相关链接

Spring Security mvnrepository

1. pom 引入

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-security</artifactId>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
    <groupId>cn.hutool</groupId>
    <artifactId>hutool-all</artifactId>
    <version>5.8.27</version>
</dependency>

2. 创建 UserBO 实现 UserDetails（spring security 中）

public class UserBO implements UserDetails {
    private String password;
    private String username;
    private List<GrantedAuthority> authorities;
    private boolean accountNonExpired;
    private boolean accountNonLocked;
    private boolean credentialsNonExpired;
    private boolean enabled;
}

3. 创建 service 实现 UserDetailsService

@Service
public class UserDetailsDetailsService implements IUserDetailsService {

    @Autowired
    IAccountInfoService accountInfoService;
    
    @Override
    public UserBO loadUserByUsername(String username) throws UsernameNotFoundException {
        AccountInfo ai = accountInfoService.findByUsername(username);
        if (null == ai) {
            throw new UsernameNotFoundException("用户名/密码错误");
        }
        return UserBO.trans(ai);
    }
}

4. 创建自定义密码校验

@Component
public class CustomPasswordEncoder implements PasswordEncoder {
    @Override
    public String encode(CharSequence rawPassword) {
        // 自定义加密方法
        return rawPassword.toString();
    }

    @Override
    public boolean matches(CharSequence rawPassword, String encodedPassword) {
        String[] pwd = encodedPassword.split("&");
        return new BCryptPasswordEncoder().matches(rawPassword.toString() + "&" + pwd[1], pwd[0]);
        // 自定义验证方法
    }
}

6. 创建 jwt 服务（可以按照自己的来）

public interface IJwtService {

    /**
     * 用户名
     *
     * @param token 令牌
     * @return 名称
     */
    String extractUsername(String token) throws AuthenticationException;

    /**
     * 验证
     *
     * @param token 令牌
     * @return 结果
     */
    Boolean validateToken(String token);

    /**
     * 获取token
     *
     * @param payload 信息
     * @return token
     */
    String generateToken(Object payload);
}

7. 创建 jwt 实例 （可以按照自己的来）

@Service
public class JwtService implements IJwtService {

    static final JWTSigner JWT_SIGNER = JWTSignerUtil.hs256("!34ADASfhsrujwstrfhwdg@#$$@#efh3".getBytes());


    @Override
    public String extractUsername(String token) throws AuthenticationException {
        JWTPayload payload = JWTUtil.parseToken(token).getPayload();
        if (null != payload) {
            return payload.getClaim("username").toString();
        }
        throw new AuthenticationException();
    }

    @Override
    public Boolean validateToken(String token) {
        return JWTUtil.verify(token, JWT_SIGNER);
    }

    @Override
    public String generateToken(Object payload) {
        return JWTUtil.createToken(BeanUtil.beanToMap(payload, "id", "username", "authorities"), JWT_SIGNER);
    }
}

8. 创建 jwt 过滤器 （可以自定义）

@Component
public class JwtAuthFilter extends OncePerRequestFilter {

    @Autowired
    private IJwtService jwtService;

    @Autowired
    IUserDetailsService userDetailsService;

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
        String authHeader = request.getHeader("Authorization");
        String token = null;
        String username = null;
        if(authHeader != null && authHeader.startsWith("Bearer ")){
            token = authHeader.substring(7);
            username = jwtService.extractUsername(token);
        }

        if(username != null && SecurityContextHolder.getContext().getAuthentication() == null){
            UserDetails details = userDetailsService.loadUserByUsername(username);
            if(jwtService.validateToken(token)){
                UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(details, null, details.getAuthorities());
                authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
                SecurityContextHolder.getContext().setAuthentication(authenticationToken);
            }

        }

        filterChain.doFilter(request, response);
    }
}

9. 创建认证config

@Configuration
@EnableWebSecurity
public class SecurityConfig {

    @Autowired
    JwtAuthFilter jwtAuthFilter;

    @Autowired
    IUserDetailsService userDetailsService;

    @Bean
    public SecurityFilterChain securityFilterChain(HttpSecurity http) throws Exception {
        return http.csrf(AbstractHttpConfigurer::disable)
                .authorizeHttpRequests((ahrc) ->
                        ahrc.requestMatchers("/auth/login")
                                .permitAll()
                                .requestMatchers("/**")
                                .authenticated())
                .authenticationProvider(authenticationProvider())
                .addFilterBefore(jwtAuthFilter, UsernamePasswordAuthenticationFilter.class)
                .sessionManagement((smc) -> smc.sessionCreationPolicy(SessionCreationPolicy.STATELESS))
                .build();

    }

    @Bean
    public PasswordEncoder passwordEncoder(){
        return new CustomPasswordEncoder();
    }

    @Bean
    public AuthenticationProvider authenticationProvider() {
        DaoAuthenticationProvider authenticationProvider = new DaoAuthenticationProvider();
        authenticationProvider.setUserDetailsService(userDetailsService);
        authenticationProvider.setPasswordEncoder(passwordEncoder());
        return authenticationProvider;
    }

    @Bean
    public AuthenticationManager authenticationManager(AuthenticationConfiguration config) throws Exception {
        return config.getAuthenticationManager();
    }

}

10. 编写登陆API

@RestController
@RequestMapping("/auth")
public class AuthController {

    @Autowired
    IJwtService jwtService;

    @Autowired
    AuthenticationManager authenticationManager;

    @PostMapping("/login")
    public IResult<?> login(@RequestParam("username") String username, @RequestParam("password") String password) {
        Authentication authentication = authenticationManager.authenticate(new UsernamePasswordAuthenticationToken(username, password));
        if(authentication.isAuthenticated()){
            Map<String, String> params = new HashMap<>();
            params.put("username", username);
            params.put("token", jwtService.generateToken(authentication.getPrincipal()));
            return ResultVO.success(params);
        } else {
            throw new UsernameNotFoundException("错误的请求");
        }
    }
}