Spring security logout-仅在登录用户触发注销时添加消息

Question

@RequestMapping(value ="/logout", method = RequestMethod.GET)
    public ModelAndView logout(HttpServletRequest request, HttpServletResponse response) {
            ModelAndView model = new ModelAndView();
       //some code here to distingish
            model.addObject("msg", "You are succesfully logged out!");
            model.setViewName("login");
        return model;
    }

<http auto-config="true" create-session="ifRequired" use-expressions="true">        
<intercept-url pattern="/logout" access="IS_AUTHENTICATED_REMEMBERED"/>
    <form-login 
        login-page="/login" 
        default-target-url="/home" 
        authentication-failure-url="/login?error" 
        username-parameter="username"
        password-parameter="password" />
    <logout logout-success-url="/logout" invalidate-session="true" delete-cookies="JSESSIONID"/>
    <!-- enable csrf protection -->
    <csrf/>
</http>

<authentication-manager>
    <authentication-provider>
        <user-service>
            <user name="mkyong" password="123456" authorities="ROLE_USER" />
        </user-service>
    </authentication-provider>
</authentication-manager>

Answer 1

<intercept-url pattern="/logout" access="IS_AUTHENTICATED_REMEMBERED"/>

protected void configure(HttpSecurity http) throws Exception {
    http
        .authorizeRequests()
            .antMatchers("/logout").authenticated()
            ...
}