spring security thymeleaf LockedException custom message - spring-security

Question

I have a spring boot application secured with spring security.
Every thing works fine. but if a user account is locked, how can I display message as Account locked, instead of Invalid user name and password.
My login form
<div class="panel-body">
<div class="row text-center">
<div th:if="${param.error}">Invalid user name and password.</div>
<div th:if="${param.logout}">You have been logged out.</div>
</div>
<div class="row">
<form class="form-horizontal" role="form" th:action="#{/login}" method="post">
<div class="form-group">
<label class="col-md-4 control-label"> User Name </label>
<div class="col-md-6"><input type="text" name="username" />
</div>
</div>
<div class="form-group">
<label class="col-md-4 control-label"> Password </label>
<div class="col-md-6"><input type="password" name="password" />
</div>
</div>
<div class="form-group">
<div class="col-md-offset-4 col-md-6">
<input type="submit" value="Sign In" class="btn btn-primary" />
</div>
</div>
</form>
</div>
</div>
Security config
#Configuration
public static class FormLoginWebSecurityConfigurerAdapter extends WebSecurityConfigurerAdapter {
#Autowired
MyAuthenticationSuccessHandler myAuthenticationSuccessHandler;
#Override
public void configure(WebSecurity web) throws Exception {
String[] unsecuredResources = { "/css/**", "/js/**", "/img/**", "/fonts/**" };
web.ignoring().antMatchers(unsecuredResources);
}
#Override
protected void configure(HttpSecurity http) throws Exception {
String[] unSecuredUrls = { "login.html", "/login", "/home", "/appPwd.html", "/partials/pwdRequest.html" };
http.authorizeRequests().antMatchers(unSecuredUrls).permitAll();
http.authorizeRequests().anyRequest().authenticated().and().formLogin().loginPage("/login").defaultSuccessUrl("/", true)
.successHandler(myAuthenticationSuccessHandler)
/* .failureHandler(myAuthenticationFailureHandler) */.and().logout().permitAll();
}
}

Answer 1

You need to extract the reason for the failure from Spring security. The following code will work.
<div class="error" th:if="${param.error}"
th:with="errorMsg=${session['SPRING_SECURITY_LAST_EXCEPTION'].message}">
Reason: <span th:text="${errorMsg}">Wrong input!</span>
</div>