您应该在$ code> @Override protected DeploymentContext configureDeployment（） JerseyTest 返回一个 ServletDeploymentContext 。例如

  import javax.inject.Inject; 
 import javax.inject.Provider; 
 import javax.servlet.http.HttpServletRequest; 
 import javax.servlet.http.HttpSession; 
 import javax.ws.rs.GET; 
 import javax.ws.rs.Path; 
 import javax.ws.rs.core.Response; 
 import org.glassfish.hk2.api.Factory; 
 import org.glassfish.hk2.utilities.binding.AbstractBinder; 
 import org.glassfish.jersey.server.ResourceConfig; 
 import org.glassfish.jersey.servlet.ServletContainer; 
 import org.glassfish.jersey.test.DeploymentContext; 
 import org.glassfish.jersey.test.JerseyTest; 
 import org.glassfish.jersey.test.ServletDeploymentContext; 
 import org.glassfish.jersey.test.grizzly.GrizzlyWebTestContainerFactory; 
 import org.glassfish.jersey.test.spi.TestContainerException; 
 import org.glassfish.jersey.test.spi.TestContainerFactory; 
 import org.junit.Test; 

 public class ServletTest extends JerseyTest {

 @Path（/ session）
 public static class SessionResource {

 @Inject 
 HttpSession会话; 

 @GET 
 public Response getSessionId（）{
 return Response.ok（session.getId（））。build（）; 
} 
} 

 public static class HttpSessionFactory implements Factory< HttpSession> {

 private final HttpServletRequest请求; 

 @Inject 
 public HttpSessionFactory（Provider< HttpServletRequest> requestProvider）{
 this.request = requestProvider.get（）; 
} 

 @Override 
 public HttpSession provide（）{
 return request.getSession（）; 
} 

 @Override 
 public void dispose（HttpSession t）{
} 
} 

 @Override 
 protected TestContainerFactory getTestContainerFactory（）{
 return new GrizzlyWebTestContainerFactory（）; 
} 

 @Override 
 protected DeploymentContext configureDeployment（）{
 ResourceConfig config = new ResourceConfig（SessionResource.class）; 
 config.register（new AbstractBinder（）{
 @Override 
 protected void configure（）{
 bindFactory（HttpSessionFactory.class）.to（HttpSession.class）; 
} 
}）; 
 return ServletDeploymentContext.forServlet（
 new ServletContainer（config））。build（）; 
} 

 @Test 
 public void test（）{
 System.out.println（target（session）。request（）。类））; 
} 
} 
 

• 您可以看到更多源代码测试

I am trying to follow the example located here to create a factory in order to inject my HttpSession. Unfortunately no matter what I try it is not working. Not sure what could be the issue.

I have tried injecting just the HttpServletRequest and a provider. Here is my example using a provider. The error is a null pointer exception when trying to access the provider in the provide method. If I try to inject the HttpServletRequest I get no object available for injection. I am running this inside the GrizzlyTestContainer using JerseyTest. Is there something I need to add to my binder in order to bind the HttpServletRequest? I cannot seem to find an example.

public class HttpSessionFactory implements Factory<HttpSession> {

    private final HttpServletRequest request;

    @Inject
    public HttpSessionFactory(Provider<HttpServletRequest> requestProvider) {
        this.request = requestProvider.get();
    }

    @Override
    public HttpSession provide() {
       return request.getSession();
    }

    @Override
    public void dispose(HttpSession t) {
    }
}

You should @Override protected DeploymentContext configureDeployment() in the JerseyTest to return a ServletDeploymentContext. For example

import javax.inject.Inject;
import javax.inject.Provider;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.core.Response;
import org.glassfish.hk2.api.Factory;
import org.glassfish.hk2.utilities.binding.AbstractBinder;
import org.glassfish.jersey.server.ResourceConfig;
import org.glassfish.jersey.servlet.ServletContainer;
import org.glassfish.jersey.test.DeploymentContext;
import org.glassfish.jersey.test.JerseyTest;
import org.glassfish.jersey.test.ServletDeploymentContext;
import org.glassfish.jersey.test.grizzly.GrizzlyWebTestContainerFactory;
import org.glassfish.jersey.test.spi.TestContainerException;
import org.glassfish.jersey.test.spi.TestContainerFactory;
import org.junit.Test;

public class ServletTest extends JerseyTest {

    @Path("/session")
    public static class SessionResource {

        @Inject
        HttpSession session;

        @GET
        public Response getSessionId() {
            return Response.ok(session.getId()).build();
        }
    }

    public static class HttpSessionFactory implements Factory<HttpSession> {

        private final HttpServletRequest request;

        @Inject
        public HttpSessionFactory(Provider<HttpServletRequest> requestProvider) {
            this.request = requestProvider.get();
        }

        @Override
        public HttpSession provide() {
            return request.getSession();
        }

        @Override
        public void dispose(HttpSession t) {
        }
    }

    @Override
    protected TestContainerFactory getTestContainerFactory() {
        return new GrizzlyWebTestContainerFactory();
    }

    @Override
    protected DeploymentContext configureDeployment() {
        ResourceConfig config = new ResourceConfig(SessionResource.class);
        config.register(new AbstractBinder() {
            @Override
            protected void configure() {
                bindFactory(HttpSessionFactory.class).to(HttpSession.class);
            }
        });
        return ServletDeploymentContext.forServlet(
                                 new ServletContainer(config)).build();
    }

    @Test
    public void test() {
        System.out.println(target("session").request().get(String.class));
    }
}

• You can see more examples in the source code tests