webupload编辑回显解决方案

webupload java参考：http://blog.csdn.net/finalAmativeness/article/details/54668090

回显参考：

https://segmentfault.com/q/1010000007428390/a-1020000007720692

(未实践) http://blog.csdn.net/wxniitxueyuan/article/details/50476610

//初始化
var uploader = WebUploader.Uploader({...});

var getFileBlob = function (url, cb) {
  var xhr = new XMLHttpRequest();
  xhr.open("GET", url);
  xhr.responseType = "blob";
  xhr.addEventListener('load', function() {
  cb(xhr.response);
  });
  xhr.send();
};

var blobToFile = function (blob, name) {
  blob.lastModifiedDate = new Date();
  blob.name = name;
  return blob;
};

var getFileObject = function(filePathOrUrl, cb) {
  getFileBlob(filePathOrUrl, function (blob) {
  cb(blobToFile(blob, 'test.jpg'));
  });
};

//需要编辑的图片列表
var picList = ['图片url','图片url','图片url','图片url' ]
$.each(picList, function(index,item){
  getFileObject(item, function (fileObject) {
    var wuFile = new WebUploader.Lib.File(WebUploader.guid('rt_'),fileObject);
    var file = new WebUploader.File(wuFile);
    uploader.addFiles(file)
  })
});