在 fine-uploader 中恢复上一会话的文件上传

Question

关闭浏览器后，使用 fine-uploader 恢复先前中断的上传的一般方法是什么？我搜索了文档并尝试了代码，但没有取得任何成功。

我设想使用可恢复的文件以及 "Resume" 和 "Cancel" 按钮（如暂停上传）重新填充上传器。我以为我可以使用 getResumableFilesData() 和 addInitialFiles()，但状态默认为 COMPLETED。如果我应该使用 addFiles()，那么构造输入值的最佳方法是什么？或者，我完全走错了路吗？

如果我遗漏了一些明显的东西，请原谅我。我正在寻找正确方向的帮助。

提前致谢！

这是我的精美上传器模板：

  <script type="text/template" id="qq-template">
    <div class="qq-uploader-selector qq-uploader" qq-drop-area-text="Drop files here">
        <div class="qq-total-progress-bar-container-selector qq-total-progress-bar-container progress total_progress">
            <div role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100" 
                class="qq-total-progress-bar-selector progress-bar"></div>
        </div>
        <div class="qq-upload-drop-area-selector qq-upload-drop-area" qq-hide-dropzone>
            <span class="qq-upload-drop-area-text-selector"></span>
        </div>
        <div class="qq-upload-button-selector btn btn-default">
            <div><span class="glyphicon glyphicon-plus"></span> Browse
                Files</div>
        </div>
        <br><br>
            <span class="qq-drop-processing-selector qq-drop-processing">
                <span>Processing dropped files...</span>
                <span class="qq-drop-processing-spinner-selector qq-drop-processing-spinner"></span>
            </span>
        <ul class="qq-upload-list-selector qq-upload-list" aria-live="polite" aria-relevant="additions removals">
            <li>
                <div class="qq-progress-bar-container-selector progress">
                    <div role="progressbar" aria-valuenow="0" aria-valuemin="0" aria-valuemax="100" class="qq-progress-bar-selector progress-bar"></div>
                </div>
                <span class="qq-upload-spinner-selector qq-upload-spinner"></span>
                <span class="qq-upload-file-selector qq-upload-file"></span>
                <span class="qq-edit-filename-icon-selector qq-edit-filename-icon" aria-label="Edit filename"></span>
                <input class="qq-edit-filename-selector qq-edit-filename" tabindex="0" type="text">
                <span class="qq-upload-size-selector qq-upload-size"></span>
                <button type="button" class="btn btn-default btn-sm qq-upload-cancel-selector">Cancel</button>
                <button type="button" class="btn btn-default btn-sm qq-upload-retry-selector">Retry</button>
                <button type="button" class="btn btn-default btn-sm qq-upload-delete-selector qq-upload-delete">Delete</button>
                <button type="button" class="btn btn-default btn-sm qq-upload-pause-selector">Pause</button>
                <button type="button" class="btn btn-default btn-sm qq-upload-continue-selector">Continue</button>

                <span role="status" class="qq-upload-status-text-selector qq-upload-status-text"></span>
            </li>
        </ul>

        <dialog class="qq-alert-dialog-selector">
            <div class="qq-dialog-message-selector"></div>
            <div class="qq-dialog-buttons">
                <button type="button" class="qq-cancel-button-selector">Close</button>
            </div>
        </dialog>

        <dialog class="qq-confirm-dialog-selector">
            <div class="qq-dialog-message-selector"></div>
            <div class="qq-dialog-buttons">
                <button type="button" class="qq-cancel-button-selector">No</button>
                <button type="button" class="qq-ok-button-selector">Yes</button>
            </div>
        </dialog>

        <dialog class="qq-prompt-dialog-selector">
            <div class="qq-dialog-message-selector"></div>
            <input type="text">
            <div class="qq-dialog-buttons">
                <button type="button" class="qq-cancel-button-selector">Cancel</button>
                <button type="button" class="qq-ok-button-selector">Ok</button>
            </div>
        </dialog>
    </div>
</script>

这是我的精细加载器配置。

    var uploader = $('#fine-uploader').fineUploader({
        template: 'qq-template',
        debug: true,
        callbacks: {
            onAllComplete: function(succeeded, failed) {
                $('#doclib_tree').jstree(true).refresh()
                if (failed.length > 0) {
                    alert("Error: Some files were not uploaded");
                } else {
                    if (succeeded.length > 0 ) {
                        alert("Successfully uploaded " + succeeded.length + " file(s)");
                    }
                    this.reset();
                    toggle_upload();
                }
            },
            onError: function(id, name, errorReason, xhrOrXdr) {
                alert("Error uploading " + name + ".  Reason: " + errorReason)
            },
            onSubmit: function(id, name) {
                var promise = new qq.Promise();
                var dest = document.getElementById('dest_label').innerHTML.replace(/ &gt; /g, "/")
                $.ajax({
                    'type': 'POST',
                    'async': false,
                    'url': "/documents/exists" ,
                    'data': {
                        'parents' : get_path(dest),
                        'name': name,
                    },
                    'success': function(data, textStatus, jqHXR) {
                        if ( check_session(data) ) {
                            promise.failure();
                        } else {
                            if (confirm("The file '" + dest + "/" + name + "' already exists.  Replace?"))
                                promise.success();
                            else
                                promise.failure();
                        }
                    },
                    'error': function(jqHXR, textStatus, errorThrown) {
                        promise.success();
                    }
                });
                return promise;
            },
        },
        chunking: {
            enabled: true,
            partSize: 20000000, // 20MB
            success: {
                endpoint: "/documents/upload?success=1",
            }
        },
        resume: {
            enabled: true
        },
        request: {
            endpoint: "/documents/upload",
        },
        autoUpload: true
    });

这是我想在初始化时检索和显示可恢复文件的代码。我确实得到了一个填充的 resumes 数组。

    var resumes = uploader.fineUploader('getResumableFilesData')
    if ( resumes > 0 ) {
        // Should I be doing something different here?
        uploader.fineUploader('addFiles', resumes)
    }

Answer 1

Fine Uploader stores information about the progress of interrupted files in the browser's local storage. 如果同一文件在随后的 browser/upload 会话中再次添加到上传器，Fine Uploader 将从最后一个 failed/interrupted 块开始上传该文件。

如果你想提示你的用户重新添加中断的文件，你当然可以这样做。 getResumableFilesData() will tell you about interrupted files that can be resumed, provided the user re-submits those files to the uploader via DnD or a file input element (or the addFiles API 方法）。

Answer 2

如果您可以使用替代品，我建议使用这些现代库：

https://github.com/23/resumable.js

和

https://github.com/flowjs/flow.js（即基于相同的resumable.js）

在 fine-uploader 中恢复上一会话的文件上传

Resume file uploads from previous session in fine-uploader

fine-uploader