<!-- 安全組件 -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
    <version>${spring-boot.version}</version>
</dependency>

@EnableWebSecurity
@EnableMethodSecurity
@Configuration
public class SecurityConfig {
    /**
     * 基礎(chǔ)配置
     */
    @Bean
    public SecurityFilterChain filterChain(HttpSecurity httpSecurity) throws Exception {
        // 配置攔截規(guī)則
        httpSecurity.authorizeHttpRequests(authorizeHttpRequests->{
            authorizeHttpRequests
                    .requestMatchers(WhiteConfig.whiteList()).permitAll()
                    .anyRequest().authenticated();
        });
        // 禁用默認(rèn)的登錄和退出
        httpSecurity.formLogin(AbstractHttpConfigurer::disable);
        httpSecurity.logout(AbstractHttpConfigurer::disable);
        httpSecurity.csrf(AbstractHttpConfigurer::disable);
        // 異常時(shí)認(rèn)證處理流程
        httpSecurity.exceptionHandling(exeConfig -> {
            exeConfig.authenticationEntryPoint(authenticationEntryPoint());
        });
        // 添加過濾器
        httpSecurity.addFilterAt(authTokenFilter(),CsrfFilter.class);
        return httpSecurity.build() ;
    }
    @Bean
    public BCryptPasswordEncoder passwordEncoder(){
        return new BCryptPasswordEncoder();
    }
    @Bean
    public AuthenticationEntryPoint authenticationEntryPoint() {
        return new AuthExeHandler();
    }
    @Bean
    public OncePerRequestFilter authTokenFilter () {
        return new AuthTokenFilter();
    }
    /**
     * 認(rèn)證管理
     */
    @Bean
    public AuthenticationManager authenticationManager() {
        return new ProviderManager(authenticationProvider()) ;
    }
    /**
     * 自定義用戶認(rèn)證流
     */
    @Bean
    public AbstractUserDetailsAuthenticationProvider authenticationProvider() {
        return new AuthProvider() ;
    }
}

@Service
public class UserService implements UserDetailsService {
    @Resource
    private UserBaseMapper userBaseMapper;
    @Resource
    private BCryptPasswordEncoder passwordEncoder;
    @Override
    public UserDetails loadUserByUsername(String userName) throws UsernameNotFoundException {
        UserBase queryUser = geyByUserName(userName);
        if (Objects.isNull(queryUser)){
            throw new AuthException("該用戶不存在");
        }
        List<GrantedAuthority> grantedAuthorityList = new ArrayList<>() ;
        grantedAuthorityList.add(new SimpleGrantedAuthority(queryUser.getUserRole())) ;
        return new User(queryUser.getUserName(),queryUser.getPassWord(),grantedAuthorityList);
    }
    public int register (UserBase userBase){
        if (!Objects.isNull(userBase)){
            userBase.setPassWord(passwordEncoder.encode(userBase.getPassWord()));
            userBase.setCreateTime(new Date()) ;
            return userBaseMapper.insert(userBase) ;
        }
        return 0 ;
    }
    public UserBase getById (Integer id){
        return userBaseMapper.selectById(id) ;
    }
    public UserBase geyByUserName (String userName){
        List<UserBase> userBaseList = new LambdaQueryChainWrapper<>(userBaseMapper)
                .eq(UserBase::getUserName,userName).last("limit 1").list();
        if (userBaseList.size() > 0){
            return userBaseList.get(0) ;
        }
        return null ;
    }
}

@Component
public class AuthProvider extends AbstractUserDetailsAuthenticationProvider {
    private static final Logger log = LoggerFactory.getLogger(AuthProvider.class);
    @Resource
    private UserService userService;
    @Resource
    private BCryptPasswordEncoder passwordEncoder;
    @Override
    protected void additionalAuthenticationChecks(
            UserDetails userDetails, UsernamePasswordAuthenticationToken authentication)
            throws AuthenticationException {
        User user = (User) userDetails;
        String loginPassword = authentication.getCredentials().toString();
        log.info("user:{},loginPassword:{}",user.getPassword(),loginPassword);
        if (!passwordEncoder.matches(loginPassword, user.getPassword())) {
            throw new AuthException("賬號(hào)或密碼錯(cuò)誤");
        }
        authentication.setDetails(user);
    }
    @Override
    protected UserDetails retrieveUser(
            String username, UsernamePasswordAuthenticationToken authentication)
            throws AuthenticationException {
        log.info("username:{}",username);
        return userService.loadUserByUsername(username);
    }
}

@Component
public class AuthTokenFilter extends OncePerRequestFilter {
    @Resource
    private AuthTokenService authTokenService ;
    @Resource
    private AuthExeHandler authExeHandler ;
    @Override
    protected void doFilterInternal(@Nonnull HttpServletRequest request,
                                    @Nonnull HttpServletResponse response,
                                    @Nonnull FilterChain filterChain) throws ServletException, IOException {
        String uri = request.getRequestURI();
        if (Arrays.asList(WhiteConfig.whiteList()).contains(uri)){
            // 如果是白名單直接放行
            filterChain.doFilter(request,response);
        } else {
            String token = request.getHeader("Auth-Token");
            if (Objects.isNull(token) || token.isEmpty()){
                // Token不存在，攔截返回
                authExeHandler.commence(request,response,null);
            } else {
                Object object = authTokenService.getToken(token);
                if (!Objects.isNull(object) && object instanceof User user){
                    UsernamePasswordAuthenticationToken authentication =
                            new UsernamePasswordAuthenticationToken(user, null,user.getAuthorities());
                    SecurityContextHolder.getContext().setAuthentication(authentication);
                    filterChain.doFilter(request,response);
                } else {
                    // Token驗(yàn)證失敗，攔截返回
                    authExeHandler.commence(request,response,null);
                }
            }
        }
    }
}

@Service
public class LoginService {
    private static final Logger log = LoggerFactory.getLogger(LoginService.class);
    @Resource
    private AuthTokenService authTokenService ;
    @Resource
    private AuthenticationManager authenticationManager;
    public String doLogin (UserBase userBase){
        AbstractAuthenticationToken authToken = new UsernamePasswordAuthenticationToken(
                userBase.getUserName().trim(), userBase.getPassWord().trim());
        Authentication authentication = authenticationManager.authenticate(authToken) ;
        User user = (User) authentication.getDetails();
        return authTokenService.createToken(user) ;
    }
    public Boolean doLogout (String authToken){
        SecurityContextHolder.clearContext();
        return authTokenService.deleteToken(authToken) ;
    }
}
@Service
public class AuthTokenService {
    private static final Logger log = LoggerFactory.getLogger(AuthTokenService.class);
    @Resource
    private RedisTemplate<String,Object> redisTemplate ;
    public String createToken (User user){
        String userName = user.getUsername();
        String token = DigestUtils.md5DigestAsHex(userName.getBytes());
        log.info("user-name:{},create-token:{}",userName,token);
        redisTemplate.opsForValue().set(token,user,10, TimeUnit.MINUTES);
        return token ;
    }
    public Object getToken (String token){
        return redisTemplate.opsForValue().get(token);
    }
    public Boolean deleteToken (String token){
        return redisTemplate.delete(token);
    }
}

@RestController
public class UserWeb {
    @Resource
    private UserService userService ;
    @PostMapping("/register")
    public String register (@RequestBody UserBase userBase){
        return "register-"+userService.register(userBase) ;
    }
    @GetMapping("/select/{id}")
    public UserBase select (@PathVariable Integer id){
        return userService.getById(id) ;
    }
    @PreAuthorize("hasRole('User')")
    @GetMapping("/user/{id}")
    public UserBase getUser (@PathVariable Integer id){
        return userService.getById(id) ;
    }
    @PreAuthorize("hasRole('Admin')")
    @GetMapping("/admin/{id}")
    public UserBase getAdmin (@PathVariable Integer id){
        return userService.getById(id) ;
    }
    @PreAuthorize("hasAnyRole('User','Admin')")
    @GetMapping("/query/{id}")
    public UserBase query (@PathVariable Integer id){
        return userService.getById(id) ;
    }
}

文檔倉庫：
https://gitee.com/cicadasmile/butte-java-note
源碼倉庫：
https://gitee.com/cicadasmile/butte-spring-parent