Uniapp is a cross-platform development tool that many developers often use to develop mobile applications. In this tool, the POST method is often used for data transmission, but sometimes the POST method cannot be used. This article will introduce the reasons why the POST method cannot be used and the solutions.
1. Reason analysis
The POST method cannot be used in Uniapp. In most cases, it is because the uni-ajax plug-in is not installed. The uni-ajax plug-in is a plug-in for sending HTTP requests in Uniapp. You can use this plug-in to send HTTP requests very conveniently. If the developer does not install this plug-in, the POST method will not work.
2. Solution
Normally, if you want to successfully use the POST method in Uniapp, you only need to install the uni-ajax plug-in. Next, we will introduce in detail how to install the uni-ajax plug-in.
The first step is to open the uni-ajax official website and copy the official npm installation command to the terminal and run it.
npm install uni-ajax -S
The second step, after installing the uni-ajax plug-in, you need to introduce and register the uni-ajax plug-in in the app.vue file. Add the following code in the app.vue file.
import Vue from 'vue' import App from './App' import uniAjax from './uni-ajax/uni-ajax.js' Vue.prototype.$uniAjax = uniAjax Vue.config.productionTip = false App.mpType = 'app' const app = new Vue({ ...App }) app.$mount()
The third step is to send HTTP requests through this.$uniAjax.post() method on any page. An example is as follows:
export default { data () { return { } }, methods: { postTest () { this.$uniAjax.post('https://api.apiopen.top/getJoke?page=1&count=2&type=video', { data: '' }, function(res) { console.log(res.data) }) } } }
Through the above three steps, we can successfully use the POST method for data transmission in Uniapp.
Summary: This article introduces the reasons why the POST method cannot be used in Uniapp and the solutions. Whether in the development process or in daily use, it is very important to master the use of the POST method. When the POST method cannot be used, follow the above steps to install and configure it accordingly and you can use it smoothly.
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