从java发送时，GCM推送通知不起作用

Question

从java发送GCM推送通知时，我收到了以下回复。

  

{ “multicast_id”：8802417572032089725， “成功”：0， “失败”：5 “canonical_ids”：0 “结果”：[{ “错误”： “NotRegistered”}，{ “错误”：“NotRegistered “}，{” 错误 “：” NotRegistered “}，{” 错误 “：” InvalidRegistration “}，{” 错误 “：” MismatchSenderId“}]}

。

这是我的代码：

PostMethod post = null;
    try
    { // Below is a good tutorial , how to post json data
      // http://hmkcode.com/android-send-json-data-to-server/

        String url = "https://android.googleapis.com/gcm/send";
        HttpClient httpclient = getHttpClient();
        post = new PostMethod(url);
        JSONObject mainData = new JSONObject();
        try
        {
            JSONObject data = new JSONObject();
            data.putOpt("message", "my message");
            data.putOpt("title", "My title");
            JSONArray regIds = new JSONArray();
            for (String s : registrationIds)
            {
                regIds.put(s);
            }
            mainData.put("registration_ids", regIds);
            mainData.put("data", data);
        }
        catch (JSONException e)
        {
            LOG.info(e.getCause(), e);
        }
        post.setRequestBody(mainData.toString());
        post.setRequestHeader("Authorization", "key=" + googleApiKey);

        post.setRequestHeader("Content-Type", "application/json");
        httpclient.executeMethod(post);
        String response = new String(post.getResponseBody());

        LOG.info("Response body of Mobile No :  "+ mobileNo + "  is : " +response);
    }
    catch (MalformedURLException e)
    {
        LOG.info(e.getCause(), e);
    }
    catch (IOException e)
    {
        LOG.info(e.getCause(), e);
    }
    finally 
    {
        if(post != null)
        {
            post.releaseConnection();
        }
    }