gold-java/src/main/java/com/example/demo/serviceImpl/UserDetailServiceImpl.java

package com.example.demo.serviceImpl;


import com.example.demo.domain.entity.Admin;
import com.example.demo.mapper.AdminMapper;
import lombok.RequiredArgsConstructor;
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 org.springframework.transaction.annotation.Transactional;
import org.springframework.util.ObjectUtils;
@Transactional
@Service
@RequiredArgsConstructor

public class UserDetailServiceImpl implements UserDetailsService {
    @Autowired
    private AdminMapper adminMapper;

    @Override
    public UserDetails loadUserByUsername(String account) throws UsernameNotFoundException {
        Admin admin=adminMapper.selectByName(account);
        if(ObjectUtils.isEmpty(admin)){
            throw new UsernameNotFoundException("用户名不存在");
        }
        return admin;
    }
}