1、List－>Array

调用List的toArray方法

List<String> list = new ArrayList<String>();
		list.add("1");
		list.add("2");
		list.add("3");
		String[] strings = list.toArray(new String[list.size()]);

调用Array的asList方法

String[] strings = {"1","2","3","4"};
		List<String> list = Arrays.asList(strings);

List与array的相互转换