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。