VUE2中axios的使用方法

一,安装

  npm install axios

二,在http.js中引入

  import axios from 'axios';
三,定义http request 拦截器,添加数据请求公用信息
 1 axios.interceptors.request.use(
 2     config => {
 3         // const token = getCookie('名称');注意使用的时候需要引入cookie方法,推荐js-cookie
 4         //config.data = JSON.stringify(config.data);
 5         let token = localStorage.token;
 6         //let token = 'xxx';
 7         let appid = 'xxx';
 8         let appID = decodeURIComponent(appid);
 9         config.headers.token = token;
10         //config.headers['Content-Type'] = 'application/x-www-form-urlencoded';
11 
12         if (config.method == 'get') {
13             config.params.app_id = appID
14             config.params.token = token
15         }
16         if (config.method == 'post') {
17             config.data.token = token
18             config.data.app_id = appID
19         }
20 
21         return config;
22     },
23     error => {
24         return Promise.reject(err);
25     }
26 );

四,封装get方法

export function get(url, params = {}) {

    return new Promise((resolve, reject) => {
        axios.get(url, {
                params: params
            })
            .then(response => {
                resolve(response.data);
            })
            .catch(err => {
                reject(err)
            })
    })
}

五,封装post方法

export function post(url, params = {}) {

    return new Promise((resolve, reject) => {
        axios.post(url, params)
            .then(response => {
                resolve(response.data);
            }, err => {
                reject(err)
            })
    })
}

六,封装patch请求

export function patch(url, data = {}) {
    return new Promise((resolve, reject) => {
        axios.patch(url, data)
            .then(response => {
                resolve(response.data);
            }, err => {
                reject(err)
            })
    })
}

七,封装put请求

export function put(url, data = {}) {
    return new Promise((resolve, reject) => {
        axios.put(url, data)
            .then(response => {
                resolve(response.data);
            }, err => {
                reject(err)
            })
    })
}

八,实现跨域

1 const downloadUrl = url => {
2     let iframe = document.createElement('iframe')
3     iframe.style.display = 'none'
4     iframe.src = url
5     iframe.onload = function() {
6         document.body.removeChild(iframe)
7     }
8     document.body.appendChild(iframe)
9 }

九,方法的使用

  在main.js里引入http.js

  

1 import Vue from 'vue'
2 import App from './App'
3 import router from './router'
4 import axios from 'axios'
5 import {get, post } from '@/utils/http'
6 
7 Vue.prototype.$ajax = axios;
8 Vue.prototype.$post = post;
9 Vue.prototype.$get = get;

  在需要调用的地方

  

this.$get(url).then((response) => {
               
    }
})
this.$post(url, data).then((response) => {
               
    }
})
this.$put(url, data).then((response) => {
               
    }
})
this.$patch(url, data).then((response) => {
               
    }
})

 

  
posted @ 2018-09-20 15:07  zhangbs  阅读(6308)  评论(0编辑  收藏  举报