vue/axios请求拦截

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)
})
})
}
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