Resteasy 3 @Context HttpServletRequest始终为null

问题描述

我们使用的是Resteasy 2，但我们正在升级到Resteasy 3，并且HttpServletRequest注入始终为null.

We were using Resteasy 2 but we are upgrading to Resteasy 3 and the HttpServletRequest injection is always null.

我们修改后的安全拦截器/过滤器如下所示:

Our modified security interceptor/filter that looks like:

@Provider
@ServerInterceptor
@Precedence("SECURITY")
public class SecurityInterceptor implements ContainerRequestFilter, ContainerResponseFilter {

    @Context
    private HttpServletRequest servletRequest;

    @Override
    public void filter(ContainerRequestContext requestContext) throws IOException {

        // Need access to "servletRequest" but it is always null

        if (!isTokenValid(pmContext, method)) {
            requestContext.abortWith(ACCESS_DENIED);
        }
    }


    @Override
    public void filter(ContainerRequestContext requestContext, ContainerResponseContext responseContext) throws IOException {
        // post processing
    }
}

应用程序类如下:

@ApplicationPath("/")
public class RestApplication extends Application {
    private Set<Object> singletons = new HashSet<Object>();
    private Set<Class<?>> empty = new HashSet<Class<?>>();

    public RestApplication() {

        // Interceptors
        this.singletons.add(new SecurityInterceptor());

        // Services
        this.singletons.add(new MyService());
    }

    public Set<Class<?>> getClasses() {
        return this.empty;
    }

    public Set<Object> getSingletons() {
        return this.singletons;
    }
}

示例API:

@Path("/test")
public class MyService extends BaseService {

    @Context HttpServletRequest servletRequest;

    @GET
    @Path("/hello")
    @Produces(MediaType.APPLICATION_JSON)
    public Response hello() {

        // Need access to HttpServletRequest but it's null

        return Response.ok("hello").build();
    }
}

但是，请查看此和此帖子，我看不到HttpServletRequest注入提供程序.

However, looking at this and this posts, I don't see HttpServletRequest injection provider.

这使我相信我可能需要一个额外的插件.这是已安装的内容:

This leads me to believe that I may need an additional plugin. This is what is installed:

jose-jwt
resteasy-atom-provider
resteasy-cdi
resteasy-crypto
resteasy-jackson2-provider
resteasy-jackson-provider
resteasy-jaxb-provider
resteasy-jaxrs
resteasy-jettison-provider
resteasy-jsapi
resteasy-json-p-provider
resteasy-multipart-provider
resteasy-spring
resteasy-validator-provider-11
resteasy-yaml-provider

有什么想法吗?

推荐答案

基于 @peeskillet 的建议，进行修改以返回新的类实例(而不是单例)解决了我的问题.

Based on @peeskillet suggestion, modifying to return new class instances instead of singletons resolved my issue.

因此，修改后的javax.ws.rs.core.Application文件如下所示:

Thus my modified javax.ws.rs.core.Application file looks like:

@ApplicationPath("/")
public class RestApplication extends Application {
    private Set<Object> singletons = new HashSet<Object>();
    private Set<Class<?>> classes = new HashSet<Class<?>>();

    public RestApplication() {

        // Interceptors
        this.classes.add(SecurityInterceptor.class);

        // Services
        this.classes.add(MyService.class);
    }

    public Set<Class<?>> getClasses() {
        return this.classes;
    }

    public Set<Object> getSingletons() {
        return this.singletons;
    }
}

这篇关于Resteasy 3 @Context HttpServletRequest始终为null的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！