1.Nginx动静分离概念

动静分离，通过中间件将动态请求和静态请求进行分离，分离资源，减少不必要的请求消耗，减少请求延时。

好处：动静分离后，即使动态服务不可用，但静态资源不会受到影响

通过中间件可以将动态请求和静态请求进行分离

2.Nginx动静分离应用案例

2.1.环境规划

2.2.配置静态资源

1.创建动静分离配置文件
[root@localhost ~]# cd /etc/nginx/conf.d/
[root@localhost conf.d]# vim ds.conf
#动静分离
server {
	listen 80;
	server_name ds.com;
	
	location / {
		root /web;
		index index.html;
	}
	
	location ~* .*\.(png|jpg|gif)$ {
		root /web/images;
	}
}

2.重载Nginx
[root@localhost conf.d]# nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
[root@localhost conf.d]# systemctl reload nginx

3.准备图片
[root@localhost conf.d]# mkdir /web/images
[root@localhost conf.d]# wget -O /web/images/nginx.png http://nginx.org/nginx.png

2.3.配置动态资源

1.编译安装tomcat
[root@localhost soft]# tar xf apache-tomcat-7.0.92.tar.gz  -C /application/

2.写入动态文件
[root@localhost soft]# cd /application/
[root@localhost application]# vim apache-tomcat-7.0.92/webapps/ROOT/java_test.jsp
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

    
        
    
    
      <%
        Random rand = new Random();
        out.println("
Random number:
");
        out.println(rand.nextInt(99)+100);
      %>
    


3.启动服务
[root@localhost application]# cd apache-tomcat-7.0.92/
[root@localhost apache-tomcat-7.0.92]# ./bin/startup.sh

2.4.整合动静分离

2.4.1.配置动静分离负载均衡

[root@localhost conf.d]# vim lb_ds.conf
#整合动静分离
upstream static_photo {
        server 172.16.1.20:80;
}

upstream java {
        server 172.16.1.30:8080;
}

server {
        listen 80;
        server_name ds.com;
        access_log /nginx_log/lb_ds_access.log main;

        location / {
                root /web/ds;
                index index.html;
        }

        location ~* .*\.(jpg|png|gif)$ {
                proxy_pass http://static_photo;
                proxy_set_header HOST $http_host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }

        location ~* .jsp$ {
                proxy_pass http://java;
                proxy_set_header HOST $http_host;
                proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }
}

2.4.2.编写整合动静分离代码

[root@localhost conf.d]# vim /web/ds/index.html


        
        
        <script src="http://libs.baidu.com/jquery/2.1.4/jquery.min.js"></script>

<script type="text/javascript">
$(document).ready(function(){
        $.ajax({
        type: "GET",
        url: "http://ds.com/java_test.jsp",
        success: function(data) {
                $("#get_data").html(data)
        },
        error: function() {
                alert("fail!!,请刷新再试");
        }
        });
});
</script>
        
                
测试动静分离
                
上面为静态图片，下面为动态页面
                
                

        

2.5.效果

看着是一个页面实则不同机器在做处理

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