一個httpclient post 的例子

import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.util.ArrayList;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
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.HttpGet;
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;

public class Test2 {


public static void main(String[] args) {
// TODO Auto-generated method stub
HttpClient httpclient = new DefaultHttpClient();
// 創建httppost
HttpPost httppost = new HttpPost(
"http://mail.zju.edu.cn/coremail/index.jsp");

// 創建參數隊列
ArrayList<</FONT>NameValuePair> formparams = new ArrayList<</FONT>NameValuePair>();
formparams.add(new BasicNameValuePair("action:login", ""));
formparams.add(new BasicNameValuePair("password", "xxxx"));
formparams.add(new BasicNameValuePair("uid", "xxxxxx"));
UrlEncodedFormEntity uefEntity;
try {
uefEntity = new UrlEncodedFormEntity(formparams, "GBK");
httppost.setEntity(uefEntity);
System.out.println("executing request " + httppost.getURI());
HttpResponse response;
response=httpclient.execute(httppost);
String location = response.getFirstHeader("Location").getValue();
location+="&nodetect=true";
System.out.println(location);
HttpGet httpget = new HttpGet(location);
httppost.abort();

response =httpclient.execute(httpget);
System.out.println("--------------------------------------");
System.out.println("respose============>"+response);
HttpEntity entity = response.getEntity();
if (entity != null) {
System.out.println("--------------------------------------");
// System.out.println(entity);
System.out.println("Response content: "
+ EntityUtils.toString(entity, "GBK"));
System.out.println("--------------------------------------");
}
} catch (ClientProtocolException e) {
e.printStackTrace();
} catch (UnsupportedEncodingException e1) {
e1.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
// 關閉連接,釋放資源
httpclient.getConnectionManager().shutdown();
}
}
}