代理模式--静态代理

package com.gqc.proxy;

import com.gqc.service.ISomeService;
import com.gqc.service.SomeServiceImpl;

//代理类
public class SomeServiceProxy implements ISomeService {

	private ISomeService target;
	
	public SomeServiceProxy() {
		target = new SomeServiceImpl();
	}

	public String dofirst() {
		String result = target.dofirst();
		//增强就发生在这里
		return result.toUpperCase();
	}

	public void doSecond() {
		target.doSecond();
	}

}

package com.gqc.service;

//主业务接口
public interface ISomeService {
	//目标方法
	String dofirst();
	void  doSecond();
}

package com.gqc.service;

//目标类
public class SomeServiceImpl implements ISomeService {

	public String dofirst() {
		System.out.println("执行dofirst");
		return "abcde";
	}

	public void doSecond() {
		System.out.println("执行doSecond");
	}

}

package com.gqc.test;

import com.gqc.proxy.SomeServiceProxy;
import com.gqc.service.ISomeService;
import com.gqc.service.SomeServiceImpl;

public class MyTest {
	public static void main(String[] args) {
		ISomeService service=new SomeServiceProxy();
		String result = service.dofirst();
		System.out.println("result="+result);
		service.doSecond();
	}
	
}