球衣2. *。如何替换InjectableProvider和AbstractHttpContextInjectable的Jersey 1. * [英] Jersey 2.*. How to replace InjectableProvider and AbstractHttpContextInjectable of Jersey 1.*

问题描述

我想创建一个类，其对象可以使用 @Context 注释注入（或者更好的是自定义注释，我需要传递一个参数的情况注释）转化为资源方法。在泽西岛1. *我将使用 InjectableProvider （在我的情况下与 AbstractHttpContextInjectable ）。我想要实现的是像 @Auth [ 1 ]从 dropwizard （使用泽西1.7）。

I would like to create a class whose objects can be injected using the @Context annotation (or better yet a custom annotation for cases where I need to pass an argument to the annotation) into resource methods. In Jersey 1.* I would have used InjectableProvider (in my case together with AbstractHttpContextInjectable). What I'm trying to achieve is something like @Auth [1] from dropwizard (which uses Jersey 1.7).

据了解，泽西岛的注射能力取而代之的是HK2，我找不到任何我所描述的例子。

The injection capabilities of Jersey were replaced by HK2 as far as I know and I could not find any example of what I'm describing.

编辑：请参阅这个问题，我试图遵循Michal指南时遇到的更多问题。

See this question for further problems I have encountered while trying to follow Michal's guide.

推荐答案

您需要从HK2实施 InjectionResolver< T> 界面。看看Jersey工作区中现有的实现：

You need to implement InjectionResolver<T> interface from HK2. Take a look at existing implementations that are present in Jersey workspace:

• ContextInjectionResolver 处理 @Context


• ParamInjectionResolver 处理 @PathParam ， @QueryParam ，。 ..（通过它的子类）


• 自动登录解决方案处理 @Autowired

• ContextInjectionResolver handling @Context
• ParamInjectionResolver handling @PathParam, @QueryParam, ... (via it's subclasses)
• AutowiredInjectResolver handling @Autowired

一旦你有了这个，你需要扩展 AbstractBinder f rom HK2，并通过 #configure（）方法绑定您的 InjectionResolver ：$ /

Once you have this, you need to extend AbstractBinder from HK2 and bind your InjectionResolver via it's #configure() method:

public class MyResolverBinder extends AbstractBinder {

    @Override
    protected void configure() {
        bind(MyInjectionResolver.class)
                .to(new TypeLiteral<InjectionResolver<MyAnnotation>>() {})
                .in(Singleton.class);
    }
}

...并注册此活页夹的实例您的应用程序类（或通过功能）：

... and register an instance of this binder in your application class (or via feature):

功能：

public class MyFeature implements Feature {

    @Override
    public boolean configure(final FeatureContext context) {
        context.register(new MyResolverBinder());
        return true;
    }
}

注册 MyFeature 到应用程序：

public class JaxRsApplication extends Application {

    @Override
    public Set<Class<?>> getClasses() {
        final HashSet<Class<?>> classes = new HashSet<Class<?>>();
        classes.add(MyFeature.class);
        // Register other providers or resources.
        return classes;
    }
}

注册 MyResolverBinder 或功能在 ResourceConfig

new ResourceConfig()
        // Register either MyFeature
        .register(MyFeature.class)
        // or MyResolverBinder
        .register(new MyResolverBinder())
        // Register other providers or resources
        .packages("my.package");

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