Redisson项目：利用 Redis 实现 tomcat集群 Session共享

王秋实 1949

已于 2024-11-15 17:27:02 修改

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文章标签： redis 数据库缓存

于 2024-11-07 13:33:15 首次发布

本文链接：https://blog.youkuaiyun.com/m0_62934345/article/details/143591243

版权

一、主机规划

nginx： 192.168.31.3
tomcat8、JDK8、redis：192.168.31.4  192.168.31.5

cat << EOF >> /etc/hosts
192.168.31.3 www.wang1.com
192.168.31.4 www.tomcat1.com
192.168.31.5 www.tomcat2.com
EOF

二、准备tomcat集群

2.1 负载均衡tomcat主机准备

2.1.1 定制日志：专有域名、json格式访问日志

/usr/local/tomcat/conf/server.xml

      <Host name="www.wang1.com"  appBase="/data/webapps"
            unpackWARs="true" autoDeploy="true">
        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="wang1_access_log" suffix=".txt"               pattern="{&quot;clientip&quot;:&quot;%h&quot;,&quot;ClientUser&quot;:&quot;%l&quot;,&quot;authenticated&quot;:&quot;%u&quot;,&quot;AccessTime&quot;:&quot;%t&quot;,&quot;method&quot;:&quot;%r&quot;,&quot;status&quot;:&quot;%s&quot;,&quot;SendBytes&quot;:&quot;%b&quot;,&quot;Query?string&quot;:&quot;%q&quot;,&quot;partner&quot;:&quot;%{Referer}i&quot;,&quot;AgentVersion&quot;:&quot;%{User-Agent}i&quot;}" />
      </Host>

2.2 准备负载均衡规划测试用的 jsp文件

/data/webapps/ROOT/index.jsp

<%@ page import="java.util.*" %>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>tomcat test</title>
</head>
<body>
<div>On <%=request.getServerName() %></div>
<div><%=request.getLocalAddr() + ":" + request.getLocalPort() %></div>
<div>SessionID = <span style="color:blue"><%=session.getId() %></span></div>
<%=new Date()%>
</body>
</html>

2.3 Nginx 实现后端 Tomcat 的负载均衡调度

cat /apps/nginx/conf/conf.d/pc1.conf

upstream tomcat-server {
#ip_hash; # 先禁用看看轮询，之后开启开黏性,只根据客户端IP的前三位十进制数字
#hash $remote_addr consistent; # 根据客户端IP的全部位
#hash $cookie_JSESSIONID consistent; # 先禁用看看轮询，之后开启开黏性，JSESSIONID可以小写
   server www.tomcat1.com:8080;
   server www.tomcat2.com:8080;
}
server {
   listen 80;
#   listen 443 ssl;
   server_name www.wang1.com;
   root /data/nginx/html/pc;
   location ~* \.jsp$ {
	  proxy_pass http://tomcat-server;
	  proxy_set_header Host $http_host;
	  proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  }
}

三、Redisson项目：利用 Redis 实现 Session共享

https://redisson.org/docs/web-session-management/

3.1 实现方式有两种

在这里插入图片描述

https://redisson.org/docs/configuration/

---
singleServerConfig:
  idleConnectionTimeout: 10000
  connectTimeout: 10000
  timeout: 3000
  retryAttempts: 3
  retryInterval: 1500
  password: null
  subscriptionsPerConnection: 5
  clientName: null
  address: "redis://127.0.0.1:6379"
  subscriptionConnectionMinimumIdleSize: 1
  subscriptionConnectionPoolSize: 50
  connectionMinimumIdleSize: 24
  connectionPoolSize: 64
  database: 0
  dnsMonitoringInterval: 5000
threads: 16
nettyThreads: 32
codec: !<org.redisson.codec.Kryo5Codec> {}
transportMode: "NIO"

```bash
---
sentinelServersConfig:
  idleConnectionTimeout: 10000
  connectTimeout: 10000
  timeout: 3000
  retryAttempts: 3
  retryInterval: 1500
  failedSlaveReconnectionInterval: 3000
  failedSlaveNodeDetector: !<org.redisson.client.FailedConnectionDetector> {}
  password: null
  subscriptionsPerConnection: 5
  clientName: null
  loadBalancer: !<org.redisson.connection.balancer.RoundRobinLoadBalancer> {}
  subscriptionConnectionMinimumIdleSize: 1
  subscriptionConnectionPoolSize: 50
  slaveConnectionMinimumIdleSize: 24
  slaveConnectionPoolSize: 64
  masterConnectionMinimumIdleSize: 24
  masterConnectionPoolSize: 64
  readMode: "SLAVE"
  subscriptionMode: "SLAVE"
  sentinelAddresses:
  - "redis://127.0.0.1:26379"
  - "redis://127.0.0.1:26389"
  masterName: "mymaster"
  database: 0
threads: 16
nettyThreads: 32
codec: !<org.redisson.codec.Kryo5Codec> {}
transportMode: "NIO"

---
masterSlaveServersConfig:
  idleConnectionTimeout: 10000
  connectTimeout: 10000
  timeout: 3000
  retryAttempts: 3
  retryInterval: 1500
  failedSlaveReconnectionInterval: 3000
  failedSlaveNodeDetector: !<org.redisson.client.FailedConnectionDetector> {}
  password: null
  subscriptionsPerConnection: 5
  clientName: null
  loadBalancer: !<org.redisson.connection.balancer.RoundRobinLoadBalancer> {}
  subscriptionConnectionMinimumIdleSize: 1
  subscriptionConnectionPoolSize: 50
  slaveConnectionMinimumIdleSize: 24
  slaveConnectionPoolSize: 64
  masterConnectionMinimumIdleSize: 24
  masterConnectionPoolSize: 64
  readMode: "SLAVE"
  subscriptionMode: "SLAVE"
  slaveAddresses:
  - "redis://127.0.0.1:6381"
  - "redis://127.0.0.1:6380"
  masterAddress: "redis://127.0.0.1:6379"
  database: 0
threads: 16
nettyThreads: 32
codec: !<org.redisson.codec.Kryo5Codec> {}
transportMode: "NIO"

---
proxyServersConfig:
  idleConnectionTimeout: 10000
  connectTimeout: 10000
  timeout: 3000
  retryAttempts: 3
  retryInterval: 1500
  password: null
  subscriptionsPerConnection: 5
  clientName: null
  addresses: "redis://127.0.0.1:6379"
  subscriptionConnectionMinimumIdleSize: 1
  subscriptionConnectionPoolSize: 50
  connectionMinimumIdleSize: 24
  connectionPoolSize: 64
  database: 0
  dnsMonitoringInterval: 5000
  loadBalancer: !<org.redisson.connection.balancer.RoundRobinLoadBalancer> {}
threads: 16
nettyThreads: 32
codec: !<org.redisson.codec.Kryo5Codec> {}
transportMode: "NIO"

---
multiClusterServersConfig:
  idleConnectionTimeout: 10000
  connectTimeout: 10000
  timeout: 3000
  retryAttempts: 3
  retryInterval: 1500
  failedSlaveReconnectionInterval: 3000
  failedSlaveNodeDetector: !<org.redisson.client.FailedConnectionDetector> {}
  password: null
  subscriptionsPerConnection: 5
  clientName: null
  loadBalancer: !<org.redisson.connection.balancer.RoundRobinLoadBalancer> {}
  subscriptionConnectionMinimumIdleSize: 1
  subscriptionConnectionPoolSize: 50
  slaveConnectionMinimumIdleSize: 24
  slaveConnectionPoolSize: 64
  masterConnectionMinimumIdleSize: 24
  masterConnectionPoolSize: 64
  readMode: "SLAVE"
  datastoreMode: "ACTIVE_PASSIVE"
  subscriptionMode: "SLAVE"
  addresses:
  - "redis://cluster1:7004"
  - "redis://cluster2:7001"
  - "redis://cluster3:7000"
  scanInterval: 5000
  pingConnectionInterval: 30000
  keepAlive: false
  tcpNoDelay: true
threads: 16
nettyThreads: 32
codec: !<org.redisson.codec.Kryo5Codec> {}
transportMode: "NIO"

---
multiSentinelServersConfig:
  replicationMode: "ASYNC"
  idleConnectionTimeout: 10000
  connectTimeout: 10000
  timeout: 3000
  retryAttempts: 3
  retryInterval: 1500
  failedSlaveReconnectionInterval: 3000
  failedSlaveNodeDetector: !<org.redisson.client.FailedConnectionDetector> {}
  password: null
  subscriptionsPerConnection: 5
  clientName: null
  loadBalancer: !<org.redisson.connection.balancer.RoundRobinLoadBalancer> {}
  subscriptionConnectionMinimumIdleSize: 1
  subscriptionConnectionPoolSize: 50
  slaveConnectionMinimumIdleSize: 24
  slaveConnectionPoolSize: 64
  masterConnectionMinimumIdleSize: 24
  masterConnectionPoolSize: 64
  readMode: "SLAVE"
  subscriptionMode: "SLAVE"
  sentinelAddresses:
  - "redis://127.0.0.1:26379"
  - "redis://127.0.0.1:26389"
  masterName: "mymaster"
  database: 0
threads: 16
nettyThreads: 32
codec: !<org.redisson.codec.Kryo5Codec> {}
transportMode: "NIO"

3.2 用方式二实现

2台tomcat
/usr/local/tomcat/conf/server.xml

  <GlobalNamingResources>
............
    <Resource name="bean/redisson"
          auth="Container"
              factory="org.redisson.JndiRedissonFactory"
              configPath="${catalina.base}/conf/redisson.yaml"
          closeMethod="shutdown"/>
  </GlobalNamingResources>

2台tomcat
/usr/local/tomcat/conf/context.xml
追加到末尾context前

    <ResourceLink name="bean/redisson"
                  global="bean/redisson"
          type="org.redisson.api.RedissonClient" />

    <Manager className="org.redisson.tomcat.JndiRedissonSessionManager"
         readMode="REDIS"
         jndiName="bean/redisson" />

2台tomcat
/usr/local/tomcat/conf/redisson.yaml

---
singleServerConfig:
  idleConnectionTimeout: 10000
  connectTimeout: 10000
  timeout: 3000
  retryAttempts: 3
  retryInterval: 1500
  password: null
  subscriptionsPerConnection: 5
  clientName: null
  address: "redis://192.168.31.4:6379"
  subscriptionConnectionMinimumIdleSize: 1
  subscriptionConnectionPoolSize: 50
  connectionMinimumIdleSize: 24
  connectionPoolSize: 64
  database: 0
  dnsMonitoringInterval: 5000
threads: 16
nettyThreads: 32
codec: !<org.redisson.codec.Kryo5Codec> {}
transportMode: "NIO"

在这里插入图片描述

ls /usr/local/tomcat/lib/redisson-*
/usr/local/tomcat/lib/redisson-all-3.37.0.jar  /usr/local/tomcat/lib/redisson-tomcat-9-3.37.0.jar

chown -R tomcat. /usr/local/tomcat/conf/*

systemctl restart tomcat

3.3 查看浏览器

http://www.wang1.com/index.jsp

在这里插入图片描述

3.4 查看专有域名定制json格式日志

tail -f  /usr/local/tomcat/logs/wang1_access_log.2024-11-07.txt

在这里插入图片描述