[图片] OSSAccessKeyId和accessKeySecret从服务器获取。 signature和policy是前端生成的， 这是请求参数 [图片] 这是代码 handleUpload = async (files:any) => { Taro.showToast({title: '上传中'}) let { dir, ossToken } = this.state const policyBase64 = this.getPolicyBase64() const signature = this.getSignature(policyBase64) console.log('ossToken', ossToken) let newArr = files.map((item:any) => { let formData = { key: dir + item.substring(item.lastIndexOf('/')+1), policy: policyBase64, OSSAccessKeyId: (ossToken as any).accessKeyId, signature, success_action_status: '200' } console.log('formData', formData) return Taro.uploadFile({ url: (ossToken as any).filePath, filePath: item, header: { "Content-Type": "multipart/form-data" }, name: 'file', formData }) }) let resArr = await Promise.all(newArr) Taro.hideLoading() console.log(resArr) } getPolicyBase64 = ():string => { let date = new Date(); date.setHours(date.getHours() + 700 * 1000); let srcT = date.toISOString(); const policyText = { "expiration": srcT, //设置该Policy的失效时间，超过这个失效时间之后，就没有办法通过这个policy上传文件了 "conditions": [ ["content-length-range", 0, 5*1024 * 1024] // 设置上传文件的大小限制,5mb ] }; const policyBase64 = Base64.encode(JSON.stringify(policyText)); return policyBase64 } getSignature = (policyBase64:string) => { let { ossToken } = this.state const accesskey = (ossToken as any).accessKeySecret const signature = Crypto.enc.Base64.stringify(Crypto.HmacSHA1(accesskey, policyBase64)) console.log(signature) return signature }

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