How do you implement security in Spring Boot?

Add spring-boot-starter-security and configure:\n\n@Configuration\n@EnableWebSecurity\npublic class SecurityConfig {\n @Bean\n public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {\n http.authorizeHttpRequests(auth -> auth\n .requestMatchers("/public/**").permitAll()\n .anyRequest().authenticated()\n ).formLogin();\n return http.build();\n }\n}