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原文地址：https://code.google.com/p/google-guice/wiki/ToConstructorBindings
Constructor Bindings（构造器绑定）：在父类型上绑定子类实现的构造函数。
贴代码：
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | public interface Animal { void say(); } import com.google.inject.AbstractModule; public class AnimalModule extends AbstractModule { @Override protected void configure() { bind(String. class ).toInstance( "Tom" ); try { bind(Animal. class ).toConstructor(Cat. class .getConstructor(String. class )); } catch (NoSuchMethodException e) { addError(e); } System.out.println( "run AnimalModule.configure()" ); } } public class Cat implements Animal { String name; public Cat(String name) { this .name = name; System.out.println( "run Cat.constructor()" ); } @Override public void say() { System.out.println( "i am a cat" ); } @Override public String toString() { return "name==>" + this .name; } } import com.google.inject.Guice; import com.google.inject.Injector; public class Test { public static void main(String[] args) { Injector injector = Guice.createInjector( new AnimalModule()); Animal cat = injector.getInstance(Animal. class ); System.out.println(cat); cat.say(); } } |
执行结果：
run AnimalModule.configure() run Cat.constructor() name==>Tom i am a cat转载地址：http://auxyo.baihongyu.com/