Nginx反向代理

实现效果实例1

1、打开浏览器，在浏览器地址栏中输入地址www.123.com，跳转到linux的tomcat主页面。

准备工作

（1）安装Nginx在linux服务器

（2）安装Tomcat，使用默认端口8080

1、安装Tomcat

安装Java-1.8.0-jdk

[root@nginx ~]# yum install -y java
[root@nginx ~]# java -version
openjdk version "1.8.0_322"
OpenJDK Runtime Environment (build 1.8.0_322-b06)
OpenJDK 64-Bit Server VM (build 25.322-b06, mixed mode)

安装tomcat

[root@nginx ~]# tar zxvf apache-tomcat-8.5.75.tar.gz 
[root@nginx ~]# cd apache-tomcat-8.5.75/
[root@nginx apache-tomcat-8.5.75]# cd bin/
[root@nginx bin]# ./startup.sh
Using CATALINA_BASE:   /root/apache-tomcat-8.5.75
Using CATALINA_HOME:   /root/apache-tomcat-8.5.75
Using CATALINA_TMPDIR: /root/apache-tomcat-8.5.75/temp
Using JRE_HOME:        /usr
Using CLASSPATH:       /root/apache-tomcat-8.5.75/bin/bootstrap.jar:/root/apache-tomcat-8.5.75/bin/tomcat-juli.jar
Using CATALINA_OPTS:
Tomcat started.

2、关闭防火墙

[root@nginx bin]# firewall-cmd --list-alnot running
[root@nginx bin]# firewall-cmd --add-service=http --permanent
[root@nginx bin]# firewall-cmd --add-port=80/tcp --permanent
[root@nginx bin]# firewall-cmd --add-port=8080/tcp --permanent
[root@nginx bin]# firewall-cmd --reload

3、修改Nginx配置文件

[root@nginx ~]# vim  /usr/local/nginx/conf/nginx.conf

server {
        listen       80;
        server_name  192.168.0.135;    # localhost配置IP地址

        #charset koi8-r;

        #access_log  logs/host.access.log  main;

        location / {
            root   html;
            proxy_pass http://127.0.0.1:8080;  # 添加反向代理地址
            index  index.html index.htm;
        }

[root@nginx ~]# /usr/local/nginx/sbin/nginx -s reload

在本机配置hosts映射，然后浏览器访问

实现效果实例2

使用nginx反向代理，根据访问的路径跳转到不同的端口服务中，nginx监听端口为9001

访问http://127.0.0.1:9001/edu/ 直接跳转到127.0.0.1:8080

访问http://127.0.0.1:9001/vod/ 直接跳转到127.0.0.1:8082

准备工作

准备两台tomcat服务器，一台8080，一台8081

在两台tomcat里面webapps目录中，创建名称是edu的文件夹，在edu文件夹中创建页面a.html,用于测试

1、准备两个tomcat服务器

[root@nginx ~]# cd /usr/src/
[root@nginx src]# mkdir tomcat8080
[root@nginx src]# mkdir tomcat8081
[root@nginx src]# cp /root/apache-tomcat-8.5.75.tar.gz tomcat8080/
[root@nginx src]# cp /root/apache-tomcat-8.5.75.tar.gz tomcat8081/

2、启动服务、修改端口

[root@nginx src]# ./tomcat8080/apache-tomcat-8.5.75/bin/startup.sh
Using CATALINA_BASE:   /usr/src/tomcat8080/apache-tomcat-8.5.75
Using CATALINA_HOME:   /usr/src/tomcat8080/apache-tomcat-8.5.75
Using CATALINA_TMPDIR: /usr/src/tomcat8080/apache-tomcat-8.5.75/temp
Using JRE_HOME:        /usr
Using CLASSPATH:       /usr/src/tomcat8080/apache-tomcat-8.5.75/bin/bootstrap.jar:/usr/src/tomcat8080/apache-tomcat-8.5.75/bin/tomcat-juli.jar
Using CATALINA_OPTS:
Tomcat started.



[root@nginx src]# cd tomcat8081/apache-tomcat-8.5.75/
[root@nginx apache-tomcat-8.5.75]# cd conf/
[root@nginx conf]# vim server.xml
<Server port="8015" shutdown="SHUTDOWN">     #8005修改成8015
  <Listener className="org.apache.catalina.startup.VersionLoggerListener" />
  
·
·
·
<Connector port="8081" protocol="HTTP/1.1"      #8080修改成8081 
               connectionTimeout="20000"
               redirectPort="8443" />
·
·
·
<!-- Define an AJP 1.3 Connector on port 8009 -->
    <!--
    <Connector protocol="AJP/1.3"
               address="::1"
               port="8019"					#8009修改成8019
               redirectPort="8443" />
    -->
[root@nginx conf]# cd ..
[root@nginx apache-tomcat-8.5.75]# cd bin/
[root@nginx bin]# ./startup.sh
Using CATALINA_BASE:   /usr/src/tomcat8081/apache-tomcat-8.5.75
Using CATALINA_HOME:   /usr/src/tomcat8081/apache-tomcat-8.5.75
Using CATALINA_TMPDIR: /usr/src/tomcat8081/apache-tomcat-8.5.75/temp
Using JRE_HOME:        /usr
Using CLASSPATH:       /usr/src/tomcat8081/apache-tomcat-8.5.75/bin/bootstrap.jar:/usr/src/tomcat8081/apache-tomcat-8.5.75/bin/tomcat-juli.jar
Using CATALINA_OPTS:
Tomcat started.

3、创建文件夹、测试页面

[root@nginx src]# cd tomcat8080/apache-tomcat-8.5.75/webapps/
[root@nginx webapps]# mkdir edu
[root@nginx webapps]# echo "8080 tomcat" > edu/a.html

[root@nginx src]# cd tomcat8081/apache-tomcat-8.5.75/webapps/
[root@nginx webapps]# mkdir vod
[root@nginx webapps]# echo "8081 tomcat" > vod/a.html

4、配置Nginx配置文件

添加如下的nginx配置

[root@nginx ~]# vim /usr/local/nginx/conf/nginx.conf
server {
        listen       9001;
        server_name  192.168.0.135;


        location ~ /edu/ {
                proxy_pass http://127.0.0.1:8080;
        }
        location ~ /vod/ {
                proxy_pass http://127.0.0.1:8081;
        }
    }

[root@nginx ~]# /usr/local/nginx/sbin/nginx  -s reload