這篇文章主要講解了“微信小程序中前端promise怎么封裝”,文中的講解內容簡單清晰,易于學習與理解,下面請大家跟著小編的思路慢慢深入,一起來研究和學習“微信小程序中前端promise怎么封裝”吧!
config.js
const config = {
base_url_api : "https://douban.uieee.com/v2/movie/",
}
export {config}http.js
import { config } from "../config";
class HTTP {
requset({ url, method = "GET", data = {} }) {
const promise = new Promise((resolve, reject) => {
wx.request({
url: config.base_url_api + url,
data,
method,
header: {
'Content-Type': 'json'
},
success: res => {
//狀態碼 toString() 轉成字符串
const statusCode = res.statusCode.toString();
if (statusCode.startsWith("2")) {
resolve(res.data)
} else {
this._show_error();
}
},
fail: res => {
reject(err);
this._show_error();
}
})
})
return promise;
}
_show_error() {
wx.showToast({
title: '網絡錯誤',
icon: 'none'
})
}
}
export { HTTP }model/movie.js
import {HTTP} from "../utils/http";
class MovieModel extends HTTP{
getInTheaters(){
return this.requset({
url:"in_theaters"
})
}
getTop250(){
return this.requset({
url:"top250"
})
}
getComingSoon(){
return this.requset({
url:"coming_soon"
})
}
}
export {MovieModel};pages/index/index.js
const app = getApp();
import {MovieModel} from "../../model/movie";
const movieModel = new MovieModel();
Page({
onLoad(){
// movieModel.getInTheaters().then(res=>{
// console.log(res)
// })
const inTheaters = movieModel.getInTheaters()
const top250 = movieModel.getTop250();
const comingSoon = movieModel.getComingSoon();
Promise.all([inTheaters,top250,comingSoon]).then(res=>{
let[inTheaters,top250,comingSoon] = res;
console.log(inTheaters)
})
}
})感謝各位的閱讀,以上就是“微信小程序中前端promise怎么封裝”的內容了,經過本文的學習后,相信大家對微信小程序中前端promise怎么封裝這一問題有了更深刻的體會,具體使用情況還需要大家實踐驗證。這里是億速云,小編將為大家推送更多相關知識點的文章,歡迎關注!
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