吉斯不注射執行時標註

-1

@CostRequest private IRequestUrlRepository costRequestUrlRepository;

和

this.injector = Guice.createInjector(new MainModule()); 
     routingResponseShortRepository = injector.getInstance(IRoutingResponseShortRepository.class); 
     costRequestUrlRepository = injector.getInstance(IRequestUrlRepository.class);

，這在我的mainModule.java：

bind(IRequestUrlRepository.class).annotatedWith(CostRequest.class).to(CostRequestUrlRepository.class); 
    bind(IRequestUrlRepository.class).annotatedWith(RouteRequest.class).to(RoutingRequestUrlRepository.class);

，但我得到這個運行時間錯誤：

Exception in thread "main" com.google.inject.ConfigurationException: Guice configuration errors: 

1) No implementation for com.waze.routing.automation.interfaces.IRequestUrlRepository was bound. 
    while locating com.waze.routing.automation.interfaces.IRequestUrlRepository 

1 error 
    at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:1035) 
    at com.google.inject.internal.InjectorImpl.getProvider(InjectorImpl.java:994) 
    at com.google.inject.internal.InjectorImpl.getInstance(InjectorImpl.java:1044) 
    at com.waze.routing.automation.runners.parallel.costRequest.BlParallelGenerator.<init>(BlParallelGenerator.java:76) 
    at com.waze.routing.automation.runners.parallel.costRequest.BlParallelGenerator.main(BlParallelGenerator.java:44) 
Disconnected from the target VM, address: '127.0.0.1:64132', transport: 'socket'

我該如何解決這個問題？

我不能註釋

routingResponseShortRepository = injector.getInstance(@CostRequest IRoutingResponseShortRepository.class);

來源

2016-04-03 Elad Benda

您可以使用com.google.inject.Key實例爲injector.getInstance參數。

injector.getInstance(Key.get(IRequestUrlRepository.class, CostRequest.class));

When feasible, avoid using this method, in favor of having Guice inject your dependencies ahead of time. (see: https://google.github.io/guice/api-docs/latest/javadoc/index.html?com/google/inject/Key.html)

更好地利用@Inject如果可能的話。請參閱：https://github.com/google/guice/wiki/Injections

來源

2016-04-03 15:26:11

爲什麼拋出錯誤？我在場上有一個註釋。 –

'injector.getInstance（IRequestUrlRepository.class）;'這行引發異常，因爲「com.waze.routing.automation.interfaces.IRequestUrlRepository沒有實現被綁定。」這個實現是通過一個特定的（'bind（IRequestUrlRepository.class）.annotatedWith（RouteRequest.class）''）綁定到IRequestUrlRepository.class。參數的註釋被guice api忽略...請參閱https://google.github.io/guice/api-docs/latest/javadoc/index.html?com/google/inject/Injector.html –

謝謝。有什麼辦法可以更優雅地解決這個問題嗎？有註釋？或者你建議的方式來解決這個問題？ –

吉斯不注射執行時標註

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