yum安装mariadb数据库

一、一台主机安装mysql数据库

1、安装软件包

[root@localhost ~]# yum -y install mariadb-server mariadb

2、开启服务

[root@localhost ~]# systemctl start mariadb

3、查看是否有3306端口

[root@localhost ~]# netstat -anpt 
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0      0 0.0.0.0:3306            0.0.0.0:*      

4、登录数据库

[root@localhost ~]# mysql
Welcome to the MariaDB monitor.  Commands end with ; or g.
Your MariaDB connection id is 2
Server version: 5.5.41-MariaDB MariaDB Server

Copyright (c) 2000, 2014, Oracle, MariaDB Corporation Ab and others.

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

MariaDB [(none)]> 

建一个数据库

MariaDB [(none)]> create database slsaledb;
Query OK, 1 row affected (0.00 sec)

给数据库授权

MariaDB [(none)]> grant all on slsaledb.* to admin@'%' identified by '123123';
Query OK, 0 rows affected (0.00 sec)

%：连接可以来源于任何地址

刷新一下授权表

MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.00 sec)

退出

MariaDB [(none)]> exit
Bye
[root@localhost ~]# 

5、向数据库中导入数据

添加一个*.sql的文件

[root@localhost ~]# rz -E
rz waiting to receive.
[root@localhost ~]# ls
anaconda-ks.cfg  nginx-1.16.0.tar.gz  slsaledb-2014-4-10.sql

将文件导入数据库

[root@localhost ~]# mysql -uroot < slsaledb-2014-4-10.sql

二、将安装tomcat的主机连接到数据库

1、修改网页文件下的内容

[root@localhost ~]# ls /web/webapp/
index.jsp  SLSaleSystem
[root@localhost ~]# ls /web/webapp/SLSaleSystem/
logs  META-INF  statics  WEB-INF
[root@localhost ~]# ls /web/webapp/SLSaleSystem/WEB-INF/
classes  lib  pages  web.xml
[root@localhost ~]# ls /web/webapp/SLSaleSystem/WEB-INF/classes/
applicationContext-mybatis.xml  mybatis-config.xml
jdbc.properties                 org
log4j.properties                spring-servlet.xml
[root@localhost ~]# vim /web/webapp/SLSaleSystem/WEB-INF/classes/jdbc.properties

[root@localhost ~]# vim /web/webapp/SLSaleSystem/WEB-INF/classes/jdbc.properties

url=jdbc:mysql://192.168.200.111:3306/slsaledb?useUnicode=true&characterEncoding=UTF-8    //数据库主机的IP

uname=admin   //数据库的用户名
password=123123    //数据库的密码

 测试（用户名admin，密码123456登录）

如果在测试过程中，nginx主机登录的时候总是跳转，登陆不进去，就需要在主配置文件中添加如下：

upstream tomcat_server {
                ip_hash;   //将网页固定到当前页执行
                server 192.168.200.112:8080 weight=1;
                server 192.168.200.113:8080 weight=1;
}

server {
        listen       80;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            root   html;
            index  index.html index.htm;
        proxy_set_header Host $http_host;
        proxy_pass http://tomcat_server;
        }