先看看最简单用法的默认页面效果变化。 SecurityConfig 配置类 @EnableWebSecurity public class SecurityConfig { @Bean public InMemoryUserDetailsManager inMemoryUserDetailsManager(){ return new InMemoryUserDetailsManager( User.withUsername("admin") .password("{noop}123") .roles("admin") .build() ); } @Bean public AuthenticationManager authenticationManager(HttpSecurity http) throws Exception { return http.getSharedObject(AuthenticationManagerBuilder.class) .userDetailsService(inMemoryUserDetailsManager()) .and()...