Error creating bean with name 'webSecurityConfig - spring

Question

When I run my spring boot application, I get the following error:
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'webSecurityConfig': Unsatisfied dependency expressed through field 'userDetailsService'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'org.springframework.security.core.userdetails.UserDetailsService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {#org.springframework.beans.factory.annotation.Qualifier("userDetailsServiceImpl"), #org.springframework.beans.factory.annotation.Autowired(required=true)}
Please help me resolve this error...

Answer 1

Simply implement a userService as needed by the error.
You should really implement one according to your authentification behavior (for example find a user in your firm database). And add it to your Spring context (which is automatic for #Service in your componentScan).
package com.company.example; // TODO: change this according to your project
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.dao.DataAccessException;
import org.springframework.orm.ObjectRetrievalFailureException;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.GrantedAuthorityImpl;
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 org.springframework.transaction.annotation.Transactional;
import tudu.domain.Role;
import tudu.domain.User;
import tudu.service.UserService;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Collection;
import java.util.Set;
/**
* An implementation of Spring Security's UserDetailsService.
*
* #author Julien Dubois
*/
#Service("userDetailsService")
public class UserDetailsServiceImpl implements UserDetailsService {
private final Log log = LogFactory.getLog(UserDetailsServiceImpl.class);
#Autowired
private UserService userService;
/**
* Load a user for Spring Security.
*/
#Transactional
public UserDetails loadUserByUsername(String login)
throws UsernameNotFoundException, DataAccessException {
login = login.toLowerCase();
if (log.isDebugEnabled()) {
log.debug("Security verification for user '" + login + "'");
}
User user;
try {
user = userService.findUser(login);
} catch (ObjectRetrievalFailureException orfe) {
throw new UsernameNotFoundException("User '" + login
+ "' could not be found.");
}
user.setLastAccessDate(Calendar.getInstance().getTime());
Set<Role> roles = user.getRoles();
Collection<GrantedAuthority> authorities = new ArrayList<GrantedAuthority>();
for (Role role : roles) {
authorities.add(new GrantedAuthorityImpl(role.getRole()));
}
return new org.springframework.security.core.userdetails.User(login,
user.getPassword(), user.isEnabled(), true, true, true,
authorities);
}
}