下载MySQL安装包（解压版）并解压至安装目录
- 最新版MySQL：http://dev.mysql.com/downloads/mysql/
- 选择一个MySQL的安装目录(D：\MySQL)
- 将下载之后的安装包解压至该目录（D:\MySQL\mysql-5.5.45-winx64）
为MySQL建立环境变量
环境变量名为JAVA_HOME,将其指向MySQL的安装目录（不是bin目录）
注意：
最好将环境变量定义在系统环境变量中，而不是用户环境变量里面
为MySQL数据建立配置文件
# 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]
#password = your_password
port = 3306
socket = /tmp/mysql.sock
default-character-set=utf8
# Here follows entries for some specific programs
# The MySQL server
[mysqld]
port = 3306
socket = /tmp/mysql.sock
#Path to installation directory. All paths are usually resolved relative to this.
basedir=D:\MySQL\mysql-5.5.45-winx64
#Path to the database root
datadir=D:\MySQL\mysql-5.5.45-winx64\data
character-set-server=utf8
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
# 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 = C:\\mysql\\data\\
#innodb_data_file_path = ibdata1:10M:autoextend
#innodb_log_group_home_dir = C:\\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 = 20M
sort_buffer_size = 20M
read_buffer = 2M
write_buffer = 2M
[mysqlhotcopy]
interactive-timeout
注意
配置文件中有写字段因版本不同而不同，如在高版本的MySQL中已经不支持[mysqld]default-character-set=utf8而是character-set-server=utf8
这个写错会使MySQL在启动服务的时候报错（ERROR：1067)
出错的具体原因可以在MySQL安装目录中data文件夹下的后缀名为err的日志文件中查找
注意目录中反斜杠的方向，//和\都合法。
安装MySQL服务
以管理员身份运行Windows控制台程序，进入到MySQL的安装目录下的bin目录，执行以下命令： mysqld --install
注意：
*安装MySQL服务的时候需要在进入MySQL安装的解压目录之后，然后执行mysqld --install
来安装服务并注册目录，否则安装时系统会提示找不到指定文件*
当得到服务正常安装的提示之后，可以进行MySQL服务启动的操作： net start mysql
注意：
在启动服务的时候可能因为各种原因导致服务无法正常启动，这个时候可以通过查看日志文件来判断导致服务启动失败的原因。修改好后需要重装MySQL服务，重装之前必须用下面的命令先卸载MySQL服务:mysqld --remove
如果服务启动成功，就可以通过下面的mysql命令进入数据库系统： mysql -u root
此时的root用户默认没有设置密码，需要在系统中进行设置。因为在MySQL中，这些信息同样以表的形式存储在数据库中（即mysql数据库），我们可以通过SQL语句修改这些表，从而修改密码等系统信息：
use mysql;
update user set password=password('your_password') where user='root';
flush privilege;