HttpClient 模拟登录手机版新浪微博

/**
     * 获取手机版微博的cookies
     * @param username
     *             微博用户名
     * @param password
     *             微博密码
     * @return    Cookie[]
     */
    public Cookie[] getMCookies(String username, String password){
        Cookie[] cookies = null;
        HttpClient client;
        PostMethod post = null;
        try{
            Document doc = Jsoup.connect("http://3g.sina.com.cn/prog/wapsite/sso/login.php").get();
            Elements elements = doc.getElementsByTag("postfield");
        
            String randUrl = doc.getElementsByTag("go").first().attr("href");        
            String pwName = elements.get(1).attr("name");
            String vkValue = elements.get(2).attr("value");
            String backURL = elements.get(4).attr("value");
            String backTitle = elements.get(5).attr("value");
            
            String url = "http://3g.sina.com.cn/prog/wapsite/sso/"+randUrl;
    
            post = new PostMethod(url);
            
            post.setRequestHeader("User-Agent","Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.77 Safari/537.1");
            post.setRequestHeader("Referer", "http://weibo.com/");
            post.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
            
            post.setParameter("mobile", username);
            post.setParameter(pwName,password);
            post.setParameter("vk", vkValue);
            post.setParameter("remember", "on");
            post.setParameter("backURL", backURL);
            post.setParameter("backTitle", backTitle);
            post.setParameter("submit", "1");            
            
            client = new HttpClient();            
            client.executeMethod(post);
            cookies = client.getState().getCookies();
        }catch(IOException e){
            e.printStackTrace();
        }finally{
            post.abort();
        }
            
        return cookies; 
    }