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。