@Inject
@Named("cat")
private Pet cat;
	
@Inject
@Named("tiger")
private Pet tiger;
	
class HelloModule extends AbstractModule {

	@Override
	protected void configure() {
		bind(Pet.class).annotatedWith(Names.named("cat")).to(Cat.class);
		bind(Pet.class).annotatedWith(Names.named("tiger")).to(Tiger.class);
	}
}



import javax.inject.Inject;
import javax.inject.Named;
import javax.inject.Singleton;

import com.google.inject.AbstractModule;
import com.google.inject.Guice;
import com.google.inject.Injector;
import com.google.inject.name.Names;


interface Pet{
	void hello();
}

@Singleton
class Cat implements Pet{
	
	public void hello() {
		System.out.println("Cat say hello,"+this);
	}
}

@Singleton
class Tiger implements Pet{
	
	public void hello() {
		System.out.println("tiger say hello,"+this);
	}
}

@Singleton
public class InjectByNameDemo {

	@Inject
	@Named("cat")
	private Pet cat;
	
	@Inject
	@Named("tiger")
	private Pet tiger;

	public static void main(String[] args) throws Exception {
			
		Injector injector = Guice.createInjector(new HelloModule());
		InjectByNameDemo cycleFailDemo = injector.getInstance(InjectByNameDemo.class);
		cycleFailDemo.hello();
		
	}

	
	public void hello() {
		cat.hello();
		tiger.hello();
	}
	
}

class HelloModule extends AbstractModule {

	@Override
	protected void configure() {
		bind(Pet.class).annotatedWith(Names.named("cat")).to(Cat.class);
		bind(Pet.class).annotatedWith(Names.named("tiger")).to(Tiger.class);
	}
}


https://gitee.com/dyyx/hellocode/blob/master/demo/guicedemo/src/main/java/dyyx/pet/InjectByNameDemo.java