SpringSecuritySessionAttributes.java 文件源码

/**
 * This is needed so that expressions in spring-security SPEL work properly.
 */
public static void convertUsernamePasswordToRememberMeAuthentication() {
    final UsernamePasswordAuthenticationToken usernamePassword = (UsernamePasswordAuthenticationToken) getAuthentication();
    final RememberMeAuthenticationToken rememberMe = new RememberMeAuthenticationToken(
            ExtendedAnonymousAuthenticationFilter.KEY, usernamePassword.getPrincipal(),
            usernamePassword.getAuthorities());
    setAuthentication(rememberMe);
}