一、spa项目完成登录注册布局
二、Spa项目完成登录功能
三、 ajax 跨域问题
四、axios 的 get/post 的区别( qs )
五、T his 指针带来的变量污染
1. 安装开发模块
npm install element-ui -S
npm install axios -S
npm install qs -S
npm install vue-axios -S
package.json安装后自动下载的包
"dependencies": {
"axios": "^0.19.0",
"element-ui": "^2.12.0",
"qs": "^6.9.0",
"vue": "^2.5.2",
"vue-axios": "^2.1.4",
"vue-router": "^3.0.1"
},
2. 引入main.js配置
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import App from './App'; 之前
import App from './App'
import router from './router'
Vue.use(ElementUI) // 新添加 3
Vue.config.productionTip = false
3. 写登录注册跳转页面然后加入一些样式组件
Login.vue
用户登录
提交
用户注册
忘记密码
Reg.vue
用户注册
提交
返回登录
忘记密码
改变App.vue 中的样式
4. 在index.js中配置
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
}
]
})
什么叫跨域
url地址:协议+IP+port+项目 四个部分组成
这要是四个部分中一个部分不一样就属于跨域
处理后了的web.xml
Archetype Created Web Application
contextConfigLocation
classpath:spring-context.xml
org.springframework.web.context.ContextLoaderListener
corsFilter
com.zking.vue.util.CorsFilter
corsFilter
/*
jwtFilter
com.zking.vue.util.JwtFilter
jwtFilter
/*
struts2
org.apache.struts2.dispatcher.filter.StrutsPrepareAndExecuteFilter
struts2
/*
encodingFilter
org.springframework.web.filter.CharacterEncodingFilter
true
encoding
UTF-8
encodingFilter
/*
解决代码
package com.zking.vue.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.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
/**
* 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() {
}
}
导入文件api
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/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];
}
}
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'
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;
login.vue
用户登录
提交
用户注册
忘记密码
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 'element-ui/lib/theme-chalk/index.css'
import App from './App'
import router from './router'
import ElementUI from 'element-ui'
import axios from '@/api/http'
// import axios from 'axios'
import VueAxios from 'vue-axios'
Vue.use(ElementUI)
Vue.use(VueAxios,axios)
Vue.config.productionTip = false
/* eslint-disable no-new */
new Vue({
el: '#app',
router,
components: { App },
template: ' '
})
总结:post方法提交需要用qs进行转换,get方法提交不需要,直接传对象
消息框中的this会代表上面的方法,所以会报错。用箭头函数处理=>
login.vue
doSub() {
let url = this.axios.urls.SYSTEM_USER_DOLOGIN;
console.log(url);
this.axios.post(url, this.ruleForm).then((response) => {
console.log(response);
if (response.data.code == 1) {
this.$message({
message: response.data.msg,
type: 'success'
});
} else {
this.$message({
message: response.data.msg,
type: 'warning'
});
}
}).catch(function(error) {
console.log(error);
});
}