Nginx 反向代理

Posted 2021-12-23 霍先生的虚拟宇宙网络

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最近web服务器因需要增加安全防护开通了web防火墙。但是防火墙支持80,8080（也有跟多端口的，但是它贵啊，它贵啊），没办法，只能修改结构了。

最初的服务架构：1对1 服务。及时增加服务，tomcat也不用重启，因为只用它运行了web前端。

图片来源我的头条号：

第一步：准备nginx 我这里服务器是server2019

下载win nginx 最新版本 nginx-1.20.2 安装到一个可靠目录

进入nginx 的目录html目录下。分别创建zhangsan、lisi 文件夹。每个文件夹下方一个index网页。

index网页内容如下：

注意两个网页不同地方就在请求的域名后跟的路由不同一个是zhangsan、一个是lisi

<!DOCTYPE html>
<html lang="en">
 <head>
  <meta charset="UTF-8">
  <meta name="Generator" content="EditPlus®">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
  <title>Document</title>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
 </head>
 <body>
  ceshi_1
 </body>
<script type="text/javascript">
 let serverUrl=location.origin;
 $("body").append(serverUrl);
 $.get(location.origin+"/lisi/v1/api/led/getAllLedList");
</script>
</html>


<!DOCTYPE html>
<html lang="en">
 <head>
  <meta charset="UTF-8">
  <meta name="Generator" content="EditPlus®">
  <meta name="Author" content="">
  <meta name="Keywords" content="">
  <meta name="Description" content="">
  <title>Document</title>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
 </head>
 <body>
  ceshi_1
 </body>
<script type="text/javascript">
 let serverUrl=location.origin;
 $("body").append(serverUrl);
 $.get(location.origin+"/zhangsan/v1/api/led/getAllLedList");
</script>
</html>

接下来配置nginx

进入nginx conf 目录下找到 nginx.conf文件，编辑

#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events 
    worker_connections  1024;



http 
    include       mime.types;
    default_type  application/octet-stream;

    #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
    #                  '$status $body_bytes_sent "$http_referer" '
    #                  '"$http_user_agent" "$http_x_forwarded_for"';

    #access_log  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

    server 
        listen       8888;
        server_name  localhost;

        #charset koi8-r;

        #access_log  logs/host.access.log  main;
        root html;
        #location / 
         #   root   html/mine_ceshi1;
         #   index  index.html index.htm;
        #
        location ^~/zhangsan/v1/
            index  index.html index.htm;
            proxy_pass	http://127.0.0.1:9001/v1/;
        
        location ^~/lisi/v1/
	add_header 'Access-Control-Allow-Origin' $http_origin;
	add_header 'Access-Control-Allow-Credentials' 'true';
	add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
	add_header 'Access-Control-Allow-Headers' 'DNT,web-token,app-token,Authorization,Accept,Origin,Keep-Alive,User-Agent,X-Mx-ReqToken,X-Data-Type,X-Auth-Token,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range';
	add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
	if ($request_method = 'OPTIONS') 
		add_header 'Access-Control-Max-Age' 1728000;
		add_header 'Content-Type' 'text/plain; charset=utf-8';
		add_header 'Content-Length' 0;
		return 204;
	
            root   html/mine_ceshi2;
            index  index.html index.htm;
            proxy_pass	http://12.7.0.0.1:12002/v1/;
        

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html 
              root   html;
        

        # proxy the php scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \\.php$ 
        #    proxy_pass   http://127.0.0.1;
        #

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \\.php$ 
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\\.ht 
        #    deny  all;
        #
    


    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server 
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

    #    location / 
    #        root   html;
    #        index  index.html index.htm;
    #    
    #


    # HTTPS server
    #
    #server 
    #    listen       443 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / 
    #        root   html;
    #        index  index.html index.htm;
    #    
    #

说明：1. location ^~/zhangsan/v1/ 配置说明张三请求的proxy 端口9001

2. location ^~/lisi/v1/ 配置说明张三请求的proxy 端口12002

至此配置启动完成。

启动nginx 双击ngInx.exe即可

如果需要重新生效配置文件 ngInx -s reload 即可

这个时候分别访问

注意这里为了和现有的80 重复分开我的nginx 用了8888 端口

localhost:8888/zhangsan

localhost:8888/lisi

查看网页数据返回是不是不同了？

哈哈，有兴趣的小伙伴试下吧。有问题留言。

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