微信API调用post

public static JSONObject wxdoPost(String url, JSONObject jsonData) {
   // 指定Post请求
   HttpPost httpPost = new HttpPost(url);
   // 创建httpclient
   HttpClient httpClient = new DefaultHttpClient();
   // 发送请求
   org.apache.http.HttpResponse httpResponse;
   // 返回的json
   JSONObject jsonObject = null;
   // 封装post请求数据
   StringEntity entity = new StringEntity(jsonData.toString(), "utf-8");
   httpPost.setEntity(entity);
   try {
      // 发送请求
      httpResponse = httpClient.execute(httpPost);
      // 判断请求是否成功
      if(httpResponse.getStatusLine().getStatusCode()==HttpStatus.SC_OK){
         // 得到请求响应信息
         String str = EntityUtils.toString(httpResponse.getEntity(), "utf-8");
         // 返回json
               jsonObject=JSONObject.fromObject(str);
      }
   } catch (ClientProtocolException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
   } catch (IOException e) {
      // TODO Auto-generated catch block
      e.printStackTrace();
   }
   return jsonObject;
}