Android学习笔记2-HttpUtil工具类

在《第一行代码》上面看到这么个例子记录下来，方便自己以后使用。
把HttpURLConnection封装起来，直接使用。

public class HttpUtil {

    public static final String TAG = "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);
                    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){
                        LogUtil.i(TAG, "listener.onFinish() - " + response.toString());
                        listener.onFinish(response.toString());
                    }
                }catch (Exception e){
                    if(listener != null){
                        listener.onError(e);
                    }
                }finally {
                    if(connection != null){
                        connection.disconnect();
                    }
                }
            }
        }).start();
    }
}

在其他代码中可以直接调用：

HttpUtil.sendHttpRequest(address, new HttpCallbackListener() {
            @Override
            public void onFinish(String response) {
                //do something here
            }

            @Override
            public void onError(Exception e) {
               //do something here
            }
        });