       this.$router.push('/')
      }
    }
  }

</script>

<style>
  .login-wrap {
  		box-sizing: border-box;
  		width: 100%;
  		height: 100%;
  		padding-top: 10%;
  		background-image: url(data:image/svg+xml;base64,<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg width="1361px" height="609px" viewBox="0 0 1361 609" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
    <!-- Generator: Sketch 46.2 (44496) - http://www.bohemiancoding.com/sketch -->
    <title>Group 21</title>
    <desc>Created with Sketch.</desc>
    <defs></defs>
    <g id="Ant-Design-Pro-3.0" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd">
        <g id="账户密码登录-校验" transform="translate(-79.000000, -82.000000)">
            <g id="Group-21" transform="translate(77.000000, 73.000000)">
                <g id="Group-18" opacity="0.8" transform="translate(74.901416, 569.699158) rotate(-7.000000) translate(-74.901416, -569.699158) translate(4.901416, 525.199158)">
                    <ellipse id="Oval-11" fill="#CFDAE6" opacity="0.25" cx="63.5748792" cy="32.468367" rx="21.7830479" ry="21.766008"></ellipse>
                    <ellipse id="Oval-3" fill="#CFDAE6" opacity="0.599999964" cx="5.98746479" cy="13.8668601" rx="5.2173913" ry="5.21330997"></ellipse>
                    <path d="M38.1354514,88.3520215 C43.8984227,88.3520215 48.570234,83.6838647 48.570234,77.9254015 C48.570234,72.1669383 43.8984227,67.4987816 38.1354514,67.4987816 C32.3724801,67.4987816 27.7006688,72.1669383 27.7006688,77.9254015 C27.7006688,83.6838647 32.3724801,88.3520215 38.1354514,88.3520215 Z" id="Oval-3-Copy" fill="#CFDAE6" opacity="0.45"></path>
                    <path d="M64.2775582,33.1704963 L119.185836,16.5654915" id="Path-12" stroke="#CFDAE6" stroke-width="1.73913043" stroke-linecap="round" stroke-linejoin="round"></path>
                    <path d="M42.1431708,26.5002681 L7.71190162,14.5640702" id="Path-16" stroke="#E0B4B7" stroke-width="0.702678964" opacity="0.7" stroke-linecap="round" stroke-linejoin="round" stroke-dasharray="1.405357899873153,2.108036953469981"></path>
                    <path d="M63.9262187,33.521561 L43.6721326,69.3250951" id="Path-15" stroke="#BACAD9" stroke-width="0.702678964" stroke-linecap="round" stroke-linejoin="round" stroke-dasharray="1.405357899873153,2.108036953469981"></path>
                    <g id="Group-17" transform="translate(126.850922, 13.543654) rotate(30.000000) translate(-126.850922, -13.543654) translate(117.285705, 4.381889)" fill="#CFDAE6">
                        <ellipse id="Oval-4" opacity="0.45" cx="9.13482653" cy="9.12768076" rx="9.13482653" ry="9.12768076"></ellipse>
                        <path d="M18.2696531,18.2553615 C18.2696531,13.2142826 14.1798519,9.12768076 9.13482653,9.12768076 C4.08980114,9.12768076 0,13.2142826 0,18.2553615 L18.2696531,18.2553615 Z" id="Oval-4" transform="translate(9.134827, 13.691521) scale(-1, -1) translate(-9.134827, -13.691521) "></path>
                    </g>
                </g>
                <g id="Group-14" transform="translate(216.294700, 123.725600) rotate(-5.000000) translate(-216.294700, -123.725600) translate(106.294700, 35.225600)">
                    <ellipse id="Oval-2" fill="#CFDAE6" opacity="0.25" cx="29.1176471" cy="29.1402439" rx="29.1176471" ry="29.1402439"></ellipse>
                    <ellipse id="Oval-2" fill="#CFDAE6" opacity="0.3" cx="29.1176471" cy="29.1402439" rx="21.5686275" ry="21.5853659"></ellipse>
                    <ellipse id="Oval-2-Copy" stroke="#CFDAE6" opacity="0.4" cx="179.019608" cy="138.146341" rx="23.7254902" ry="23.7439024"></ellipse>
                    <ellipse id="Oval-2" fill="#BACAD9" opacity="0.5" cx="29.1176471" cy="29.1402439" rx="10.7843137" ry="10.7926829"></ellipse>
                    <path d="M29.1176471,39.9329268 L29.1176471,18.347561 C23.1616351,18.347561 18.3333333,23.1796097 18.3333333,29.1402439 C18.3333333,35.1008781 23.1616351,39.9329268 29.1176471,39.9329268 Z" id="Oval-2" fill="#BACAD9"></path>
                    <g id="Group-9" opacity="0.45" transform="translate(172.000000, 131.000000)" fill="#E6A1A6">
                        <ellipse id="Oval-2-Copy-2" cx="7.01960784" cy="7.14634146" rx="6.47058824" ry="6.47560976"></ellipse>
                        <path d="M0.549019608,13.6219512 C4.12262681,13.6219512 7.01960784,10.722722 7.01960784,7.14634146 C7.01960784,3.56996095 4.12262681,0.670731707 0.549019608,0.670731707 L0.549019608,13.6219512 Z" id="Oval-2-Copy-2" transform="translate(3.784314, 7.146341) scale(-1, 1) translate(-3.784314, -7.146341) "></path>
                    </g>
                    <ellipse id="Oval-10" fill="#CFDAE6" cx="218.382353" cy="138.685976" rx="1.61764706" ry="1.61890244"></ellipse>
                    <ellipse id="Oval-10-Copy-2" fill="#E0B4B7" opacity="0.35" cx="179.558824" cy="175.381098" rx="1.61764706" ry="1.61890244"></ellipse>
                    <ellipse id="Oval-10-Copy" fill="#E0B4B7" opacity="0.35" cx="180.098039" cy="102.530488" rx="2.15686275" ry="2.15853659"></ellipse>
                    <path d="M28.9985381,29.9671598 L171.151018,132.876024" id="Path-11" stroke="#CFDAE6" opacity="0.8"></path>
                </g>
                <g id="Group-10" opacity="0.799999952" transform="translate(1054.100635, 36.659317) rotate(-11.000000) translate(-1054.100635, -36.659317) translate(1026.600635, 4.659317)">
                    <ellipse id="Oval-7" stroke="#CFDAE6" stroke-width="0.941176471" cx="43.8135593" cy="32" rx="11.1864407" ry="11.2941176"></ellipse>
                    <g id="Group-12" transform="translate(34.596774, 23.111111)" fill="#BACAD9">
                        <ellipse id="Oval-7" opacity="0.45" cx="9.18534718" cy="8.88888889" rx="8.47457627" ry="8.55614973"></ellipse>
                        <path d="M9.18534718,17.4450386 C13.8657264,17.4450386 17.6599235,13.6143199 17.6599235,8.88888889 C17.6599235,4.16345787 13.8657264,0.332739156 9.18534718,0.332739156 L9.18534718,17.4450386 Z" id="Oval-7"></path>
                    </g>
                    <path d="M34.6597385,24.809694 L5.71666084,4.76878945" id="Path-2" stroke="#CFDAE6" stroke-width="0.941176471"></path>
                    <ellipse id="Oval" stroke="#CFDAE6" stroke-width="0.941176471" cx="3.26271186" cy="3.29411765" rx="3.26271186" ry="3.29411765"></ellipse>
                    <ellipse id="Oval-Copy" fill="#F7E1AD" cx="2.79661017" cy="61.1764706" rx="2.79661017" ry="2.82352941"></ellipse>
                    <path d="M34.6312443,39.2922712 L5.06366663,59.785082" id="Path-10" stroke="#CFDAE6" stroke-width="0.941176471"></path>
                </g>
                <g id="Group-19" opacity="0.33" transform="translate(1282.537219, 446.502867) rotate(-10.000000) translate(-1282.537219, -446.502867) translate(1142.537219, 327.502867)">
                    <g id="Group-17" transform="translate(141.333539, 104.502742) rotate(275.000000) translate(-141.333539, -104.502742) translate(129.333539, 92.502742)" fill="#BACAD9">
                        <circle id="Oval-4" opacity="0.45" cx="11.6666667" cy="11.6666667" r="11.6666667"></circle>
                        <path d="M23.3333333,23.3333333 C23.3333333,16.8900113 18.1099887,11.6666667 11.6666667,11.6666667 C5.22334459,11.6666667 0,16.8900113 0,23.3333333 L23.3333333,23.3333333 Z" id="Oval-4" transform="translate(11.666667, 17.500000) scale(-1, -1) translate(-11.666667, -17.500000) "></path>
                    </g>
                    <circle id="Oval-5-Copy-6" fill="#CFDAE6" cx="201.833333" cy="87.5" r="5.83333333"></circle>
                    <path d="M143.5,88.8126685 L155.070501,17.6038544" id="Path-17" stroke="#BACAD9" stroke-width="1.16666667"></path>
                    <path d="M17.5,37.3333333 L127.466252,97.6449735" id="Path-18" stroke="#BACAD9" stroke-width="1.16666667"></path>
                    <polyline id="Path-19" stroke="#CFDAE6" stroke-width="1.16666667" points="143.902597 120.302281 174.935455 231.571342 38.5 147.510847 126.366941 110.833333"></polyline>
                    <path d="M159.833333,99.7453842 L195.416667,89.25" id="Path-20" stroke="#E0B4B7" stroke-width="1.16666667" opacity="0.6"></path>
                    <path d="M205.333333,82.1372105 L238.719406,36.1666667" id="Path-24" stroke="#BACAD9" stroke-width="1.16666667"></path>
                    <path d="M266.723424,132.231988 L207.083333,90.4166667" id="Path-25" stroke="#CFDAE6" stroke-width="1.16666667"></path>
                    <circle id="Oval-5" fill="#C1D1E0" cx="156.916667" cy="8.75" r="8.75"></circle>
                    <circle id="Oval-5-Copy-3" fill="#C1D1E0" cx="39.0833333" cy="148.75" r="5.25"></circle>
                    <circle id="Oval-5-Copy-2" fill-opacity="0.6" fill="#D1DEED" cx="8.75" cy="33.25" r="8.75"></circle>
                    <circle id="Oval-5-Copy-4" fill-opacity="0.6" fill="#D1DEED" cx="243.833333" cy="30.3333333" r="5.83333333"></circle>
                    <circle id="Oval-5-Copy-5" fill="#E0B4B7" cx="175.583333" cy="232.75" r="5.25"></circle>
                </g>
            </g>
        </g>
    </g>
</svg>);
  		/* background-color: #112346; */
  		background-repeat: no-repeat;
  		background-position: center right;
  		background-size: 100%;
  	}

  	.login-container {
  		border-radius: 10px;
  		margin: 0px auto;
  		width: 350px;
  		padding: 30px 35px 15px 35px;
  		background: #fff;
  		border: 1px solid #eaeaea;
  		text-align: left;
  		box-shadow: 0 0 20px 2px rgba(0, 0, 0, 0.1);
  	}

  	.title {
  		margin: 0px auto 40px auto;
  		text-align: center;
  		color: #505458;
  	}
</style>

③在router文件夹修改index.js文件代码如下：

import Vue from 'vue'
import Router from 'vue-router'
import HelloWorld from '@/components/HelloWorld'
//登录和注册
import Login from '@/views/Login.vue'
import Register from '@/views/Register.vue'

Vue.use(Router)

export default new Router({
  routes: [
    {
      path: '/HelloWorld',
      name: 'HelloWorld',
      component: HelloWorld
    }, {
      path: '/',//登录为默认
      name: 'Login',
      component: Login
    }, {
      path: '/Register',
      name: 'Register',
      component: Register
    }
  ]
})

当以上工作都完成之后，我们就可以开始引入项目到开发工具中(本人使用IDEA)，项目链接：https://pan.baidu.com/s/1PXt3aAS-8iNUsEcKU11BdA
提取码：1shn

注：引入的前提，需要配置好Maven环境和Tomacat运行环境

基于axios/qs（Login.vue）

qs概述：

          qs.js它是一个url参数转化的js库。用法就两个：
var obj = qs.parse('a=b&c=d'); //将URL解析成对象的形式：{a:'b',c:'d'}
var str = qs.stringify(obj); //将对象序列化成URL的形式，以&进行拼接：a=b&c=d'

引入依赖

npm install axios -S 作用：使用ajax传递数据

npm install qs-S

2.GET提交
axios.get('/user', {//注意数据是保存到json对象的params属性
params: {
ID: 12345
}
}).then(function (response) {//:上面使用的是箭头函数形式
console.log(response);
}).catch(function (error) {
console.log(error);
});

3.POST提交

注：在上方代码中，我们使用了let str =qs.stringify(params);将params转换成了满足post提交的字符串格式
axios.post('/user', {/注意数据是直接保存到json对象
firstName: 'Fred',
lastName: 'Flintstone'
}).then(function (response) {
console.log(response);
}).catch(function (error) {
console.log(error);
});

基于vue-axios插件（（Login.vue））

vue-axios概述：
vue-axios是在axios基础上扩展的插件，在Vue.prototype原型上扩展了$http等属性，可以更加方便的使用axios

3.4 axios/qs/vue-axios安装及使用步骤
npm install axios -S
npm install qs -S
npm install vue-axios -S

Get请求:

//注：this指的是Vue示例中的axios（也就是vue-axios）

this.axios.post(url,params).then(resp => {
   console.log(resp);
}).catch(resp=>{});

Post请求：

注：

   this.axios.post(url,params).then(resp => {
   console.log(resp);
}).catch(resp=>{});

题外话：
vue.js有著名的全家桶系列：vue-router，vuex， vue-resource，再加上构建工具vue-cli，就是一个完整的vue项目的核心构成。
其中vue-resource是Vue.js的一款插件，它可以通过XMLHttpRequest或JSONP发起请求并处理响应，但在vue更新到2.0之后，
作者就宣告不再对vue-resource更新，而是推荐的axios

注意事项：

注1：axios跨域问题
会一直报错：“http://127.0.0.1:8848' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header”
因为使用了前后端分离开发，跨域访问了，解决方案：需要配置tomcat允许跨域访问，
tomcat跨域配置方法很多，但最简单的方式是自己写一个过滤器CorsFilter实现，添加一个响应头
Access-Control-Allow-Origin即可
httpResponse.addHeader("Access-Control-Allow-Origin", "*");//*表示任何域名
httpResponse.addHeader("Access-Control-Allow-Origin", "http://localhost:80");

Access-Control-Allow-Origin:* #则允许所有域名的脚本访问该资源。
Access-Control-Allow-Origin:https://www.fujieace.com #允许特定的域名访问

注2：axios.get提交没有问题，axios.post提交后台接收不到数据
因为POST提交的参数的格式是Request Payload，这样后台取不到数据的(详情见资料“05 Vue中axios踩坑之路-POST传参 - RainSun - CSDN博客.mht”)，
解决方案：使用qs.js库，将{a:'b',c:'d'}转换成'a=b&c=d'

注3：为简化axios使用，还可以使用axios全局配置及拦截器，详情见资料“api/http.js”
axios.defaults.baseURL = 'https://api.example.com';
//axios.defaults.headers.common['Authorization'] = AUTH_TOKEN;//自定义请求头，添加认证令牌
axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';

注4：为方便开发，建议对请求地址进行封装，详情见资料“api/action.js”

注5：为进一步简化开发，将action.js的URL地址封装到axios.urls属性上

运行效果：

二、箭头函数

ES6标准新增了一种新的函数：Arrow Function（箭头函数）。

为什么叫Arrow Function？因为它的定义用的就是一个箭头：

x => x * x

上面的箭头函数相当于：

function (x) {
    return x * x;
}

箭头函数相当于匿名函数，并且简化了函数定义。箭头函数有两种格式，一种像上面的，只包含一个表达式，连{ ... }和return都省略掉了。还有一种可以包含多条语句，这时候就不能省略{ ... }和return：

x => {
    if (x > 0) {
        return x * x;
    }
    else {
        return - x * x;
    }
}

如果参数不是一个，就需要用括号()括起来：

// 两个参数:
(x, y) => x * x + y * y

// 无参数:
() => 3.14

// 可变参数:
(x, y, ...rest) => {
    var i, sum = x + y;
    for (i=0; i<rest.length; i++) {
        sum += rest[i];
    }
    return sum;
}

如果要返回一个对象，就要注意，如果是单表达式，这么写的话会报错：

// SyntaxError:
x => { foo: x }

因为和函数体的{ ... }有语法冲突，所以要改为：

// ok:
x => ({ foo: x })

this

箭头函数看上去是匿名函数的一种简写，但实际上，箭头函数和匿名函数有个明显的区别：箭头函数内部的this是词法作用域，由上下文确定。

回顾前面的例子，由于JavaScript函数对this绑定的错误处理，下面的例子无法得到预期结果：

var obj = {
    birth: 1990,
    getAge: function () {
        var b = this.birth; // 1990
        var fn = function () {
            return new Date().getFullYear() - this.birth; // this指向window或undefined
        };
        return fn();
    }
};

现在，箭头函数完全修复了this的指向，this总是指向词法作用域，也就是外层调用者obj：

var obj = {
    birth: 1990,
    getAge: function () {
        var b = this.birth; // 1990
        var fn = () => new Date().getFullYear() - this.birth; // this指向obj对象
        return fn();
    }
};
obj.getAge(); // 25

如果使用箭头函数，以前的那种hack写法：

var that = this;

就不再需要了。

由于this在箭头函数中已经按照词法作用域绑定了，所以，用call()或者apply()调用箭头函数时，无法对this进行绑定，即传入的第一个参数被忽略：

var obj = {
    birth: 1990,
    getAge: function (year) {
        var b = this.birth; // 1990
        var fn = (y) => y - this.birth; // this.birth仍是1990
        return fn.call({birth:2000}, year);
    }
};
obj.getAge(2015); // 25

Vue

前往低代码交流专区

更多推荐

vue 表单验证

1、6位小写字母和数字必须包含两个字母rules: [{ required: true, message: "XXX不能为空", trigger: "blur" },{ max: 6, message: "最大长度为6位字符", trigger: "blur" },{pattern: /^(?=(?:[^a-z]*[a-z]){2})[a-z0-9]{6,6}$/, //不连续的两位字母// /^