android封装get请求

最近在写Android，因为get请求太常用了，就做了个封装，课本整合，

public class HttpUtil {
     public static void sendHttpRequest(final String address,final
                                         HttpCallbackListener listener){
         new Thread(new Runnable() {
             @Override
             public void run() {
                 HttpURLConnection connection=null;
                 try{
                     URL url=new URL(address);
                     connection=(HttpURLConnection)url.openConnection();
                     connection.setRequestMethod("GET");
                     connection.setConnectTimeout(8000);
                     connection.setReadTimeout(8000);
                     connection.setDoInput(true);
                     connection.setDoOutput(true);
                     InputStream in=connection.getInputStream();
                     BufferedReader reader=new BufferedReader(new InputStreamReader(in));
                     StringBuilder response=new StringBuilder();
                     String line;
                     while ((line=reader.readLine())!=null){
                         response.append(line);
                     }
                     if(listener!=null){
                         listener.onFinish(response.toString());
                     }
                 }catch (Exception e){
                     if(listener!=null){
                         listener.onError(e);
                     }
                 }finally {
                     if(connection!=null){
                         connection.disconnect();
                     }
                 }
             }
         }).start();
     }
 }

 public interface HttpCallbackListener {
     void onFinish(String response);
     void onError(Exception e);
 }

 activity中使用    private void sendToGetCoin(int car_id){
         String coinUrl="http://"+ MyIp.ip+":8080/CarSafe/IntegrationServlet?car_id="+car_id;
         HttpUtil.sendHttpRequest(coinUrl, new HttpCallbackListener() {
             @Override
             public void onFinish(String response) {
               Message message=new Message();
                 message.what=SHOW_COIN;
                 message.obj=response;
                 handler.sendMessage(message);//这样就完成了和主线程通信，通过主线程显示出来
             }

             @Override
             public void onError(Exception e) {

             }
         });
     }