HttpClient通过HttpPost传递参数

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<NameValuePair> nvps = new ArrayList<NameValuePair>();
nvps.add(new BasicNameValuePair("username", "vip"));
nvps.add(new BasicNameValuePair("password", "secret"));
httpPost.setEntity(new UrlEncodedFormEntity(nvps));
HttpResponse response = httpclient.execute(httpPost);
httpclient.getConnectionManager().shutdown();
if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
String strResult = EntityUtils.toString(response.getEntity());
System.out.println(strResult);
}
}

}