//監(jiān)聽文件變化document.getElementById('file').onchange = function() {          let file = this.files[0];          let type = file.type          //初始化文件上傳          initUploadObj(that, file.name, file, 'image', function(res) {            if (res.success) {              that.$message.success(res.msg)            } else {              that.$message.warning(res.msg)            }          })        }

/** * 初始化上傳文件對(duì)象 * @param {object} Vue * @param {string} fileName 文件名 * @param {object} file 上傳的文件流及文件類型 名稱相關(guān)信息 * @param {Array} 允許上傳的文件類型 * @param {function} uploadStatusCallbalck * @return {function} 返回回調(diào)函數(shù) */export const initUploadObj = function (Vue,fileName,file,type,uploadStatusCallbalck) { let fileInfo = {  file_name: fileName,  media_type: 2,  media_sub_type: 0,  size_of_bytes: 122,  file_expired_type: 'permanent', }; //前端做文件類型限制 if(type == 'image'){  type = ['.jpg','.gif','.jpeg','.bmp','.png'] } if(type == 'excel'){  type = ['.xlsx'] } let fileType =file.name ? file.name.substring(file.name.lastIndexOf(".")).toLowerCase() : '';  if (!!type && type.indexOf (fileType) < 0) {  uploadStatusCallbalck ({success: false, msg: '請(qǐng)上傳正確的'+type+'文件格式!'});  return; } var cos = new COS ({  getAuthorization: function (options, callback) {   let singleInfo = Vue.$store.state.fileToken;   callback ({    TmpSecretId: singleInfo.tmpSecretId,    TmpSecretKey: singleInfo.tmpSecretKey,    XCosSecurityToken: singleInfo.sessionToken,    ExpiredTime: singleInfo.expiredTime,   });  }, }); fileInfo.file_name = file.name; //獲取文件上傳密鑰 getFileToken (Vue, fileInfo, cos, file, uploadStatusCallbalck);};

function getFileToken (Vue, fileInfo, cos, file, uploadStatusCallbalck) { let url = process.env.VUE_APP_URL + '/file/secretid'; if (!file) return; // 異步獲取臨時(shí)密鑰 axios  .get (url)  .then (function (res) {   if (res.data.code == 100000) {    //獲取的臨時(shí)秘鑰存儲(chǔ)在vuex中    Vue.$store.commit ('UPDATE_FILE_INFO', res.data.data);    uploadFile (cos, file, res.data.data, uploadStatusCallbalck);   } else {    uploadStatusCallbalck ({success: false, msg: '獲取文件秘鑰失敗!'});   }  })  .catch (function (err) {   uploadStatusCallbalck ({success: false, msg: '獲取文件秘鑰接口出錯(cuò)!'});  });}

/** * @method uploadFile * @param {object} cos */function uploadFile (cos, file, signInfo, callback) { cos.putObject (  {   Bucket: process.env.VUE_APP_BUCKET,   Region: 'ap-shanghai',   Key: signInfo.fileId,   Body: file,   onHashProgress: function (progressData) {    console.log ('校驗(yàn)中', JSON.stringify (progressData));   },   onProgress: function (progressData) {    console.log ('上傳中', JSON.stringify (progressData));   },  },  function (err, data) {   if (err) {    console.log (err);    callback ({success: false, msg: '文件上傳失敗!'});    return;   }   callback ({success: true, msg: '上傳成功!', data: data, signInfo: signInfo});  } );}