Java·´ÉäÖÐMethodÀàinvoke·½·¨µÄÓ÷¨

/**
* InvokeTester.java
* °æȨËùÓÐ(C) 2010 cuiran2001@163.com
* ´´½¨:´ÞȽ 2010-2-9 ÏÂÎç02:07:13
*/
package com.timer.demo.objectsocket;
import java.lang.reflect.Method;
/**
* @author ´ÞȽ
*
*/
public class InvokeTester {
public int add(int param1, int param2) {
return param1 + param2;
}
public String echo(String mesg) {
return "echo" + mesg;
}
public static void main(String[] args) throws Exception {
Class classType = InvokeTester.class;
Object invokertester = classType.newInstance();

Method addMethod = classType.getMethod("add", new Class[] { int.class,
int.class });
//MethodÀàµÄinvoke(Object obj,Object args[])·½·¨½ÓÊյIJÎÊý±ØÐëΪ¶ÔÏó£¬
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//Èç¹ûʵ¼Ê±»µ÷Óõķ½·¨µÄ·µ»ØÀàÐÍÊÇ»ù±¾ÀàÐÍÊý¾Ý£¬ÄÇôinvoke()·½·¨»á°ÑËüת»»ÎªÏàÓ¦µÄ°ü×°ÀàÐ͵ĶÔÏó£¬
//ÔÙ½«Æä·µ»Ø

Object result = addMethod.invoke(invokertester, new Object[] {
new Integer(100), new Integer(200) });
//ÔÚjdk5.0ÖÐÓÐÁË×°Ïä ²ðÏä»úÖÆ new Integer(100)¿ÉÒÔÓÃ100À´´úÌ棬ϵͳ»á×Ô¶¯ÔÚint ºÍintegerÖ®¼äת»»
System.out.println(result);
Method echoMethod = classType.getMethod("echo",
new Class[] { String.class });
result = echoMethod.invoke(invokertester, new Object[] { "hello"});
System.out.println(result);
}
}