User password override, re-enabled login page.

demo/src/main/java/com/example/demo/config/SecurityConfig.java

@@ -3,17 +3,29 @@ package com.example.demo.config;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.security.config.annotation.web.builders.HttpSecurity;
+import org.springframework.security.core.userdetails.User;
+import org.springframework.security.core.userdetails.UserDetails;
+import org.springframework.security.core.userdetails.UserDetailsService;
+import org.springframework.security.provisioning.InMemoryUserDetailsManager;
 import org.springframework.security.web.SecurityFilterChain;
 
 @Configuration
 public class SecurityConfig {
-
     @Bean
-    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
-        http.csrf(csrf -> csrf.disable())
-            .authorizeHttpRequests(auth -> auth
-                .anyRequest().permitAll()
-            );
-        return http.build();
+    public UserDetailsService userDetailsService() {
+        UserDetails user = User.builder()
+                .username("admin")
+                .password("{noop}password")
+                .build();
+        return new InMemoryUserDetailsManager(user);
     }
+
+//    @Bean
+//    public SecurityFilterChain filterChain(HttpSecurity http) throws Exception {
+//        http.csrf(csrf -> csrf.disable())
+//            .authorizeHttpRequests(auth -> auth
+//                .anyRequest().permitAll()
+//            );
+//        return http.build();
+//    }
 }