http request using GZIP, but unsuccessful, Jiqiu you ~ ~! !

Without GZIP, no problem at all, using GZIP on the problem, described as follows:
Click the button to send the data to the server, then the server receives the data returned
Click the button every time the server receives the data failed, a successful one failed, very depressed! Engage in a day, and ask for help ah ~ ~

Android side code:

 public static String send (String url, String content, String contentType) throws Exception {
/ / Create connection 
. 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 (); 

/ / Send data 
BufferedWriter bw = new BufferedWriter (new OutputStreamWriter (new GZIPOutputStream (conn.getOutputStream ()), "GBK")); 
bw.write (content); 
bw.flush (); 
bw.close (); 


/ / Receive data back 
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 (); 
} 

Server-side code:

 / ** 
* Receive HTTP data 
* @ Param request 
* @ Param response 
* @ Return data 
* / 
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 (); 
} 

/ ** 
* HTTP response data 
* @ 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 (); 
} 
} 
} 

I wrote these two tools, you can try intentioned, Android buttons built on the line, the server build a Servlet on the line.

It's that dotted, thank you! ! !

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Reply:
By the way, the exception is: java.io.IOException: Unknown format
In the Android side:

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

Thrown out
Reply:
Looks like the JDK GZIP itself is a problem, you read this article useful to you: http:/ / cin-ie.iteye.com/blog/859822
Reply:
Back to the second floor, try it today, do not look into
Reply:
Really is such a thing, so put enough
Reply:
Do not put so that, hey