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

Related learning recommendations: javascript(Video)

## Create new before use

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

Preview

Experience it

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

For more other excellent articles, please pay attention to the

uni-app column~

The above is the detailed content of Implement image upload JS plug-in based on uni-app. For more information, please follow other related articles on the PHP Chinese website!