Spring boot security get username and password from authentication login to access rest services - spring

Question

I am new to Spring. Client requests to access the rest services, giving username and password in http login provided by Spring, as shown in the image. I don't want to save credentials('username and password') in the application.properties. When I provide the credentials and enter login button, I need to read data (in my case username-'root' and pwd-'root') provided by the user from login and use it in my algorithm, do the process and then authenticate. Is there a way?
Please help me, if anyone has any idea.
authentication login screen
Here is my sample code:
#Configuration
#EnableWebSecurity
public class WebSecurityConfig extends WebSecurityConfigurerAdapter {
#Autowired
private MyBasicAuthenticationEntryPoint authEntryPoint;
#Autowired
private MyUserDetailsService userDetailsService;
#Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
// auth.inMemoryAuthentication().withUser("user1").password("user1Pass").roles("ADMIN")
// .and().withUser("user2").password("user2Pass").roles("ADMIN");
auth.authenticationProvider(authenticationProvider());
}
public DaoAuthenticationProvider authenticationProvider() {
DaoAuthenticationProvider provider = new DaoAuthenticationProvider();
provider.setUserDetailsService(userDetailsService);
// provider.setPasswordEncoder(new BCryptPasswordEncoder());
return provider;
}
// I am trying like this but not sure is this the right way
public void details(User user) {
String name = user.getName();
String password = user.getPassword();
System.out.println("name " + name + "password" + password);
}
// I am trying like this but not sure is this the right way
public void userDetails(UsernamePasswordAuthenticationFilter filter) {
String usernameParameter = filter.getUsernameParameter();
System.out.println(usernameParameter);
String passwordParameter = filter.getPasswordParameter();
System.out.println(passwordParameter);
}
#Override
protected void configure(HttpSecurity http) throws Exception {
http.csrf().disable();
http.authorizeRequests().anyRequest().authenticated();
http.httpBasic().authenticationEntryPoint(authEntryPoint);
}
}
#Component
public class MyBasicAuthenticationEntryPoint extends
BasicAuthenticationEntryPoint{
#Override
public void commence(HttpServletRequest request, HttpServletResponse
response,
AuthenticationException authException) throws IOException,
ServletException {
response.addHeader("WWW-Authenticate", "Basic realm=" +
getRealmName());
response.setStatus(HttpServletResponse.SC_UNAUTHORIZED);
PrintWriter printWriter= response.getWriter();
printWriter.println("Http Status 401-" + authException.getMessage());
}
#Override
public void afterPropertiesSet() throws Exception {
//RealName appears in the login window
setRealmName("Rashmi");
super.afterPropertiesSet();
}
}
#SpringBootApplication
public class SpringRestfulWebServiceApplication extends
SpringBootServletInitializer {
#Autowired
CustomerDetailsController customerDetailsController;
public static void main(String[] args) {
SpringApplication.run(SpringRestfulWebServiceApplication.class, args);
}
#Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder
application) {
return application.sources(SpringRestfulWebServiceApplication.class);
}
}