Android使用httpPost向服務器發送請求的方法

本文實例講述了Android使用httpPost向服務器發送請求的方法。分享給大家供大家參考，具體如下：

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對象
     HttpPost httpPost = new HttpPost(url);
     // 設置字符集
     HttpEntity entity = new UrlEncodedFormEntity(params, HTTP.UTF_8);
     // 設置參數實體
     httpPost.setEntity(entity);
     // 獲取HttpClient對象
     HttpClient httpClient = new DefaultHttpClient();
     //連接超時
     httpClient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT, 30000);
     //請求超時
     httpClient.getParams().setParameter(CoreConnectionPNames.SO_TIMEOUT, 30000);
     try {
       // 獲取HttpResponse實例
      HttpResponse httpResp = httpClient.execute(httpPost);
      // 判斷是夠請求成功
      if (httpResp.getStatusLine().getStatusCode() == 200) {
        // 獲取返回的數據
        result = EntityUtils.toString(httpResp.getEntity(), "UTF-8");
        Log.i("HttpPost", "HttpPost方式請求成功，返回數據如下：");
        Log.i("result", result);
      } else {
        Log.i("HttpPost", "HttpPost方式請求失敗");
      }
     } catch (ConnectTimeoutException e){
       result = TIME_OUT;
     }
     return result;
  }
}

可以直接用的完整類。

希望本文所述對大家Android程序設計有所幫助。