微信小程序上传图片到阿里OSS

https://www.jianshu.com/p/e159c12e60fb
//参考 https://help.aliyun.com/document_detail/32077.html?spm=a2c4g.11186623.6.1220.1e4177a3nVKaEc
// https://blog.csdn.net/delebasou/article/details/85237941
// https://blog.csdn.net/qq_38523017/article/details/87712818
// https://blog.csdn.net/qq_38523017/article/details/87714246
// 获取私有url：https://blog.csdn.net/aku3927/article/details/95049165
// STS:https://blog.csdn.net/qq_31001061/article/details/123935411
//我根据这个做出来的，但是我的buket是私有的，需要使用STS签名，所以还需要加上'x-oss-security-token':securityToken securityToken是后台获取的，
https://blog.csdn.net/weixin_42112865/article/details/90414065

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wx.uploadFile({         url: aliyunServerURL, //开发者服务器 url         filePath: filePath, //要上传文件资源的路径         name: 'file', //必须填file         formData: {             'key': aliyunFileKey,             'policy': policyBase64,             'OSSAccessKeyId': accessid,             'signature': signature,             'success_action_status': '200',             'x-oss-security-token': securityToken // 使用STS签名时必传(后台接口提供)         },         success: function(res) {             debugger             if (res.statusCode != 200) {                 failc(new Error('上传错误:' + JSON.stringify(res)))                 return;             }             successc(aliyunServerURL + aliyunFileKey);         },         fail: function(err) {             debugger             err.wxaddinfo = aliyunServerURL;             failc(err);         },     });

阿里云OSS，nodejs获取私有url

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// npm i ali-oss const OSS = require('ali-oss');   const client = new OSS({   accessKeyId: '你自己的key id',   accessKeySecret: '你自己的key secret',   bucket: 'bucket 名字',   endpoint: 'bucket所处的地址，例如：https://oss-cn-shenzhen.aliyuncs.com' }); // 文件路径名称，过期时间" let signUrl = client.signatureUrl('文件路径名称', {expires: 86400}); console.log(signUrl);