mac-os下简单安装和配置mysql

1.mysql for mac 下载地址
http://dev.mysql.com/downloads/mysql/ 2.根据安装指导安装mysql

1)



2)



3)



4)



这里可以修改安装位置，但是建议使用默认安装目录

5）输入电脑开机密码



6）



这个密码非常重要一定要记下来

如果手速太快忘了这个密码

可以在系统“通知”里面找到



6）打开系统偏好设置



7）启动mysql服务



8）打开终端,设置环境变量



在打开的文件中输入 

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。
9）设置新密码



root为设置的新密码，然后你需要输入老密码

10）运行测试



关于修改mysql编码为utf-8(比较重要)

一般web开发里面中文乱码的祸根都是这个问题（曾被坑过）！！！

如果还没有做过任何修改，默认是这样的设置






2) 退出并到系统偏好设置里面关闭mysql服务，找到mysql-default.cnf这个文件，文件默认路径我下面用pwd命令显示了



3）在这个模版的基础上修改配置文件如下my.cnf

# Example MySQL config file for small systems.
#
# This is for a system with little memory (<= 64M) where MySQL is only used
# from time to time and it's important that the mysqld daemon
# doesn't use much resources.
#
# 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]
default-storage-engine=INNODB
character-set-server=utf8
collation-server=utf8_general_ci
port        = 3306
socket      = /tmp/mysql.sock
skip-external-locking
key_buffer_size = 16K
max_allowed_packet = 1M
table_open_cache = 4
sort_buffer_size = 64K
read_buffer_size = 256K
read_rnd_buffer_size = 256K
net_buffer_length = 2K
thread_stack = 128K

# 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
# (using the "enable-named-pipe" option) will render mysqld useless!
#
#skip-networking
server-id   = 1

# Uncomment the following if you want to log updates
#log-bin=mysql-bin

# binary logging format - mixed recommended
#binlog_format=mixed

# Causes updates to non-transactional engines using statement format to be
# written directly to binary log. Before using this option make sure that
# there are no dependencies between transactional and non-transactional
# tables such as in the statement INSERT INTO t_myisam SELECT * FROM
# t_innodb; otherwise, slaves may diverge from the master.
#binlog_direct_non_transactional_updates=TRUE

# 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

[myisamchk]
key_buffer_size = 8M
sort_buffer_size = 8M

[mysqlhotcopy]
interactive-timeout

4)把改好的文件放到/etc/目录下，也可以直接在/etc/目录下用vim新建my.cnf,把上面的配置内容拷贝进去

5)最后，重启mysql

6)测试修改



最最后，大功告成！