JAVA·´Éä»úÖÆÊÂÀýÒ»

import java.lang.reflect.*;
public class ReflectTester {
public Object copy(Object object) throws Exception{
//»ñµÃ¶ÔÏóµÄÀàÐÍ
Class classType=object.getClass();
System.out.println("Class:"+classType.getName());
//ͨ¹ýĬÈϹ¹Ôì·½·¨´´½¨Ò»¸öеĶÔÏó
Object objectCopy=classType.getConstructor(new Class[]{}).newInstance(new Object[]{});
//»ñµÃ¶ÔÏóµÄËùÓÐÊôÐÔ
Field fields[]=classType.getDeclaredFields();
for(int i=0; i<fields.length;i++){
Field field=fields[i];
String fieldName=field.getName();
String firstLetter=fieldName.substring(0,1).toUpperCase();
//»ñµÃºÍÊôÐÔ¶ÔÓ¦µÄgetXXX()·½·¨µÄÃû×Ö
String getMethodName="get"+firstLetter+fieldName.substring(1);
//»ñµÃºÍÊôÐÔ¶ÔÓ¦µÄsetXXX()·½·¨µÄÃû×Ö
String setMethodName="set"+firstLetter+fieldName.substring(1);
//»ñµÃºÍÊôÐÔ¶ÔÓ¦µÄgetXXX()·½·¨
Method getMethod=classType.getMethod(getMethodName,new Class[]{});
//»ñµÃºÍÊôÐÔ¶ÔÓ¦µÄsetXXX()·½·¨
Method setMethod=classType.getMethod(setMethodName,new Class[]{field.getType()});
//µ÷ÓÃÔ­¶ÔÏóµÄgetXXX()·½·¨
Object value=getMethod.invoke(object,new Object[]{});
System.out.println(fieldName+":"+value);
//µ÷Óÿ½±´¶ÔÏóµÄsetXXX()·½·¨
setMethod.invoke(objectCopy,new Object[]{value});
}
return objectCopy;
}
public static void main(String[] args) throws Exception{
Customer customer=new Customer("Tom",21);
customer.setId(new Long(1));
Customer customerCopy=(Customer)new ReflectTester().copy(customer);
System.out.println("Copy information:"+customerCopy.getName()+" "+customerCopy.getAge());
}
}
class Customer{
private Long id;
private String name;
private int age;

public Customer(){}
public Customer(String name,int age){
this.name=name;
this.age=age;
}

p