@SpringBootTest
@RunWith(SpringRunner.class)
public class MyTest {
    @Test
    public void test(){
        //創(chuàng)建解析器
        PasswordEncoder encoder = new BCryptPasswordEncoder();
        //對密碼進(jìn)行加密
        String password = encoder.encode("123");
        System.out.println("------------"+password);
        //判斷原字符加密后和內(nèi)容是否匹配
        boolean result = encoder.matches("123",password);
        System.out.println("============="+result);
    }
}

@Configuration
public class SecurityConfig {
    @Bean
    public PasswordEncoder getPwdEncoder(){
        return new BCryptPasswordEncoder();
    }
}

@Service
public class UserDetailsServiceImpl implements UserDetailsService {
    @Autowired
    private PasswordEncoder encoder;
    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        //1. 查詢數(shù)據(jù)庫判斷用戶名是否存在，如果不存在拋出UsernameNotFoundException
        if(!username.equals("admin")){
            throw new UsernameNotFoundException("用戶名不存在");
        }
        //把查詢出來的密碼進(jìn)行解析,或直接把password放到構(gòu)造方法中。
        //理解:password就是數(shù)據(jù)庫中查詢出來的密碼，查詢出來的內(nèi)容不是123
        String password = encoder.encode("123");
        return new User(username,password, AuthorityUtils.commaSeparatedStringToAuthorityList("admin"));
    }
}