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Mysql5.7 绿色版安装

绿色版下载

下载地址

安装步骤

  • 解压mysql-5.7.18-winx64.zip 到指定文件夹(根据自己情况确定)
  • 进入文件夹mysql-5.7.18-winx64
  • 创建名为 data 的文件夹(若文件夹已存在,则清空文件夹中的文件)

# 进入文件夹
cd mysql-5.7.18-winx64
# 查看目录信息
dir
# 判断有没有data,如果没有,则创建data文件夹
mkdir data
# 如果有,清空data文件夹
del data

启动及配置Mysql

  • 以管理员权限运行cmd,并进入 mysql-5.7.18-winx64/bin目录下

  • 安装Mysql服务: cmd中输入 mysqld.exe –install,安装成功会出现 Service successfully installed 的提示字样

D:\tools\mysql-5.7.18-winx64\bin> mysqld.exe -install
Service successfully installed.

  • 初始化数据库: cmd中输入 mysqld --initialize-insecure --user=mysql --explicit_defaults_for_timestamp (运行务必检测data文件夹中没有文件),这个没有任何返回值

  • 启动mysql: cmd中输入 net start mysql, 启动成功会出现 mysql 服务已经启动成功 的提示字样

D:\tools\mysql-5.7.18-winx64\bin> net start mysql
MySQL 服务正在启动 .
MySQL 服务已经启动成功。
  • 测试mysql : cmd中输入 mysql.exe -uroot -p, 接下来会让你输入密码,没有密码直接回车就行,到这里就证明mysql安装是没有问题的

``` D:\tools\mysql-5.7.18-winx64\bin>mysql.exe -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 3 Server version: 5.7.18 MySQL Community Server (GPL)

Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> ```

  1. 我们需要配置mysql编码为UTF8,在mysql-5.7.18-winx64 目录下创建名为 my.ini 的文件,文件内容如下
[mysqld]
character-set-server=utf8
[mysql]
default-character-set=utf8
  1. 查看mysql修改前编码
mysql> show variables like 'character%';
+--------------------------+----------------------------------------------+
| Variable_name            | Value                                        |
+--------------------------+----------------------------------------------+
| character_set_client     | gbk                                          |
| character_set_connection | gbk                                          |
| character_set_database   | latin1                                       |
| character_set_filesystem | binary                                       |
| character_set_results    | gbk                                          |
| character_set_server     | latin1                                       |
| character_set_system     | utf8                                         |
| character_sets_dir       | D:\tools\mysql-5.7.18-winx64\share\charsets\ |
+--------------------------+----------------------------------------------+
8 rows in set, 1 warning (0.00 sec)
  1. 重启mysql服务
# 进入bin目录
cd bin/
# 重启服务
mysqld.exe restart
  1. 查看mysql修改后编码
mysql> show variables like 'character%';
+--------------------------+----------------------------------------------+
| Variable_name            | Value                                        |
+--------------------------+----------------------------------------------+
| character_set_client     | utf8                                         |
| character_set_connection | utf8                                         |
| character_set_database   | latin1                                       |
| character_set_filesystem | binary                                       |
| character_set_results    | utf8                                         |
| character_set_server     | latin1                                       |
| character_set_system     | utf8                                         |
| character_sets_dir       | D:\tools\mysql-5.7.18-winx64\share\charsets\ |
+--------------------------+----------------------------------------------+
8 rows in set, 1 warning (0.00 sec)
  1. 修改mysql密码
# 进入名为mysql的数据库
use mysql;

# 修改mysql密码为 `123123`
update user set authentication_string=PASSWORD("123123") where user="root";

# 刷新权限
flush privileges;

返回结果

mysql> use;
ERROR:
USE must be followed by a database name
mysql> use mysql;
Database changed
mysql> update user set authentication_string=PASSWORD("123123") where user="root";
Query OK, 1 row affected, 1 warning (0.01 sec)
Rows matched: 1  Changed: 1  Warnings: 1

mysql> flush privileges;
Query OK, 0 rows affected (0.03 sec)
  1. 测试mysql密码
# 退出mysql
quit;

# 进入mysql
mysql.exe -uroot -p123123  // -u 指定登录用户  -p指定该用户密码

返回结果

D:\tools\mysql-5.7.18-winx64\bin>mysql.exe -uroot -p123123
mysql: [Warning] Using a password on the command line interface can be insecure.
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 10
Server version: 5.7.18 MySQL Community Server (GPL)

Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

其他命令

  1. 卸载mysql服务
mysqld.exe –remove
  1. 停止MySQL服务
net stop mysql

  1. 忘记root账户密码

  2. 在my.ini 中[mysqld]下添加一行skip-grant-tables

  3. 重启mysql服务,参考启动及配置mysql下第8点
  4. 在cmd中执行 mysql -uroot -p 进入mysql
  5. 修改root账户密码, 参考启动及配置mysql下第10点

  6. 退出mysql, 将my.ini文件中刚才加入的skip-grant-tables 删掉,保存文件重启mysql服务即可

  7. 修改mysql访问权限,解决只允许localhost访问的问题

  8. 第一种解决方案: 改表法(不建议)

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> use mysql;
Database changed
mysql> update user set host = '%' where user ='root';  // 修改root用户可以以任何地址访问mysql服务
Query OK, 1 row affected (0.00 sec)
Rows matched: 1  Changed: 1  Warnings: 0

mysql> flush privileges; //刷新权限
Query OK, 0 rows affected (0.02 sec)
  • 第二种解决方案:授权法(建议)
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> grant all privileges on *.* to 'root'@'%' identified by '123123'; //赋予root用户以密码为123123查看所有库
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;  // 刷新权限
Query OK, 0 rows affected (0.00 sec)
  • 关闭授权
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> revoke all on *.* from root@'%'; //撤销root用户的授权
Query OK, 0 rows affected (0.00 sec)

mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)