private TreeCache findFromcache(final String key) {
        for (Map.Entry<String, TreeCache> cache : caches.entrySet()) {
            if (key.startsWith(cache.getKey())) {
                return cache.getValue();
            }
        }
        return null;
    }
find cache with  key.
@param key key.
@return cache.
shenyu-admin/src/main/java/org/apache/shenyu/admin/mode/cluster/impl/zookeeper/ClusterZookeeperClient.java