Servlet下载完成后如何刷新页面？Cannot call sendRedirect() after the response has been commit

[wx198977]

	public void downLoad(String filePath, HttpServletResponse response,
			boolean isOnLine) throws Exception {
		File f = new File(filePath);
		if (!f.exists()) {
			response.sendError(404, "File not found!");
			return;
		}
		BufferedInputStream br = new BufferedInputStream(new FileInputStream(f));
		byte[] buf = new byte[1024];
		int len = 0;

		response.reset();
		if (isOnLine) { 
			URL u = new URL("file:///" + filePath);
			response.setContentType(u.openConnection().getContentType());
			response.setHeader("Content-Disposition",
					"inline; filename=" + f.getName());
			
		} else { 
			response.setContentType("application/x-msdownload");
			response.setHeader("Content-Disposition", "attachment; filename="
					+ f.getName());
		}
		OutputStream out = response.getOutputStream();
		while ((len = br.read(buf)) > 0)
			out.write(buf, 0, len);
		br.close();
		out.close();
	}

以上为提交下载的方法，希望在下载后，页面能刷新完成跳转，可是当发起response.sendRedirect();后出现异常
java.lang.IllegalStateException: Cannot call sendRedirect() after the response has been committed
请问如何解决？

[菖蒲老先生]

这个好像挺难做到的，因为下载用的是response请求，根本就刷新不了页面。。。

[scbb]

Struts吗？ execute最后return null试试看。