如何將序列化的 object 從 Android 客戶端發送到 Google App Engine Servlet？

Question

我如何將序列化的 object 從 Android 客戶端發送到 Google App Engine Servlet。
我有這個代碼：

private static HttpClient getHttpClient() 
{
if (mHttpClient == null) 
{
    mHttpClient = new DefaultHttpClient();
    final HttpParams params = mHttpClient.getParams();
    HttpConnectionParams.setConnectionTimeout(params, HTTP_TIMEOUT);
    HttpConnectionParams.setSoTimeout(params, HTTP_TIMEOUT);
    ConnManagerParams.setTimeout(params, HTTP_TIMEOUT);
}
return mHttpClient;
}

public static String executeHttpPost(String url, Object obj) throws Exception
{    
  HttpClient client = getHttpClient();
  HttpPost request = new HttpPost(url);
  request.set( ????
}

我如何從這里繼續？
有沒有更好的辦法？

Answer 1

給你go：

ByteArrayOutputStream bos = new ByteArrayOutputStream();
ObjectOutput out = new ObjectOutputStream(bos);   
out.writeObject(obj);
byte[] yourObjectSerialized = bos.toByteArray();

HttpClient client = getHttpClient();
HttpPost request = new HttpPost(url);
request.setEntity(new ByteArrayEntity(yourObjectSerialized));