Vue interceptor vue-resource Interceptor usage detailed explanation
The so-called interceptor is to intercept some files. This article mainly introduces the use of Vue adding request interceptor and vue-resource interceptor. Friends who need it can refer to it. I hope it can help everyone.
1. Phenomenon
Uniform processing of errors and configuration request information
2. Solution
1. Install axios, command: npm install axios --save -dev
2. Create a new file axios.js in the config directory of the root directory with the following content:
import axios from 'axios'
// 配置默认的host,假如你的API host是：http://api.htmlx.club
axios.defaults.baseURL = 'http://api.htmlx.club'
// 添加请求拦截器
axios.interceptors.request.use(function (config) {
// 在发送请求之前做些什么
return config
}, function (error) {
// 对请求错误做些什么
return Promise.reject(error)
});
// 添加响应拦截器
axios.interceptors.response.use(function (response) {
// 对响应数据做点什么
return response
}, function (error) {
// 对响应错误做点什么
return Promise.reject(error)
});3. Reference it in main.js and configure an alias ($ajax ) to make the call:
import axios from 'axios' import '../config/axios' Vue.prototype.$ajax = axios
As shown in the figure:
4. Application, a login post such as:
this.$ajax({
method: 'post',
url: '/login',
data: {
'userName': 'xxx',
'password': 'xxx'
}
}).then(res => {
console.log(res)
})ps: Let’s take a look at the use of vue-resource interceptor
In the process of using vue-resource in the vue project, a requirement has been temporarily added, which requires adding judgment on token expiration in any http request on any page. If the token has expired, you need to jump to the login page. . If you want to add a judgment to the http request operation in each page, it will be a very large amount of modification work. So does vue-resource have a public callback function that captures any request response? The answer is yes!
vue-resource's interceptors interceptor is the perfect solution to this need. After each http request response, if the interceptor is set as follows, the interceptor function will be executed first to obtain the response body, and then it will be decided whether to return the response to
then for reception. Then we can add judgment on the response status code to this interceptor to decide whether to jump to the login page or stay on the current page and continue to obtain data.
The following code is added to main.js
Vue.http.interceptors.push((request, next) => {
console.log(this)//此处this为请求所在页面的Vue实例
// modify request
request.method = 'POST';//在请求之前可以进行一些预处理和配置
// continue to next interceptor
next((response) => {//在响应之后传给then之前对response进行修改和逻辑判断。对于token时候已过期的判断，就添加在此处，页面中任何一次http请求都会先调用此处方法
response.body = '...';
return response;
});
});Before knowing this method, I thought of a stupid method, but it can also reduce the modification workload to a certain extent. The method is to bind a this.$$http.get method to Vue to replace the this.$http.get method. Just add a $ before $http for each page's http request.
// ajax.js
function plugin(Vue){
Object.defineProperties(Vue.prototype,{
$$http:{
get(){
return option(Vue);
}
}
})
}
function option(Vue){
let v = new Vue();
return {
get(a,b){
let promise = new Promise(function(reslove,reject){
v.$http.get(a,b).then((res)=>{
reslove(res)
},(err)=>{
//处理token过期问题。
})
})
return promise;
}
}
}
module.exports=plugin;
//main.js
import ajax from './ajax.js'
Vue.use(ajax)How has everyone learned? Hurry up and give it a try.
Related recommendations:
How to implement various interceptors in php
Interceptor example code analysis in php
Detailed explanation of page interceptor for WeChat applet development
The above is the detailed content of Vue interceptor vue-resource Interceptor usage detailed explanation. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
What software is crystaldiskmark? -How to use crystaldiskmark?
Mar 18, 2024 pm 02:58 PM
CrystalDiskMark is a small HDD benchmark tool for hard drives that quickly measures sequential and random read/write speeds. Next, let the editor introduce CrystalDiskMark to you and how to use crystaldiskmark~ 1. Introduction to CrystalDiskMark CrystalDiskMark is a widely used disk performance testing tool used to evaluate the read and write speed and performance of mechanical hard drives and solid-state drives (SSD). Random I/O performance. It is a free Windows application and provides a user-friendly interface and various test modes to evaluate different aspects of hard drive performance and is widely used in hardware reviews
How to download foobar2000? -How to use foobar2000
Mar 18, 2024 am 10:58 AM
foobar2000 is a software that can listen to music resources at any time. It brings you all kinds of music with lossless sound quality. The enhanced version of the music player allows you to get a more comprehensive and comfortable music experience. Its design concept is to play the advanced audio on the computer The device is transplanted to mobile phones to provide a more convenient and efficient music playback experience. The interface design is simple, clear and easy to use. It adopts a minimalist design style without too many decorations and cumbersome operations to get started quickly. It also supports a variety of skins and Theme, personalize settings according to your own preferences, and create an exclusive music player that supports the playback of multiple audio formats. It also supports the audio gain function to adjust the volume according to your own hearing conditions to avoid hearing damage caused by excessive volume. Next, let me help you
How to use NetEase Mailbox Master
Mar 27, 2024 pm 05:32 PM
NetEase Mailbox, as an email address widely used by Chinese netizens, has always won the trust of users with its stable and efficient services. NetEase Mailbox Master is an email software specially created for mobile phone users. It greatly simplifies the process of sending and receiving emails and makes our email processing more convenient. So how to use NetEase Mailbox Master, and what specific functions it has. Below, the editor of this site will give you a detailed introduction, hoping to help you! First, you can search and download the NetEase Mailbox Master app in the mobile app store. Search for "NetEase Mailbox Master" in App Store or Baidu Mobile Assistant, and then follow the prompts to install it. After the download and installation is completed, we open the NetEase email account and log in. The login interface is as shown below
How to use Baidu Netdisk app
Mar 27, 2024 pm 06:46 PM
Cloud storage has become an indispensable part of our daily life and work nowadays. As one of the leading cloud storage services in China, Baidu Netdisk has won the favor of a large number of users with its powerful storage functions, efficient transmission speed and convenient operation experience. And whether you want to back up important files, share information, watch videos online, or listen to music, Baidu Cloud Disk can meet your needs. However, many users may not understand the specific use method of Baidu Netdisk app, so this tutorial will introduce in detail how to use Baidu Netdisk app. Users who are still confused can follow this article to learn more. ! How to use Baidu Cloud Network Disk: 1. Installation First, when downloading and installing Baidu Cloud software, please select the custom installation option.
BTCC tutorial: How to bind and use MetaMask wallet on BTCC exchange?
Apr 26, 2024 am 09:40 AM
MetaMask (also called Little Fox Wallet in Chinese) is a free and well-received encryption wallet software. Currently, BTCC supports binding to the MetaMask wallet. After binding, you can use the MetaMask wallet to quickly log in, store value, buy coins, etc., and you can also get 20 USDT trial bonus for the first time binding. In the BTCCMetaMask wallet tutorial, we will introduce in detail how to register and use MetaMask, and how to bind and use the Little Fox wallet in BTCC. What is MetaMask wallet? With over 30 million users, MetaMask Little Fox Wallet is one of the most popular cryptocurrency wallets today. It is free to use and can be installed on the network as an extension
Detailed explanation of obtaining administrator rights in Win11
Mar 08, 2024 pm 03:06 PM
Windows operating system is one of the most popular operating systems in the world, and its new version Win11 has attracted much attention. In the Win11 system, obtaining administrator rights is an important operation. Administrator rights allow users to perform more operations and settings on the system. This article will introduce in detail how to obtain administrator permissions in Win11 system and how to effectively manage permissions. In the Win11 system, administrator rights are divided into two types: local administrator and domain administrator. A local administrator has full administrative rights to the local computer
Detailed explanation of division operation in Oracle SQL
Mar 10, 2024 am 09:51 AM
Detailed explanation of division operation in OracleSQL In OracleSQL, division operation is a common and important mathematical operation, used to calculate the result of dividing two numbers. Division is often used in database queries, so understanding the division operation and its usage in OracleSQL is one of the essential skills for database developers. This article will discuss the relevant knowledge of division operations in OracleSQL in detail and provide specific code examples for readers' reference. 1. Division operation in OracleSQL
Teach you how to use the new advanced features of iOS 17.4 'Stolen Device Protection'
Mar 10, 2024 pm 04:34 PM
Apple rolled out the iOS 17.4 update on Tuesday, bringing a slew of new features and fixes to iPhones. The update includes new emojis, and EU users will also be able to download them from other app stores. In addition, the update also strengthens the control of iPhone security and introduces more "Stolen Device Protection" setting options to provide users with more choices and protection. "iOS17.3 introduces the "Stolen Device Protection" function for the first time, adding extra security to users' sensitive information. When the user is away from home and other familiar places, this function requires the user to enter biometric information for the first time, and after one hour You must enter information again to access and change certain data, such as changing your Apple ID password or turning off stolen device protection.
