在Web服务中从android接收空值

Question

我正在开发一个Android应用程序。在这里我遇到了将值发布到rest service的问题。我使用Namevaluepair绑定值来发布数据。

    params.add(new BasicNameValuePair("businessName", businessname));
    params.add(new BasicNameValuePair("address1", address1));
    params.add(new BasicNameValuePair("businessphone", businessphone));
    params.add(new BasicNameValuePair("email", email));
    params.add(new BasicNameValuePair("zipCode", zipCode));
    params.add(new BasicNameValuePair("locationcount", locationcount));
    params.add(new BasicNameValuePair("businesstypeid", businesstypeid));
    params.add(new BasicNameValuePair("firstnname", firstname));

像这样。当我在Android客户端中正确打印这些值时，它正确打印。但是在服务器上我得到空值。

  try {
            // http client
            DefaultHttpClient httpClient = new DefaultHttpClient();
             httpEntity = null;
            HttpResponse httpResponse = null;

            // Checking http request method type
            if (method == POST) {
                HttpPost httpPost = new HttpPost(url);

               try
                {
                // adding post params
                if (params != null) {
                    httpPost.setEntity(new UrlEncodedFormEntity(params));

                    System.out.println("this is post method.....................");

                    System.out.println(url);
                    System.out.println(params);
                }
                }

                catch(UnsupportedEncodingException e)
                {
                    e.printStackTrace();
                }
                try
                {
                httpResponse = httpClient.execute(httpPost);

                Log.d("Http Response:", response.toString());
                }
                catch(ClientProtocolException e)
                {
                    e.printStackTrace();
                }
                catch(IOException e)
                {
                    e.printStackTrace();
                }

这是我的ServiceHandler课程。您可以告诉我为什么会遇到这种问题。请提前感谢您的建议。