/**

     * Map value降序排序

     * @param map

     * @param <K>

     * @param <V>

     * @return LinkedHashMap

     */

    public static <K, V extends Comparable<? super V>> Map<K, V> sortByValueAscending(Map<K, V> map){

        List<Map.Entry<K, V>> list = new LinkedList<Map.Entry<K, V>>(map.entrySet());

        Collections.sort(list, new Comparator<Map.Entry<K, V>>(){

            @Override

            public int compare(Map.Entry<K, V> o1, Map.Entry<K, V> o2){

                int compare = (o1.getValue()).compareTo(o2.getValue());

                return -compare;

            }

        });

        Map<K, V> result = new LinkedHashMap<K, V>();

        for (Map.Entry<K, V> entry : list) {

            result.put(entry.getKey(), entry.getValue());

        }

        return result;

    }