axios.defaults.timeout = 6000;

// Add a request interceptor
axios.interceptors.request.use(function (config) {
 // Do something before request is sent
 return config;
 }, function (error) {
 // Do something with request error
 return Promise.reject(error);
});
// Add a response interceptor
axios.interceptors.response.use(function (response) {
 // Do something with response data
 return response;
 }, function (error) {
 // Do something with response error
 return Promise.reject(error);
});

this.$axios.get(url, {params:{load:'noload'}}).then(function (response) {
	//dosomething();
}).catch(error => {
	//超時之后在這里捕抓錯誤信息.
	if (error.response) {
	console.log('error.response')
	console.log(error.response);
	} else if (error.request) {
	console.log(error.request)
	console.log('error.request')
	if(error.request.readyState == 4 && error.request.status == 0){
	//我在這里重新請求
	}
	} else {
	console.log('Error', error.message);
	}
	console.log(error.config);
});

// Handle timeout
 request.ontimeout = function handleTimeout() {
 reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED',
 request));
 // Clean up request
 request = null;
 };

axios.interceptors.response.use(function(response){
....
}, function(error){
	var originalRequest = error.config;
	if(error.code == 'ECONNABORTED' && error.message.indexOf('timeout')!=-1 && !originalRequest._retry){
	originalRequest._retry = true
	return axios.request(originalRequest);
	}
});

//在main.js設(shè)置全局的請求次數(shù)，請求的間隙
axios.defaults.retry = 4;
axios.defaults.retryDelay = 1000;
axios.interceptors.response.use(undefined, function axiosRetryInterceptor(err) {
 var config = err.config;
 // If config does not exist or the retry option is not set, reject
 if(!config || !config.retry) return Promise.reject(err);
 // Set the variable for keeping track of the retry count
 config.__retryCount = config.__retryCount || 0;
 // Check if we've maxed out the total number of retries
 if(config.__retryCount >= config.retry) {
 // Reject with the error
 return Promise.reject(err);
 }
 // Increase the retry count
 config.__retryCount += 1;
 // Create new promise to handle exponential backoff
 var backoff = new Promise(function(resolve) {
 setTimeout(function() {
 resolve();
 }, config.retryDelay || 1);
 });
 // Return the promise in which recalls axios to retry the request
 return backoff.then(function() {
 return axios(config);
 });
});

import axios from 'axios';
//安裝方法
npm install axios
//或
bower install axios

axios.request(config)
axios.get(url[, config])
axios.delete(url[, config])
axios.head(url[, config])
axios.post(url[, data[, config]])
axios.put(url[, data[, config]])
axios.patch(url[, data[, config]])

//config
import Qs from 'qs'
{
 //請求的接口，在請求的時候，如axios.get(url,config);這里的url會覆蓋掉config中的url
 url: '/user',
 // 請求方法同上
 method: 'get', // default
 // 基礎(chǔ)url前綴
 baseURL: 'https://some-domain.com/api/',
　　
　　　　
 transformRequest: [function (data) {
 // 這里可以在發(fā)送請求之前對請求數(shù)據(jù)做處理，比如form-data格式化等，這里可以使用開頭引入的Qs（這個模塊在安裝axios的時候就已經(jīng)安裝了，不需要另外安裝）
　　data = Qs.stringify({});
 return data;
 }],
 transformResponse: [function (data) {
 // 這里提前處理返回的數(shù)據(jù)
 return data;
 }],
 // 請求頭信息
 headers: {'X-Requested-With': 'XMLHttpRequest'},
 //parameter參數(shù)
 params: {
 ID: 12345
 },
 //post參數(shù)，使用axios.post(url,{},config);如果沒有額外的也必須要用一個空對象，否則會報錯
 data: {
 firstName: 'Fred'
 },
 //設(shè)置超時時間
 timeout: 1000,
 //返回數(shù)據(jù)類型
 responseType: 'json', // default
}

axios.post(url,{},config)
 .then(function(res){
 console.log(res);
 })
 .catch(function(err){
 console.log(err);
 })
//axios請求返回的也是一個promise,跟蹤錯誤只需要在最后加一個catch就可以了。
//下面是關(guān)于同時發(fā)起多個請求時的處理
axios.all([get1(), get2()])
 .then(axios.spread(function (res1, res2) {
 // 只有兩個請求都完成才會成功，否則會被catch捕獲
 }));

axios.defaults.baseURL = 'https://api.example.com';
axios.defaults.headers.common['Authorization'] = AUTH_TOKEN;
axios.defaults.headers.post['Content-Type'] = 'application/x-www-form-urlencoded';
//當然還可以這么配置
var instance = axios.create({
 baseURL: 'https://api.example.com'
});