mysql5.7 安装版安装

参考 http://dev.mysql.com/doc/refman/5.7/en/installing.html

下载mysq5.7的安装包 http://dev.mysql.com/downloads/mysql/

解压到某个指定为文件夹，解压完之后在其根目录底下新建一个my.ini(也可以直接复制原来默认的my-default.ini),然后添加内容，注意，里面的中文在实际中要去掉,my.ini是在mysql目录的底下

[mysqld]
#绑定IPv4和3306端口
bind-address=0.0.0.0
port=3306
#设置mysql的安装目录
basedir=E:\mysql
#设置mysql数据库的数据的存放目录
datadir=E:\mysql\data
#允许最大连接数
max_connections=200
#设置字符集为utf
loose-default-character-set=utf8
character-set-server=utf8
[client]
#设置客户端字符集
loose-default-character-set=utf8
[WinMySQLadmin]
Server=E:\mysql\bin\mysqld.exe

在PATH里面添加环境变量，变量内容就是bin的地址 如： E:\mysql\bin

管理员的身份进入命令行模式(在这个C:\Windows\System32目录底下) 运行命令:'''mysqld --initialize''' 运行命令 mysqld -install安装
运行命令mysqld --initialize初始化数据字典
运行命令net start mysql启动服务

注意:安装成功后就要启动服务了，继续在cmd中输入:net start mysql（如图）,服务启动成功！ 此时很多人会出现错误，请看注意： 注意：这个时候经常会出现错误2和错误1067。 如果出现“错误2 系统找不到文件”，检查一下是否修改过配置文件或者是否进入在bin目录下操作，如果配置文件修改正确并且进入了bin文件夹，需要先删除mysql（输入 mysqld -remove）再重新安装（输入 mysqld -install）； 如果出现错误1067，那就是配置文件修改错误，确认一下配置文件是否正确。

运行命令 mysql -u root -p 然后输入临时密码,这个临时密码是在data文件夹下面的.err结尾的文件里面，有个 A temporary password is generated for root@localhost日志

然后更改密码 ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';

mysql卸载方法
停止服务：net start mysql
删除data文件
卸载：mysqld -remove

# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
# *** DO NOT EDIT THIS FILE. It's a template which will be copied to the
# *** default location during install, and will be replaced if you
# *** upgrade to a newer version of MySQL.

[mysqld]

# Remove leading # and set to the amount of RAM for the most important data
# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
# innodb_buffer_pool_size = 128M

# Remove leading # to turn on a very important data integrity option: logging
# changes to the binary log between backups.
# log_bin

# These are commonly set, remove the # and set as required.
# basedir = .....
# datadir = .....
# port = .....
# server_id = .....

# Remove leading # to set options mainly useful for reporting servers.
# The server defaults are faster for transactions and fast SELECTs.
# Adjust sizes as needed, experiment to find the optimal values.
# join_buffer_size = 128M
# sort_buffer_size = 2M
# read_rnd_buffer_size = 2M 

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 

[mysqld]
lower_case_table_names=0
#绑定IPv4和3306端口
bind-address=0.0.0.0
port=3306
#设置mysql的安装目录
basedir=D:\DevelopSoftware\mysql
#设置mysql数据库的数据的存放目录
datadir=D:\DevelopSoftware\mysql\data
#允许最大连接数
max_connections=200
#设置字符集为utf
loose-default-character-set=utf8
character-set-server=utf8
[client]
#设置客户端字符集
loose-default-character-set=utf8
[WinMySQLadmin]
Server=D:\DevelopSoftware\mysql\bin\mysqld.exe
lower_case_table_names=0
#客户端导入导出数据用到
secure_file_priv=D:\DevelopSoftware\mysql