Error creating bean with name 'securityConfig': Unsatisfied dependency expressed through field 'securityService' - spring

Question

SecurityConfig
package com.book.entity.security.impl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.security.web.util.matcher.AntPathRequestMatcher;
#Configuration
#EnableWebSecurity
#EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {
#Autowired
private Environment env;
#Autowired
private SecurityService securityService;
private BCryptPasswordEncoder passwordEncoder() {
return SecurityUtility.passwordEncoder();
}
private static final String[] PUBLIC_MATCHERS = { "/css/**", "/js/**", "/image/**", "/", "/myAccount" };
#Override
protected void configure(HttpSecurity http) throws Exception {
http.authorizeRequests().
/* antMatchers("/**"). */
antMatchers(PUBLIC_MATCHERS).permitAll().anyRequest().authenticated();
http.csrf().disable().cors().disable().formLogin().failureUrl("/login?error").defaultSuccessUrl("/")
.loginPage("/login").permitAll().and().logout()
.logoutRequestMatcher(new AntPathRequestMatcher("/logout")).logoutSuccessUrl("/?logout")
.deleteCookies("remember-me").permitAll().and().rememberMe();
}
#Autowired
public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(securityService).passwordEncoder(passwordEncoder());
}
}
SecurityUtility
package com.book.entity.security.impl;
import java.security.SecureRandom;
import java.util.Random;
import org.springframework.context.annotation.Bean;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.stereotype.Component;
#Component
public class SecurityUtility {
private static final String SALT = "salt"; // Salt should be protected carefully
#Bean
public static BCryptPasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder(12, new SecureRandom(SALT.getBytes()));
}
#Bean
public static String randomPassword() {
String SALTCHARS = "ABCEFGHIJKLMNOPQRSTUVWXYZ1234567890";
StringBuilder salt = new StringBuilder();
Random rnd = new Random();
while (salt.length() < 18) {
int index = (int) (rnd.nextFloat() * SALTCHARS.length());
salt.append(SALTCHARS.charAt(index));
}
String saltStr = salt.toString();
return saltStr;
}
}
UserRepository
package com.book.entity.security.impl;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;
import com.book.entity.User;
#Repository
public interface UserRepository extends JpaRepository<User, Long>{
User findByUsername(String userName);
}
SecurityService
package com.book.entity.security.impl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;
import com.book.entity.User;
#Service
public class SecurityService implements UserDetailsService {
#Autowired
private UserRepository userRepository;
#Override
public UserDetails loadUserByUsername(String userName) throws UsernameNotFoundException {
User user = userRepository.findByUsername(userName);
if (null == user) {
throw new UsernameNotFoundException("Username not found");
}
return user;
}
}
Error:
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'securityConfig': Unsatisfied dependency expressed through field 'securityService'; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'securityService': Unsatisfied dependency expressed through field 'userRepository'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userRepository': Invocation of init method failed; nested exception is java.lang.IllegalArgumentException: Failed to create query for method public abstract com.book.entity.User com.book.entity.security.impl.UserRepository.findByUsername(java.lang.String)! Unable to locate Attribute with the the given name [username] on this ManagedType [com.book.entity.User]