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  • 文件下载:"Content-disposition","attachment; filename=中文名>>>解决方案

    文件下载时常会出现如下问题: response.setHeader("Content-disposition","attachment; filename="+as+"");
    如果as直接写中文名字时,就会直接在IE页面打开Excel文件(弹出后点打开会在IE页面打开,注意此时的“你想打开或保存此文件吗?”,名称会显示一个类似CAK....的名称,实现上并不是正常的 *.xls格式的名称),如图所示:查看更多精彩图片

    而不是另外弹出并打开Excel文件。解决办法是:(程序片段)

            String as="我明白了.xls";
            String fileName =as;// = java.net.URLEncoder.encode(as, "UTF-8");
            /*根据request的locale 得出可能的编码,中文操作系统通常是gb2312*/
                fileName = new String(as.getBytes("GB2312"), "ISO_8859_1");  
                as=fileName;
            response.setContentType("application/vnd.ms-excel");
            response.setHeader("Content-disposition","attachment; filename="+as+"");   
         
            BufferedInputStream bis = null;
         BufferedOutputStream bos = null;
         try {
            // bis = new BufferedInputStream(new FileInputStream(getServletContext().getRealPath("" + filename)));
          bis = new BufferedInputStream(new FileInputStream(dirFile));
          bos = new BufferedOutputStream(response.getOutputStream());

             byte[] buff = new byte[2048];
             int bytesRead;

             while(-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
                 bos.write(buff,0,bytesRead);
             }
         } catch(final IOException e) {
             System.out.println ( "出现IOException." + e );
         } finally {
             if (bis != null)
                 bis.close();
             if (bos != null)
                 bos.close();
         }

    程序段中最关键的一句:

    new String(as.getBytes("GB2312"), "ISO_8859_1");  

    将文件命名转码. OK结果正常了>>>

    查看更多精彩图片

    这样就可以下载时用中文名称了,并且是另外打开Excel文件的。



    转载:http://cutelion.blog.hexun.com/6980666_d.html

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  • 原文地址:https://www.cnblogs.com/pangblog/p/3301754.html
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