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Vue is a popular front-end framework that allows data interaction with the back-end. When data interaction occurs between the front-end and the back-end, it is often necessary to pass data from the front-end to the back-end. So, how do you pass values to the backend in Vue? This article will discuss the following aspects.
1. Use Axios for data requests
Axios is a popular lightweight HTTP client that can be used to make data requests in Vue. The following is the basic usage of Axios:
1. Introduce Axios into Vue:
import axios from 'axios'
2. Send HTTP request:
axios({ method: 'get', url: '/api/getData', params: { id: 1 } }) .then(function (response) { console.log(response.data) }) .catch(function (error) { console.log(error) })
In this example, we are backend A GET request was sent, the request address was '/api/getData', and the request parameter was id=1. When the request is successful, we print the data returned by the backend to the console.
2. Use Fetch to make data requests
Fetch is a native JavaScript API that can also be used to make data requests in Vue. The following is the basic usage of Fetch:
1. Send HTTP request:
fetch('/api/getData?id=1') .then(function (response) { return response.json() }) .then(function (data) { console.log(data) }) .catch(function (error) { console.log(error) })
In this example, we send a GET request to the backend, and the requested address is '/api/getData ', the requested parameter is id=1. When the request is successful, we print the data returned by the backend to the console.
3. Use Vue-resource to make data requests
Vue-resource is a Vue plug-in that can be used to make data requests in Vue. The following is the basic usage of Vue-resource:
1. Introduce Vue-resource into Vue:
import Vue from 'vue' import VueResource from 'vue-resource' Vue.use(VueResource)
2. Send HTTP request:
this.$http.get('/api/getData', { params: { id: 1 } }) .then(function (response) { console.log(response.body) }) .catch(function (error) { console.log(error) })
In this example, We sent a GET request to the backend, the request address was '/api/getData', and the request parameter was id=1. When the request is successful, we print the data returned by the backend to the console.
Summary:
The above are three ways to pass values to the backend in Vue. No matter which method is used, we need to pay attention to the following points:
1. The request address and requested parameters need to correspond to the back-end API.
2. The request method needs to correspond to the backend API.
3. When sending a request, you need to handle the success and failure of the request.
4. You need to pay attention to cross-domain issues when making requests.
The above is an introduction to passing values to the backend in Vue. I hope it will be helpful to readers.
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