安卓工具類------->Http請求的工具類

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import java.io.BufferedReader;import java.io.ByteArrayOutputStream;import java.io.IOException;import java.io.InputStream;import java.io.InputStreamReader;import java.io.PrintWriter;import java.net.HttpURLConnection;import java.net.URL;//Http請求的工具類public class HttpUtils{private static final int TIMEOUT_IN_MILLIONS = 5000;public interface CallBack{void onRequestComplete(String result);}/** * 非同步Get請求 *  * @param urlStr * @param callBack */public static void doGetAsyn(final String urlStr, final CallBack callBack){new Thread(){public void run(){try{String result = doGet(urlStr);if (callBack != null){callBack.onRequestComplete(result);}} catch (Exception e){e.printStackTrace();}};}.start();}/** * 非同步Post請求 * @param urlStr * @param params * @param callBack * @throws Exception */public static void doPostAsyn(final String urlStr, final String params,final CallBack callBack) throws Exception{new Thread(){public void run(){try{String result = doPost(urlStr, params);if (callBack != null){callBack.onRequestComplete(result);}} catch (Exception e){e.printStackTrace();}};}.start();}/** * Get請求，獲得返回資料 *  * @param urlStr * @return * @throws Exception */public static String doGet(String urlStr) {URL url = null;HttpURLConnection conn = null;InputStream is = null;ByteArrayOutputStream baos = null;try{url = new URL(urlStr);conn = (HttpURLConnection) url.openConnection();conn.setReadTimeout(TIMEOUT_IN_MILLIONS);conn.setConnectTimeout(TIMEOUT_IN_MILLIONS);conn.setRequestMethod("GET");conn.setRequestProperty("accept", "*/*");conn.setRequestProperty("connection", "Keep-Alive");if (conn.getResponseCode() == 200){is = conn.getInputStream();baos = new ByteArrayOutputStream();int len = -1;byte[] buf = new byte[128];while ((len = is.read(buf)) != -1){baos.write(buf, 0, len);}baos.flush();return baos.toString();} else{throw new RuntimeException(" responseCode is not 200 ... ");}} catch (Exception e){e.printStackTrace();} finally{try{if (is != null)is.close();} catch (IOException e){}try{if (baos != null)baos.close();} catch (IOException e){}conn.disconnect();}return null ;}/** * 向指定 URL 發送POST方法的請求 *  * @param url *            發送請求的 URL * @param param *            請求參數，請求參數應該是 name1=value1&name2=value2 的形式。 * @return 所代表遠端資源的響應結果 * @throws Exception */public static String doPost(String url, String param) {PrintWriter out = null;BufferedReader in = null;String result = "";try{URL realUrl = new URL(url);// 開啟和URL之間的串連HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection();// 設定通用的請求屬性conn.setRequestProperty("accept", "*/*");conn.setRequestProperty("connection", "Keep-Alive");conn.setRequestMethod("POST");conn.setRequestProperty("Content-Type","application/x-www-form-urlencoded");conn.setRequestProperty("charset", "utf-8");conn.setUseCaches(false);// 發送POST請求必須設定如下兩行conn.setDoOutput(true);conn.setDoInput(true);conn.setReadTimeout(TIMEOUT_IN_MILLIONS);conn.setConnectTimeout(TIMEOUT_IN_MILLIONS);if (param != null && !param.trim().equals("")){// 擷取URLConnection對象對應的輸出資料流out = new PrintWriter(conn.getOutputStream());// 發送請求參數out.print(param);// flush輸出資料流的緩衝out.flush();}// 定義BufferedReader輸入資料流來讀取URL的響應in = new BufferedReader(new InputStreamReader(conn.getInputStream()));String line;while ((line = in.readLine()) != null){result += line;}} catch (Exception e){e.printStackTrace();}// 使用finally塊來關閉輸出資料流、輸入資料流finally{try{if (out != null){out.close();}if (in != null){in.close();}} catch (IOException ex){ex.printStackTrace();}}return result;}}

安卓工具類------->Http請求的工具類