Java通过httpclient获取cookie模拟登录

package Step1;

import org.apache.commons.httpclient.Cookie;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.cookie.CookiePolicy;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.methods.PostMethod;
/**
 * 
	* @ClassName: HttpLogin 
	* @Description:  java通过httpclient获取cookie模拟登录
	* @author zeze
	* @date 2015年11月10日 下午4:18:08 
	*
 */

public class HttpLogin {

	public static void main(String[] args) {
		// 登陆 Url
		String loginUrl = "http://passport.mop.com/?targetUrl=http://hi.mop.com/?&g=1447141423230&loginCheck=UNLOGINED";
		// 需登陆后访问的 Url
		String dataUrl = "http://hi.mop.com/?";
		HttpClient httpClient = new HttpClient();

		// 模拟登陆，按实际服务器端要求选用 Post 或 Get 请求方式
		PostMethod postMethod = new PostMethod(loginUrl);

		// 设置登陆时要求的信息，用户名和密码
		NameValuePair[] data = { new NameValuePair("loginName", "chzeze123"), new NameValuePair("loginPasswd", "**") };
		postMethod.setRequestBody(data);
		try {
			// 设置 HttpClient 接收 Cookie,用与浏览器一样的策略
			httpClient.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
			int statusCode=httpClient.executeMethod(postMethod);
							
			// 获得登陆后的 Cookie
			Cookie[] cookies = httpClient.getState().getCookies();
			StringBuffer tmpcookies = new StringBuffer();
			for (Cookie c : cookies) {
				tmpcookies.append(c.toString() + ";");
				System.out.println("cookies = "+c.toString());
			}
			if(statusCode==302){//重定向到新的URL
				System.out.println("模拟登录成功");
				// 进行登陆后的操作
				GetMethod getMethod = new GetMethod(dataUrl);
				// 每次访问需授权的网址时需带上前面的 cookie 作为通行证
				getMethod.setRequestHeader("cookie", tmpcookies.toString());
				// 你还可以通过 PostMethod/GetMethod 设置更多的请求后数据
				// 例如，referer 从哪里来的，UA 像搜索引擎都会表名自己是谁，无良搜索引擎除外
				postMethod.setRequestHeader("Referer", "http://passport.mop.com/");
				postMethod.setRequestHeader("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/31.0.1650.63 Safari/537.36");
				httpClient.executeMethod(getMethod);
				// 打印出返回数据，检验一下是否成功
				String text = getMethod.getResponseBodyAsString();
				System.out.println(text);
			}
			else {
				System.out.println("登录失败");
			}
		}
		catch (Exception e) {
			e.printStackTrace();
		}
	}
}