前言：今天要分享的知识是spa项目完成登录注册功能
码字不易，转载请说明！！！
目录
①使用element-ui，引入main.js配置（注意位置，css要在js前面，如新添加二）
②登录注册页面布局（components：放公共组件 views：放业务组件）Login.vue/Reg.vue（两页面基本一致）
三、项目完成登录功能（实现前后端分离，需要后端代码请私信我）
①新建api目录，导入action.js文件 对请求的地址的封装
②实现提交方法（url为路径、this.ruleForm为参数，resp为后台数据）
目标
1、spa 项目完成登录注册布局
2、Spa 项目完成登录功能
3、This 指针带来的变量污染
4、ajax 跨域问题
5、axios 的 get/post 的区别（ qs ）
一、安装开发模块
在spa项目目录下的黑窗口依次执行以下四条命令
npm install element-ui -S （element-ui依赖）
npm install axios -S （Ajax依赖）
npm install qs -S （get/post请求有关）
npm install vue-axios -S （整合组件）
如果途中下载失败，打开项目路径删除相关模块，重新下载
执行完之后在项目package.json中会出现相关依赖
二、登录注册布局
①使用element-ui，引入main.js配置（注意位置，css要在js前面，如新添加二）
②登录注册页面布局（components：放公共组件 views：放业务组件）Login.vue/Reg.vue（两页面基本一致）
<template>
<div class="login-wrap">
<el-form :model="ruleForm" label-width="100px" class="demo-ruleForm login-container">
<h3 style="text-align: center;">用户登录</h3>
<el-form-item label="用户名" prop="uname">
<el-input type="uname" v-model="ruleForm.uname" autocomplete="off"></el-input>
</el-form-item>
<el-form-item label="密码" prop="pwd">
<el-input type="pwd" v-model="ruleForm.pwd" autocomplete="off"></el-input>
</el-form-item>
<el-form-item>
<el-row>
<el-col :span="24">
<div class="grid-content bg-purple-dark">
<el-button style="width: 100%;" type="primary" @click="doSub">提交</el-button>
</div>
</el-col>
</el-row>
<el-row>
<el-col :span="12">
<div class="grid-content bg-purple-dark">
<el-link type="primary" @click="toReg">用户注册</el-link>
</div>
</el-col>
</el-row>
<el-row>
<el-col :span="12">
<div class="grid-content bg-purple-dark">
<el-link type="primary">忘记密码</el-link>
</div>
</el-col>
</el-row>
</el-form-item>
</el-form>
</div>
</template>
<script>
export default {
data() {
return {
ruleForm: {
uname: '',
pwd: '',
},
}
},
methods: {
toReg() {
this.$router.push({
path: '/Reg',
})
},
doSub() {
//$.ajax({url,succ})
let url = this.axios.urls.SYSTEM_USER_DOLOGIN;
//箭头函数解决了this指针污染问题
this.axios.post(url, this.ruleForm).then((resp) => {
console.log(resp);
if (resp.data.code == 1) {
this.$message({
message: resp.data.msg,
type: 'success'
});
this.$router.push({path:'AppMain'});
} else {
this.$message({
message: resp.data.msg,
type: 'warning'
});
}
}).catch(function(error) {
console.log(error);
});
}
}
}
</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>
③ 配置路由
import Vue from 'vue'
import Router from 'vue-router'
import HelloWorld from '@/components/HelloWorld'
import Login from '@/views/Login'
import Reg from '@/views/Reg'
Vue.use(Router)
export default new Router({
routes: [{
path: '/',
name: 'Login',
component: Login
},
{
path: '/Login',
name: 'Login',
component: Login
},
{
path: '/Reg',
name: 'Reg',
component: Reg
}
]
})
效果展示
三、项目完成登录功能（实现前后端分离，需要后端代码请私信我）
①新建api目录，导入action.js文件 对请求的地址的封装
/**
* 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/T216_SSH', //服务器
'SYSTEM_USER_DOLOGIN': '/vue/userAction_login.action', //用户登陆
'SYSTEM_USER_DOREG': '/vue/userAction_reg.action', //用户注册
'SYSTEM_MENU_TREE': '/vue/treeNodeAction.action', //左侧树形菜单加载
'SYSTEM_ARTICLE_LIST': '/vue/articleAction_list.action', //文章列表
'SYSTEM_ARTICLE_ADD': '/vue/articleAction_add.action', //文章新增
'SYSTEM_ARTICLE_EDIT': '/vue/articleAction_edit.action', //文章修改
'SYSTEM_ARTICLE_DEL': '/vue/articleAction_del.action', //文章删除
'SYSTEM_USER_GETASYNCDATA': '/vue/userAction_getAsyncData.action', //vuex中的异步加载数据
'getFullPath': k => { //获得请求的完整地址，用于mockjs测试时使用
return this.SERVER + this[k];
}
}②实现提交方法（url为路径、this.ruleForm为参数，resp为后台数据）
// 提交的方法
submitForm() {
let url = this.axios.urls.SYSTEM_USER_DOLOGIN;
// 箭头函数解决了this指针污染问题
this.axios.post(url, this.ruleForm).then((resp) => {
console.log(resp);
if (resp.data.code == 1) {
this.$message({
message: resp.data.msg,
type: 'success'
});
} else {
this.$message({
message: resp.data.msg,
type: 'warning'
});
}
}).catch(function(error) {
console.log(error);
});
}code为1时登录成功，为0登陆失败
四、指针污染问题
this.message和this.axios中的this不是同一个
方法一：this的指向由所在函数的调用方式决定的，message存在于全局中，所以引用箭头函数
// 提交的方法
submitForm() {
let url = this.axios.urls.SYSTEM_USER_DOLOGIN;
// 箭头函数解决了this指针污染问题
this.axios.post(url, this.ruleForm).then((resp) => {
console.log(resp);
if (resp.data.code == 1) {
this.$message({
message: resp.data.msg,
type: 'success'
});
} else {
this.$message({
message: resp.data.msg,
type: 'warning'
});
}
}).catch(function(error) {
console.log(error);
});
}方法二：在我们定义一个（注意：如果嵌套了很多层，此方法不可取）
五、ajax 跨域问题
①什么是跨域
url地址：协议+ip+port+项目（四部分组成）
例如：
http://localhost:8080/T216_SSH/vue/treeNodeAction.action
只要四个部分中有一个部分不一样就属于跨域
例如：
http://localhost:8080/T216_SSH
http://localhost:8080/T216_SSH2
http://localhost:8088/T216_SSH
http://192.168.122.11:8080/T216_SSH
https://localhost:8088/T216_SSH
此上地址是属于跨域解决方案：（配置tomcat允许跨域访问，编写过滤器CorsFilter.java）
/**
* 配置tomcat允许跨域访问
*
* @author Administrator
*
*/
public class CorsFilter 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.addHeader("Access-Control-Allow-Origin", "*");// *,任何域名
// httpResponse.setHeader("Access-Control-Allow-Methods", "POST, GET, PUT,
// DELETE");
// // httpResponse.setHeader("Access-Control-Allow-Headers", "Origin,
// // X-Requested-With, Content-Type, Accept");
//
// // 允许请求头Token
// httpResponse.setHeader("Access-Control-Allow-Headers",
// "Origin,X-Requested-With, Content-Type, Accept, Token");
// HttpServletRequest req = (HttpServletRequest) servletRequest;
// System.out.println("Token=" + req.getHeader("Token"));
// if("OPTIONS".equals(req.getMethod())) {
// return;
// }
//
//
// filterChain.doFilter(servletRequest, servletResponse);
// }
@Override
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain)
throws IOException, ServletException {
HttpServletResponse resp = (HttpServletResponse) servletResponse;
HttpServletRequest req = (HttpServletRequest) servletRequest;
// 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
resp.setHeader("Access-Control-Allow-Origin", "*");// *,任何域名
resp.setHeader("Access-Control-Allow-Methods", "POST, GET, PUT, DELETE");
// resp.setHeader("Access-Control-Allow-Headers", "Origin,X-Requested-With,
// Content-Type, Accept");
// 允许客户端，发一个新的请求头jwt
resp.setHeader("Access-Control-Allow-Headers", "Origin,X-Requested-With, Content-Type, Accept, jwt");
// 允许客户端，处理一个新的响应头jwt
resp.setHeader("Access-Control-Expose-Headers", "jwt");
// String sss = resp.getHeader("Access-Control-Expose-Headers");
// System.out.println("sss=" + sss);
// 允许请求头Token
// httpResponse.setHeader("Access-Control-Allow-Headers","Origin,X-Requested-With,
// Content-Type, Accept, Token");
// System.out.println("Token=" + req.getHeader("Token"));
if ("OPTIONS".equals(req.getMethod())) {// axios的ajax会发两次请求，第一次提交方式为：option，直接返回即可
return;
}
filterChain.doFilter(servletRequest, servletResponse);
}
@Override
public void destroy() {
}
}web.xml配置
②axios跨域问题
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
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 六、axios 的 get/post 的区别（ qs ）
①什么是qs
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'
qs.stringify()将对象转换成字符串②将http.js导入api目录中
/**
* 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) {
// var jwt = window.vm.$store.getters.getJwt;
// config.headers['jwt'] = jwt;
return config;
}, function(error) {
return Promise.reject(error);
});
// 响应拦截器
axios.interceptors.response.use(function(response) {
// debugger;
// var jwt = response.headers['jwt'];
// if(jwt){
// window.vm.$store.commit('setJwt',{jwt:jwt});
// }
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;③axios的两种配置
import axios from '@/api/http' //#vue项目对axios的全局配置
import axios from 'axios' //原始配置原始写法
let url ='http://localhost:8080/T216_SSH/vue/userAction_login.action''@/api/http'写法（传的是字符串）
let url = this.axios.urls.SYSTEM_USER_DOLOGIN;解决方法：（局部引入qs）
Get请求
let url = this.axios.urls.SYSTEM_USER_DOLOGIN;
this.axios.get(url, { //注意数据是保存到json对象的params属性
params: this.ruleForm
}).then(function(response) {
console.log(response);
}).catch(function(error) {
console.log(error);
});Post请求
let url = this.axios.urls.SYSTEM_USER_DOLOGIN;
this.axios.post(url, this.ruleForm).then(function(response) {
console.log(response);
}).catch(function(error) {
console.log(error);
});到这里就结束了，欢迎大佬指点