如何让浏览器中的文件在手机中下载而不是打开呢？

How to force files to open in browser instead of download (pdf)?

其实这是治标不治本的方法，因为之前程序就已经实现了该功能。

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        response.setHeader("Content-Disposition", "attachment;filename=" +finalFileName);//To have the file downloaded rather than viewed
        response.addHeader("Content-Length", "" + file.length());
        response.setContentType("application/octet-stream");

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