HttpClient通过HttpPost传递参数

HttpClient新版本（新老版本没有做明确界定，Sorry!） 

 package http;

 import java.util.ArrayList;
 import java.util.List;

 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.impl.client.DefaultHttpClient;
 import org.apache.http.message.BasicNameValuePair;

 public class HttpTests {

     /**
      * @param args
      * @throws Exception
      */
     public static void main(String[] args) throws Exception {
         HttpClient httpclient = new DefaultHttpClient();
         HttpPost httpPost = new HttpPost("******/abc");
         List nvps = new ArrayList();
         nvps.add(new BasicNameValuePair("username", "vip"));
         nvps.add(new BasicNameValuePair("password", "secret"));
         httpPost.setEntity(new UrlEncodedFormEntity(nvps));
         httpclient.execute(httpPost);
         httpclient.getConnectionManager().shutdown();
     }

 }

HttpClient 老版本： 

 package http;

 import org.apache.commons.httpclient.HttpClient;
 import org.apache.commons.httpclient.NameValuePair;
 import org.apache.commons.httpclient.methods.PostMethod;

 public class HttpTests {

     /**
      * @param args
      * @throws Exception
      */
     public static void main(String[] args) throws Exception {
         HttpClient httpclient = new HttpClient();
         PostMethod httpPost =new PostMethod("******/abc");
         NameValuePair[] param = { new NameValuePair("username", "vip")};
         httpPost.setRequestBody(param);
         httpclient.executeMethod(httpPost);
     }

 }