Http的使用—

首先先建一个类，

public class Http {

进行是否有网络判断

public static boolean isNetWork(Context context){ConnectivityManager manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);NetworkInfo info = manager.getActiveNetworkInfo();return info.isAvailable();}

请求数据GET请求

public static String requestHttpGet(String strUrl) {try { //设置urlURL url = new URL(strUrl);//获取HttpURLConnectionHttpURLConnection connection = (HttpURLConnection) url.openConnection();//设置为get请求connection.setRequestMethod("GET");//设置连接主机超时时间connection.setConnectTimeout(5000);//设置从主机读取数据超时connection.setReadTimeout(5000);//获取请求码（来判断网络请求是否正确）int code = connection.getResponseCode();//判断请求是否成功if (code == HttpURLConnection.HTTP_OK) {//如果数据请求成功//就获取数据InputStream stream = connection.getInputStream();BufferedReader reader = new BufferedReader(new InputStreamReader(stream, "utf-8"));//拼接字符串StringBuilder builder = new StringBuilder();//把数据读取从成字符串String str = "";while ((str = reader.readLine()) != null) {//把一行行数据拼接成一行数据builder.append(str);}//返回拼接后的数据return builder.toString();}//关闭连接connection.disconnect();} catch (Exception e) {e.printStackTrace();}return null;}

这样就可以和Handler和子线程去解析接口
记得不要忘了注册

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

Http的使用——GET

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