i found the problem by myself. It's problem of the usage of deflater,
correct solution should be:
public static byte[] deflaterCompress(String str) throws IOException
{
TOTAL_LEN = 0;
byte[] input = str.getBytes(encoding);
Deflater deflater = new Deflater();
deflater.setInput(input);
deflater.finish();
byte[] buf = new byte[8192];
ByteArrayOutputStream baos = new ByteArrayOutputStream();
while (!deflater.finished()) {
int byteCount = deflater.deflate(buf);
TOTAL_LEN += byteCount;
baos.write(buf, 0, byteCount);
}
deflater.end();
byte[] compressedBytes = baos.toByteArray();
return compressedBytes;
}
On Mon, Jun 27, 2011 at 1:09 PM, lily <[email protected]> wrote:
> **
> Have you add the internet permission in manifest like this?
> <uses-permission
> android:name="android.permission.INTERNET"></uses-permission>
>
> 于 2011/6/27 11:10, 陈彧堃 写道:
>
> I use deflater to compress string data. It works fine on java console
> project, but while running on android enviroment, server will report "buffer
> error" problem and reture 500.
>
> SendMessage(String content, String url)
> {
> byte[] bs = deflaterCompress(content);
> URL url = new URL(urlStr);
> HttpURLConnection httpConn = (HttpURLConnection)
> url.openConnection();
> httpConn.setDoOutput(true);
> httpConn.setRequestMethod("POST");
> httpConn.setDoInput(true);
>
> //httpConn.setRequestProperty("Content-length",
> String.valueOf(UmengDeviceHelper.TOTAL_LEN));
> httpConn.setRequestProperty("Content-Type",
> "application/octet-stream");
> httpConn.setRequestProperty("Content-Encoding", "deflate");
> httpConn.connect();
> DataOutputStream outputStream = new
> DataOutputStream(httpConn.getOutputStream());
> outputStream.write(bs);
> //outputStream.write(content.getBytes("utf-8"));
> outputStream.flush();
> outputStream.close();
>
> int responseCode = 500;
> try {
> responseCode = httpConn.getResponseCode();
> Log.i("MobclickAgent", "reture code is:" + responseCode);
> } catch (NumberFormatException e) {
> // ignore
> e.printStackTrace();
> }
> }
>
> public static byte[] deflaterCompress(String str) throws IOException
> {
> byte[] input = str.getBytes(encoding);
> byte[] output = new byte[100];
> Deflater compresser = new Deflater();
> compresser.setInput(input);
> compresser.finish();
> TOTAL_LEN = compresser.deflate(output);
> return output;
> }
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