| 例2：使用Java Annotation
我们也可以直接为HelloGuice加上@ImplementedBy注释，而省略掉对com.google.inject.Module的实现。
HelloGuice.java
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package com.test.guice;
import com.google.inject.ImplementedBy;
@ImplementedBy(HelloGuiceImpl.class)
public interface HelloGuice {
public void sayHello();
}
package com.test.guice;
import com.google.inject.ImplementedBy;
@ImplementedBy(HelloGuiceImpl.class)
public interface HelloGuice {
public void sayHello();
}
TestGuice.java
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package com.test.guice;
import junit.framework.TestCase;
import com.google.inject.Guice;
import com.google.inject.Injector;
public class TestGuice extends TestCase {
public void testHelloGuice() {
//Injector injector = Guice.createInjector(new HelloGuiceModule());
Injector injector = Guice.createInjector();
HelloGuice helloGuice = injector.getInstance(HelloGuice.class);
helloGuice.sayHello();
}
}
package com.test.guice;
import junit.framework.TestCase;
import com.google.inject.Guice;
import com.google.inject.Injector;
public class TestGuice extends TestCase {
public void testHelloGuice() {
//Injector injector = Guice.createInjector(new HelloGuiceModule());
Injector injector = Guice.createInjector();
HelloGuice helloGuice = injector.getInstance(HelloGuice.class);
helloGuice.sayHello();
}
}
HelloGuiceModule.java不再需要。其余的文件内容不变。
运行TestGuice，打印出：
Hello Guice!
本文通过范例简单地介绍了Google Guice的使用。至于Google Guice与Spring，Struts等的集成，本文未加涉及，请参考其他文章。 |
