vue項目中axios攔截器的使用和配置

1、引入axios、token

import axios from "axios"
import { Message, MessageBox } from "element-ui"
import {getToken, removeToken} from "./token";

2、創建axios實例

• 可以使用自定義配置新建一個 axios 實例

• axios.create([config])

const service = axios.create({
    baseURL: process.env.VUE_APP_API_BASE, // api的base_url
    timeout: 5000 // 請求超時時間
})

3、添加請求攔截器request

在請求被 then 或 catch 處理前攔截它們。

service.interceptors.request.use(
    config => {
        let token = getToken();
        if (token && token !== undefined && token !== "" && token !== "undefined") {
            config.headers['Authorization'] = "Bearer " + token;
        }
        return config;
    },

    error => {
        Promise.reject(error);
    }
);

瀏覽器調試

4、添加響應攔截器respone

在響應被 then 或 catch 處理前攔截它們。

service.interceptors.response.use(
    response => {
        const res = response.data;
        if(res.code === 401) {
            //尚未登錄
            removeToken();
            this.$router.push('/login');
        }

        if (res.code != "0") {
            Message({
                message: res.message,
                type: 'error',
                duration: 5 * 1000
            });
            return Promise.reject(res);
        } else {
            return res;
        }
    },

    error => {
        Message({
            message: error.message,
            type: "error",
            duration: 5 * 1000
        });
        return Promise.reject(error);
    }

);
export default service;