diff --git a/tools/rankserver/app.py b/tools/rankserver/app.py
index 35b067a..331dcb1 100644
--- a/tools/rankserver/app.py
+++ b/tools/rankserver/app.py
@@ -20,8 +20,19 @@ def updateRedis():
     pass
 
 def readMysqlData():
-    pass
-
+    mysql_conf = json.loads(open('/var/data/conf_test/game2001api_rankserver/config/rankserver.mysql.cluster.json', 'r').read())
+    for conf in mysql_conf:
+        conn = pymysql.connect(host = conf['host'],
+                               port = conf['port'],
+                               user = conf['user'],
+                               passwd = conf['passwd'],
+                               db = 'gamedb2001_' + str(conf['instance_id']),
+                               charset = 'utf8'
+        )
+        cursor = conn.cursor()
+        cursor.execute('SELECT accountid, user_name FROM user')
+        for row in cursor:
+            print(row[0])
 
 class SelfCheckingHandler(tornado.web.RequestHandler):
 
@@ -39,6 +50,7 @@ def make_app():
     ])
 
 if __name__ == "__main__":
+    readMysqlData()
     conf = json.loads(open('/var/data/conf_test/game2001api_rankserver/config/rankserver.json', 'r').read())
 
     app = make_app()