Map根據value進行排序

/**
     * map根據value進行排序
     * @Title: sortByValue 
     * @Description: TODO
     * @param map
     * @return
     * @return: Map<K,V>
     */
    public static <K, V extends Comparable<? super V>> Map<K, V> sortByValue(
            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>>() {
            public int compare(Map.Entry<K, V> o1, Map.Entry<K, V> o2) {
                return (o2.getValue()).compareTo(o1.getValue());
            }
        });

        Map<K, V> result = new LinkedHashMap<K, V>();
        for (Map.Entry<K, V> entry : list) {
            result.put(entry.getKey(), entry.getValue());
        }
        return result;
    }