android平台HttpGet、HttpPost请求实例

使用httpclient中的httpget()方法进行http通信的实例：

/** 
 *description：android httpget() 
 *authour:yaner·gates 
 *website://www.jb51.net
 */

package me.gogogoog; 

import java.io.ioexception;

import org.apache.http.httpresponse;
import org.apache.http.httpstatus;
import org.apache.http.client.clientprotocolexception;
import org.apache.http.client.httpclient;
import org.apache.http.client.methods.httpget;
import org.apache.http.impl.client.defaulthttpclient;
import org.apache.http.util.entityutils;

import android.app.activity;
import android.os.bundle;
import android.widget.textview;

public class myhttpgetactivity extends activity{
 /** called when the activity is first created. */
    @override
    public void oncreate(bundle savedinstancestate){ 
        super.oncreate(savedinstancestate); 
        setcontentview(r.layout.result);

        textview resulttext = (textview) this.findviewbyid(r.id.resulttext);         

        string username="username"; 
        string password="password"; 

        string httpurl = "http://192.168.1.90:8080/androidlogin/loginaction.do?method=login&username="+username+"&password="+password;   
        //创建httprequest对象
        httpget httprequest = new httpget(httpurl);
  try
  {
   //取得httpclient对象
   httpclient httpclient = new defaulthttpclient();
   //请求httpclient，取得httpresponse
   httpresponse httpresponse = httpclient.execute(httprequest);
   //请求成功
   if (httpresponse.getstatusline().getstatuscode() == httpstatus.sc_ok)
   {
    //取得返回的字符串
    string strresult = entityutils.tostring(httpresponse.getentity());
    resulttext.settext(strresult);
   }
   else
   {
    resulttext.settext("请求错误!");
   }
  }
  catch (clientprotocolexception e)
  {
   resulttext.settext(e.getmessage().tostring());
  }
  catch (ioexception e)
  {
   resulttext.settext(e.getmessage().tostring());
  }
  catch (exception e)
  {
   resulttext.settext(e.getmessage().tostring());
  }   
    }
}

使用httpclient中的httppost()方法进行http通信的实例：

/** 
*description：android httppost() 
*authour:yaner·gates 
*website://www.jb51.net
*/
package me.gogogoog; 

import java.io.ioexception; 

import java.util.arraylist; 
import java.util.list; 
import org.apache.http.httpentity; 
import org.apache.http.httpresponse; 
import org.apache.http.httpstatus; 
import org.apache.http.namevaluepair; 
import org.apache.http.client.clientprotocolexception; 
import org.apache.http.client.httpclient; 
import org.apache.http.client.entity.urlencodedformentity; 
import org.apache.http.client.methods.httppost; 
import org.apache.http.impl.client.defaulthttpclient; 
import org.apache.http.message.basicnamevaluepair; 
import org.apache.http.util.entityutils; 
import android.app.activity; 
import android.widget.textview; 

public class resultactivity extends activity{ 

    /** called when the activity is first created. */
    @override
    public void oncreate(bundle savedinstancestate){ 
        super.oncreate(savedinstancestate); 
        setcontentview(r.layout.result); 

        textview resulttext = (textview) this.findviewbyid(r.id.resulttext);                 
        string username="username"; 
        string password="password"; 
        string httpurl = "http://192.168.1.90:8080/androidlogin/loginaction.do?method=login"; 

        //创建httprequest对象 
        httppost httprequest = new httppost(httpurl); 

        list<namevaluepair> params = new arraylist<namevaluepair>(); 
        params.add(new basicnamevaluepair("username", username)); 
        params.add(new basicnamevaluepair("password", password)); 

        try{ 
            //设置字符集 
            httpentity httpentity = new urlencodedformentity(params, "gb2312"); 

            //请求httprequest 
            httprequest.setentity(httpentity); 

            //取得默认的httpclient 
            httpclient httpclient = new defaulthttpclient(); 

            //取得httpresponse 
            httpresponse httpresponse = httpclient.execute(httprequest); 

            //httpstatus.sc_ok表示连接成功 
            if (httpresponse.getstatusline().getstatuscode() == httpstatus.sc_ok){ 
                //取得返回的字符串 
                string strresult = entityutils.tostring(httpresponse.getentity()); 
                resulttext.settext(strresult); 
            }else{ 
                resulttext.settext("请求错误!"); 
            } 
        }catch (clientprotocolexception e){ 
            resulttext.settext(e.getmessage().tostring()); 
        } catch (ioexception e){ 
            resulttext.settext(e.getmessage().tostring()); 
        }catch (exception e){ 
            resulttext.settext(e.getmessage().tostring()); 
        }  
    } 
}