nginx

1，匹配规则,以openresty为例，可以使用echo库

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worker_processes 1;
events {
  worker_connections 1024;
}
http {
  include mime.types;
  default_type application/octet-steam;
  sendfile on;
  keepalive_timeout 65;
  
  server {
    listen 80;
    server_name localhost;
    default_type text/html;
    
    location / {
      echo "hello nginx";
    }
    
    location = /a {
      echo "=/a";
    }
    
    location ^~ /a {
      echo "^~ /a";
    }
    
    location ^~ /a/b {
      echo "^~ /a/b";
    }
    
    location ~ ^/[a-z]{
      echo "~ ^/[a-z]"
    }
    location ~ ^/\w{
      echo "~ ^/\w"
    }
    
  }
}

2，配置反向代理

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worker_processes 1;
events {
  worker_connections 1024;
}
http {
  include mime.types;
  default_type application/octet-steam;
  sendfile on;
  keepalive_timeout 65;
  
  server {
    listen 80;
    server_name localhost;
    default_type text/html;
    
    location / {
      echo "hello world";
    }

    location /a/ {
      proxy_pass http://yourdomain:80/;
    }
  }
}

3，负载均衡配置

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worker_processes 1;
events {
  worker_connections 1024;
}
http {
  include mime.types;
  default_type application/octet-steam;
  sendfile on;
  keepalive_timeout 65;
  
  upstream group1{
    server 192.168.0.12:80 weight=1;
    server 192.168.0.12:81 weight=1;
  }
  server {
    listen 80;
    server_name localhost;
    default_type text/html;
    
    location / {
      echo "hello world";
    }

    location /a/ {
      proxy_pass http://yourdomain:80/;
    }
    
    # 负载均衡
    location /b/ {
      proxy_pass http://group1/;
    }


  }
}