Is it possible to inject custom classes into the controller

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技术栈
aws, java
领域
api, backend

调研方向

首先，使用 serverless-java-container 1.6.1、Jersey 2.34 以及所示的 CustomerResource 示例重现 injection 失败。检查 Jersey 集成和依赖注册指南；完成的标准是确定一种受支持的方式来注入 application 或 request 作用域的类，或者记录该配置不受支持。

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描述

question

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Serverless Java Container version: 1.6.1

Implementations: Jersey

Framework version: Jersey 2.34

Frontend service: REST API

Deployment method: Console

Scenario

I'm wondering if it's possible to use @Inject for my own classes in the REST controllers? A RequestScoped or ApplicationScoped bean.

Actual behavior

I get an exception that the class couldn't be injected

@Produces(MediaType.APPLICATION_JSON)
@Path("customers")
@RequestScoped
public class CustomerResource {

    @Inject
    private Database database;

    public CustomerResource() {

    }

    @GET
    public Response getAllCustomers() {
        List<Customer> customers = database.getCustomers();
        return Response.ok(customers).build();
    }
}```

org.glassfish.hk2.api.UnsatisfiedDependencyException: There was no object available for injection at SystemInjecteeImpl(requiredType=Database,parent=CustomerResource,qualifiers={},position=-1,optional=false,self=false,unqualified=null,766696861)
at org.jvnet.hk2.internal.ThreeThirtyResolver.resolve(ThreeThirtyResolver.java:51)
at org.jvnet.hk2.internal.ClazzCreator.resolve(ClazzCreator.java:188)
at org.jvnet.hk2.internal.ClazzCreator.resolveAllDependencies(ClazzCreator.java:211)
at org.jvnet.hk2.internal.ClazzCreator.create(ClazzCreator.java:334)
at org.jvnet.hk2.internal.SystemDescriptor.create(SystemDescriptor.java:463)
at org.glassfish.jersey.inject.hk2.RequestContext.findOrCreate(RequestContext.java:59)
at org.jvnet.hk2.internal.Utilities.createService(Utilities.java:2102)
at org.jvnet.hk2.internal.ServiceLocatorImpl.internalGetService(ServiceLocatorImpl.java:758)
at org.jvnet.hk2.internal.ServiceLocatorImpl.internalGetService(ServiceLocatorImpl.java:721)
at org.jvnet.hk2.internal.ServiceLocatorImpl.getService(ServiceLocatorImpl.java:691)
at org.glassfish.jersey.inject.hk2.AbstractHk2InjectionManager.getInstance(AbstractHk2InjectionManager.java:160)
at org.glassfish.jersey.inject.hk2.ImmediateHk2InjectionManager.getInstance(ImmediateHk2InjectionManager.java:30)
at org.glassfish.jersey.internal.inject.Injections.getOrCreate(Injections.java:105)
at org.glassfish.jersey.server.model.MethodHandler$ClassBasedMethodHandler.getInstance(MethodHandler.java:260)
at org.glassfish.jersey.server.internal.routing.PushMethodHandlerRouter.apply(PushMethodHandlerRouter.java:51)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:86)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:89)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:89)
at org.glassfish.jersey.server.internal.routing.RoutingStage._apply(RoutingStage.java:89)
at org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:69)
at org.glassfish.jersey.server.internal.routing.RoutingStage.apply(RoutingStage.java:38)
at org.glassfish.jersey.process.internal.Stages.process(Stages.java:173)
at org.glassfish.jersey.server.ServerRuntime$1.run(ServerRuntime.java:247)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:248)
at org.glassfish.jersey.internal.Errors$1.call(Errors.java:244)
at org.glassfish.jersey.internal.Errors.process(Errors.java:292)
at org.glassfish.jersey.internal.Errors.process(Errors.java:274)
at org.glassfish.jersey.internal.Errors.process(Errors.java:244)
at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:265)
at org.glassfish.jersey.server.ServerRuntime.process(ServerRuntime.java:234)
at org.glassfish.jersey.server.ApplicationHandler.handle(ApplicationHandler.java:680)

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