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Detailed explanation of the steps to implement request interception with vue axios
Detailed explanation of the steps to implement request interception with vue axios
This time I will bring you a detailed explanation of the steps to implement request interception with vue axios. What are the precautions for implementing request interception with vue axios. The following is a practical case, let's take a look.
axios Introduction
axios is a Promise-based HTTP client for browsers and nodejs. It has the following characteristics:
Create XMLHttpRequest from the browser
Make http requests from node.js
Support Promise API
Intercept requests and responses
Convert request and response data
Cancel requests
Automatically Convert JSON data
Client supports preventing CSRF/XSRF
The following code introduces vue axios request interception. The specific code is as follows:
import axios from 'axios';//引入axios依赖
import { Message } from 'element-ui';
import Cookies from 'js-cookie'; //引入cookie操作依赖
import router from '@/router/index'//引入路由对象
axios.defaults.timeout = 5000;
axios.defaults.baseURL ='';
//http request 封装请求头拦截器
axios.interceptors.request.use(
config => {
var token = ''
if(typeof Cookies.get('user') === 'undefined'){
//此时为空
}else {
token = JSON.parse(Cookies.get('user')).token
}//注意使用的时候需要引入cookie方法，推荐js-cookie
config.data = JSON.stringify(config.data);
config.headers = {
'Content-Type':'application/json'
}
if(token != ''){
config.headers.token = token;
}
return config;
},
error => {
return Promise.reject(err);
}
);
//http response 封装后台返回拦截器
axios.interceptors.response.use(
response => {
//当返回信息为未登录或者登录失效的时候重定向为登录页面
if(response.data.code == 'W_100004' || response.data.message == '用户未登录或登录超时，请登录！'){
router.push({
path:"/",
querry:{redirect:router.currentRoute.fullPath}//从哪个页面跳转
})
}
return response;
},
error => {
return Promise.reject(error)
}
)
/**
* 封装get方法
* @param url
* @param data
* @returns {Promise}
*/
export function fetch(url,params={}){
return new Promise((resolve,reject) => {
axios.get(url,{
params:params
})
.then(response => {
resolve(response.data);
})
.catch(err => {
reject(err)
})
})
}
/**
* 封装post请求
* @param url
* @param data
* @returns {Promise}
*/
export function post(url,data = {}){
return new Promise((resolve,reject) => {
axios.post(url,data)
.then(response => {
resolve(response.data);
},err => {
reject(err)
})
})
}
/**
* 封装导出Excal文件请求
* @param url
* @param data
* @returns {Promise}
*/
export function exportExcel(url,data = {}){
return new Promise((resolve,reject) => {
axios({
method: 'post',
url: url, // 请求地址
data: data, // 参数
responseType: 'blob' // 表明返回服务器返回的数据类型
})
.then(response => {
resolve(response.data);
let blob = new Blob([response.data], {type: "application/vnd.ms-excel"});
let fileName = "订单列表_"+Date.parse(new Date())+".xls" ;
if (window.navigator.msSaveOrOpenBlob) {
navigator.msSaveBlob(blob, fileName);
} else {
var link = document.createElement('a');
link.href = window.URL.createObjectURL(blob);
link.download = fileName;
link.click();
window.URL.revokeObjectURL(link.href);
}
},err => {
reject(err)
})
})
}
/**
* 封装patch请求
* @param url
* @param data
* @returns {Promise}
*/
export function patch(url,data = {}){
return new Promise((resolve,reject) => {
axios.patch(url,data)
.then(response => {
resolve(response.data);
},err => {
reject(err)
})
})
}
/**
* 封装put请求
* @param url
* @param data
* @returns {Promise}
*/
export function put(url,data = {}){
return new Promise((resolve,reject) => {
axios.put(url,data)
.then(response => {
resolve(response.data);
},err => {
reject(err)
})
})
}I believe you have mastered it after reading the case in this article For more exciting methods, please pay attention to other related articles on the php Chinese website!
Recommended reading:
Detailed explanation of Angular server-side rendering method
Element-ui control method of operating iview
The above is the detailed content of Detailed explanation of the steps to implement request interception with vue axios. For more information, please follow other related articles on the PHP Chinese website!
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