Java从代理服务器下载文件 java 从服务器下载文件

//文件路径
File file = new File(path);
		// 取得文件名。
		String filename = file.getName();		// 以流的形式下载文件。
		InputStream fis = new BufferedInputStream(new FileInputStream(path));
		byte[] buffer = new byte[fis.available()];
		fis.read(buffer);
		fis.close();
		// 清空response
		response.reset();
		// 设置response的Header
		response.addHeader("Content-Disposition", "attachment;filename="
				+ new String(filename.getBytes()));
		response.addHeader("Content-Length", "" + file.length());
		OutputStream toClient = new BufferedOutputStream(
				response.getOutputStream());
		response.setContentType("application/octet-stream");
		toClient.write(buffer);
		toClient.flush();
		toClient.close();