Nginx七层代理，四层代理 + Tomcat多实例部署

192.168.88.50                     #pc1               
192.168.88.51                     #pc2

systemctl stop firewalld
setenforce 0                      #前期准备工作

进入pc1 pc2同时安装jdk

tar -xf jdk-8u361-linux-x64.tar.gz
mv jdk1.8.0_361/ /usr/local
cd /usr/local

vim /etc/profile.d/java.sh

export JAVA_HOME=/usr/local/jdk1.8.0_361
export JRE_HOME=$JAVA_HOME/jre
export CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib
export PATH=$JAVA_HOME/bin:$JRE_HOME/bin:$PATH

source /etc/profile.d/java.sh
java -version

进入pc1 pc2安装tomcat

tar -xf apache-tomcat-9.0.16.tar.gz
cd /usr/local/tomcat/bin                        

vim /usr/lib/systemd/system/tomcat.service

[Unit]
Description=tomcat server
Wants=network-online.target
After=network.target
[Service]
Type=forking
ExecStart=/usr/local/tomcat/bin/startup.sh
ExecStop=/usr/local/tomcat/bin/shutdown.sh
Restart=on-failure
[Install]
WantedBy=multi-user.target                   #将tomcat添加至系统服务

systemctl start tomcat
systemctl status tomcat
ss -natp|grep java                           #启动tomcat

PC1配置（192.168.88.50）

安装tomcat多实例

cd /usr/local
mv tomcat tomcat1
mkdir tomcat tomcat2
mv tomcat1 tomcat2 tomcat     
cd /opt
mv apache-tomcat-9.0.16 /usr/local/tomcat/tomcat2    #部署

cd /usr/local/tomcat/tomcat2/apache-tomcat-9.0.16
mv * ..
vim /usr/local/tomcat/tomcat1/bin/startup.sh
##21行添加##
export CATALINA_HOME=/usr/local/tomcat/tomcat1
export CATALINA_BASE=/usr/local/tomcat/tomcat1
export TOMCAT_HOME=/usr/local/tomcat/tomcat1

vim /usr/local/tomcat/tomcat1/bin/shutdown.sh
##21行添加##
export CATALINA_HOME=/usr/local/tomcat/tomcat1
export CATALINA_BASE=/usr/local/tomcat/tomcat1
export TOMCAT_HOME=/usr/local/tomcat/tomcat1

vim /usr/local/tomcat/tomcat2/bin/startup.sh
##21行添加##
export CATALINA_HOME=/usr/local/tomcat/tomcat2
export CATALINA_BASE=/usr/local/tomcat/tomcat2
export TOMCAT_HOME=/usr/local/tomcat/tomcat2

vim /usr/local/tomcat/tomcat2/bin/shutdown.sh

##21行添加##
export CATALINA_HOME=/usr/local/tomcat/tomcat2
export CATALINA_BASE=/usr/local/tomcat/tomcat2
export TOMCAT_HOME=/usr/local/tomcat/tomcat2

tomcat2中修改端口

vim /usr/local/tomcat/tomcat2/conf/server.xml

#22行，修改Server prot，默认为8005 -> 修改为8006
<Server port="8006" shutdown="SHUTDOWN">
 
#69行，修改Connector port，HTTP/1.1  默认为8080 -> 修改为8081
<Connector port="8081" protocol="HTTP/1.1"
 
#116行，修改Connector port AJP/1.3，默认为8009 -> 修改为8010
<Connector port="8010" protocol="AJP/1.3" redirectPort="8443" />

?启动tomcat1 tomcat2

systemctl stop tomcat           #如果刚刚用sysemctl启动了tomcat一定要先关闭在重启，不然会报错

/usr/local/tomcat/tomcat1/bin/startup.sh
/usr/local/tomcat/tomcat2/bin/startup.sh

分别在三个tomcat服务上部署jsp的动态页面

##192.168.88.50##
cd /usr/local/tomcat/tomcat1/webapps
mkdir test
vim test/123.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-    8"%>
<html>
<head>
<title>JSP test page</title>
</head>
<body>
<% out.println("动态页面 1,http://www.test1.com");%>
</body>
</html>

cd /usr/local/tomcat/tomcat2/webapps
mkdir test
vim test/123.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-    8"%>
<html>
<head>
<title>JSP test page</title>
</head>
<body>
<% out.println("动态页面 2,http://www.test2.com");%>
</body>
</html>

##192.168.88.51##
cd /usr/local/tomcat/webapps
mkdir test
vim test/123.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-    8"%>
<html>
<head>
<title>JSP test page</title>
</head>
<body>
<% out.println("动态页面 3,http://www.test3.com");%>
</body>
</html>

?2.nginx的七层代理，实现动静分离

准备两台虚拟机

192.168.88.22                     #nginx1
192.168.88.31                     #nginx2
systemctl stop firewalld
setenforce 0                      #前期准备工作

部署nginx基于协议的反向代理（七层代理）

vim /usr/local/nginx/conf/nginx.conf


upstream tomcat_server{
     server 192.168.88.50:8080 weight=1;
     server 192.168.88.50:8081 weight=1;
     server 192.168.88.51:8080 weight=1;
}

location ~ .*\.jsp$ {
     proxy_pass http://tomcat_server;
     proxy_set_header HOST $host;
     proxy_set_header X-Real-IP $remote_addr;
     proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_    for;
}

location /static {
     root   html;
     index  index.html index.htm;
}

cd /usr/local/nginx/html
mkdir static
vim static/test.html

<html>
<body>
<h1>this is static web01</h1>
</body>
</html>

systemctl restart nginx

nginx1（192.168.88.22）测试

静态

?动态

nginx2（192.168.88.31）测试?

静态

动态?

3.nginx的四层代理，实现负载均衡

实验准备

192.168.88.13       #安装有nginx

nginx -V
--with-stream       #有此模块

修改配置文件

vim /usr/local/nginx/conf/nginx.conf

stream {
   upstream nginx_server {
   server 192.168.88.22:80;
   server 192.168.88.31:80;
}

server {
    listen 9527;
    proxy_pass nginx_server;
}
}

systemctl restart nginx

?实验验证

文章来源:https://blog.csdn.net/Ybaocheng/article/details/135005730
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