我在扩展JAX-RS应用程序的应用程序类中注册了两个ContainerRequestFilter过滤器和一个ContainerResponseFilter：

筛选为：

register(LoggingResponseFilter.class);
register(AuthorizationRequestFilter.class);
register(LikeRequestFilter.class);

当我尝试调用目标方法资源时,出现异常.

资源方法为：

@Override
@POST
@Path("/{userId}/like")
@TokenResource
@GMTResource   // to validate GMT of client and server
@Like       // for like filter
public Response like(@HeaderParam("token") @NotNull String token,
            @HeaderParam("user-agent") String userAgent,
            @NotNull @Valid UserFriendsBaseModel userFriendsBaseModel)
            throws BadRequestException, UnauthorizedException,
            ForbiddenException, InternalServerError {
    userService.like(userFriendsBaseModel,userAgent);
    return Response.ok().build();
}

例外情况：

    javax.servlet.ServletException: org.glassfish.jersey.server.ContainerException: java.io.IOException: Stream closed
    org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:419)
    org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:381)
    org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:344)
    org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause

org.glassfish.jersey.server.ContainerException: java.io.IOException: Stream closed
    org.glassfish.jersey.servlet.internal.ResponseWriter.rethrow(ResponseWriter.java:256)
    org.glassfish.jersey.servlet.internal.ResponseWriter.failure(ResponseWriter.java:238)
    org.glassfish.jersey.server.ServerRuntime$Responder.process(ServerRuntime.java:480)
    org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:311)
    org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
    org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
    org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    org.glassfish.jersey.internal.Errors.process(Errors.java:267)
    org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
    org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:286)
    org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1072)
    org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:399)
    org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:381)
    org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:344)
    org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause

java.io.IOException: Stream closed
    org.apache.catalina.connector.InputBuffer.read(InputBuffer.java:312)
    org.apache.catalina.connector.CoyoteInputStream.read(CoyoteInputStream.java:200)
    org.glassfish.jersey.message.internal.EntityInputStream.read(EntityInputStream.java:101)
    org.glassfish.jersey.message.internal.ReaderInterceptorExecutor$UnCloseableInputStream.read(ReaderInterceptorExecutor.java:301)
    com.fasterxml.jackson.core.json.ByteSourceJsonBootstrapper.ensureLoaded(ByteSourceJsonBootstrapper.java:503)
    com.fasterxml.jackson.core.json.ByteSourceJsonBootstrapper.detectEncoding(ByteSourceJsonBootstrapper.java:129)
    com.fasterxml.jackson.core.json.ByteSourceJsonBootstrapper.constructParser(ByteSourceJsonBootstrapper.java:224)
    com.fasterxml.jackson.core.JsonFactory._createParser(JsonFactory.java:1242)
    com.fasterxml.jackson.core.JsonFactory.createParser(JsonFactory.java:753)
    com.fasterxml.jackson.jaxrs.base.ProviderBase._createParser(ProviderBase.java:791)
    com.fasterxml.jackson.jaxrs.base.ProviderBase.readFrom(ProviderBase.java:760)
    org.glassfish.jersey.message.internal.ReaderInterceptorExecutor$TerminalReaderInterceptor.invokeReadFrom(ReaderInterceptorExecutor.java:259)
    org.glassfish.jersey.message.internal.ReaderInterceptorExecutor$TerminalReaderInterceptor.aroundReadFrom(ReaderInterceptorExecutor.java:235)
    org.glassfish.jersey.message.internal.ReaderInterceptorExecutor.proceed(ReaderInterceptorExecutor.java:155)
    org.glassfish.jersey.server.internal.MappableExceptionWrapperInterceptor.aroundReadFrom(MappableExceptionWrapperInterceptor.java:74)
    org.glassfish.jersey.message.internal.ReaderInterceptorExecutor.proceed(ReaderInterceptorExecutor.java:155)
    org.glassfish.jersey.message.internal.MessageBodyFactory.readFrom(MessageBodyFactory.java:1075)
    org.glassfish.jersey.message.internal.InboundMessageContext.readEntity(InboundMessageContext.java:853)
    org.glassfish.jersey.server.ContainerRequest.readEntity(ContainerRequest.java:270)
    org.glassfish.jersey.server.internal.inject.EntityParamValueFactoryProvider$EntityValueFactory.provide(EntityParamValueFactoryProvider.java:96)
    org.glassfish.jersey.server.spi.internal.ParameterValueHelper.getParameterValues(ParameterValueHelper.java:81)
    org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$AbstractMethodParamInvoker.getParamValues(JavaResourceMethodDispatcherProvider.java:125)
    org.glassfish.jersey.server.model.internal.JavaResourceMethodDispatcherProvider$ResponseOutInvoker.doDispatch(JavaResourceMethodDispatcherProvider.java:158)
    org.glassfish.jersey.server.model.internal.AbstractJavaResourceMethodDispatcher.dispatch(AbstractJavaResourceMethodDispatcher.java:97)
    org.glassfish.jersey.server.model.ResourceMethodInvoker.invoke(ResourceMethodInvoker.java:389)
    org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:347)
    org.glassfish.jersey.server.model.ResourceMethodInvoker.apply(ResourceMethodInvoker.java:102)
    org.glassfish.jersey.server.ServerRuntime$2.run(ServerRuntime.java:303)
    org.glassfish.jersey.internal.Errors$1.call(Errors.java:271)
    org.glassfish.jersey.internal.Errors$1.call(Errors.java:267)
    org.glassfish.jersey.internal.Errors.process(Errors.java:315)
    org.glassfish.jersey.internal.Errors.process(Errors.java:297)
    org.glassfish.jersey.internal.Errors.process(Errors.java:267)
    org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:317)
    org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:286)
    org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:1072)
    org.glassfish.jersey.servlet.WebComponent.service(WebComponent.java:399)
    org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:381)
    org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:344)
    org.glassfish.jersey.servlet.ServletContainer.service(ServletContainer.java:221)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

我还将请求过滤器的优先级设置为：

@Priority(200)
public class LikeRequestFilter implements ContainerRequestFilter {

    private final Logger _logger = LoggerFactory.getLogger(LikeRequestFilter.class);

    @Inject
    ResourceInfo resourceInfo;

    @Inject
    UriInfo uriInfo;

    @Autowired
    UserManager userManager;

    @Override
    public void filter(ContainerRequestContext requestContext) throws IOException {
        if (resourceInfo.getResourceMethod().isAnnotationPresent(Like.class)) {
            try {
                ObjectMapper jsonMapper = new ObjectMapper();
                final UserFriendsBaseModel usm = jsonMapper
                        .readValue(requestContext.getEntityStream(), UserFriendsBaseModel.class);
                boolean isLiked = userManager.isLiked(usm);
                /**
                 *  If already liked (on api server db ) the check for other conditions
                 *  otherwise consider as first time like request and send to resource for processing 
                 */
                if(isLiked) {
                    /**
                     * Check if already liked on openfire
                     */
                    boolean isRoster = userManager.isRoster(usm);
                    /**
                     * if already roster then check for reverse like
                     * else add entry in add roster failure request
                     */
                    if(isRoster) {
                        /**
                         * Check if reverse like on api server if liked then check for openfire
                         */
                        final UserFriendsBaseModel reverseModel = UserFriendsBaseModel.reverse(usm);
                        boolean isReverseLiked = userManager.isLiked(reverseModel);
                        /**
                         * Reverse liked(Friends) on api server db . Check on openfire
                         */
                        if(isReverseLiked) {
                            boolean isReverseRoster = userManager.isRosterFriend(reverseModel);
                            /**
                             * If friend on openfire then send push to both user for new Match
                             */
                            if(isReverseRoster) {
                                // TODO send push
                            } else {
                                userManager.addRosterFailureRequest(reverseModel);
                            }
                        }

                    } else {
                        userManager.addRosterFailureRequest(usm);
                    }

                    requestContext.abortWith(Response.ok().build());
                }


            } catch (Exception e) {
                _logger.error("Something went wrong in Like request Filter", e);
            }

            _logger.info("end of if in LIKE Filter : ");
        }
        _logger.info("End of LIKE Filter : ");
    }

}

对于AuthorizationRequestFilter过滤器为：

@Priority(100)
public class AuthorizationRequestFilter implements ContainerRequestFilter {

    private final Logger _logger = LoggerFactory
            .getLogger(AuthorizationRequestFilter.class);

    @Inject
    ResourceInfo resourceInfo;

    @Inject
    UriInfo uriInfo;

    @Autowired
    AuthorizationService authorizationService;

响应过滤器为：

public class LoggingResponseFilter implements ContainerResponseFilter {

    final static Logger _logger = Logger.getLogger(LoggingResponseFilter.class
            .getName());

    public void filter(ContainerRequestContext requestContext,ContainerResponseContext responseContext) throws IOException {
        String method = requestContext.getMethod();

        _logger.info("Requesting : " + method + " for path " + requestContext.getUriInfo().getPath());

然后在AuthorizationRequestFilter之后在过滤器链中调用LikeRequestFilter时会出现问题.

我无法找出问题所在？如何链接请求过滤器和响应过滤器？

解决方法:

问题出在LikeRequestFilter.您正在使用ObjectMapper读取请求实体InputStream.通常,InputStreams只能读取一次,然后为空.因此,ObjectMapper读取流后,将其关闭.因此,当Jersey尝试读取它时,由于已关闭,它无法读取.即使它没有关闭,它仍然是空的.

对于此用例,Jersey允许我们缓冲流,因此可以多次读取它.但是,您需要执行的操作是将ContainerRequestContext强制转换为具有bufferEntity()方法的ContainerRequest.它还具有一些方法来帮助读取流,例如readEntity,其用法类似于客户端Response#readEntity().

所以你可以做类似的事情

@Override
public void filter(ContainerRequestContext requestContext) throws IOException {
    try {
        ContainerRequest cr = (ContainerRequest) requestContext;
        cr.bufferEntity();
        final UserFriendsBaseModel bm = cr.readEntity(UserFriendsBaseModel.class);