mysql之Row size too large (> 8126)問題解決方案

問題描述：

項目中涉及文本存儲（mysql數據庫中設置為text）,如果要存儲的數據過大，項目中報錯如下：

### Error updating database.  Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Row size too large (> 8126). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
### The error may exist in file [E:\fjt\2020\workspace\SWAP_background_service\target\classes\mybatis\mapper\equipment_manage\HistoryMapping.xml]
### The error may involve com.liansheng.swap.mapper.equipment_manage.HistoryMapper.update-Inline
### The error occurred while setting parameters
### SQL: update swap_variable_history          SET hour01 = ?          WHERE deptid = ?  and variableid = ? and collectorid = ?
### Cause: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Row size too large (> 8126). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.

解決方案：

1.設置mysql全局變量
設置命令：SET GLOBAL innodb_file_format='Barracuda';
檢查命令：show GLOBAL VARIABLES LIKE '%file_format%';
2.設置對應表的屬性（行格式）
alter table 表名 ROW_FORMAT=COMPRESSED

 

參考文章：https://blog.csdn.net/fallcreek/article/details/49495915

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