import org.apache.commons.httpclient.Cookie;
        import org.apache.commons.httpclient.HttpClient;
        import org.apache.commons.httpclient.HttpException;
        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;

        HttpClient httpClient = new HttpClient();

        // 模擬登陸，按實際伺服器端要求選用 Post 或 Get 請求方式
        PostMethod postMethod = new PostMethod("http://123.com");

        // 設定登陸時要求的資訊，一般就使用者名稱和密碼，驗證碼自己處理了
        NameValuePair[] data = { new NameValuePair("username"
 
, "20169065"),
                new NameValuePair("password", "Q123123q")

        };
        postMethod.setRequestBody(data);
        String tmpcookies = "";
        try {
            // 設定 HttpClient 接收 Cookie,用與瀏覽器一樣的策略
            httpClient.getParams().setCookiePolicy(
                    CookiePolicy.BROWSER
 
_COMPATIBILITY);
            httpClient.executeMethod(postMethod);

            // 獲得登陸後的 Cookie
            Cookie[] cookies = httpClient.getState().getCookies();
            tmpcookies = "";
            for (Cookie c : cookies) {
                tmpcookies += c.toString() + ";";
            }

        } catch (Exception e) {
            e.printStackTrace();
        }
        System.out.println("登入成功:" + loginUrl);
        System.out.println("登入成功使用者名稱:" + "20169065");
        System.out.println("登入成功密碼:" + "Q123123q");
        ------------------------------------------------------------
        GetMethod getMethod = new GetMethod("http://123.com");
        getMethod.setRequestHeader("Cookie", tmpcookies);
        // 例如，referer 從哪裡來的，UA 像搜尋引擎都會表名自己是誰，無良搜尋引擎除外
        postMethod.setRequestHeader("Referer", "http://123.com");
        postMethod.setRequestHeader("User-Agent", "Unmi Spot");
        httpClient.executeMethod(getMethod);
        System.out.println(getMethod.getResponseBodyAsString());;