centos7.9rpm方式安装mysql

一、下载安装包

https://downloads.mysql.com/archives/community/

二、安装依赖

2.1.一般centos7默认安装了mariadb,这里把它卸载。

rpm -qa|grep mariadb

rpm -e --nodeps mariadb-libs-5.5.56-2.el7.x86_64

2.2.安装所需要的依赖

 yum install libaio  perl net-tools

mysql -h110.110.110.110 -P 3306 -u root -p abcd123;（注:u与root之间可以不用加空格，其它也一样）

三、安装mysql

[root@bdc0002 soft]# rpm -ivh mysql-community-common-5.7.33-1.el7.x86_64.rpm
warning: mysql-community-common-5.7.33-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:mysql-community-common-5.7.33-1.e################################# [100%]
[root@bdc0002 soft]# rpm -ivh mysql-community-libs-5.7.33-1.el7.x86_64.rpm
warning: mysql-community-libs-5.7.33-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:mysql-community-libs-5.7.33-1.el7################################# [100%]
[root@bdc0002 soft]# rpm -ivh mysql-community-client-5.7.33-1.el7.x86_64.rpm
warning: mysql-community-client-5.7.33-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:mysql-community-client-5.7.33-1.e################################# [100%]
[root@bdc0002 soft]# rpm -ivh mysql-community-server-5.7.33-1.el7.x86_64.rpm
warning: mysql-community-server-5.7.33-1.el7.x86_64.rpm: Header V3 DSA/SHA1 Signature, key ID 5072e1f5: NOKEY
Preparing... ################################# [100%]
Updating / installing...
1:mysql-community-server-5.7.33-1.e################################# [100%]

启动：service mysqld start

查看：service mysqld status

四、修改密码

4.1查看临时密码

[root@bdc0002 soft]# grep password /var/log/mysqld.log
2021-06-17T09:16:50.335997Z 1 [Note] A temporary password is generated for root@localhost: 0dJZohDig7!9

4.2用临时密码登录mysql,修改密码

[root@bdc0002 soft]# mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 9
Server version: 5.7.33
Copyright (c) 2000, 2021, Oracle and/or its affiliates.
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> set password = password("your_passwd");

4.3允许远程连接数据库

mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'your_passwd' WITH GRANT OPTION;
Query OK, 0 rows affected, 1 warning (0.00 sec)

4.4修改配置文件

[root@bdc0002 ~]# vi /etc/my.cnf

#表名不区分大小写

lower_case_table_names=1

五、远程连接

mysql -h110.110.110.110 -P 3306 -u root -p abcd123;（注:u与root之间可以不用加空格，其它也一样）

连接串方式

jdbc:mysql://8.130.163.35:3306/test?useUnicode=true&characterEncoding=UTF-8&useSSL=false

?useUnicode=true&characterEncoding=UTF-8&useSSL=false