mysql数据库无法存入表情的解决方法

mysql数据库无法存入表情的解决方法

mysql数据库的默认字符集utf8,只能存储3个字节的数据,标准的emoji表情是4个字节,所以要使用utf8mb4兼容四个字节

可以直接修改数据库的字符集,先查看

show variable like '%character%;

如果是utf8可以直接修改为utfmb4

set character_set_client = utf8bm4;
set character_set_server = utf8bm4;
set character_set_connection = utf8bm4;
set character_set_database = utf8bm4;
set character_set_results = utf8bm4;
set collation_connection = utf8bm4_general_ci;
set collation_database = utf8bm4_general_ci;
set collation_server = utf8bm4_general_ci;

修改库的字符集

alter database 库名 character set utf8mb4 collate utf8mb4_general_ci

修改表的字符集

alter table 表名 character set utf8mb4 collate utf8mb4_general_ci