1. 進入/etc目錄下

cd /etc

2. 開啟my.cnf檔案

vim my.cnf

3. 修改以下部分(Mysql5.6.42預設的配置檔案中可能沒有[client和[mysql]，直接新增即可)

[client]
port = 3306
socket = /var/lib/mysql/mysql.sock
default-character-set=utf8

[mysqld]
character_set_server = utf8
character_set_client = utf8
collation-server = utf8_general_ci

[
 
mysql]
no-auto-rehash
default-character-set=utf8

# 將這段話註釋掉，否則將會報錯
# sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES

4. 檢視字符集

show variables like '%char%';

+--------------------------+----------------------------+
| Variable_name            | Value                      |
+--------------------------+----------------------------+
|
 
 character_set_client     | utf8                       |
| character_set_connection | utf8                       |
| character_set_database   | utf8                       |
| character_set_filesystem | binary                     |
| character_set_results    | utf8                       |
| character_set_server     |
 
 utf8                       |
| character_set_system     | utf8                       |
| character_sets_dir       | /usr/share/mysql/charsets/ |
+--------------------------+----------------------------+
8 rows in set (0.00 sec)