SPA项目之登录注册--请求问题（POST&GET）以及跨域问题

🥳🥳Welcome Huihui's Code World ! !🥳🥳

接下来看看由辉辉所写的关于Vue+ElementUI的相关操作吧

目录

🥳🥳Welcome Huihui's Code World ! !🥳🥳

一.ElementUI是什么

💡准备工作💡

1.搭建一个SPA项目

2.前后端分离准备

①确保SPA项目能够运行起来

②将api文件夹导入src目录

③下载js依赖

二.登录

①在src目录下创建views目录

②在main.js中引入element-ui模块

③建用户登录组件Login.vue

④定义组件的和路由的关系

效果预览

💡get请求&post请求的区别💡

①get请求

②post请求

三.注册

①建用户登录组件Register.vue

②定义组件的和路由的关系

③biz

④bizimpl

⑤controller

效果预览

四.跨域问题

①什么是跨域问题

②怎么产生的？

③怎么解决

---

一.ElementUI是什么

        ElementUI是一个基于Vue.js的开源UI库，用于快速构建Web界面。它提供了丰富的组件和直观的设计，使开发者能够轻松地创建漂亮、响应式和高效的用户界面。ElementUI具有可定制性强、易于使用和维护的特点，被广泛用于企业级应用的开发中。它提供了诸如按钮、表单、表格、对话框等常见的UI组件，可以帮助开发者快速构建出现代化的网页应用程序

💡准备工作💡

1.搭建一个SPA项目

详细步骤点这

2.前后端分离准备

①确保SPA项目能够运行起来

标志: 能够返回数据

🔺导入ssm项目

②将api文件夹导入src目录

http.js是对axios的全局配置

/**
 * 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'
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
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
// 	});
 
 
 
export default axios;

action.js是封装后台请求的地址

/**
 * 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', //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];
	}
}

（这样我们就不需要在多个组件中都重复导入需要使用的js等）

③下载js依赖

        ▲axios：前端向后台发送请求

npm i axios -S

       

        ▲qs：解决发送post请求代码冗余的问题

npm i qs -s

        ▲ElementUI：快速布局

npm install element-ui -S//使用命令npm install element-ui -S，添加Element-UI模块

🔺npm install element-ui -S /-D /-G有什么区别?

• npm install element-ui -S：安装ElementUI的最新版本，适用于开发人员（参与打包）
• npm install element-ui -d：安装ElementUI的指定版本，但不将其添加到package.json文件中，适用于开发人员（不参与打包）
• npm install element-ui -g：安装ElementUI的全局版本，适用于开发人员和系统管理员（全局node_global）

        ▲vue-axios：将axios依赖整合进vue中

npm i vue-axios -S

二.登录

①在src目录下创建views目录

该目录用于存放vue组件

②在main.js中引入element-ui模块

新添加1和新添加2一定要在import App from './App'之前

// 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'
// 新添加1
import ElementUI from 'element-ui'
// 新添加2，避免后期打包样式不同，要放在import App from './App';之前
import 'element-ui/lib/theme-chalk/index.css'
 
import App from './App'
import router from './router'
 
// 新添加3
Vue.use(ElementUI)
Vue.config.productionTip = false
 
/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  components: { App },
  template: ''
})

③建用户登录组件Login.vue

<template>
  <div class="login-wrap">
    <el-form class="login-container">
      <h1 class="title">用户登录h1>
      <el-form-item label="">
        <el-input type="text" v-model="username" placeholder="登录账号" autocomplete="off">el-input>
      el-form-item>
      <el-form-item label="">
        <el-input type="password" v-model="password" placeholder="登录密码" autocomplete="off">el-input>
      el-form-item>
      <el-form-item>
        <el-button type="primary" style="width:100%;" @click="doSubmit()">提交el-button>
      el-form-item>
      <el-row style="text-align: center;margin-top:-10px">
        <el-link type="primary">忘记密码el-link>
        <el-link type="primary" @click="gotoRegister()">用户注册el-link>
      el-row>
    el-form>
  div>
template>
 
<script>
  // import axios from 'axios'
  // import qs from 'qs'
  export default {
    name: 'Login',
    data() {
      return {
        username: '',
        password: '',
      }
    },
    methods: {
      gotoRegister() {
        this.$router.push('/Register');
      },
      doSubmit() {
        let url = this.axios.urls.SYSTEM_USER_DOLOGIN;
        let params = {
          username: this.username,
          password: this.password
        };
 
 
        //get请求
        // console.log(params);
        /* axios.get(url, {
          params: params
        }).then(r => {
          console.log(r);
          if (r.data.success) {
            this.$message({
              message: r.data.msg,
              type: 'success'
            });
          }else{
            this.$message.error(r.data.msg);
          }
        }).catch(e => {
          console.log(e);
        }) */
 
 
        //post请求
        this.axios.post(url, params).then(r => {
          console.log(r);
          if (r.data.success) {
            this.$message({
              message: r.data.msg,
              type: 'success'
            });
          } else {
            this.$message.error(r.data.msg);
          }
        }).catch(e => {
          console.log(e);
        })
 
      }
    }
  }
script>
 
<style scoped>
  .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>

④定义组件的和路由的关系

import Vue from 'vue'
import Router from 'vue-router'
import HelloWorld from '@/components/HelloWorld'
import Login from '@/views/Login'
import Register from '@/views/Register'
 
Vue.use(Router)
 
export default new Router({
  routes: [
    {
      path: '/',
      name: 'Login',
      component: Login
    },{
      path: '/Login',
      name: 'Login',
      component: Login
    },
    {
      path: '/Register',
      name: 'Register',
      component: Register
    }
  ]
})

效果预览

💡axios之get请求&post请求的区别💡

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

①get请求

//get请求
        // console.log(params);
        axios.get(url, {
          params: params
        }).then(r => {
          console.log(r);
          if (r.data.success) {
            this.$message({
              message: r.data.msg,
              type: 'success'
            });
          }else{
            this.$message.error(r.data.msg);
          }
        }).catch(e => {
          console.log(e);
        })

②post请求

 
        //post请求
        this.axios.post(url, params).then(r => {
          console.log(r);
          if (r.data.success) {
            this.$message({
              message: r.data.msg,
              type: 'success'
            });
          } else {
            this.$message.error(r.data.msg);
          }
        }).catch(e => {
          console.log(e);
        })

原本的数据

调整之后（使用qs.js库，将{a:'b',c:'d'}转换成'a=b&c=d'）

三.注册

①建用户登录组件Register.vue

 
 
<script>
  // import axios from 'axios'
  // import qs from 'qs'
  export default {
    name: 'Register' ,
    data() {
      return {
        username: '',
        password: '',
        realname:'',
        sex:'',
        idcard:'',
        address:'',
        nativeplace:''
 
      }
    },
    methods: {
      gotoLogin() {
        this.$router.push('/Login');
      },
      doSubmit() {
        let url = this.axios.urls.SYSTEM_USER_DOREG;
        let params = {
          username: this.username,
          password: this.password,
          realname:this.realname,
          sex:this.sex,
          idcard:this.idcard,
          address:this.address,
          nativeplace:this.nativeplace
        };
 
 
       //post请求
       this.axios.post(url, params).then(r => {
         console.log(r);
         if (r.data.success) {
           this.$message({
             message: r.data.msg,
             type: 'success'
           });
         } else {
           this.$message.error(r.data.msg);
         }
       }).catch(e => {
         console.log(e);
       })
 
 
 
 
      }
    }
  }
script>
 
<style scoped>
  .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;
    margin-top: 20px;
    margin-bottom: 20px;
    width: 450px;
    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>

②定义组件的和路由的关系

import Vue from 'vue'
import Router from 'vue-router'
import HelloWorld from '@/components/HelloWorld'
import Login from '@/views/Login'
import Register from '@/views/Register'
 
Vue.use(Router)
 
export default new Router({
  routes: [
    {
      path: '/',
      name: 'Login',
      component: Login
    },{
      path: '/Login',
      name: 'Login',
      component: Login
    },
    {
      path: '/Register',
      name: 'Register',
      component: Register
    }
  ]
})

③biz

int insertSelective(UserVo userVo);

④bizimpl

 @Override
    public int insertSelective(UserVo userVo) {
        return userMapper.insertSelective(userVo);
    }

⑤controller

 @RequestMapping("/userRegister")
    @ResponseBody
    public JsonResponseBody userRegistered(UserVo userVo, HttpServletRequest request){
        int insertSelective = userService.insertSelective(userVo);
        if(insertSelective>0){
            return new JsonResponseBody<>("用户注册成功！",true,0,null);
        }else{
            return new JsonResponseBody<>("注册失败，请稍后！",false,0,null);
        }
    }

效果预览

四.跨域问题

①什么是跨域问题

        跨域问题是指在浏览器中，由于浏览器的同源策略，不同域名之间的脚本无法直接交互。这是浏览器对JavaScript施加的安全限制。

如果您需要在不同域名之间进行数据交互，可以使用JSONP或CORS等技术来解决跨域问题

②怎么产生的？

        在前后端分离的项目中，跨域问题是由于浏览器的同源策略而产生的。当浏览器检测到我们试图访问不同域的地址时（域名、端口号、协议中有一个不同就算是跨域），会抛出异常。

        在前后端分离项目中，前端和后端部署在不同的服务器上，即使在同一台服务器下，端口号也可能不同。因此，前端需要通过ajax请求服务端API，传输数据用json格式。由于浏览器的同源策略，这种情况下就会产生跨域问题

③怎么解决

CorsFilter2  过滤器

这段代码的作用是配置Tomcat服务器允许来自任何域名的跨域访问，并允许客户端发送包含指定请求头的请求，以及指定允许的请求方法

package com.zking.ssm.util;
 
import java.io.IOException;
 
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletResponse;
 
/**
 * 配置tomcat允许跨域访问
 * 
 * 
 *
 */
public class CorsFilter2 implements Filter {
 
	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
	}
 
	@Override
	public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
			throws IOException, ServletException {
		HttpServletResponse httpResponse = (HttpServletResponse) servletResponse;
 
		// Access-Control-Allow-Origin就是我们需要设置的域名
		// Access-Control-Allow-Headers跨域允许包含的头。
		// Access-Control-Allow-Methods是允许的请求方式
		httpResponse.setHeader("Access-Control-Allow-Origin", "*");// *,任何域名
		httpResponse.setHeader("Access-Control-Allow-Headers", "responseType,Origin, X-Requested-With, Content-Type, Accept");
		httpResponse.setHeader("Access-Control-Allow-Methods", "POST, GET, PUT, DELETE");
 
		//允许客户端处理一个新的响应头jwt
		//httpResponse.setHeader("Access-Control-Expose-Headers", "jwt,Content-Disposition");
		filterChain.doFilter(servletRequest, servletResponse);
	}
 
	@Override
	public void destroy() {
 
	}
}

//这个过滤器，用于配置Tomcat服务器允许跨域访问。在这段代码中，过滤器实现了Filter接口，并重写了//init、doFilter和destroy方法。
 
//init方法是过滤器的初始化方法，但在这段代码中没有进行任何操作。
 
//doFilter方法是过滤器的核心方法，它接收三个参数：servletRequest表示客户端请求的ServletRequest对象，servletResponse表示服务器返回的ServletResponse对象，filterChain表示过滤器链中的下一个过滤器。
 
//在doFilter方法中，首先将servletResponse强制转换为HttpServletResponse类型，然后通过调用setHeader方法设置响应头信息，以实现跨域访问的配置。具体来说，设置了以下三个响应头信息：
 
Access-Control-Allow-Origin：指定允许访问的域名，这里设置为"*"，表示允许任何域名访问。
Access-Control-Allow-Headers：指定允许的请求头字段，包括responseType、Origin、X-Requested-With、Content-Type和Accept。
Access-Control-Allow-Methods：指定允许的请求方法，包括POST、GET、PUT和DELETE。
最后，调用filterChain.doFilter(servletRequest, servletResponse)将请求传递给下一个过滤器进行处理。
 
//destroy方法是过滤器的销毁方法，但在这段代码中也没有进行任何操作。
 

web.xml

  <filter>
    <filter-name>corsFilterfilter-name>
    <filter-class>com.zking.ssm.util.CorsFilter2filter-class>
  filter>
  <filter-mapping>
    <filter-name>corsFilterfilter-name>
    <url-pattern>/*url-pattern>
  filter-mapping>

好啦，今天的分享就到这了，希望能够帮到你呢！😊😊