下载问题

• 下载文件

 public String download() throws Exception {
 OutputStream out = null;
 String filename = "";
 String path = getRequest().getSession().getServletContext().getRealPath(Constant.EXCEL_DOWNLOAD_PATH);
 

 File file = new File(path);
 if (file.exists()) {
     filename = file.getName();
     // set response head
     filename = new String(filename.getBytes("GBK"), "ISO-8859-1");
     getResponse().setContentType("application/octet-stream;charset=GBK");
     getResponse().setHeader("Content-disposition","attachment;filename=" + filename);
     out = FileUtils.exportFile(file, getResponse().getOutputStream());
      } else {
        filename = "文件不存在.txt";
        // set response head
        filename = new String(filename.getBytes("GBK"), "ISO-8859-1");
        getResponse().setContentType("application/octet-stream;charset=GBK");
        getResponse().setHeader("Content-disposition","attachment;filename=" + filename);
        out = getResponse().getOutputStream();
     }
         return null;
}

通过设置  getResponse()
      .setContentType("application/octet-stream;charset=GBK");
     getResponse().setHeader("Content-disposition",
      "attachment;filename=" + filename);
将下载文件简化



FileUtil.java见附件