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.重啓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,只不過這是個臨時方案,但不用重啓機器
如:
mysql>SET GLOBAL character_set_server=utf8mb4
......