ComparatorChain对List对象的属性排序

一、按升序 / 降序对List中的对象进行排序

需要使用到对象

org.apache.commons.beanutils.BeanComparator;
org.apache.commons.collections.comparators.ComparatorChain;

以下是简单实现

public void test(){

	List list = new ArrayList<FTCoin>();
	FTCoin ft1 = new FTCoin(8,"ad");
	FTCoin ft2 = new FTCoin(4,"he");
	FTCoin ft3 = new FTCoin(9,"bo");
	FTCoin ft4 = new FTCoin(5,"zh");
	list.add(ft1);
	list.add(ft2);
	list.add(ft3);
	list.add(ft4);
	ComparatorChain chain = new ComparatorChain();
	//false升序排序，true降序排序
	chain.addComparator(new BeanComparator("id"),false);
	chain.addComparator(new BeanComparator("coin"),true);
	Collections.sort(list,chain);
	for(FTCoin ft:list){
   	 	System.out.println(ft.getId()+","+ft.getCoin());
	}

}

二、输出结果

4,he
5,zh
8,ad
9,bo