toString 클래스 유틸리티 샘플

package client;

import java.lang.reflect.AccessibleObject;
import java.lang.reflect.Field;
import java.util.ArrayList;
import java.util.List;

public class ClassUtils 
{
	private ClassUtils() {
	}

	public static String toString(Object o) 
	{
		String ret = null;
		List<Object> list = null;
		
		try {
			list = new ArrayList<Object>();
			ClassUtils.toString(o, o.getClass(), list);
			ret = o.getClass().getName().concat(list.toString());
		} catch (Exception e) {
			e.printStackTrace();
			ret = null;
		}
		return ret;
	}

	private static void toString(Object o, Class<?> clazz, List<Object> list)
	{
		Field[] f = null;
		try {
			f = clazz.getDeclaredFields();
			AccessibleObject.setAccessible(f, true);
			for (int i = 0; i < f.length; i++) {
				list.add(f[i].getName() + "=" + f[i].get(o));
			}
			if (clazz.getSuperclass().getSuperclass() != null)
				toString(o, clazz.getSuperclass(), list);
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

package client;

public class ClassUtilsClient 
{
	public String hello = "Test";
	public int i = 9999;

	public static void main(String... args) {
		System.out.println(ClassUtils.toString(
				new ClassUtilsClient()));
	}
}

client.ClassUtilsClient[hello=Test, i=9999]

• BeanUtils을 가지고 toString() 구현하기

Responses[4]

Posted by 미물 on 2010년 2월 9일 (화) 오후 9시 09분 00초 #