如何从content

本文介绍了如何从content-disposition获取文件名的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我下载了文件作为ajax的响应。如何从内容处理中获取文件名和文件类型，并为其显示缩略图。我有很多搜索结果，但找不到正确的方法。

I Downloaded file as response of ajax. How to get file name and file type from content-disposition and display thumbnail for it. i got many search results but couldn't find right way.

$(".download_btn").click(function () { var uiid = $(this).data("id2"); $.ajax({ url: "localhost:8080/prj/" + data + "/" + uiid + "/getfile", type: "GET", error: function (jqXHR, textStatus, errorThrown) { console.log(textStatus, errorThrown); }, success: function (response, status, xhr) { var header = xhr.getResponseHeader('Content-Disposition'); console.log(header); } });

控制台输出： inline; filename = demo3.png

推荐答案

这是我的方法在某个时候使用它。我假设您提供附件作为服务器响应。

Here is how I used it sometime back. I'm assuming you are providing the attachment as a server response.

我从我的REST服务中设置这样的响应头 response.setHe ader（Content-Disposition，attachment; filename = XYZ.csv）;

I set the response header like this from my REST service response.setHeader("Content-Disposition", "attachment;filename=XYZ.csv");

function(response, status, xhr){ var filename = ""; var disposition = xhr.getResponseHeader('Content-Disposition'); if (disposition && disposition.indexOf('attachment') !== -1) { var filenameRegex = /filename[^;=\n]*=((['"]).*?\2|[^;\n]*)/; var matches = filenameRegex.exec(disposition); if (matches != null && matches[1]) { filename = matches[1].replace(/['"]/g, ''); } } }

编辑：编辑答案以适合您的问题 - 使用单词内联而不是附件

function(response, status, xhr){ var filename = ""; var disposition = xhr.getResponseHeader('Content-Disposition'); if (disposition && disposition.indexOf('inline') !== -1) { var filenameRegex = /filename[^;=\n]*=((['"]).*?\2|[^;\n]*)/; var matches = filenameRegex.exec(disposition); if (matches != null && matches[1]) { filename = matches[1].replace(/['"]/g, ''); } } }

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