클래스 QQ 클라이언트가 공간을 열고 Yale CAS를 이용하여 데스크톱 클라이언트 소프트웨어를 로그인한 후 사이트로 이동하여 자동으로 로그인합니다

protected ModelAndView handleRequestInternal(HttpServletRequest request,
            HttpServletResponse response) throws Exception
    {
        ModelAndView signinView=new ModelAndView();
        String username=request.getParameter("username");
        String password=request.getParameter("password");
        // , , 
        bindTicketGrantingTicket(username, password, request, response);
        String viewName=getSignInView(request);
        signinView.setViewName(getSignInView(request));
        return signinView;
    }

 /**
	 * user register process and automatic login.
	 * @param userForm the user information object.
	 * @param request  the HttpServletRequest object
	 * @param response the HttpServletResponse object
	 * @return get result view
	 */
	protected ModelAndView handleUserRegisterInternal(UserInfoVo userForm, HttpServletRequest request, HttpServletResponse response) {
		
		ModelAndView signinView = new ModelAndView(REGISTER_VIEW);;
		final boolean isUnique = userService.checkUserUnique(userForm.getLoginName());
		final boolean isRegistered = isUnique ? registerUser(userForm, request, response) : false;

		if (isRegistered) {
			bindTicketGrantingTicket(userForm.getLoginName(), userForm.getLoginPassword(), request, response);
			signinView.setViewName(getSignInView(request));
		}
		return signinView;
	}

protected void bindTicketGrantingTicket(String loginName, String loginPassword, HttpServletRequest request, HttpServletResponse response){
        try {
            UsernamePasswordCredentials credentials = new UsernamePasswordCredentials();
            credentials.setUsername(loginName);
            credentials.setPassword(loginPassword);
            String ticketGrantingTicket = centralAuthenticationService.createTicketGrantingTicket(credentials);
            ticketGrantingTicketCookieGenerator.addCookie(request, response, ticketGrantingTicket);
        } catch (TicketException te) {
            logger.error("Validate the login name " + loginName + " failure, can't bind the TGT!", te);
        } catch (Exception e){
            logger.error("bindTicketGrantingTicket has exception.", e);
        }
    }

protected String getSignInView(HttpServletRequest request) {
        String service = ServletRequestUtils.getStringParameter(request, "service", "");
        return ("redirect:login" + (service.length() > 0 ? "?service=" + service : ""));
    }

<prop
          key="/registerLogin">
          registerLoginController
    </prop>

<bean id="registerController" class="com.xxxxx.sso.web.RegisterController"   
    p:userService-ref="userService"  
    p:validator-ref="registerValidator"  
    p:centralAuthenticationService-ref="centralAuthenticationService"  
    p:ticketGrantingTicketCookieGenerator-ref="ticketGrantingTicketCookieGenerator"/>

 <servlet-mapping>
          <servlet-name>cas</servlet-name>
          <url-pattern>/registerLogin</url-pattern>
       </servlet-mapping>