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mac mysql 乱码的解决办法：1、找到并打开 my.cnf 文件；2、添加代码为“character-set-server=utf8 init_connect= SET NAMES utf8…”即可。
本文操作环境：macOS10.15 系统、Mysql5.7.26 版、macbook pro 2020 电脑。
mac 下 MySQL 出现乱码的解决方法
本文说下 mac 下的处理，其实处理方式是一样的，我电脑的 mysql 版本是 5.7.26-log
网上很多帖子都说去 /usr/local/mysql/support-files 目录拷贝 my-default.cnf 到 /etc/my.cnf 然后和 linux 的修改方式就一样了，这里说明下：Mac 版 MySQL 在 5.7.18 之后在 my-default.cnf 就取消了，于是找不到 my-default.cnf 也找不到 my.cnf，my-default.cnf 是之前的版本中才有的文件。
假如不幸你的 mysql 版本恰好是 5.7.18 之后的，那么直接新建即可
cd /etc
sudo vim my.cnf拷贝以下代码到 my.cnf 中
# Example MySQL config file for medium systems.
#
# This is for a system with little memory (32M - 64M) where MySQL plays
# an important part, or systems up to 128M where MySQL is used together with
# other programs (such as a web server)
#
# MySQL programs look for option files in a set of
# locations which depend on the deployment platform.
# You can copy this option file to one of those
# locations. For information about these locations, see:
# http://dev.mysql.com/doc/mysql/en/option-files.html #
# In this file, you can use all long options that a program supports.
# If you want to know which options a program supports, run the program
# with the --help option.
# The following options will be passed to all MySQL clients
[client] default-character-set=utf8
#password = your_password
port = 3306
socket = /tmp/mysql.sock
# Here follows entries for some specific programs
# The MySQL server
[mysqld]
character-set-server=utf8
init_connect= SET NAMES utf8
port = 3306
socket = /tmp/mysql.sock
skip-external-locking
key_buffer_size = 16M
max_allowed_packet = 1M
table_open_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
character-set-server=utf8
init_connect= SET NAMES utf8
# Don t listen on a TCP/IP port at all. This can be a security enhancement,
# if all processes that need to connect to mysqld run on the same host.
# All interaction with mysqld must be made via Unix sockets or named pipes.
# Note that using this option without enabling named pipes on Windows
# (via the enable-named-pipe option) will render mysqld useless!
#
#skip-networking
# Replication Master Server (default)
# binary logging is required for replication
log-bin=mysql-bin
# binary logging format - mixed recommended
binlog_format=mixed
# required unique id between 1 and 2^32 - 1
# defaults to 1 if master-host is not set
# but will not function as a master if omitted
server-id = 1
# Replication Slave (comment out master section to use this)
#
# To configure this host as a replication slave, you can choose between
# two methods :
#
# 1) Use the CHANGE MASTER TO command (fully described in our manual) -
# the syntax is:
#
# CHANGE MASTER TO MASTER_HOST= host , MASTER_PORT= port ,
# MASTER_USER= user , MASTER_PASSWORD= password ;
#
# where you replace host , user , password by quoted strings and
# port by the master s port number (3306 by default). #
# Example:
#
# CHANGE MASTER TO MASTER_HOST= 125.564.12.1 , MASTER_PORT=3306,
# MASTER_USER= joe , MASTER_PASSWORD= secret
#
# OR
#
# 2) Set the variables below. However, in case you choose this method, then
# start replication for the first time (even unsuccessfully, for example
# if you mistyped the password in master-password and the slave fails to
# connect), the slave will create a master.info file, and any later
# change in this file to the variables values below will be ignored and # overridden by the content of the master.info file, unless you shutdown
# the slave server, delete master.info and restart the slaver server.
# For that reason, you may want to leave the lines below untouched
# (commented) and instead use CHANGE MASTER TO (see above)
#
# required unique id between 2 and 2^32 - 1
# (and different from the master)
# defaults to 2 if master-host is set
# but will not function as a slave if omitted
#server-id = 2
#
# The replication master for this slave - required
#master-host = hostname
#
# The username the slave will use for authentication when connecting
# to the master - required
#master-user = username
#
# The password the slave will authenticate with when connecting to
# the master - required
#master-password = password
#
# The port the master is listening on.
# optional - defaults to 3306
#master-port = port
#
# binary logging - not required for slaves, but recommended
#log-bin=mysql-bin
# Uncomment the following if you are using InnoDB tables
#innodb_data_home_dir = /usr/local/mysql/data
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = /usr/local/mysql/data
# You can set .._buffer_pool_size up to 50 - 80 %
# of RAM but beware of setting memory usage too high
#innodb_buffer_pool_size = 16M
#innodb_additional_mem_pool_size = 2M
# Set .._log_file_size to 25 % of buffer pool size
#innodb_log_file_size = 5M
#innodb_log_buffer_size = 8M
#innodb_flush_log_at_trx_commit = 1
#innodb_lock_wait_timeout = 50
[mysqldump]
quick
max_allowed_packet = 16M
[mysql]
no-auto-rehash
# Remove the next comment character if you are not familiar with SQL
#safe-updates default-character-set=utf8
[myisamchk]
key_buffer_size = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout最后一步重启下 mysql 服务即可
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