myql設置utf8mb4字符 使支持emoji表情符號 Mysql5.5.3以上的版本才支持utf8mb4字符集。 1.修改配置文件 vi /etc/my.cnf 增加如下配置。
client] default-character-set=utf8mb4 [mysql] default-character-set=utf8mb4 [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock character-set-client-handshake=FALSE character-set-server=utf8mb4 collation-server=utf8mb4_general_ci init_connect='SET NAMES utf8mb4' ----------------------------------- 2.重啟mysql服務 檢查字符集設置: SHOW VARIABLES WHERE Variable_name LIKE 'character_set_%' OR Variable_name LIKE 'collation%'; +--------------------------+--------------------+ | Variable_name | Value | +--------------------------+--------------------+ | character_set_client | utf8mb4 | | character_set_connection | utf8mb4 | | character_set_database | utf8mb4 | | character_set_filesystem | binary | | character_set_results | utf8mb4 | | character_set_server | utf8mb4 | | character_set_system | utf8 | | collation_connection | utf8mb4_unicode_ci | | collation_database | utf8mb4_unicode_ci | | collation_server | utf8mb4_unicode_ci | +--------------------------+--------------------+
3.升級Mysql 驅動jar包 建議升級到mysql-connector-java-5.1.21.jar,或者更高版本。
處理以上方式也可以通過,設置全局參數修改,隻不過這是個臨時方案,但不用重啟機器 如: mysql>SET GLOBAL character_set_server=utf8mb4。