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_passwordport        = 3306socket      = /tmp/mysql.sock# Here follows entries for some specific programs# The MySQL server[mysqld]default-storage-engine=INNODBcharacter-set-server=utf8collation-server=utf8_general_ciport        = 3306socket      = /tmp/mysql.sockskip-external-lockingkey_buffer_size = 16Kmax_allowed_packet = 1Mtable_open_cache = 4sort_buffer_size = 64Kread_buffer_size = 256Kread_rnd_buffer_size = 256Knet_buffer_length = 2Kthread_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-networkingserver-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]quickmax_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 = 8Msort_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！