WebSecurityConfiguration.java

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.password.PasswordEncoder;


@EnableWebSecurity
public class WebSecurityConfiguration extends WebSecurityConfigurerAdapter {


    @Autowired
    private PasswordEncoder passwordEncoder;

    @Bean(name = "authenticationManager")
    @Override
    public AuthenticationManager authenticationManagerBean() throws Exception {
        return super.authenticationManagerBean();
    }

    @Override
    protected void configure(AuthenticationManagerBuilder auth) throws Exception {
        auth.inMemoryAuthentication().withUser("user").password(passwordEncoder.encode("secret")).roles("USER");
        auth.inMemoryAuthentication().withUser("admin").password(passwordEncoder.encode("secret")).roles("ADMIN");
    }
}