看看什么是Guice

mvn archetype:generate -DgroupId=com.mycompany.app -DartifactId=my-app -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false

MAVEN 创建一个eclipse

import com.google.inject.ImplementedBy;

@ImplementedBy(HelloGuiceImpl.class)
public interface IHelloGuice {
    public boolean check();
}

public class HelloGuiceImpl implements IHelloGuice {

    @Override
    public boolean check() {
        System.out.println("Hello");
        return false;
    }

}

import com.google.inject.Binder;
import com.google.inject.Module;
public class HelloGuiceModule implements Module {

    @Override
    public void configure(Binder arg0) {
        arg0.bind(IHelloGuice.class).to(HelloGuiceImpl.class);
    }

}

import com.google.inject.Guice;
import com.google.inject.Injector;
public class App {
    public static void main(String[] args) {
        // simple 01
        /*
        Injector injector = Guice.createInjector(new HelloGuiceModule());
        IHelloGuice helloGuice = injector.getInstance(IHelloGuice.class);
        helloGuice.check();
        */
        
        Injector injector = Guice.createInjector();
        IHelloGuice helloGuice = injector.getInstance(IHelloGuice.class);
        helloGuice.check();
    }
}