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
| package com.shjlone.proxy;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Method;
import java.lang.reflect.Proxy;
public class ProxyClient {
public static void main(String[] args) {
Shape realSubject = new Circle();
InvocationHandler handler = new DynamicProxy(realSubject);
Shape subject = (Shape) Proxy.newProxyInstance(handler.getClass().getClassLoader(), realSubject.getClass().getInterfaces(), handler);
subject.draw();
}
}
interface Shape {
void draw();
}
class Circle implements Shape {
@Override
public void draw() {
System.out.println("draw cicle");
}
}
class DynamicProxy implements InvocationHandler {
private Object subject;
public DynamicProxy(Object subject) {
this.subject = subject;
}
@Override
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
return method.invoke(subject, args);
}
}
|