为 Spring Boot 制作黑名单 JWT 令牌

Question

大家好，我已经在这个问题上待了几个星期 使用 Spring Boot 将 JWT 列入芯片黑名单 这是当用户尝试断开他在给定 mongoDB 数据库中存储他的密钥令牌并且它可以工作时我所做的

@PutMapping(value = "/destroy", consumes = MediaType.APPLICATION_JSON_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
public JwtBlacklist logout(@RequestBody Map<String,String> json, HttpSession httpSession) throws UnsupportedEncodingException {

    String token = json.get("token");

    JwtBlacklist jwtBlacklist = new JwtBlacklist();
    jwtBlacklist.setToken(token);
    jwtBlacklistRepository.save(jwtBlacklist);

    return jwtBlacklistRepository.save(jwtBlacklist);
}   

它将密钥完美地存储在给定的数据库中，无需担心 这是图片 https://ibb.co/dcX0Vnh"tokenStore"

现在最大的问题是，当我尝试将用户在连接期间必须使用的令牌列入黑名单并且断开连接时，此令牌在此处不再有效，代码 I JWTFilter.java

public class JWTFilter extends GenericFilterBean {
    @Value("${app.jwtSecret}")
    public String jwtsecret;
    @Autowired
    public JwtBlacklistRepository jwtBlacklistRepository;

    @Override
    public void doFilter(final ServletRequest req,
                         final ServletResponse res,
                         final FilterChain chain) throws IOException, ServletException {

        final HttpServletRequest request = (HttpServletRequest) req;
        final HttpServletResponse response = (HttpServletResponse) res;
        final String authHeader = request.getHeader("authorization");

        if ("OPTIONS".equals(request.getMethod())) {
            response.setStatus(HttpServletResponse.SC_OK);

            chain.doFilter(req, res);
        } else {

            if (authHeader == null || !authHeader.startsWith("Bearer ")) {
                throw new ServletException("Missing or invalid Authorization header");
            }

            final String token = authHeader.substring(7);
            JwtBlacklist blacklist = this.jwtBlacklistRepository.findByTokenEquals(token);

                    if(blacklist == null) {
                        final Claims claims = Jwts.parser().setSigningKey("topsecretjwtpass".getBytes(StandardCharsets.UTF_8)).parseClaimsJws(token).getBody();
                        request.setAttribute("claims", claims);
                    } else {
                        throw new ServletException("Invalid token." + "");

                    }

            chain.doFilter(req, res);
        }

    }
} 

现在，当我尝试使用黑名单令牌或不使用黑名单令牌进行查询时，出现此错误

{"timestamp":"2019-08-27T11:54:52.063+0000","status":500,"error":"内部 服务器错误","消息":"没有消息 可用","trace":"java.lang.NullPointerException\n\tat com.monarque.bank.monarque.config.JWTFilter.doFilter(JWTFilter.java:47)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)\n\tat org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:320)\n\tat org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)\n\tat org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)\n\tat org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)\n\tat org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:119)\n\tat org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)\n\tat org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)\n\tat org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)\n\tat org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)\n\tat org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)\n\tat org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170)\n\tat org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)\n\tat org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)\n\tat org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)\n\tat org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)\n\tat org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)\n\tat org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:74)\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)\n\tat org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)\n\tat org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)\n\tat org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:334)\n\tat org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:215)\n\tat org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:178)\n\tat org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:357)\n\tat org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:270)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)\n\tat org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)\n\tat org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)\n\tat org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)\n\tat org.springframework.session.web.http.SessionRepositoryFilter.doFilterInternal(SessionRepositoryFilter.java:151)\n\tat org.springframework.session.web.http.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:81)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)\n\tat org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)\n\tat org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)\n\tat org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)\n\tat org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:200)\n\tat org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)\n\tat org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)\n\tat org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)\n\tat org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)\n\tat org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)\n\tat org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)\n\tat org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)\n\tat org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)\n\tat org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:834)\n\tat org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1415)\n\tat org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)\n\tat java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)\n\tat org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)\n\tat java.base/java.lang.Thread.run(Thread.java:835)\n","path":"/v1/users/fa26eea5-7dce-4d79-a7f7-1f848cc58966"}

---

这是模型

public class JwtBlacklist {
    @Id
    private String _id;
    @Indexed(direction = IndexDirection.ASCENDING)
    private String token;

    public String get_id() {
        return _id;
    }

    public void set_id(String _id) {
        this._id = _id;
    }

    public String getToken() {
        return token;
    }

    public void setToken(String token) {
        this.token = token;
    }

    @Override
    public String toString() {
        return "JwtBlacklist{" +
                "_id='" + _id + '\'' +
                ", token='" + token + '\'' +
                '}';
    }
}

---

这是 JwtBlacklist 的存储库

import com.monarque.bank.monarque.dao.models.JwtBlacklist;
import org.springframework.data.mongodb.repository.MongoRepository;


public interface JwtBlacklistRepository extends MongoRepository<JwtBlacklist,String> {


JwtBlacklist findByTokenEquals(String token);

}

Answer 1

总而言之，问题的发生是因为您的 JWTFilter 不是由 Spring 管理的，因此您不能只要求他为您注入 bean 和属性。

幸运的是，有一种简单的方法可以让事情顺利进行！

尝试看看添加以下 init 方法是否适合您：

public class JWTFilter extends GenericFilterBean {
  @Value("${app.jwtSecret}")
  public String jwtsecret;
  @Autowired
  public JwtBlacklistRepository jwtBlacklistRepository;

  //ask spring to inject the values based on current context
  @PostConstruct
  public void init() {
    SpringBeanAutowiringSupport.processInjectionBasedOnCurrentContext(this);
  }

  @Override
  public void doFilter(final ServletRequest req,
                       final ServletResponse res,
                       final FilterChain chain) throws IOException, 
  ServletException {

  ....
  }
}

这个方法，让spring帮你打针。

Answer 2

您收到此错误是因为您在 Filter Bean 中工作并且将 Bean 注入 GenericFilter 不起作用。 我知道解决此问题的一种方法是延迟加载您的存储库。

如果您的存储库为空，则只需检查 doFilter() 的第一行，如果是 获取您的 servletContext 并延迟加载它。 例如：

if (jwtBlacklistRepository == null) { //Lazy Load because filter
    ServletContext servletContext = req.getServletContext();
    WebApplicationContext webApplicationContext = WebApplicationContextUtils.getWebApplicationContext(servletContext);
    jwtBlacklistRepository = webApplicationContext.getBean(JwtBlacklistRepository.class);
}

基本上，您是在强制将该 bean 加载到您的过滤器中。 （如果我对这个陈述有误，请纠正我）。