import java.util.List;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.HttpClient;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.ConnectTimeoutException;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.CoreConnectionPNames;
import org.apache.http.protocol.HTTP;
import org.apache.http.util.EntityUtils;

import android.util.Log;

public class RequestByHttpPost {

 public static String TIME_OUT = "操作超時";
 
 public static String doPost(List<NameValuePair> params,String url) throws Exception{
  String result = null;
      // 新建HttpPost物件
      HttpPost httpPost = new HttpPost(url);
      // 設定字符集
      HttpEntity entity = new UrlEncodedFormEntity(params, HTTP.UTF_8);
      // 設定引數實體
      httpPost.setEntity(entity);
      // 獲取HttpClient物件
      HttpClient httpClient = new DefaultHttpClient();
      //連線超時
      httpClient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 30000);
      //請求超時
      httpClient.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 30000);
      try {
       // 獲取HttpResponse例項
          HttpResponse httpResp = httpClient.execute(httpPost);
          // 判斷是夠請求成功
          if (httpResp.getStatusLine().getStatusCode() == 200) {
           // 獲取返回的資料
           result = EntityUtils.toString(httpResp.getEntity(), "UTF-8");
           Log.i("HttpPost", "HttpPost方式請求成功，返回資料如下：");
           Log.i("result", result);
          } else {
           Log.i("HttpPost", "HttpPost方式請求失敗");
          }
      } catch (ConnectTimeoutException e){
       result = TIME_OUT;
      }
     
      return result;
 }
}