Java 实现动态代理实现AOP
package com.chinasofti.bean;
public interface user {
public void print (int d);
}
注意：aop 的所有操作都是面向接口的.
package com.chinasofti.bean;
public class userImp implements user {
@Override
public void print(int d) {
System.out.println(“cyc是帅哥！”);
}
}
package com.chinasofti.test;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
public class TestFactory implements InvocationHandler {
private Object obj;
public Object test(Object obj){
this.obj = obj;
return Proxy.newProxyInstance(this.obj.getClass().getClassLoader(),this.obj.getClass().getInterfaces(),this);
}
@Override
public Object invoke(Object proxy, Method method, Object[] args)
throws Throwable {
System.out.println(args[0]);
if(!method.getName().equals(“prints”)){
return method.invoke(obj, args);
}
return null;
}
}
import com.chinasofti.bean.user;
import com.chinasofti.bean.userImp;
public class test {
@Test
public void test(){
TestFactory tf = new TestFactory();
user u = new userImp();
user u2 = (user)tf.test(u);//这里要注意用父类的引用
u2.print(100);
}
}
桃扇骨
港控/mmm°
分手后的思念是犯贱
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