利用线程池实现Android客户端的http网络数据请求工具类

该工具类值只实现了HTTP的get方法，参考get方法可轻松实现post、put、delete等方法，下面是get方法的实现

public class SimpleHttpClient {private static final String TAG = SimpleHttpClient.class.getSimpleName();public static int POOL_SIZE = 8;private static ExecutorService sExecutorService;private static int READ_TIME_OUT = 10 * 1000;private static int CONNECTE_TIME_OUT = 10 * 1000;private static final String ENCODE = "UTF-8";static {sExecutorService = Executors.newFixedThreadPool(POOL_SIZE);}public interface HttpCallback <T> {public  void onSuccess(T response);public  void onError(T error);}public static void doGet(String url,final HttpCallback<String> callback) {final String _url = url;sExecutorService.submit(new Runnable() {@Overridepublic void run() {URL url = null;try {url = new URL(_url);} catch (MalformedURLException e) {e.printStackTrace();callback.onError(e.getMessage());return;}BufferedReader bufferedReader  = null;StringBuffer response = new StringBuffer();HttpURLConnection urlConnection = null;try {urlConnection = (HttpURLConnection) url.openConnection();urlConnection.setDoInput(true);urlConnection.setReadTimeout(READ_TIME_OUT);urlConnection.setConnectTimeout(CONNECTE_TIME_OUT);urlConnection.setRequestMethod("GET");urlConnection.setUseCaches(false);urlConnection.setRequestProperty("connection", "close");urlConnection.connect();int code = urlConnection.getResponseCode();if (code >= 200 && code < 400) {bufferedReader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream(),ENCODE));String line = null;while ((line = bufferedReader.readLine()) != null) {response.append(line);}callback.onSuccess(response.toString());} else {bufferedReader = new BufferedReader(new InputStreamReader(urlConnection.getErrorStream(),ENCODE));String line = null;while ((line = bufferedReader.readLine()) != null) {response.append(line);}callback.onError(response.toString());}}catch (SocketTimeoutException e) {e.printStackTrace();callback.onError(e.getMessage());} catch (IOException e) {e.printStackTrace();callback.onError(e.getMessage());} finally {if (bufferedReader != null) {try {bufferedReader.close();} catch (IOException e) {e.printStackTrace();}}}}});}}

测试：

public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }    public void test(View view) {    String url = "http://www.weather.com.cn/adat/sk/101010100.html";    SimpleHttpClient.doGet(url, new HttpCallback<String>() {@Overridepublic void onSuccess(String respose) {System.out.println("sucess:" + respose);}@Overridepublic void onError(String error) {System.out.println("error:" + error);}});    }}

<pre name="code" class="java"><strong>布局文件：</strong>

<strong></strong><pre name="code" class="html"><RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"    android:paddingTop="@dimen/activity_vertical_margin"    tools:context="com.example.httpdemos.MainActivity" >    <TextView        android:id="@+id/textView1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:text="@string/hello_world" />    <Button        android:id="@+id/button1"        android:layout_width="wrap_content"        android:layout_height="wrap_content"        android:layout_below="@+id/textView1"        android:layout_marginTop="132dp"        android:layout_toRightOf="@+id/textView1"        android:onClick="test"        android:text="Button" /></RelativeLayout>

权限：

 <uses-permission android:name="android.permission.INTERNET" />

测试结果：