文件名含中文的JavaWeb文件下载

在javaweb项目中实现文件下载,当文件名中包含中文文字时,需要进行如下的处理,才能在浏览器端正常显示中文文件名:

response.setContentType("octets/stream");
response.addHeader("Content-Type", "text/html; charset=utf-8");
response.addHeader("Content-Disposition", "attachment;filename="+new String(fileName.getBytes("UTF-8"),"ISO8859-1"));

效果如下:

完整代码如下(只在Firefox上测试通过):

public void download(HttpServletRequest request, HttpServletResponse response) {
    try {
        request.setCharacterEncoding("utf-8");
        String path = request.getParameter("filePath");
        if (StringUtils.isEmpty(path)) throw new Exception("文件位置错误");
        path = URLDecoder.decode(path, "UTF-8");
        File file=new File(path);

        String fileName=file.getName();
        InputStream fis=new BufferedInputStream(new FileInputStream(path));
        byte[] buffer=new byte[fis.available()];

        fis.read(buffer);
        fis.close();
        response.reset();
        response.setContentType("octets/stream");
        response.addHeader("Content-Type", "text/html; charset=utf-8");
        response.addHeader("Content-Disposition", "attachment;filename="+new String(fileName.getBytes("UTF-8"),"ISO8859-1"));
        response.addHeader("Content-Length",""+ file.length());
        OutputStream toClient=new BufferedOutputStream(response.getOutputStream());
        response.setContentType("application/octet-stream");
        toClient.write(buffer);
        toClient.flush();
    }
    catch(Exception ex) {
        logger.error(ex.getMessage(), ex);
        response.setContentType("text/html;charset=UTF-8");
        try {
            response.getWriter().print("<script type='text/javascript'>alert('文件下载异常');</script>");
        } catch (IOException e) {
            logger.error(e.getMessage(), e);
        }
    }
}

 

posted @ 2016-01-25 17:58  MySomeDay  阅读(2201)  评论(0编辑  收藏  举报