準(zhǔn)備好配置文件 config.js

export const uploadImageUrl = 'https://+"桶名"+Endpoint/';//服務(wù)器域名
    export const AK= 'AK'; //密鑰
    export const SK = 'SK'; //密鑰
    export const timeout = 87600; //超時(shí)時(shí)間
    export const maxSize = 1024 * 1024 * 1024; //最大支持上傳的容量
    export const PermissionPath = '路徑' //服務(wù)器上傳路徑

封裝上傳方法

const env = require("./config.js");
 const Base64 = require("./js-base64.js");  //官方下載
 const Crypto = require("./crypto-js.js");//官方下載

 /**
  * @param {*} options 自定義拓展參數(shù)
  */
 const uploadFile = function (options) {
   
   let {
       filePath, // 文件地址
       success,
       progress,
       fail
   } = options;
   
   
   // policy編碼計(jì)算方法
   let getPolicyEncode = (policy) => {
       // 傳入表單上傳的policy字段钦扭，對policy進(jìn)行Base64編碼
       let encodedPolicy = Base64.encode(JSON.stringify(policy));
       return encodedPolicy;
   };
   
   // 簽名計(jì)算方法
   let getSignature = (policyEncoded, SecretKey) => {
       // 利用SK對Base64編碼后的policy結(jié)果進(jìn)行HMAC-SHA1簽名計(jì)算
       let bytes = Crypto.HmacSHA1(policyEncoded, SecretKey);
       // 對計(jì)算結(jié)果進(jìn)行Base64編碼床绪，得到最終的簽名信息
       let signature = Crypto.enc.Base64.stringify(bytes);
       return signature;
   };
   
   
   //時(shí)間格式
   let time = new Date();
   let year = time.getFullYear();
   let month = time.getMonth() + 1;
   let day = time.getDate();
   //路徑權(quán)限 + 項(xiàng)目code + '年/月/日'+ '隨機(jī)字符' 
   let projectCode = uni.getStorageSync('userInfo').projectCode;
   // 文件保存名
   let aliyunFileKey = env.PermissionPath + projectCode + `/${year}/${month}/${day}/` + uni.$u.guid(20) + '.aac';
   
   // 設(shè)定policy內(nèi)容，policy規(guī)則定義可參考步驟1中的超鏈接簽名計(jì)算規(guī)則文檔
   let date = new Date();
   date.setHours(date.getHours() + env.timeout);
   let OBSPolicy = {
     "expiration": date.toISOString(),
     "conditions": [
       { "bucket": "vd-asr" },  // 桶名要和配置文件中endpoint中的桶名保持一致
       { 'key': aliyunFileKey } // 很重要這一步 必須帶上
     ]
   };
   
   // 官方的方法調(diào)用
   let policyEncoded = getPolicyEncode(OBSPolicy);                    // 計(jì)算base64編碼后的policy
   let signature = getSignature(policyEncoded, env.OSSAccessKeyId);     // 計(jì)算signature
   
   // 發(fā)起請求
   return new Promise( (resolve,reject) => {
       uni.uploadFile({
           url: env.uploadImageUrl,
           name: 'file',
           filePath: filePath,
           header:{
                'Content-Disposition':'attachment'
           },
           
           formData: {
               'AccessKeyId': env.AccessKeySecret,
               'policy': policyEncoded,
               'signature': signature,
               'key': aliyunFileKey
           },
           
           success: (res) => {
               console.log("-----success------------------")
               console.log('===== 上傳成功：', res);
               resolve(env.uploadImageUrl+aliyunFileKey)
               // 異步結(jié)束標(biāo)識
               // resolve();
           },
        
           fail: (err) => {
               console.log("-------fail----------------")
               console.log(err)
               reject(false)
           },
           
       });
   });
 
 };

 module.exports = uploadFile;  //導(dǎo)出方法