将Json对象转换为文件对象 [英] Convert a Json Object to a file Object

问题描述

我有一些Java脚本功能.我正在使用输入类型文件来选择多个文件.在变更事件中，我得到了一个列表文件对象，这些对象已上传，然后将这些对象存储在隐藏字段中.我只想将这些对象检索为文件对象.我该怎么办?

I have some java-script functions. I am using input type file for selecting multiple files. In the on-change event I am getting a list files objects which were uploaded and then I am storing those objects in a hidden field. I want to retrieve those objects as file objects only. How can i accomplish that?

我正在使用的代码如下:-

The code I am using is as follows:-

<input type="file" multiple onchange="ehDisplayFileNames(event);" />

function ehDisplayFileNames(event) {
    myFilesList = $('#' + event.target.id)[0]; // $('#chooseFiles')[0] gives the DOM element of the HTML Element as opposed to $('#store-input') which gives the jQuery object

    $("#FilesToUpload").val(JSON.stringify(filesToUpload));
}

function getAllFiles(){
    var filesToUpload = [];
    filesToUpload = $.parseJSON($("#FilesToUpload").val()); // returns json objects instead i need file objects
}

谢谢您的帮助.

推荐答案

我一直在寻找类似的东西.我最终使用了此处提供的解决方案，因为无法序列化API对象... https://stackoverflow.com/a/20535454/606810

I was looking for a similar thing.. I ended up using the solution provided here as there is no way to serialize API object... https://stackoverflow.com/a/20535454/606810

这是我发现对图像/文件存储有用的另一个来源: https://hacks.mozilla.org/2012/02/saving-images-and-files-in-localstorage/

Here is another source i found useful for image/file storage: https://hacks.mozilla.org/2012/02/saving-images-and-files-in-localstorage/

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