Question

根据文档，应该可以使用DynamicFeature来获取资源和子资源。作为一种效果，我期望在调用子资源端点时注册并调用过滤器 - 即GET /some/sub/x。然而，以下对我不起作用（也没有其他类似方法）：

注释

@NameBinding
@Target({METHOD, TYPE})
@Retention(RetentionPolicy.RUNTIME)
public @interface SomeFilterAnn {}

资源

@SomeFilterAnn
@Path("/some")
public class SomeResource {
  @GET
  public String getSome() {
    return "some";
  }

  @Path("/sub")
  public SubResource getSub() {
    return new SubResource();
  }

  @SomeFilterAnn
  @Path("/x")
  public static class SubResource {
    @GET
    public String getSome() {
      return "sub";
    }
  }
}

过滤器（它实际上更复杂，由DynamicFilter配置）

@SomeFilterAnn
public class SomeFilter implements ContainerRequestFilter {
  private static final Logger LOG = LoggerFactory.getLogger(SomeFilter.class);

  @Override
  public void filter(ContainerRequestContext requestContext) throws IOException {
    LOG.info("filter called");
  }
}

这里是DynamicFeature，我想为资源和子资源注册过滤器。实际上我希望configure()也会SubResource调用resourceInfo.getResourceClass() == SubResource.class所以@Provider public class SomeDynamicFeature implements DynamicFeature { private static final Logger LOG = LoggerFactory.getLogger(SomeDynamicFeature.class); @Override public void configure(ResourceInfo resourceInfo, FeatureContext context) { Class<?> resourceClass = resourceInfo.getResourceClass(); // this works if (resourceClass == SomeResource.class) { LOG.info("register resource filter"); context.register(new SomeFilter(/*some config*/)); } // this does not work (not called for Subresource) if (resourceClass == SomeResource.SubResource.class) { LOG.info("register resource filter"); context.register(new SomeFilter(/*some config*/)); } // this also does not work (filter not called for Subresource) if (resourceInfo.getResourceMethod().getReturnType() == SomeResource.SubResource.class) { LOG.info("register subresource filter"); context.register(new SomeFilter(/*some config*/)); } } }，但无法实现此目标。
```
SomeFilter
```

我在使用CXF且没有Jersey或RESTEasy的WildFly 8.2上运行此操作

修改

我发现使用@Provider注释DynamicFeature可以让过滤器无需sudo echo 0 > /proc/sys/kernel/randomize_va_space即可运行，但我不知道如何配置我的过滤器 - 这里是{{ 3}}关于它。

没有为子资源调用JAX-RS DynamicFilter

0 个答案: