diff --git a/tools/rankserver/app.py b/tools/rankserver/app.py
index 87a5131..e7bafb7 100644
--- a/tools/rankserver/app.py
+++ b/tools/rankserver/app.py
@@ -19,6 +19,8 @@ import functools
 
 
 CONFIG_DIR = '../config' if f7.isOnlineEnv() else '/var/data/conf_test/game2004api_rankserver/config'
+RANK_KEY_PREFIX = 'game2004api:'
+DBNAME_PREFIX = 'gamedb2004_'
 
 def _take_pass(elem):
     return elem[3]
@@ -123,7 +125,7 @@ def fullUpdateRank():
                                port = conf['port'],
                                user = conf['user'],
                                passwd = conf['passwd'],
-                               db = 'gamedb2004_' + str(conf['instance_id']),
+                               db = DBNAME_PREFIX + str(conf['instance_id']),
                                charset = 'utf8'
         )
         cursor = conn.cursor()
@@ -187,7 +189,7 @@ def incrementUpdateRank():
                                port = conf['port'],
                                user = conf['user'],
                                passwd = conf['passwd'],
-                               db = 'gamedb2004_' + str(conf['instance_id']),
+                               db = DBNAME_PREFIX + str(conf['instance_id']),
                                charset = 'utf8'
         )
         cursor = conn.cursor()
@@ -204,19 +206,19 @@ def incrementUpdateRank():
                 if checkchannel(channel):
                     #更新击杀榜
                     if channel not in kill_hash:
-                        kill_list = r.get('game2004api:kill_rank_' + channel)
+                        kill_list = r.get(RANK_KEY_PREFIX + 'kill_rank_' + channel)
                         kill_hash[channel] = [] if not kill_list else json.loads(kill_list)
                     _delRepeatData(row, kill_hash[channel])
                     _refreshData(row, kill_hash[channel], take_kills)
                     #更新胜场榜
                     if channel not in win_hash:
-                        win_list = r.get('game2004api:win_rank_' + channel)
+                        win_list = r.get(RANK_KEY_PREFIX + 'win_rank_' + channel)
                         win_hash[channel] = [] if not win_list else json.loads(win_list)
                     _delRepeatData(row, win_hash[channel])
                     _refreshData(row, win_hash[channel], take_game_times)
                     #更新积分榜
                     if channel not in integral_hash:
-                        integral_list = r.get('game2004api:integral_rank_' + channel)
+                        integral_list = r.get(RANK_KEY_PREFIX + 'integral_rank_' + channel)
                         integral_hash[channel] = [] if not integral_list else json.loads(integral_list)
                     _delRepeatData(row, integral_hash[channel])
                     _refreshData(row, integral_hash[channel], take_integral_times)
@@ -246,6 +248,8 @@ if __name__ == "__main__":
     f7.udplog.info('rankserver start pid:' + str(os.getpid()))
 
     conf = json.loads(open(CONFIG_DIR + '/rankserver.json', 'r').read())
+    RANK_KEY_PREFIX = conf.get('key_prefix', RANK_KEY_PREFIX)
+    DBNAME_PREFIX = conf.get('dbname_prefix', DBNAME_PREFIX)
 
     conf['rushtime'] = 300
     f7.timer.callLater(conf['rushtime'],