Windows下修改MySql默认字符集

做开发时很多时候会碰到乱码的问题；

有的时候可能是从后台传到数据库时乱码，这时候可能就是数据库默认的字符集编码有问题

默认的字符集为

mysql配置文件为my.ini（在linux下为my.cnf）

[mysqld]


# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M


# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin


# These are commonly set, remove the # and set as required.
# 设置mysql的安装目录
 basedir = D:/soft/mysql-5.6.36-winx64   
# 设置mysql数据库的数据的存放目录，必须是data
 datadir = D:/soft/mysql-5.6.36-winx64/data
 port =3306


# server_id = .....


# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M 


sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 

在doc下进入mysql  

输入show variables like 'character%';查看字符集

结果如下：

+--------------------------+----------------------------+ 
| Variable_name            | Value                      | 
+--------------------------+----------------------------+ 
| character_set_client     | latin1                    | 
| character_set_connection | latin1                      
| character_set_database   | latin1                    |
| character_set_filesystem | binary                     | 
| character_set_results    | latin1                    | 
| character_set_server     | latin1                    | 
| character_set_system     | latin1                    |
| character_sets_dir       | /usr/share/mysql/charsets/ | 
+--------------------------+----------------------------+

解决方案：

修改配置文件

mysql配置文件为my.ini（在linux下为my.cnf）

找到[mysqld] 添加：

character-set-server=utf8

 init_connect='SET NAMES utf8'

然后在最后面添加

[client]
default-character-set=utf8

修改后为：

[mysqld]


# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M


# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin


# These are commonly set, remove the # and set as required.
# 设置mysql的安装目录
 basedir = D:/soft/mysql-5.6.36-winx64   
# 设置mysql数据库的数据的存放目录，必须是data
 datadir = D:/soft/mysql-5.6.36-winx64/data
 port =3306
 character-set-server=utf8
 init_connect='SET NAMES utf8'


# server_id = .....


# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M 


sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 


[client]

default-character-set=utf8

重启mysql服务

然后在查看mysql编码

+--------------------------+----------------------------+ 
| 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/ | 
+--------------------------+----------------------------+

搞定。