Guice入门实例和单例模式

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package com.ilucky.guice;import com.google.inject.Guice;import com.google.inject.Injector;/** * v1.0:20161114 * @author IluckySi * 入门实例和单例模式 * Binder接口作用是创建接口和其实现类的映射关系. * Module接口作用是维护一组 Bindings. * Injector接口作用是创建对象和维护对象的生命周期. * Guice类是创建Injector和Modules的联系. */public class MainTest {    public static void main(String[] args) {        Injector injector = Guice.createInjector(new MyModule());        MyService myService = injector.getInstance(MyService.class);        myService.service("Hello Guice!");        //测试单例模式:binder.bind(MyService.class).to(MyServiceImpl.class).in(Scopes.SINGLETON);.        MyService myService2 = injector.getInstance(MyService.class);        System.out.println(myService.equals(myService2));//true.    }}

package com.ilucky.guice;import com.google.inject.Binder;import com.google.inject.Module;import com.google.inject.Scopes;public class MyModule implements Module{    public void configure(Binder binder) {        //binder.bind(MyService.class).to(MyServiceImpl.class);        binder.bind(MyService.class).to(MyServiceImpl.class).in(Scopes.SINGLETON);    }}

package com.ilucky.guice;public interface MyService {    public void service(String service);}

package com.ilucky.guice;public class MyServiceImpl implements MyService {    public void service(String service) {        System.out.println("===>" + service);    }}

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