httpclient容易应用，登录开心网的例子

httpclient简单应用，登录开心网的例子

需要用到的java包?
commons-httpclient-3.1.jar?
commons-logging.jar?
log4j-1.2.15.jar?
commons-codec.jar?


很简单，没什么好说的，直接上代码：

package httpclienttest;     import org.apache.commons.httpclient.Cookie;   import org.apache.commons.httpclient.HttpClient;   import org.apache.commons.httpclient.NameValuePair;   import org.apache.commons.httpclient.methods.GetMethod;   import org.apache.commons.httpclient.methods.PostMethod;     public class LoginKaixin {       private static final String LOGON_SITE = "http://www.kaixin001.com";       private static final int LOGON_PORT = 80;       public static void main(String[] args)throws Exception {           HttpClient client = new HttpClient();           client.getHostConfiguration().setHost(LOGON_SITE, LOGON_PORT);                      //登录页面           PostMethod post = new PostMethod("http://www.kaixin001.com/login/login.php");           NameValuePair ie = new NameValuePair("User-Agent","Mozilla/4.0 (compatible; MSIE 6.0; Windows 2000)");              NameValuePair url = new NameValuePair("url", "/home/");           NameValuePair username = new NameValuePair("email","xxx@163.com");           NameValuePair password = new NameValuePair("password", "xxxxxx");       post.setRequestBody(new NameValuePair[] { ie,url,username, password});           client.executeMethod(post);           System.out.println("******************************登录******************************");           Cookie[] cookies = client.getState().getCookies();           client.getState().addCookies(cookies);           post.releaseConnection();           System.out.println("******************************页面转向******************************");           String newUrl="http://www.kaixin001.com/home/";           System.out.println("==========Cookies============");           int i=0;           for(Cookie c:cookies){               System.out.println(++i+":   "+c);           }           client.getState().addCookies(cookies);           post.releaseConnection();           GetMethod get = new GetMethod(newUrl);           get.setRequestHeader("Cookie", cookies.toString());           client.executeMethod(get);           String responseString = get.getResponseBodyAsString();           //登录后首页的内容           System.out.println(responseString);           get.releaseConnection();           System.out.println("******************************组件功能******************************");           //"http://www.kaixin001.com/!slave/index.php", "朋友买卖"           //"http://www.kaixin001.com/!parking/index.php", "争车位"           //"http://www.kaixin001.com/!house/index.php?_lgmode=pri", "买房子"            //http://www.kaixin001.com/!house/index.php?_lgmode=pri&t=49           //"http://www.kaixin001.com/!house/garden/index.php","花园"           //(1)进入朋友买卖****************           System.out.println("******************************(1)进入朋友买卖******************************");           String slave="http://www.kaixin001.com/!slave/index.php";           get = new GetMethod(slave);           get.setRequestHeader("Cookie", cookies.toString());           client.executeMethod(get);           responseString = get.getResponseBodyAsString();           System.out.println(responseString);           get.releaseConnection();           //(2)进入争车位****************           System.out.println("******************************(2)进入争车位******************************");           String parking="http://www.kaixin001.com/!parking/index.php";           get = new GetMethod(parking);           get.setRequestHeader("Cookie", cookies.toString());           client.executeMethod(get);           responseString = get.getResponseBodyAsString();           System.out.println(responseString);           get.releaseConnection();           //(3)进入买房子****************           System.out.println("******************************(3)进入买房子*******************************");           String house="http://www.kaixin001.com/!house/index.php?_lgmode=pri&t=49";           get = new GetMethod(house);           get.setRequestHeader("Cookie", cookies.toString());           client.executeMethod(get);           responseString = get.getResponseBodyAsString();           System.out.println(responseString);           get.releaseConnection();           //(4)进入花园****************           System.out.println("******************************(4)进入花园*******************************");           String garden="http://www.kaixin001.com/!house/garden/index.php";           get = new GetMethod(garden);           get.setRequestHeader("Cookie", cookies.toString());           client.executeMethod(get);           responseString = get.getResponseBodyAsString();           System.out.println(responseString);           get.releaseConnection();                             }     }