mac终端下修改MySQL的编码格式

petrel919

　　首先请确认正确安装好MySQL.
　　1- 先配置环境变量path
　　1.1 打开终端,输入： cd ~
　　会进入~文件夹,
　　1.2 然后输入：touch .bash_profile
　　回车执行后,
　　1.3 再输入：open -e .bash_profile
　　会在TextEdit中打开这个文件(如果以前没有配置过环境变量,那么这应该是一个空白文档).
　　如果有内容,请在结束符前输入,如果没有内容,请直接输入如下语句:
　　export PATH=${PATH}:/usr/local/mysql/bin
　　然后,保存,退出TextEdit(一定是退出),关闭终端并退出.
　　此时应该可以直接用以下语句登入MySQL了
　　>mysql -uroot -p
　　1.4 关闭MySQL  !!!!(在系统偏好设置里面关闭MySQL)
　　2- 重点来了!!!
　　2.1 查看一下support-files文件夹(Finder下"前往文件夹";路径:/usr/local/mysql/support-files)
　　里面有没有my-default.cnf或my.cnf文件...如果有则直接打开添加
　　　　　　在[client] 在下面添加　　　　　　default-character-set=utf8 默认字符集为utf8　　在[mysqld] 添加
　　default-character-set=utf8 默认字符集为utf8
　　init_connect='SET NAMES utf8' （设定连接mysql数据库时使用utf8编码，以让mysql数据库为utf8运行）
　　　　　　修改好后，重新启动mysql查看当前数据编码格式。 >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/ |
　　+--------------------------+----------------------------+
　　若终端出现如上样式则OK了,否则继续往下看:
　　2.2 support-files文件夹里面没有my-default.cnf或my.cnf文件,那么就要在/etc下新建my.cnf
　　$ cd /etc
　　$ sudo vim my.cnf
　　2.3 进行完上步操作后会进入vim模式,此时复制(***文本)的内容粘贴进去,,(不包含   ***文本 );
　　2.4 粘贴成功后注意看vim的第一行"#"有没有丢掉(本人就丢过~~哈哈~),都OK的话点esc退出编辑,
　　:wq!     --保存后强制退出.[附几个编辑命令:dd   删除光标所在行; dw   删除一个字(word); x   删除当前字符].
　　(***文本):
　　# 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>　　# 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>　　# (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>　　#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