推广小程序前端代码
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// 此方法适用于web
// import OSS from "ali-oss"
import config from '@/config.js'
/**
* 生成一个随机的Key
*/
function storeKey() {
let s = [];
let hexDigits = "0123456789abcdef";
for (let i = 0; i < 36; i++) {
s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1);
}
s[14] = "4";
s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1);
s[8] = s[13] = s[18] = s[23] = "-";
return s.join("");
}
/**
* 根据当天日期在OSS端生成文件夹
*/
function storeFolder() {
const date = new Date();
const formatNumber = n => {
n = n.toString()
return n[1] ? n : '0' + n
}
return [date.getFullYear(), date.getMonth() + 1, date.getDate()].map(formatNumber).join('-')
}
export function uploadFileToOSS(file) {
uni.showLoading({
title: '上传中...'
});
return new Promise((resolve,reject) => {
// 创建OSS实例
const client = new OSS(config.aliOss.config);
// 设置文件名和文件目录
const suffix = '.' + file.name.split('.').pop();
let key = storeFolder()
if(key[key.length - 1] != '/') key += '/'
const fileName = key + storeKey() + suffix; // 注意:文件名需要是唯一的
// 使用put接口上传文件
client.multipartUpload(fileName, file, {
headers: {
'Content-Disposition': 'inline',
'Content-Type': file.type
}
}).then(res => {
uni.hideLoading();
resolve(config.aliOss.url + res.name);
}).catch(err => {
uni.hideLoading();
reject(err)
})
})
}