Java通過httpclient獲取cookie模擬登錄

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通過httpclient獲取cookie模擬登錄
    * @author zeze
    * @date 2015年11月10日 下午4:18:08
    *
 */
 
public class HttpLogin {
 
    public static void main(String[] args) {
        // 登陸 Url
        String loginUrl = "http://passport.mop.com/?targetUrl=http://hi.mop.com/?&g=1447141423230&loginCheck=UNLOGINED";
        // 需登陸后訪問的 Url
        String dataUrl = "http://hi.mop.com/?";
        HttpClient httpClient = new HttpClient();
 
        // 模擬登陸，按實際服務器端要求選用 Post 或 Get 請求方式
        PostMethod postMethod = new PostMethod(loginUrl);
 
        // 設置登陸時要求的信息，用戶名和密碼
        NameValuePair[] data = { new NameValuePair("loginName", "chzeze123"), new NameValuePair("loginPasswd", "**") };
        postMethod.setRequestBody(data);
        try {
            // 設置 HttpClient 接收 Cookie,用與瀏覽器一樣的策略
            httpClient.getParams().setCookiePolicy(CookiePolicy.BROWSER_COMPATIBILITY);
            int statusCode=httpClient.executeMethod(postMethod);
                             
            // 獲得登陸后的 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("模擬登錄成功");
                // 進行登陸后的操作
                GetMethod getMethod = new GetMethod(dataUrl);
                // 每次訪問需授權的網址時需帶上前面的 cookie 作為通行證
                getMethod.setRequestHeader("cookie", tmpcookies.toString());
                // 你還可以通過 PostMethod/GetMethod 設置更多的請求后數據
                // 例如，referer 從哪里來的，UA 像搜索引擎都會表名自己是誰，無良搜索引擎除外
                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);
                // 打印出返回數據，檢驗一下是否成功
                String text = getMethod.getResponseBodyAsString();
                System.out.println(text);
            }
            else {
                System.out.println("登錄失敗");
            }
        }
        catch (Exception e) {
            e.printStackTrace();
        }
    }
}