Implement image upload JS plug-in based on uni-app

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## Create new before use

All methods return promise objects. You can use then() to write subsequent business or use async await

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H5 address http://uni_upload.gek6.com/uploader/#/

Server return example

{ "code":0, "msg":"上传成功", "data":"http://www.test.com/uploads/20190227/f2824d2d4dc38f30699f816226b4a578.jpg"}复制代码

directly Upload the source code

/* 2019-02-27 lane 封装 uni-app 图片上传功能 使用前先new 一下 所有方法均返回 promise 对象 可使用then() 写后续业务 或 使用 async await 服务端返回示例 { "code":0, "msg":"上传成功", "data":"http://www.test.com/uploads/20190227/f2824d2d4dc38f30699f816226b4a578.jpg" } choose 选择图片 参数 num 为要选择的图片数量 upload_one 上传一张图片 参数 path 选择成功后返回的 缓存文件图片路径 upload 上传多张图片 参数 path_arr 选择图片成功后 返回的图片路径数组 choose_and_upload 选择图片并上传 参数 num 为要选择的图片数量 */ // 引入配置信息或者自己创建个 config 对象 // import config from "../config.js";let config = { // 上传图片的API upload_img_url:'http://uni_upload.gek6.com/index.php/index/upload'} class Uploader { constructor() { } choose(num) { return new Promise((resolve, reject) => { uni.chooseImage({ count: num, success(res) { // console.log(res); // 缓存文件路径 resolve(res.tempFilePaths) }, fail(err) { console.log(err) reject(err) } }) }) } upload_one(path) { return new Promise((resolve, reject) => { uni.showLoading({ title:'上传中' }) uni.uploadFile({ url: config.upload_img_url, //仅为示例，非真实的接口地址 filePath: path, name: 'file', success: (uploadFileRes) => { if("string"===typeof uploadFileRes.data){ resolve(JSON.parse(uploadFileRes.data).data) }else{ resolve( uploadFileRes.data.data ) } }, complete() { uni.hideLoading() } }); }) } upload(path_arr) { let num = path_arr.length; return new Promise(async (resolve, reject) => { let img_urls = [] for (let i = 0; i < num; i++) { let img_url = await this.upload_one(path_arr[i]); console.log(img_url) img_urls.push(img_url) }; console.log("全部上传成功") resolve(img_urls) }) } choose_and_upload(num) { return new Promise(async (resolve, reject) => { let path_arr = await this.choose(num); let img_urls = await this.upload(path_arr); resolve(img_urls); }) } }export default Uploader;复制代码

choose Choose a picture

参数 num 为要选择的图片数量 返回 图片缓存路径 数组复制代码

upload_one Upload a picture

参数 path 选择成功后返回 远程图片路径复制代码

upload Upload multiple pictures

参数 path_arr 选择图片成功后 返回远程图片路径数组复制代码

choose_and_upload Choose a picture and upload

参数 num 为要选择的图片数量 返回 图片缓存路径 数组复制代码

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