一、查看编码

SHOW VARIABLES LIKE '%set%';

二、将编码设置为UTF-8

SET character_set_client = utf8;
SET character_set_connection = utf8;
SET character_set_database = utf8;
SET character_set_database = utf8;
SET character_set_results = utf8;
SET character_set_server = utf8;
SET character_set_system = utf8;