ini create 修改 table div eat ont tab utf

SHOW VARIABLES WHERE Variable_name LIKE ‘character_set_%‘ OR Variable_name LIKE ‘collation%‘;

SET character_set_client = utf8mb4;
SET character_set_connection = utf8mb4;
SET character_set_database = utf8mb4;
SET character_set_results = utf8mb4;
SET character_set_server = utf8mb4;

ALTER DATABASE 數據庫名 CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;

ALTER TABLE tableName CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;

ALTER TABLE tableName CHANGE `content` `content` LONGTEXT CHARACTER SET utf8mb4

另外my.ini（此文件在tomcat安裝目錄和bin在同級）文件要修改這幾處：

[client] default-character-set = utf8mb4
port=3306
[mysql] default-character-set = utf8mb4 [mysqld]
character-set-server = utf8mb4

# The default storage engine that will be used when create new tables when default-storage-engine=INNODB
# Set the SQL mode to strict sql-mode="STRICT_TRANS_TABLES,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"

存儲emoji表情，修改字符集為utf8mb4