MySQL8安装

---

title: MySQL8安装
date: 2018-04-25 02:12:21
tags:
- MySQL

---

配置文件

首先是下载安装包，我下载的是一个绿色版的，版本是 8.0.11 ，解压之后再配置一下就能用。我的解压目录是：D:\GreenSoft\MySQL

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注意上面标记的那5个文件和 data，解压之后是没有的，都是手动加进去的。data 文件夹是在 my.ini 文件中配置的，也可以是别的名字。最主要的是 my.ini 文件， 这就是mysql默认读取的配置文件，my-default.ini 是配置文件的一个模块， my.ini 文件就是 根据 my-default.ini 修改过来的，所以，我们只需要 my.ini 文件，至于其它几个文件，是我自己图方便的，可以不用。my.ini 文件内容如下：

# Other default tuning values
# MySQL Server Instance Configuration File
# ----------------------------------------------------------------------
# Generated by the MySQL Server Instance Configuration Wizard
#
#
# Installation Instructions
# ----------------------------------------------------------------------
#
# On Linux you can copy this file to /etc/my.cnf to set global options,
# mysql-data-dir/my.cnf to set server-specific options
# (@localstatedir@ for this installation) or to
# ~/.my.cnf to set user-specific options.
#
# On Windows you should keep this file in the installation directory 
# of your server (e.g. C:\Program Files\MySQL\MySQL Server X.Y). To
# make sure the server reads the config file use the startup option 
# "--defaults-file". 
#
# To run run the server from the command line, execute this in a 
# command line shell, e.g.
# mysqld --defaults-file="D:\GreenSoft\MySQL\my.ini"
#
# To install the server as a Windows service manually, execute this in a 
# command line shell, e.g.
# mysqld --install mysql --defaults-file="D:\GreenSoft\MySQL\my.ini"
#
# And then execute this in a command line shell to start the server, e.g.
# net start mysql
#
#
# Guildlines for editing this file
# ----------------------------------------------------------------------
#
# In this file, you can use all long options that the program supports.
# If you want to know the options a program supports, start the program
# with the "--help" option.
#
# More detailed information about the individual options can also be
# found in the manual.
#
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/8.0/en/server-configuration-defaults.html
#
#
# CLIENT SECTION
# ----------------------------------------------------------------------
#
# The following options will be read by MySQL client applications.
# Note that only client applications shipped by MySQL are guaranteed
# to read this section. If you want your own MySQL client program to
# honor these values, you need to specify it as an option during the
# MySQL client library initialization.
#


[client]
no-beep

# pipe
# socket=0.0
port=3306


[mysql]

default-character-set=utf8








[mysqld]

# 这是8.0.4的新特性 caching_sha2_password，在linux上面使用命宁 mysql -uroot -proot 可以链接，但是使用windows下面的navict链接不成功 
default_authentication_plugin = mysql_native_password

# These are commonly set, remove the # and set as required.
character-set-server = utf8
basedir = D:\GreenSoft\MySQL
datadir = D:\GreenSoft\MySQL\data
port = 3306
server_id = 1



# 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

# General and Slow logging.
log-output=FILE
general-log=0
general_log_file="CUPID.log"
slow-query-log=1
slow_query_log_file="CUPID-slow.log"
long_query_time=10

# Binary Logging.
# log-bin

# Error Logging.
log-error="CUPID.err"



# 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 

# 8.0.4版本的时候，用的是这个sql_mode，但在8.0.11版本中会报错，改成下面那个
# sql_mode=STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
sql-mode="STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION"

default-storage-engine=INNODB

innodb_log_file_size = 512M
binlog_format='MIXED'
max_allowed_packet = 1G
# innodb_file_per_table = 1
# innodb_file_format = Barracuda

# 大小写是否敏感，0敏感 Linux下默认为0， Windows下默认值是 1， MacOS下默认值是 2（0敏感）
lower_case_table_names = 1

innodb_strict_mode = 0
max_connections = 500

初始化

在 D:\GreenSoft\MySQL\bin 目录下，执行 以下命令

 mysqld --initialize --user=mysql --console

image.png

注意在上面生成了一个临时密码。初始化之后就会在data目录下生成一些文件，mysql自带了几个数据库，所以初始化动作是一定要执行的。此时的data文件夹内容如下：

image.png

安装服务

可以使用 mysqld 工具添加服务，也可以用 nssm工具 添加服务。

mysqld -install

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然后启动mysql 服务

net start mysql

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net 可以有对应的 start、stop 操错，但是没有 remove 操错，所以如果你想 卸载 mysql 服务，需要执行 mysqld -remove。当然也可以用 nssm 工具，执行 nssm remove mysql。

然后在命令行下登录数据库

mysql -uroot -prhli5-jt;bxW

//或者 mysql -u root -p 然后输入密码，密码就是那个初始化时生成的那个临时密码

image.png

登录之后重置密码

set password = 'root';

image.png

退出的话，输入 exit

image.png

在mysql启动之后，就可以在Navicate下连接数据库了

image.png

在安装mysql服务之后，其实 nssm 就可以用来管理服务了，以下命令是生效的，例如：

image.png

因为在执行 mysqld -install 命令后， 在服务管理界面就已经可以看到 mysql 服务了，所以可以通过 nssm 来操作。