MySQL是一款常用的開源數據庫軟件，但是對于初次使用者好像并不是太友好，MySQL5.x的版本中默認字符集是latin1也就是我們所知道的ISO-8859-1字符集，這個字符集編碼并沒有包含漢字，所以我們在使用的時候漢字會出現亂碼情況，通過修改數據庫默認字符集即可解決。

進入MySQL命令行：

mysql> show variables like ’%colla%’;+----------------------+-------------------+| Variable_name | Value |+----------------------+-------------------+| collation_connection | gbk_chinese_ci || collation_database | latin1_swedish_ci || collation_server | latin1_swedish_ci |+----------------------+-------------------+3 rows in set, 1 warning (0.00 sec)mysql> show variables like ’%char%’;+--------------------------+---------------------------------------------------------+| Variable_name | Value |+--------------------------+---------------------------------------------------------+| character_set_client | gbk || character_set_connection | gbk || character_set_database | latin1 || character_set_filesystem | binary || character_set_results | gbk || character_set_server | latin1 || character_set_system | utf8 || character_sets_dir | C:Program FilesMySQLMySQL Server 5.7sharecharsets |+--------------------------+---------------------------------------------------------+8 rows in set, 1 warning (0.00 sec)

可以看到現在默認的字符集是latin1

找到MySQL的配置文件，windows中的配置文件是my.ini，我的電腦位于C:ProgramDataMySQLMySQL Server 5.7，Linux中需要修改的是my.conf文件，具體路徑根據你的實際安裝位置，分別修改以下節點中的配置：

我使用的5.7中[client]節點的配置需要新增，其余兩個節點[mysql]、[mysql]需要打開注釋并修改為utf8.

[client]default-character-set=utf8[mysql]default-character-set=utf8[mysql]character_set_server=utf8

然后重啟MySQL

net stop mysqlnet start mysql

再次查看字符集，都已經被修改為utf8字符集

mysql> show variables like ’%colla%’;+----------------------+-----------------+| Variable_name | Value |+----------------------+-----------------+| collation_connection | gbk_chinese_ci || collation_database | utf8_general_ci || collation_server | utf8_general_ci |+----------------------+-----------------+3 rows in set, 1 warning (0.00 sec)mysql> show variables like ’%char%’;+--------------------------+---------------------------------------------------------+| Variable_name | Value |+--------------------------+---------------------------------------------------------+| character_set_client | gbk || character_set_connection | gbk || character_set_database | utf8 || character_set_filesystem | binary || character_set_results | gbk || character_set_server | utf8 || character_set_system | utf8 || character_sets_dir | C:Program FilesMySQLMySQL Server 5.7sharecharsets |+--------------------------+---------------------------------------------------------+8 rows in set, 1 warning (0.00 sec)

為保證編碼一致性還可以在創建數據庫或者表的時候指定字符集，并在連接串后面指定連接參數：

?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai

以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支持好吧啦網。