mysql存储emoji表情要使用utf8mb4字符集,这是4字节存储,最低支持版本为5.5.3+,若不是,请升级到较新版本。
修改mysql配置文件
Window目录:mysql/my.iniUbuntu16.04目录:/etc/mysql/conf.d/mysql.cnf 配置Client/etc/mysql/mysql.conf.d/mysql.cnf 配置Server其他目录:一般在etc/mysql/my.cnf
在mysql配置文件添加以下三部分内容:
[client]default-character-set = utf8mb4[mysql]default-character-set = utf8mb4[mysqld]character-set-client-handshake = FALSEcharacter-set-server = utf8mb4collation-server = utf8mb4_unicode_ciinit_connect='SET NAMES utf8mb4'
修改完后重启mysql,检查字符集
# mysql -uroot -p# mysql > SHOW VARIABLES WHERE Variable_name LIKE 'character_set_%' OR Variable_name LIKE 'collation%';
结果
+--------------------------+--------------------+| 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 |+--------------------------+--------------------+rows in set (0.00 sec)
Java链接配置
jdbc.driverClass=com.mysql.jdbc.Driverjdbc.jdbcUrl=jdbc:mysql://localhost:3306/tgb?useUnicode=true&characterEncoding=utf8&autoReconnect=true&rewriteBatchedStatements=TRUEjdbc.user=rootjdbc.password=jdbc.initialPoolSize=10jdbc.minPoolSize=10jdbc.maxPoolSize=50jdbc.maxIdleTime=3600jdbc.testConnectionOnCheckout=falsejdbc.testConnectionOnCheckin=truejdbc.idleConnectionTestPeriod=3600