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linux-nginx实现tomcat负载均衡给

2022-06-19 20:04:05  阅读：179  来源： 互联网

标签：10.0 tomcat root server nginx linux com lyj


设备

系统            IP                       主机名             软件               服务

centos7     10.0.0.17      web1.lyj.com    JDK8、tomcat      tomcat1

centos7     10.0.0.37      web2.lyj.com    JDK8、tomcat     tomcat2

centos7     10.0.0.27      proxy.lyj.com     nginx                    调度器

centos7      10.0.0.7        客户端

 

负载均衡tomcat主机准备

web1虚拟主机配置

[root@web1 ~]#vim /usr/local/tomcat/conf/server.xml
 <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">

        <!-- SingleSignOn valve, share authentication between web applications
             Documentation at: /docs/config/valve.html -->
        <!--
        <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
        -->

        <!-- Access log processes all example.
             Documentation at: /docs/config/valve.html
             Note: The pattern used is equivalent to using pattern="common" -->
        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log" suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b" />

      </Host>

    </Engine>
    <Engine name="Catalina" defaultHost="web1.lyj.com">  #添加web1 引擎 ，必须添加引擎，才能实现负载均衡调度，否则默认访问localhost引擎，访问tomcat/webapps/ROOT/index.jsp,默认页面

      <Host name="web1.lyj.com"  appBase="/data/webapps" #添加web1 虚拟主机
            unpackWARs="true" autoDeploy="true">
      </Host>

    </Engine>

web2虚拟主机配置

[root@web2 ~]#vim /usr/local/tomcat/conf/server.xml
 <Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">

        <!-- SingleSignOn valve, share authentication between web applications
             Documentation at: /docs/config/valve.html -->
        <!--
        <Valve className="org.apache.catalina.authenticator.SingleSignOn" />
        -->

        <!-- Access log processes all example.
             Documentation at: /docs/config/valve.html
             Note: The pattern used is equivalent to using pattern="common" -->
        <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
               prefix="localhost_access_log" suffix=".txt"
               pattern="%h %l %u %t &quot;%r&quot; %s %b" />

      </Host>
    </Engine>

    <Engine name="Catalina" defaultHost="web2.lyj.com">
      <Host name="web2.lyj.com"  appBase="/data/webapps"
            unpackWARs="true" autoDeploy="true">
      </Host>
    </Engine>

 

准备负载均衡测试用jsp文件

web1和web2节点创建相同的文件

mkdir -pv /data/webapps/ROOT

jsp文件内容

[root@web1 ~]#vim /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>

启动tomcat服务或重启

[root@web2 ~]#systemctl start tomcat   #启动
  或
[root@web2 ~]#systemctl restart tomcat #重启

 

nginx实现后端tomcat的负载均衡调度

子配置文件 tomcat 专用  tomcat.conf

[root@proxy ~]#vim /usr/local/nginx/conf/conf.d/tomcat.conf 
upstream tomcat-server {
        server web1.lyj.com:8080;
        server web2.lyj.com:8080;
}
server {
        listen       80;
        server_name proxy.lyj.com;
        root    /usr/local/nginx/html;

        location ~* \.(jsp|do)$ {
           proxy_pass http://tomcat-server;
       }

}

域名解析，用hosts文件做域名解析

nginx服务器

[root@proxy ~]#vim /etc/hosts   #添加以下内容

10.0.0.17   web1.lyj.com
10.0.0.37   web2.lyj.com

客户端

[root@centos7-liyj ~]#vim /etc/hosts

10.0.0.27  prxoy.lyj.com

页面测试

[root@centos7-liyj ~]#curl http://proxy.lyj.com/index.jsp

<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <title>web2 tomcat test</title>
</head>
<body>
<div>On tomcat-server</div>
<div>10.0.0.37:8080</div>
<div>SessionID = <span style="color:blue">6E153FEB589D130E91A66B340FCC4EB4</span></div>
Sun Jun 19 19:04:17 CST 2022
</body>
</html>
[root@centos7-liyj ~]#curl http://proxy.lyj.com/index.jsp

<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <title>web1 tomcat test</title>
</head>
<body>
<div>On tomcat-server</div>
<div>10.0.0.17:8080</div>
<div>SessionID = <span style="color:blue">6FFF0F78783A4C0EC6C4D3CD8C09A38C</span></div>
Sun Jun 19 19:04:20 CST 2022
</body>
</html>
[root@centos7-liyj ~]#curl http://proxy.lyj.com/index.jsp

<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <title>web2 tomcat test</title>
</head>
<body>
<div>On tomcat-server</div>
<div>10.0.0.37:8080</div>
<div>SessionID = <span style="color:blue">6EDBE50ACF1E8FA28310148B1A4DA4EA</span></div>
Sun Jun 19 19:04:30 CST 2022
</body>
</html>
[root@centos7-liyj ~]#curl http://proxy.lyj.com/index.jsp

<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <title>web1 tomcat test</title>
</head>
<body>
<div>On tomcat-server</div>
<div>10.0.0.17:8080</div>
<div>SessionID = <span style="color:blue">62C1B0BCAFE584F590DBC38DBD32FAAA</span></div>
Sun Jun 19 19:04:34 CST 2022
</body>
</html>

 

实现session 黏性

在upstream中使用ip_hash指令，使用客户端i地址hash。

upstream tomcat-server {
        ip_hash;                         #添加IP地址hash算法
       
        server web1.lyj.com:8080;
        server web2.lyj.com:8080;
}
server {
        listen       80;
        server_name proxy.lyj.com;
        root    /usr/local/nginx/html;

        location ~* \.(jsp|do)$ {
           proxy_pass http://tomcat-server;
       }

}

10.0.0.7 客户端  测试

[root@centos7-liyj ~]#curl http://proxy.lyj.com/index.jsp

<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <title>web2 tomcat test</title>
</head>
<body>
<div>On tomcat-server</div>
<div>10.0.0.37:8080</div>
<div>SessionID = <span style="color:blue">FDB1EF9B00A712483A6BFDA7C59CC99D</span></div>
Sun Jun 19 19:22:16 CST 2022
</body>
</html>
[root@centos7-liyj ~]#curl http://proxy.lyj.com/index.jsp

<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <title>web2 tomcat test</title>
</head>
<body>
<div>On tomcat-server</div>
<div>10.0.0.37:8080</div>
<div>SessionID = <span style="color:blue">DD60C243CF148A059CC8EE770A446088</span></div>
Sun Jun 19 19:22:18 CST 2022
</body>
</html>
[root@centos7-liyj ~]#curl http://proxy.lyj.com/index.jsp

<!DOCTYPE html>
<html lang="en">
<head>
   <meta charset="UTF-8">
   <title>web2 tomcat test</title>
</head>
<body>
<div>On tomcat-server</div>
<div>10.0.0.37:8080</div>
<div>SessionID = <span style="color:blue">CCCE7493697E7A70D8AD8CF5D38D1822</span></div>
Sun Jun 19 19:22:20 CST 2022
</body>
</html>

标签：10.0,tomcat,root,server,nginx,linux,com,lyj
来源： https://www.cnblogs.com/lyj1023/p/16391184.html

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