Question

我正在尝试向我的Rest服务控制器注入依赖，后者使用Jersey实现，
这是我的控制器

@Path("service")
public class ServiceProviderController {
 @Inject
 private ServiceProviderService prov;

 public ServiceProviderController(){}

 @GET
 @Produces(MediaType.APPLICATION_JSON)
 Public ServiceProviders testService(@QueryParam("name") String name) {
    prov.getName(name);
    return name;
 }

这是活页夹类

   import org.glassfish.hk2.utilities.binding.AbstractBinder;
   import com.api.controller.ServiceProviderController;
   import com.api.service.ServiceProviderService;
    public class APIBinder extends AbstractBinder {
    @Override
    protected void configure() {   
      bindAsContract(ServiceProviderService.class).to(ServiceProviderController.class);
    } }

这是应用程序类

import org.glassfish.jersey.server.ResourceConfig;
public class MyApplication extends ResourceConfig {

    public MyApplication(){
        register(new APIBinder());
        packages(true, "com.api.service");
    }
}

我是从像这样的主要方法中调用它的

MyApplication app = new MyApplication();

错误是

org.glassfish.hk2.api.UnsatisfiedDependencyException: There was no object available for injection at SystemInjecteeImpl(requiredType=ServiceProviderService,parent=ServiceProviderController,qualifiers={},position=-1,optional=false,self=false,unqualified=null,912348460)

请帮我解决这个问题，

非常感谢

ERO

添加了一个工厂实现，仍然没有得到修复同样的错误弹出

    public class APIBinder extends AbstractBinder implements Factory<ServiceProviderService> {

    @Override
    protected void configure() {
        // TODO Auto-generated method stub
        bindFactory(this).to(ServiceProviderService.class);
    }

    public ServiceProviderService provide() {
        ServiceProviderService sp= new ServiceProviderService();
        return sp;
    }

    public void dispose(ServiceProviderService instance) {
        // TODO Auto-generated method stub

    }
}

Answer 1

您可以创建工厂。请参阅此主题以获取解释。

How do I configure HK2 to inject an object created by a factory method?

泽西依赖注射不起作用

1 个答案: