Home Web Front-end Vue.js Interpretation of the implementation principle of Vue Router redirection function

Interpretation of the implementation principle of Vue Router redirection function

Sep 15, 2023 pm 12:40 PM
Redirect Implementation principle vue router

Vue Router 重定向功能的实现原理解读

Interpretation of the implementation principle of Vue Router redirection function

When using Vue.js for project development, we often use Vue Router to perform page routing jumps and management. In addition to regular routing functions, Vue Router also provides a redirection function, which can redirect routes. This article will introduce the implementation principle of Vue Router redirection function and give specific code examples.

Vue Router redirection feature allows us to automatically redirect users to another route when certain conditions are met. For example, when a user visits a page that requires login, we want to automatically redirect the user to the login page if the user is not logged in. This is a common application scenario of the redirect function.

In Vue Router, we can implement the redirection function by setting the redirect field in the routing configuration. The following is a simple example:

const router = new VueRouter({
  routes: [
    {
      path: '/home',
      name: 'home',
      component: Home
    },
    {
      path: '/login',
      name: 'login',
      component: Login
    },
    {
      path: '/dashboard',
      name: 'dashboard',
      component: Dashboard,
      redirect: '/home'  // 实现重定向
    }
  ]
})
Copy after login

In the above code, we defined three routes, among which /home and /login correspond to the Home component and Login component. The /dashboard route corresponds to the Dashboard component, and the redirect field is set to redirect users to /home## when accessing the /dashboard route. # Routing.

The principle of implementing this redirection function is to monitor route changes. When the user accesses the route that needs to be redirected, redirect him or her to the specified route. Vue Router provides the

beforeEach navigation guard, through which we can implement the redirection function.

The following is the actual code implementation of the redirection function:

router.beforeEach((to, from, next) => {
  if (to.path === '/dashboard') {  // 判断用户是否访问的是需要重定向的路由
    next('/home')  // 重定向到指定的路由
  } else {
    next()  // 继续访问原始路由
  }
})
Copy after login
In the above code, the

beforeEach navigation guard will be called every time the route changes. It receives three parameters: to, from and next. The to parameter represents the target route, the from parameter represents the current route, and the next parameter represents the function to continue accessing.

In the

beforeEach navigation guard, we determine whether the user accesses a route that requires redirection. If so, we call next('/home') to redirect the user to the specified route /home. If not, we call next() to continue accessing the original route.

Through the above code, we successfully implemented the Vue Router redirection function. When a user accesses the

/dashboard route, he or she will be automatically redirected to the /home route.

To summarize, Vue Router's redirection function is implemented by setting the

redirect field and using the beforeEach navigation guard. We can set up multiple redirect routes as needed to implement complex redirect logic.

I hope this article will help you understand the implementation principle of Vue Router redirection function.

The above is the detailed content of Interpretation of the implementation principle of Vue Router redirection function. For more information, please follow other related articles on the PHP Chinese website!

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot Article Tags

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Understand common application scenarios of web page redirection and understand the HTTP 301 status code Understand common application scenarios of web page redirection and understand the HTTP 301 status code Feb 18, 2024 pm 08:41 PM

Understand common application scenarios of web page redirection and understand the HTTP 301 status code

Redirect tutorial in PHP Redirect tutorial in PHP Sep 01, 2023 pm 05:53 PM

Redirect tutorial in PHP

How to use Vue Router for routing jump in uniapp How to use Vue Router for routing jump in uniapp Oct 18, 2023 am 08:52 AM

How to use Vue Router for routing jump in uniapp

PHP domain name redirection example demonstration and effect display PHP domain name redirection example demonstration and effect display Mar 28, 2024 am 08:21 AM

PHP domain name redirection example demonstration and effect display

Interpreting HTTP Status Code 302: A Deep Dive into Redirects and Temporary Jumps Interpreting HTTP Status Code 302: A Deep Dive into Redirects and Temporary Jumps Dec 26, 2023 am 08:09 AM

Interpreting HTTP Status Code 302: A Deep Dive into Redirects and Temporary Jumps

In-depth understanding of the underlying implementation mechanism of Kafka message queue In-depth understanding of the underlying implementation mechanism of Kafka message queue Feb 01, 2024 am 08:15 AM

In-depth understanding of the underlying implementation mechanism of Kafka message queue

Detailed explanation of the operating mechanism and implementation principles of PHP core Detailed explanation of the operating mechanism and implementation principles of PHP core Nov 08, 2023 pm 01:15 PM

Detailed explanation of the operating mechanism and implementation principles of PHP core

Performance optimization tips for Vue Router redirection function Performance optimization tips for Vue Router redirection function Sep 15, 2023 am 08:33 AM

Performance optimization tips for Vue Router redirection function

See all articles