使用httpClient模拟登陆开心网过程中登陆成功但是跳转不成功

package com.haojiahong.test;

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

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 KaixinLoginTest {

	// The HttpClient is used in one session
	private static HttpResponse response;
	private static DefaultHttpClient httpclient = new DefaultHttpClient();

	public static void main(String[] args) throws Exception {
		KaixinLoginTest kaixin = new KaixinLoginTest();
		kaixin.printText();
	}

	// 原因就是在这里，一开始使用post提交url，可是这个url这是一个类似jsp的地址，给它参数后他并不走后台业务逻辑判断，
	// 因此也就不会返回给你正确的跳转地址，即使你测试得到了正确的statusCode
	// 所以一定要是用请求后台acting的地址，actionUrl，这个可以去对应的网页源码中查到。
	private static String url = "http://www.kaixin001.com/login/login.php";

	private static String actionUrl = "https://security.kaixin001.com/login/login_post.php";

	private boolean login() {
		HttpPost httpost = new HttpPost(actionUrl);

		BasicNameValuePair username = new BasicNameValuePair("email",
				"**********你的账号*******");
		BasicNameValuePair password = new BasicNameValuePair("password",
				"**********你的密码*******");
		List<NameValuePair> nvps = new ArrayList<NameValuePair>();

		nvps.add(username);
		nvps.add(password);

		try {
			httpost.setEntity(new UrlEncodedFormEntity(nvps, HTTP.UTF_8));
			response = httpclient.execute(httpost);
			//302表示临时跳转地址。
			System.out.println(response.getStatusLine().getStatusCode()
					+ "++++++++++++++++++++++++++++++++++++++++++++");

		} catch (Exception e) {
			e.printStackTrace();
			return false;
		} finally {
			httpost.abort();
		}
		return true;
	}

	private String getRedirectLocation() {
		//跳转成功后，这里会收到一个完整的url地址，而不是类似于"/home/"这样的地址。
		String location = response.getFirstHeader("Location").getValue();

		if (location == null) {
			return null;
		}
		return location;
	}

	private String getText(String redirectLocation) {
		HttpGet httpget = new HttpGet(redirectLocation);

		ResponseHandler<String> responseHandler = new BasicResponseHandler();
		String responseBody = "";
		try {
			//打印出来跳转成功后的页面源码。
			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));
			}
		}
	}
}
//有些网站会对参数进行加密，action请求地址也写的不明确，比如博客园网站，还没有学会改怎么去模拟登陆，欢迎大神指教。