Guice bindInterceptor的使用

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package com.ilucky.guice.test12;import com.google.inject.Guice;import com.google.inject.Injector;import com.google.inject.name.Named;/** * v1.0:20161116 * bindInterceptor的使用 * aop:面向切面编程. */public class MainTest {    public static void main(String[] args) {        Injector injector = Guice.createInjector(new PersonModule());        Person student = injector.getInstance(Person.class);        student.say("say......");        System.out.println("----------------------------------------");        student.say2("say2......");        System.out.println("----------------------------------------");        student.dos("do......");        System.out.println("----------------------------------------");        Test test = injector.getInstance(Test.class);        test.dos("do......");    }}class Test {    @Named("dos")    public void dos(String dos) {        System.out.println("Test do=" + dos);    }}/**我是在方法之前要做的事情Student say=say......我是在方法执行之后做的事情----------------------------------------我是在方法之前要做的事情Student say2=say2......我是在方法执行之后做的事情----------------------------------------我是在方法之前要做的事情Student do=do......我是在方法执行之后做的事情----------------------------------------我是在方法之前要做的事情Test do=do......我是在方法执行之后做的事情*/

package com.ilucky.guice.test12;import com.google.inject.Binder;import com.google.inject.Module;import com.google.inject.matcher.Matchers;import com.google.inject.name.Names;/** * 这里视为某些方法绑定拦截器. */public class PersonModule implements Module {    public void configure(Binder binder) {        binder.bind(Person.class).to(Student.class);        // 测试如果注释掉如下代码.        binder.bindInterceptor(Matchers.any(), Matchers.annotatedWith(Names.named("say")), new MyMethodInterceptor()) ;        binder.bindInterceptor(Matchers.any(), Matchers.annotatedWith(Names.named("dos")), new MyMethodInterceptor()) ;    }}

package com.ilucky.guice.test12;import org.aopalliance.intercept.MethodInterceptor;import org.aopalliance.intercept.MethodInvocation;public class MyMethodInterceptor implements MethodInterceptor {    @Override    public Object invoke(MethodInvocation invocation) throws Throwable {        doBefore();        Object ret = invocation.proceed();        doAfter();        return ret;    }    public void doBefore() {        System.out.println("我是在方法之前要做的事情");    }    public void doAfter() {        System.out.println("我是在方法执行之后做的事情");    }}

package com.ilucky.guice.test12;public interface Person {    public void say(String say);    public void say2(String say);    public void dos(String dos);}

package com.ilucky.guice.test12;import com.google.inject.name.Named;public class Student implements Person {    @Override    @Named("say")    public void say(String say) {        System.out.println("Student say=" + say);    }    @Override    @Named("say")    public void say2(String say) {        System.out.println("Student say2=" + say);    }    @Override    @Named("dos")    public void dos(String dos) {        System.out.println("Student do=" + dos);    }}

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