Nginx+tomcat+redis实现session共享
1，安装nginx，使用yum -y install nginx 这是epel源中的，需要安装epel源。
2，配置nginx。
在nginx配置文件添加upstremserver和proxy，如下：
upstream glq.com {
#ip_hash;
server 192.168.125.200:8080 weight=1;
server 192.168.125.201:8080 weight=2;
}
server {
listen 80;
#listen [::]:80 default_server;
server_name _;
#root /usr/share/nginx/html;
在nginx配置文件添加upstremserver和proxy，如下：
upstream glq.com {
#ip_hash;
server 192.168.125.200:8080 weight=1;
server 192.168.125.201:8080 weight=2;
}
server {
listen 80;
#listen [::]:80 default_server;
server_name _;
#root /usr/share/nginx/html;
# Load configuration files for the default server block.
include /etc/nginx/default.d/*.conf;
include /etc/nginx/default.d/*.conf;
location / {
proxy_pass http://glq.com;
proxy_redirect default;
}
proxy_pass http://glq.com;
proxy_redirect default;
}
error_page 404 /404.html;
location = /40x.html {
}
location = /40x.html {
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}
location = /50x.html {
}
}
3，配置tomcat，两台server分别为：192.168.125.200，192.168.125.201，每台主机要做如下配置：
下载tomcat，并配置相关变量。
https://tomcat.apache.org/download-80.cgi 下载
tar -xf apache-tomcat-xxx.tar.gz -C /usr/local/
ln -sv apache-tomcat-xx tomcat
vim /etc/profile.d/tomcat.sh
export CATALINA_HOME=/usr/local/tomcat
export PATH=$CATALINA_HOME/bin:$PATH
下载tomcat，并配置相关变量。
https://tomcat.apache.org/download-80.cgi 下载
tar -xf apache-tomcat-xxx.tar.gz -C /usr/local/
ln -sv apache-tomcat-xx tomcat
vim /etc/profile.d/tomcat.sh
export CATALINA_HOME=/usr/local/tomcat
export PATH=$CATALINA_HOME/bin:$PATH
4，下载tomcat-redis-session-manager相关组件。
https://raw.githubusercontent.com/cc-chen/tomcat8.5-redis-session-manager/master/lib/jedis-2.5.2.jar
https://raw.githubusercontent.com/cc-chen/tomcat8.5-redis-session-manager/master/output/tomcat8.5-redis-session-manager.jar
https://raw.githubusercontent.com/cc-chen/tomcat8.5-redis-session-manager/master/lib/commons-pool2-2.2.jar
把以上3个jar包mv到tomcat下lib目录下，然后配置context.xml,添加如下：
https://raw.githubusercontent.com/cc-chen/tomcat8.5-redis-session-manager/master/lib/jedis-2.5.2.jar
https://raw.githubusercontent.com/cc-chen/tomcat8.5-redis-session-manager/master/output/tomcat8.5-redis-session-manager.jar
https://raw.githubusercontent.com/cc-chen/tomcat8.5-redis-session-manager/master/lib/commons-pool2-2.2.jar
把以上3个jar包mv到tomcat下lib目录下，然后配置context.xml,添加如下：
<Valve className="com.s.tomcat.redissessions.RedisSessionHandlerValve"/>
<Manager className="com.s.tomcat.redissessions.RedisSessionManager"
host="192.168.125.211"
port="6379"
database="0"
password="123123" //此处密码需要在redis打开密码选项。
maxInactiveInterval="60" />
在webapps下新建testapp，并创建index.jsp:
mkdir -pv testapp/{lib,classes,WEB-INF,META-INF}
创建index.jsp:
<%@ page language="java" %>
<html>
<head><title>TomcatA</title></head>
<body>
<h1><font color="red">TomcatA.izyno.com</font></h1>
<table align="centre" border="1">
<tr>
<td>Session ID</td>
<% session.setAttribute("izyno.com","izyno.com"); %>
<td><%= session.getId() %></td>
</tr>
<tr>
<td>Created on</td>
<td><%= session.getCreationTime() %></td>
</tr>
</table>
</body>
</html>
作为测试页，修改里面TomcatA为B,两台tomcat一样配置。
<Manager className="com.s.tomcat.redissessions.RedisSessionManager"
host="192.168.125.211"
port="6379"
database="0"
password="123123" //此处密码需要在redis打开密码选项。
maxInactiveInterval="60" />
在webapps下新建testapp，并创建index.jsp:
mkdir -pv testapp/{lib,classes,WEB-INF,META-INF}
创建index.jsp:
<%@ page language="java" %>
<html>
<head><title>TomcatA</title></head>
<body>
<h1><font color="red">TomcatA.izyno.com</font></h1>
<table align="centre" border="1">
<tr>
<td>Session ID</td>
<% session.setAttribute("izyno.com","izyno.com"); %>
<td><%= session.getId() %></td>
</tr>
<tr>
<td>Created on</td>
<td><%= session.getCreationTime() %></td>
</tr>
</table>
</body>
</html>
作为测试页，修改里面TomcatA为B,两台tomcat一样配置。
5，配置redis。
yum -y install gcc c++
下载最新的redis解压：tar -xf redis-4.0.8.tar.gz
cd redis-4.0.8
make
make PREFIX=/usr/local/redis install
cp redis.conf /usr/local/redis/
需要修改的配置：
requirepass 123123 //密码
daemonize yes //开启守护进程
bind 0.0.0.0 //设置监听所有IP
然后启动redis：
bin/redis-server /usr/local/redis/redis.conf
查看redis端口：
[root@manager ~]# ss -tunlp
Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port
tcp LISTEN 0 128 *:6379
yum -y install gcc c++
下载最新的redis解压：tar -xf redis-4.0.8.tar.gz
cd redis-4.0.8
make
make PREFIX=/usr/local/redis install
cp redis.conf /usr/local/redis/
需要修改的配置：
requirepass 123123 //密码
daemonize yes //开启守护进程
bind 0.0.0.0 //设置监听所有IP
然后启动redis：
bin/redis-server /usr/local/redis/redis.conf
查看redis端口：
[root@manager ~]# ss -tunlp
Netid State Recv-Q Send-Q Local Address:Port Peer Address:Port
tcp LISTEN 0 128 *:6379
6，测试。