/** * 无序集合转换为有序列表 * * @param set * @return */ public static List<String> setSortToList(Set<String> set) { List<String> setList = new ArrayList<String>(set); Collections.sort(setList, new Comparator<String>() { @Override public int compare(String o1, String o2) { return o1.compareTo(o2); } }); return setList; }