http请求，使用GZIP，但是不成功，急求各位~~！！

[zhl1015]

不用GZIP，一点问题都没有，使用GZIP就出问题，描述如下：
点击按钮发送数据到服务端，然后接收服务端返回的数据
点击按钮，每隔一次接收服务端的数据失败，一次成功一次失败，非常郁闷！搞了一天了，请求帮助啊~~

Android端代码：

	public static String send(String url, String content, String contentType) throws Exception {
		//建立连接
		HttpURLConnection conn = (HttpURLConnection) new URL(url).openConnection();
		conn.setDoInput(true);
		conn.setDoOutput(true);
		conn.setUseCaches(false);
		if (contentType != null) {
			conn.setRequestProperty("content-type", contentType);
		} else {
			conn.setRequestProperty("content-type", CONTENT_TYPE_HTML);
		}
		conn.setConnectTimeout(10000);
		conn.setReadTimeout(60000);
		conn.setRequestMethod("POST");
		conn.connect();
		
		//发送数据
		BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new GZIPOutputStream(conn.getOutputStream()), "GBK"));
		bw.write(content);
		bw.flush();
		bw.close();
		
		
		//接收返回数据
		StringBuffer sb = new StringBuffer();
		BufferedReader br = new BufferedReader(new InputStreamReader(new GZIPInputStream(conn.getInputStream()), "GBK"));
		String str = null;
		while ((str = br.readLine()) != null) {
			sb.append(str);
		}
		br.close();
		
		conn.disconnect();
		return sb.toString();
	}

服务端代码：

	/**
	 * 接收HTTP数据
	 * @param request
	 * @param response
	 * @return 数据
	 */
	public static String receive(HttpServletRequest request) {
		StringBuffer sb = new StringBuffer();
		BufferedReader br = null;
		try {
			br = new BufferedReader(new InputStreamReader(new GZIPInputStream(request.getInputStream()), "GBK"));
			String str = null;
			while ((str = br.readLine()) != null) {
				sb.append(str);
			}
			br.close();
			
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (br!=null) br.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
		return sb.toString();
	}
	
	/**
	 * 响应HTTP数据
	 * @param responseText
	 * @param response
	 */
	public static void response(String responseText, HttpServletResponse response) {
		BufferedWriter bw = null;
		try {
			response.setHeader("Content-Encoding", "gzip");
			bw = new BufferedWriter(new OutputStreamWriter(new GZIPOutputStream(response.getOutputStream()), "GBK"));
			bw.write(responseText);
			bw.flush();
			bw.close();
			
		} catch (Exception e) {
			e.printStackTrace();
		} finally {
			try {
				if (bw!=null) bw.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
		}
	}

这两个是我写的工具类，各位好心可以试一下，Android建个按钮就行，服务端建个Servlet就行。

就这么点分了，感谢各位！！！

[zhl1015]

对了，异常是：java.io.IOException: Unknown format
在Android端的：

BufferedReader br = new BufferedReader(new InputStreamReader(new GZIPInputStream(conn.getInputStream()), "GBK"));

抛出来的

[zhl1015]

回2楼，今天试下，看看成不

[zhl1015]

真就是这么回事，换上就好使

[fire_fire_fire]

貌似JDK的GZIP本身就有问题，你看看这篇文章对你有用吗：http://cin-ie.iteye.com/blog/859822

[乌托邦长空]

换上也不好使，哎