How to reset password on vue login page

As a commonly used front-end framework, Vue.js is generally used to build single-page applications (SPA) in web development. In actual development, we usually encounter scenarios that require user login. In some cases, users may forget their passwords, which requires us to provide a password reset function. This article will introduce how to implement the function of user reset password in Vue.js.

1. Design a password reset page

First, we need to design a page for users to reset their password. This page should contain the following elements:

• A form with fields for entering a new password and confirming the password.
• A submit button used to submit a request to reset the password.

As shown below:

2. Create route

In Vue.js, we A routing plug-in is required to implement routing management for single-page applications. Therefore, before implementing the reset password function, we need to create a route first. If you haven't used the Vue.js routing plugin yet, please check out the "Routing" chapter in the official Vue.js documentation. Here, I assume you have learned how to create routes in Vue.js.

We can define a new route in the routing settings for rendering the reset password page. As shown below:

{
  path: '/reset-password/:token',
  name: 'reset-password',
  component: ResetPassword
},

Here we use dynamic routing to pass the reset password token. This token can be included in reset password requests to authenticate the user.

3. Implementing the password reset function

Once we set up the routing, we can start to implement the password reset function. First, we need to get the reset password token from the route when the page is rendered, as shown below:

mounted() {
  this.token = this.$route.params.token;
}

Next, we need to bind a click event to the submit button for submitting the user's new password. In this event, we will send a POST request to reset the password, as shown below:

methods: {
  onSubmit() {
    if (this.password !== this.confirmPassword) {
      alert('两次密码输入不一致');
      return;
    }

    fetch('http://localhost:8080/api/reset-password', {
      method: 'POST',
      headers: {
        'Content-Type': 'application/json'
      },
      body: JSON.stringify({
        password: this.password,
        confirmPassword: this.confirmPassword,
        token: this.token
      })
    })
    .then(response => response.json())
    .then(data => {
      if (data.success) {
        alert('重置密码成功');
        this.$router.push('/login');
      } else {
        alert(data.message);
      }
    });
  }
}

In the above code, we send a password reset request to the backend through the fetch() function POST request. We include the submitted data in the body of the request and set the Content-Type to application/json in the headers. Finally, we determine whether the request was successful by processing the server's response data. If successful, we can jump to the login page (or other page).

4. Backend implementation

Finally, we need to implement the reset password interface on the server side. To simplify the problem, it is assumed that we use Node.js Express to build the server.

First, we need to define a route that specifically handles reset password requests. This route should contain a POST request to receive data requests from the frontend.

const express = require('express');
const router = express.Router();

router.post('/reset-password', (req, res) => {
  const { password, confirmPassword, token } = req.body;

  // ...
});

Next, we need to write business logic in routing to verify user identity and change password.

const express = require('express');
const router = express.Router();

router.post('/reset-password', (req, res) => {
  const { password, confirmPassword, token } = req.body;

  // 验证密码
  if (password !== confirmPassword) {
    return res.status(400).json({ success: false, message: '两次密码输入不一致' });
  }

  // 验证 token
  if (token !== '123456') {
    return res.status(400).json({ success: false, message: '验证失败' });
  }

  // 修改密码
  // TODO: 在这里实现修改密码的业务逻辑

  res.json({ success: true });
});

In the above route, we obtain the submitted data from the front end through req.body. Next, we performed two verifications: verifying the password and verifying the token. If validation fails, we will return an error response. Otherwise, we can implement the password modification operation in the business logic.

In actual development, the business logic of changing passwords may require connecting to the database to save data. Here we simply demonstrate how to receive data from the front end and implement business logic based on the received data.

Summary

Here, we have introduced how to implement the function of changing passwords in Vue.js. In order to implement this function, we need to define a route to render the page, bind the click event of the submit button, and implement the corresponding business logic on the server side. Although this article is just a sample code snippet, you can extend it as an outline for a project.

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