读取人人页面用httpclient

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



import org.apache.http.Header;
import org.apache.http.HttpResponse;
import org.apache.http.NameValuePair;
import org.apache.http.client.ResponseHandler;
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.BasicResponseHandler;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.protocol.HTTP;



public class Renren {
	 // The configuration items   
    private static String userName = "name";   
    private static String password = "pass";   
    private static String redirectURL = "http://blog.renren.com/blog/304317577/449470467";   
  
    // Don't change the following URL   
    private static String renRenLoginURL = "http://www.renren.com/PLogin.do";   
  
    // The HttpClient is used in one session   
    private HttpResponse response;   
    private DefaultHttpClient httpclient = new DefaultHttpClient();   
  
    private boolean login() {   
        HttpPost httpost = new HttpPost(renRenLoginURL);   
        // All the parameters post to the web site   
        List<NameValuePair> nvps = new ArrayList<NameValuePair>();   
        nvps.add(new BasicNameValuePair("origURL", redirectURL));   
        nvps.add(new BasicNameValuePair("domain", "renren.com"));   
        nvps.add(new BasicNameValuePair("isplogin", "true"));   
        nvps.add(new BasicNameValuePair("formName", ""));   
        nvps.add(new BasicNameValuePair("method", ""));   
        nvps.add(new BasicNameValuePair("submit", "登录"));   
        nvps.add(new BasicNameValuePair("email", userName));   
        nvps.add(new BasicNameValuePair("password", password));   
        try {   
            httpost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));   
            response = httpclient.execute(httpost);   
        } catch (Exception e) {   
            e.printStackTrace();   
            return false;   
        } finally {   
            httpost.abort();   
        }   
        return true;   
    }   
  
    private String getRedirectLocation() {   
        Header locationHeader = response.getFirstHeader("Location");   
        if (locationHeader == null) {   
            return null;   
        }   
        return locationHeader.getValue();   
    }   
  
    private String getText(String redirectLocation) {   
        HttpGet httpget = new HttpGet(redirectLocation);   
        // Create a response handler   
        ResponseHandler<String> responseHandler = new BasicResponseHandler();   
        String responseBody = "";   
        try {   
            responseBody = httpclient.execute(httpget, responseHandler);   
        } catch (Exception e) {   
            e.printStackTrace();   
            responseBody = null;   
        } finally {   
            httpget.abort();   
            httpclient.getConnectionManager().shutdown();   
        }   
        return responseBody;   
    }   
  
    public void printText() {   
        if (login()) {   
            String redirectLocation = getRedirectLocation();   
            if (redirectLocation != null) {   
                System.out.println(getText(redirectLocation));   
            }   
        }   
    }   
  
    public static void main(String[] args) {   
    	Renren renRen = new Renren();   
        renRen.printText();   
    }   

}