String[] strs = new String[] {"34","33","23","12","45"};
List<String> list = new ArrayList<String>();
//数组转集合
list = Arrays.asList(strs);
//集合转数组
String[] tags = list.toArray(new String[list.size()]);
原文：https://www.cnblogs.com/devin-sl/p/10576299.html