public class MyHttpUrlCon {

     public static String settionId = "";

     public static final int TIMEOUT = ;//

     public ReturnData doGet(String urlString) {

         HttpURLConnection conn = null;

         try {

             URL url = new URL(urlString);

             conn = (HttpURLConnection) url.openConnection();

             conn.setConnectTimeout();

             conn.setReadTimeout();

             conn.setRequestMethod("GET");

             conn.setRequestProperty("cookie", settionId);

             conn.connect();

             if (conn.getHeaderField("set-cookie") != null) {

                 settionId = conn.getHeaderField("set-cookie");

                 Log.d("mm", "Constants.settionId:" + settionId);

             } else {

                 return new ReturnData(ReturnData.TimeOut, "");

             }

             if (conn.getResponseCode() == ) {

                 InputStream is = conn.getInputStream();

                 BufferedReader bf = new BufferedReader(

                         new InputStreamReader(is));

                 String line = "";

                 StringBuilder sb = new StringBuilder();

                 while ((line = bf.readLine()) != null) {

                     sb.append(line);

                 }

                 String jsonString = sb.toString().replace("\n", "\\n")

                         .replace("\r", "\\r");

                 String jsonStr = jsonString.substring(jsonString.indexOf("{"),

                         jsonString.length());

                 return new ReturnData(ReturnData.Succee, jsonStr);

             } else {

                 return new ReturnData(ReturnData.NoRespond, "");

             }

         } catch (IOException e) {

             // TODO Auto-generated catch block

             e.printStackTrace();

             return new ReturnData(ReturnData.NoRespond, "");

         } finally {

             if (conn != null) {

                 conn.disconnect();

             }

         }

     }

     public ReturnData doPost(String urlString, String params) {

         URL url;

         HttpURLConnection conn = null;

         InputStream input = null;

         try {

             url = new URL(urlString);

             conn = (HttpURLConnection) url.openConnection();

             conn.setConnectTimeout(); // 请求超时

             conn.setRequestMethod("POST"); // 请求方式

             conn.setReadTimeout(); // 读取超时

             conn.setDoOutput(true);

             conn.setDoInput(true);

             conn.setUseCaches(false);

             conn.setRequestProperty("Charset", "UTF-8");

             conn.setRequestProperty("Content-Type","application/x-www-form-urlencoded");

             // conn.setRequestProperty("cookie", settionId);

             OutputStream os = conn.getOutputStream();

             System.out.println("请求的参数" + params);

             os.write(params.getBytes("utf-8"));

             os.close();

             if (conn != null) {

                 int code = conn.getResponseCode();

                 System.out.println(code + ":");

                 if (code == ) {

                     input = conn.getInputStream();

                     BufferedReader bf = new BufferedReader(

                             new InputStreamReader(input));

                     String line = "";

                     StringBuilder sbuilder = new StringBuilder();

                     while ((line = bf.readLine()) != null) {

                         sbuilder.append(line);

                     }

                     System.out.println(sbuilder.toString());

                     String jsonString = sbuilder.toString()

                             .replace("\n", "\\n").replace("\r", "\\r");

                     String jsonStr = jsonString.substring(

                             jsonString.indexOf("{"), jsonString.length());

                     return new ReturnData(ReturnData.Succee, jsonStr);

                 } else {

                     return new ReturnData(ReturnData.NoRespond, "");

                 }

             } else {

                 return new ReturnData(ReturnData.NoRespond, "");

             }

         } catch (Exception e) {

             e.printStackTrace();

             return new ReturnData(ReturnData.NoRespond, "");

         } finally {

             if (conn != null) {

                 conn.disconnect();

             }

         }

     }

 }

public class ReturnData {

public final static int ParserError = -3;
public final static int ParamsError = -2;
public final static int False = -1;
public final static int Succee = 0;
public final static int TimeOut = 1;
public final static int NoRespond = 2;

// 网络请求标记
private int code;
// 返回数据
private String data;

public ReturnData(int code, String data) {
this.code = code;
this.data = data;
}

/**
* 网络请求标记
*
* @return
*/
public int getCode() {
return code;
}

/**
* 网络请求标记
*
* @param code
*/
public void setCode(int code) {
this.code = code;
}

/**
* 返回数据
*
* @return
*/
public String getData() {
return data;
}

/**
* 返回数据
*
* @param data
*/
public void setData(String data) {
this.data = data;
}

}