我可以使用 fileEntry 对象（我有 fileEntry 对象列表）使用 chrome 应用程序上传文件吗？

Question

我有一个目录的retainEntry，所以我可以遍历它并获取FileEntry Objects 的列表，但是我想上传这些文件，所以我可以使用FileEntry Object 附加到formdata 对象中并上传它吗？

Menifest.json

"permissions": [
    "alarms","notifications", {"fileSystem": ["write", "retainEntries", "directory"]},
    "storage","http://*/*",
        "https://*/*"
  ],

我的 Action.js

    var chooseDirButton = document.querySelector('#choose_dir');
    var outputdir = document.querySelector('#outputdir');
    chooseDirButton.addEventListener('click', function(e) {chrome.fileSystem.chooseEntry({type: 'openDirectory'}, function(theEntry) {
    chrome.storage.local.set({'chosenFile': chrome.fileSystem.retainEntry(theEntry)});
     loadDirEntry(theEntry)
    });
});



   function loadDirEntry(_chosenEntry) {
      chosenEntry = _chosenEntry;
      if (chosenEntry.isDirectory) {
        var dirReader = chosenEntry.createReader();
        var entries = [];
        // Call the reader.readEntries() until no more results are returned.
        var readEntries = function() {
           dirReader.readEntries (function(results) {
            if (!results.length) {
              console.log(entries.join("\n"));
              displayEntryData(chosenEntry);
            }
            else {
              results.forEach(function(item) {
                // here irem is FileEntry Object , how can i upload file using this FileEntry Object?
                chrome.fileSystem.getDisplayPath(item, function(path) {
                 entries = entries.concat(path);
               });
                entries = entries.concat(item.fullPath);
              });
              readEntries();
            }
          }, errorHandler);
        };

        readEntries(); // Start reading dirs.
      }
    }

参考：Chrome File System Example

Answer 1

正如@gengkev 在评论中所说，使用entry.file(function(f) { ... }) 提取可用于表单提交的File 对象。