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  • MySql支持emoji表情设置

    使用MySql支持Emoji表情

    将字段设置成utf8mb4

    ALTER TABLE `t_order`
    MODIFY COLUMN `remark`  varchar(512) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NULL COMMENT '订单备注'

    以为这样就OK了,结果输入emoji表情,执行insert失败,失败信息为:

    2020-12-23 10:35:09 [org.apache.juli.logging.DirectJDKLog:182] - Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.jdbc.UncategorizedSQLException: 
    ### Error updating database.  Cause: java.sql.SQLException: Incorrect string value: 'xF0x9Fx98x83xF0x9F...' for column 'remark' at row 1
    ### The error may involve com.xima.shop.mapper.OrderMapper.insertUseGeneratedKeys-Inline
    ### The error occurred while setting parameters
    ### SQL: INSERT INTO t_order  ( state,flag_del,create_user,create_time,update_user,update_time,memo,order_no,order_time,user_id,user_name,user_phone,total_amt,pay_amt,pay_type,pay_no,flag_sms_send,sms_send_count,state_order,cancel_reason,logistics_num,remark ) VALUES ( ?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,? )
    ### Cause: java.sql.SQLException: Incorrect string value: 'xF0x9Fx98x83xF0x9F...' for column 'remark' at row 1
    ; uncategorized SQLException; SQL state [HY000]; error code [1366]; Incorrect string value: 'xF0x9Fx98x83xF0x9F...' for column 'remark' at row 1; nested exception is java.sql.SQLException: Incorrect string value: 'xF0x9Fx98x83xF0x9F...' for column 'remark' at row 1] with root cause
    java.sql.SQLException: Incorrect string value: 'xF0x9Fx98x83xF0x9F...' for column 'remark' at row 1
    

      

    上网搜索了一下,还是数据库服务器设置的问题,使用命令更新数据库服务器的编码为utf8mb4

    set character_set_server=utf8mb4

    查看数据库编码show variables like '%char%'

    show variables like '%char%'

    中间小插曲:

    我们的数据库使用的阿里云rds,使用root账号执行set character_set_server=utf8mb4,但是develop账号仍然看到的是utf8编码,于是乎,到阿里云后台管理界面修改数据库参数 character_set_server  = utfmb4

    参考以下资料:

    https://www.cnblogs.com/java-synchronized/p/7237146.html

    https://blog.51cto.com/wangfoye/1913450

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  • 原文地址:https://www.cnblogs.com/yucongblog/p/14177768.html
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