import org.glassfish.jersey.server.internal.inject.ParamInjectionResolver; //导入依赖的package包/类
protected void configure() {
    bind(PrincipalFactory.class)
            .to(PrincipalFactory.class)
            .to(new TypeLiteral<Factory<P>>() {})
            .in(Singleton.class);
    bind(PrincipalValueFactoryProvider.class)
            .to(AbstractValueFactoryProvider.class)
            .to(ValueFactoryProvider.class)
            .in(Singleton.class);
    bind(PrincipalInjectionResolver.class)
            .to(new TypeLiteral<ParamInjectionResolver<HmacAuth>>() {})
            .to(new TypeLiteral<InjectionResolver<HmacAuth>>() {})
            .in(Singleton.class);
}