update data.

data/sql/data.sql

@@ -1,3 +1,4 @@
+SET NAMES utf8mb4;
 SET FOREIGN_KEY_CHECKS=0;
 
 REPLACE INTO `t_location` (`location_id`, `location_pid`, `location_name`, `location_postnum`, `location_level`, `location_phonenum`) VALUES (1, NULL, '中国', NULL, NULL, NULL);