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Spring Security和JWT结合

先引入pom.xml，主要看dependency部分：

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.1.5</version>
<relativePath/> <!– lookup parent from repository –>
</parent>
<groupId>com.maxshu</groupId>
<artifactId>test_SpringSecurity</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>test_SpringSecurity</name>
<description>test_SpringSecurity</description>
<properties>
<java.version>17</java.version>
<kotlin.version>1.8.22</kotlin.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-reflect</artifactId>
</dependency>
<dependency>
<groupId>org.jetbrains.kotlin</groupId>
<artifactId>kotlin-stdlib</artifactId>
</dependency>

<dependency>
<groupId>com.mysql</groupId>
<artifactId>mysql-connector-j</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>

<!– Spring Security –>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>

<!– Hutool JWT –>
<dependency>
<groupId>cn.hutool</groupId>
<artifactId>hutool-jwt</artifactId>
<version>5.8.22</version>
</dependency>

<!– GSon, Json –>
<dependency>
<groupId>com.google.code.gson</groupId>
<artifactId>gson</artifactId>
<version>2.10.1</version>
</dependency>

</dependencies>


下面是配置文件application.yml：

server:
address: 0.0.0.0
port: 80

logging:
level:
org.springframework.security.web.FilterChainProxy: trace
org.springframework.security.web.access.ExceptionTranslationFilter: trace
org.springframework.security: debug

spring:
application:
name: test_SpringSecurity
profiles:
active: dev
main.banner-mode: ‘off’
datasource:
driver-class-name: com.mysql.cj.jdbc.Driver
username: db
password: db_password
url: jdbc:mysql://127.0.0.1:3306/test?useSSL=false&useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai
jpa:
database: MYSQL
show-sql: true
generate-ddl: true
database-platform: org.hibernate.dialect.MySQLDialect
hibernate:
ddl-auto: update
naming:
implicit-strategy: org.springframework.boot.orm.jpa.hibernate.SpringImplicitNamingStrategy
physical-strategy: org.hibernate.boot.model.naming.CamelCaseToUnderscoresNamingStrategy # Springboot 3.x用
# physical-strategy: org.springframework.boot.orm.jpa.hibernate.SpringPhysicalNamingStrategy # Springboot 2.x用
properties:
hibernate:
format_sql: true
use_sql_comments: true

要建立一个配置类：

@Configuration
@EnableWebSecurity
//@EnableMethodSecurity
@EnableGlobalMethodSecurity(prePostEnabled = true) //controller启用注解机制的安全,PreAuthorize才会有效
public class WebSecurityConfig {
private static final Logger logger = LoggerFactory.getLogger(WebSecurityConfig.class);
@Autowired
private MyAccessDeniedHandler accessDeniedHandler;
@Autowired
private MyUnauthorizedHandler unauthorizedHandler;

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

@Bean
public JwtAuthenticationTokenFilter jwtAuthenticationTokenFilter() {
return new JwtAuthenticationTokenFilter();
}
@Bean
public JwtAuthenticationProvider jwtAuthenticationProvider(){
return new JwtAuthenticationProvider();
}

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

@Bean
public WebSecurityCustomizer ignoringCustomizer() {
//不需要鉴权的访问放这里，在filter之前执行：
return (web) -> web.ignoring()
//如果这些路径没有在Controller中配置，用这些路径来访问的话也会鉴权失败，而且要跟Controller中严格匹配，包括访问时尾部不要”/”。
//允许对于网站静态资源的无授权访问
.requestMatchers(HttpMethod.GET,”/”,”/*.html”,”/*.css”,”/*.js”,”/static/**”)
//对登录注册允许匿名访问
.requestMatchers(“/user/login”,”/user/register”,”/user/logout”)
//跨域请求会先进行一次options请求
.requestMatchers(HttpMethod.OPTIONS)
//测试时全部运行访问.permitAll();
.requestMatchers(“/test/**”);
}

@Bean
public SecurityFilterChain filterChain2(HttpSecurity httpSecurity) throws Exception {
httpSecurity
//由于使用的是JWT，这里不需要csrf防护
.csrf((csrf)->csrf.disable())
//已经经过鉴权filter的访问，再走http过滤：
.authorizeHttpRequests((authorize) -> authorize
.anyRequest().authenticated());
//基于token，所以不需要session
httpSecurity.sessionManagement((sm)-> sm.sessionCreationPolicy(SessionCreationPolicy.STATELESS));
// 禁用缓存
httpSecurity.headers((header)->header.cacheControl((control)->control.disable()));
//使用自定义provider
httpSecurity.authenticationProvider(jwtAuthenticationProvider());
//添加JWT filter
httpSecurity.addFilterBefore(jwtAuthenticationTokenFilter(), UsernamePasswordAuthenticationFilter.class);
//添加自定义未授权和未登录结果返回
httpSecurity.exceptionHandling((handle)->handle
.accessDeniedHandler(accessDeniedHandler)
.authenticationEntryPoint(unauthorizedHandler));

return httpSecurity.build();
}
}

下面是JwtAuthenticationProvider类：

//登录的时候用来鉴权
public class JwtAuthenticationProvider implements AuthenticationProvider {
    private static final Logger logger = LoggerFactory.getLogger(JwtAuthenticationProvider.class);

    @Autowired
    private PasswordEncoder passwordEncoder;
    @Autowired
    private UserDetailsService userDetailsService;

    @Override
    public Authentication authenticate(Authentication authentication) throws AuthenticationException {
        String username = String.valueOf(authentication.getPrincipal());
        String password = String.valueOf(authentication.getCredentials());

        UserDetails userDetails = userDetailsService.loadUserByUsername(username);
        if(passwordEncoder.matches(password,userDetails.getPassword())){
            if(userDetails instanceof UserDetailsImpl) {
                ((UserDetailsImpl)userDetails).setIsLogin(true);
            }
            return new UsernamePasswordAuthenticationToken(username, password, userDetails.getAuthorities());
        }
        throw new BadCredentialsException("Password is error!");
    }

    @Override
    public boolean supports(Class<?> authentication) {
//        return UsernamePasswordAuthenticationToken.class.equals(authentication);
        return UsernamePasswordAuthenticationToken.class.isAssignableFrom(authentication);
    }
}

下面是JwtAuthenticationTokenFilter类：

//不能定义为Component、Service等。
//所有访问都会来过滤。
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {
    private static final Logger logger = LoggerFactory.getLogger(JwtAuthenticationTokenFilter.class);

    private final static String AUTH_HEADER = "Authorization";
    private final static String AUTH_HEADER_TYPE = "Bearer";

    @Autowired
    private UserDetailsService userDetailsService;
    @Autowired
    private JwtAuthenticationProvider jwtAuthenticationProvider;

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain) throws ServletException, IOException {
        // get token from header:  Authorization: Bearer <token>
        String authHeader = request.getHeader(AUTH_HEADER);
        if (Objects.isNull(authHeader) || !authHeader.startsWith(AUTH_HEADER_TYPE)){
            //不做鉴权处理，所以会直接返回鉴权失败
            filterChain.doFilter(request,response);
            return;
        }

        String authToken = authHeader.split(" ")[1];
        logger.debug("authToken:{}" , authToken);
        //verify token，token的提供在AuthController的登录时给的。
        if (!JWTUtil.verify(authToken, MyConstant.JWT_SIGNER)) {
            logger.info("invalid JWT token.");
            //不做鉴权处理，所以会直接返回鉴权失败
            filterChain.doFilter(request,response);
            return;
        }

        final String userName = (String) JWTUtil.parseToken(authToken).getPayload("username");
        UserDetails userDetails = userDetailsService.loadUserByUsername(userName);

        if(request.getRequestURI().equals("/user/logout")){ //退出登录
            if(userDetails instanceof UserDetailsImpl) {
                ((UserDetailsImpl)userDetails).setIsLogin(false);
            }
            response.setCharacterEncoding("UTF-8");
            response.setContentType("application/json;charset=UTF-8");
            Message message = new Message<>(true, "退出登录成功");
            Gson gson = new Gson();
            response.getWriter().println(gson.toJson(message));
            response.getWriter().flush();
            response.getWriter().close();
            return; //不再过滤了。
        }
        if(userDetails instanceof UserDetailsImpl){
            if(!((UserDetailsImpl)userDetails).getIsLogin()){ //没有登录，即使带了AUTH字段也不行
                //不做鉴权处理，所以会直接返回鉴权失败
                filterChain.doFilter(request,response);
                return;
            }
        }


        //带了token，且已经登录的处理。
        // 注意，这里使用的是3个参数的构造方法，此构造方法将认证状态设置为true
        UsernamePasswordAuthenticationToken authentication =
                new UsernamePasswordAuthenticationToken(userDetails.getUsername(), userDetails.getPassword(), userDetails.getAuthorities());
        authentication.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));

        //将认证过了凭证保存到security的上下文中以便于在程序中使用
        SecurityContextHolder.getContext().setAuthentication(authentication);

        filterChain.doFilter(request, response);
    }
}

下面是MyAccessDeniedHandler类：

@Component
public class MyAccessDeniedHandler implements AccessDeniedHandler {
    private static final Logger logger = LoggerFactory.getLogger(MyAccessDeniedHandler.class);

    @Override
    public void handle(HttpServletRequest request, HttpServletResponse response, AccessDeniedException accessDeniedException) throws IOException, ServletException {
        //logger.error("access error: "+accessDeniedException.getMessage(), accessDeniedException);
        logger.error("access error: "+accessDeniedException.getMessage());
        response.setCharacterEncoding("UTF-8");
        response.setContentType("application/json;charset=UTF-8");
        Message message = new Message<>(false, "禁止访问");
        Gson gson = new Gson();
        response.getWriter().println(gson.toJson(message));
        response.getWriter().flush();
        response.getWriter().close();
    }
}

下面是MyUnauthorizedHandler类：

@Component
public class MyUnauthorizedHandler implements AuthenticationEntryPoint {
    private static final Logger logger = LoggerFactory.getLogger(MyUnauthorizedHandler.class);
    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException) throws IOException, ServletException {
        //logger.error("Unauthorized error: "+authException.getMessage(), authException);
        logger.error("Unauthorized error: "+authException.getMessage());
        response.setCharacterEncoding("UTF-8");
        response.setContentType("application/json;charset=UTF-8");
        Message message = new Message<>(false, "认证失败");
        Gson gson = new Gson();
        response.getWriter().println(gson.toJson(message));
        response.getWriter().flush();
        response.getWriter().close();
    }
}

下面是MyConstant类：

public class MyConstant {
    private static final String JWT_SIGN_KEY = "yunbu_key_de$xxSia4R2#@dffDE";
    public static final HMacJWTSigner JWT_SIGNER = new HMacJWTSigner(
            AlgorithmUtil.getAlgorithm("HMD5"), JWT_SIGN_KEY.getBytes(StandardCharsets.UTF_8));
}

本地调试需要，增加一个CORS_Filter类来允许跨域请求：

@Component
public class CORS_Filter implements Filter {
    @Override
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain) throws IOException, ServletException {
        HttpServletRequest reqs = (HttpServletRequest) req;
        String curOrigin = reqs.getHeader("Origin");
        HttpServletResponse response = (HttpServletResponse) res;
        response.setHeader("Access-Control-Allow-Origin", curOrigin == null ? "true" : curOrigin);
        response.setHeader("Access-Control-Allow-Credentials", "true");
        response.setHeader("Access-Control-Allow-Methods", "POST, PUT, PATCH, GET, OPTIONS, DELETE, HEAD");
        response.setHeader("Access-Control-Max-Age", "3600");
        response.setHeader("Access-Control-Allow-Headers", "Origin, X-Api-Key, Aaccess-Control-Allow-Origin, Authority, Authorization, Content-Type, Accept, Version-Info, X-Requested-With");
//        response.setContentType("application/json;charset=UTF-8");
        chain.doFilter(req, res);

    }
}

下面为Role和User相关的几个类：

@Data
@AllArgsConstructor
@NoArgsConstructor
public class Role {
    private RoleType roleType;
}
public enum RoleType {
    ADMIN("admin"),
    USER("user");

    private String roleName;

    RoleType(String roleName) {
        this.roleName = roleName;
    }

    public String getRoleName() {
        return roleName;
    }
}

@Data
@AllArgsConstructor
@NoArgsConstructor
public class User {
    private String userName;
    private String password;

    private static Boolean isLogin = false;  //static是临时测试为了保持登录状态，后续挪到数据库后就不能用static了。
    public static void setIsLogin(Boolean isLogin){
        User.isLogin = isLogin;
    }
    public static Boolean getIsLogin(){
        return User.isLogin;
    }

    private List<Role> roles;
}
@RequiredArgsConstructor
public class UserDetailsImpl implements UserDetails {
    private final User user;

    public void setIsLogin(Boolean isLogin){
        User.setIsLogin(isLogin);
    }
    public Boolean getIsLogin(){
        return User.getIsLogin();
    }

    @Override
    public Collection<? extends GrantedAuthority> getAuthorities() {
        return user.getRoles()
                .stream()
                .map(role -> new SimpleGrantedAuthority(role.getRoleType().getRoleName()))
                .collect(Collectors.toList());
    }

    @Override
    public String getPassword() {
        return user.getPassword();
    }

    @Override
    public String getUsername() {
        return user.getUserName();
    }

    @Override
    public boolean isAccountNonExpired() {
        return true;
    }

    @Override
    public boolean isAccountNonLocked() {
        return true;
    }

    @Override
    public boolean isCredentialsNonExpired() {
        return true;
    }

    @Override
    public boolean isEnabled() {
        return true;
    }
}
@Service
public class UserDetailsServiceImpl implements UserDetailsService {
    @Autowired
    private PasswordEncoder passwordEncoder;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        User user = getUserByName(username);
        if(user == null){
            throw new UsernameNotFoundException("User isn't exist!");
        }
        return new UserDetailsImpl(user);
    }

    public User getUserByName(String userName) {
        if (!"007".equals(userName)) {
            return null; //找不到user
        }

//        List<Role> roles = List.of(new Role(RoleType.ADMIN), new Role(RoleType.USER));
//        List<Role> roles = List.of( new Role(RoleType.USER));
        List<Role> roles = List.of( new Role(RoleType.ADMIN));
        return new User(userName, passwordEncoder.encode("123456"), roles);
    }
}

几个和前端打交道的DTO类：

@Data
public class Message<T> {
private Boolean success;
private String msg;
private Page page = null;
private List<T> dataList = null;

public Message(){
;
}

public Message(Boolean success, String msg){
setSuccessAndMsg(success, msg);
}
public void setSuccessAndMsg(Boolean success, String msg){
this.success = success;
this.msg = msg;
}

@Data
@AllArgsConstructor
@NoArgsConstructor
public static class Page{
private Integer num;
private Integer size;
private Integer total;
private Long totalRec;
}
}

@Data
public class SignInReq {
    private String username;
    private String password;
}
@Data
@AllArgsConstructor
public class JWTAuthToken {
    String jwtToken;
}

最后两个controller类，第一个处理登陆注册：

@RestController
@RequestMapping("/user")
public class AuthController {
    private static final Logger logger = LoggerFactory.getLogger(AuthController.class);

    @Autowired
    private AuthenticationManager authenticationManager;

    @PostMapping ("/login")
    public Message<JWTAuthToken> postLogin(@RequestBody SignInReq req) {
        logger.info("postLogin, req: {}", req);
        UsernamePasswordAuthenticationToken authenticationToken =
                new UsernamePasswordAuthenticationToken(req.getUsername(), req.getPassword());
        authenticationManager.authenticate(authenticationToken); //在config里设置了之后，这里会调用JwtAuthenticationProvider的鉴权

        //上一步没有抛出异常说明登录成功，我们向用户颁发jwt令牌，检验在JwtAuthenticationTokenFilter里面。
        String token = JWT.create()
                .setPayload("username", req.getUsername())
                .setSigner(MyConstant.JWT_SIGNER)
                .sign();

        //登录成功，返回JWT格式的token给客户端后续再请求时从Header的
        JWTAuthToken jwtAuthToken = new JWTAuthToken(token);
        Message<JWTAuthToken> message = new Message<>(true, "");
        message.setDataList(new ArrayList<JWTAuthToken>(Arrays.asList(jwtAuthToken)));
        return message;
    }

    @GetMapping ("/login")
    public String getLogin() {
        logger.info("getLogin");
        return "getLogin";
    }

    @PostMapping ("/register")
    public Message<String> postRegister(@RequestBody SignInReq req) {
        logger.info("postRegister, req: {}", req);
        //存入数据库。
        Message<String> message = new Message<>(true, "");
        message.setDataList(new ArrayList<String>(Arrays.asList("注册成功")));
        return message;
    }
}

第二个用来处理业务：

@RestController
@RequestMapping("/aaa")
public class TestController {
    private static final Logger logger = LoggerFactory.getLogger(TestController.class);

    @RequestMapping("/aaa")
    public Message<String> aaa() {
        logger.info("aaa");
        Message<String> message = new Message<>(true, "");
        message.setDataList(new ArrayList<String>(Arrays.asList("aaa")));
        return message;
    }

    @PreAuthorize("hasAuthority('admin')") //需要以什么角色来访问
    @GetMapping("/bbb")
    public Message<String> bbb(){
        Message<String> message = new Message<>(true, "");
        message.setDataList(new ArrayList<String>(Arrays.asList("bbb")));
        return message;
    }

    @PreAuthorize("hasAuthority('user')")
    @GetMapping("/ccc")
    public Message<String> ccc(){
        Message<String> message = new Message<>(true, "");
        message.setDataList(new ArrayList<String>(Arrays.asList("ccc")));
        return message;
    }

    @PreAuthorize("hasAuthority('user') || hasAuthority('admin')")
    @GetMapping("/ddd")
    public Message<String> ddd(){
        Message<String> message = new Message<>(true, "");
        message.setDataList(new ArrayList<String>(Arrays.asList("ddd")));
        return message;
    }
}

我们使用curl来模拟注册、登陆、访问、退出登录等操作：

//注册(存数据库时才有用，现在临时测试固定了用户没意义)： curl -X POST -H 'Content-Type:application/json' -d '{"username":"007","password":"123456"}'  'http://127.0.0.1/user/register'

//模拟登录： curl -X POST -H 'Content-Type:application/json' -d '{"username":"007","password":"123456"}'  'http://127.0.0.1/user/login'
//会打印出返回的 token，记住该token。

//模拟登录后的访问：curl -X GET -H 'Authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJITUQ1In0.eyJ1c2VybmFtZSI6IjAwNyJ9.nj2Wp_-CCQGZ44-8uomApw' 'http://127.0.0.1/aaa/aaa'
//这里路径/aaa/aaa、/aaa/bbb、/aaa/ccc、/aaa/ddd的处理参考：TestController

//模拟退出登录： curl -X GET  -H 'Authorization: Bearer eyJ0eXAiOiJKV1QiLCJhbGciOiJITUQ1In0.eyJ1c2VybmFtZSI6IjAwNyJ9.nj2Wp_-CCQGZ44-8uomApw' 'http://127.0.0.1/user/logout'


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