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ProxyģʽÊÇ×î³£¼ûµÄģʽ,ÔÚÎÒÃÇÉú»îÖд¦´¦¿É¼û,±ÈÈçÏÖÔÚÓиöʲô¸ç,ÌØ±ðµÄ»ð,µ«ÊÇÐÔ±ðÒ»°ãÈË¿´²»³öÀ´,ÄãÈ¥ÎÊ"Ëû",È˼ÒÊÇ
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java¶¯Ì¬´úÀí½á¹¹Í¼ÈçÏÂ:
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public interface Person {
public void ownSex();
public String isBoolean(String str);
}
public class SpringBrother implements Person {
public void ownSex() {
System.out.println("Female!");
}
public String isBoolean(String str) {
return "yes!";
}
}
public class MyInvocationHandler implements InvocationHandler {
private Object proxied = null; //±»´úÀíµÄ¶ÔÏó.
public MyInvocationHandler(Object proxied){
this.proxied = proxied;
}
public Object invoke(Object proxy, Method method, Object[] args)
throws Throwable {
System.out.println("---------- proxy: ----------\n" + proxy.getClass()
+ "\nmethod: " + method + "\nargs: " + args);
Object oo = method.invoke(proxied, args);// ·ÃÎʵײ㷽·¨,ÕâÀïÊÇmain·½·¨ÖеÄownSex»òÕßisBoolean,·µ»Ø·µ»ØÖµ
if(args!=null && args.length!=0){
for(Object o : args){
System.out.println(o);
}
}
if(!(oo==null)){
System.out.println(oo);
}
return null;
}
public static void main(String[] args) {
Person person = (Person)Proxy.newProxyInstance(MyInvocationHandler.class.getClassLoader(),
new Class[]{Person.class}, new MyInvocationHandler(new SpringBrother()));
person.ownSex();
person.isBoolean("is Female!
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map.put("sa","dd");
3.´ÓmapÖÐȡֵ:String str = map.get("sa").toString();½á¹ûÊÇ:str = "dd";
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for ( ......
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import java.awt.Image;
import java.awt.Point;
import java.awt.Toolkit;
import java.awt.image.MemoryImageSource;
import javax.swing.JFrame;
public class HideCursor extends JFrame {
HideCursor() {
this.setBounds(300, 300, 300, 300);
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