檢視mysql資料編碼

登入mysql服務，檢視mysql資料庫預設的編碼

mysql> show variables like 'character%';
+--------------------------+-------------------------------------------------+
| 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       | E:\0Develop\mysql-5.7.15-winx64\share\charsets\ |
+--------------------------+-------------------------------------------------+
 

8 rows in set, 1 warning (0.00 sec)

mysql>

可以看出database和server都採用了latin1編碼，不支援中文，我們需要把它修改為utf-8。

除了這兩個，其它的如下

| 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       | E:\0Develop\mysql-5.7.15-winx64\share\charsets\ 

設定mysql資料庫編碼

在mysql安裝目錄下，將 my-default.ini 複製一分儲存為 my.ini
做如下修改

主要看紅色框裡的內容

[mysqld]
character-set-server=utf8 
collation-server=utf8_general_ci 

[mysql]
default-character-set = utf8

[mysql.server]
default-character-set = utf8


[mysqld_safe]
default-character-set = utf8


[client]
default-character-set = utf8

然後刪除你當前的mysql服務，再重新註冊mysql服務
注：一定要以管理員的許可權執行dos命令，且cd到mysql安裝目錄下的bin目錄，再註冊mysql服務

C:\Windows\system32>sc delete mysql
[SC] DeleteService 成功

C:\Windows\system32>e: cd
E:\>cd E:\0Develop\mysql-5.7.15-winx64\bin

E:\0Develop\mysql-5.7.15-winx64\bin>mysqld --install mysql --defaults-file="E:\0Develop\mysql-5.7.15-winx64\my.ini"
The service already exists!
The current server installed: E:\0Develop\mysql-5.7.15-winx64\bin\mysqld MySQL

E:\0Develop\mysql-5.7.15-winx64\bin>net stop mysql
MySQL 服務正在停止..服務名無效。
請鍵入 NET HELPMSG 2185 以獲得更多的幫助。

E:\0Develop\mysql-5.7.15-winx64\bin>mysqld --install mysql --defaults-file="E:\0Develop\mysql-5.7.15-winx64\my.ini"
Service successfully installed.
E:\0Develop\mysql-5.7.15-winx64\bin>

結果

啟動服務，檢視編碼

C:\Windows\System32>net start mysql
mysql 服務正在啟動 .
mysql 服務已經啟動成功。


C:\Windows\System32>mysql -u root
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.15 MySQL Community Server (GPL)

Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> show variables like 'character%';
+--------------------------+-------------------------------------------------+
| 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       | E:\0Develop\mysql-5.7.15-winx64\share\charsets\ |
+--------------------------+-------------------------------------------------+
8 rows in set, 1 warning (0.00 sec)

mysql>

資料庫例項編碼設定

mysql> show create database test;
+----------+-----------------------------------------------------------------+
| Database | Create Database                                                 |
+----------+-----------------------------------------------------------------+
| test     | CREATE DATABASE `test` /*!40100 DEFAULT CHARACTER SET latin1 */ |
+----------+-----------------------------------------------------------------+
1 row in set (0.00 sec)

mysql> alter database test default character set utf8;
Query OK, 1 row affected (0.00 sec)

mysql> show create database test;
+----------+---------------------------------------------------------------+
| Database | Create Database                                               |
+----------+---------------------------------------------------------------+
| test     | CREATE DATABASE `test` /*!40100 DEFAULT CHARACTER SET utf8 */ |
+----------+---------------------------------------------------------------+
1 row in set (0.00 sec)

mysql>