为 spring 启动制作黑名单 JWT 令牌

Question

大家好我在这个问题上已经有好几个星期了用 spring 引导芯片 JWT 的黑名单这是我在用户尝试断开连接时所做的，他将密钥令牌存储在 [= 的给定数据库中33=] 有效

@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，没有任何后顾之忧这是照片 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时，当它断开连接时，这个令牌在这里不再有效，我的代码 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标记或不使用黑名单标记进行查询时，出现此错误

{"timestamp":"2019-08-27T11:54:52.063+0000","status":500,"error":"Internal Server Error","message":"No message available","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

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，请检查 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）。

Answer 2

总而言之，问题的发生是因为你的 JWTFilter 不是由 Spring 管理的，所以你不能只让他为你注入 bean 和属性。

幸运的是，有一种简单的方法可以使事情正常进行！

尝试看看添加以下初始化方法是否适合您：

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，请spring给你打针

为 spring 启动制作黑名单 JWT 令牌

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