1 配置文件

/etc/nginx/nginx.conf

# For more information on configuration, see:
#   * Official English Documentation: http://nginx.org/en/docs/
#   * Official Russian Documentation: http://nginx.org/ru/docs/

user root;   # 做静态资源服务器 配置用户一定要用 root 用户 否则无访问权限 403 !!!
worker_processes 2;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
# 单个进程的最大连接数
worker_rlimit_nofile 65535;

# Load dynamic modules. See /usr/share/doc/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;

events {
    worker_connections 15000;
    # 默认用 epoll
    use epoll;
}

http {
    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  /var/log/nginx/access.log  main;

    sendfile            on;
    tcp_nopush          on;
    tcp_nodelay         on;
    keepalive_timeout   65;
    types_hash_max_size 4096;

    include             /etc/nginx/mime.types;
    default_type        application/octet-stream;

    # Load modular configuration files from the /etc/nginx/conf.d directory.
    # See http://nginx.org/en/docs/ngx_core_module.html#include
    # for more information.
    include /etc/nginx/conf.d/*.conf;
　　# 可以自己建一个文件夹 include 导入即可
    include /etc/nginx/conf.d/vhost/*.conf;

    server {
        listen       80;
        listen       [::]:80;
        server_name  _;
        root         /usr/share/nginx/html;

        # Load configuration files for the default server block.
        include /etc/nginx/default.d/*.conf;

        error_page 404 /404.html;
        location = /404.html {
        }

        error_page 500 502 503 504 /50x.html;
        location = /50x.html {
        }
    }

# Settings for a TLS enabled server.
#
#    server {
#        listen       443 ssl http2;
#        listen       [::]:443 ssl http2;
#        server_name  _;
#        root         /usr/share/nginx/html;
#
#        ssl_certificate "/etc/pki/nginx/server.crt";
#        ssl_certificate_key "/etc/pki/nginx/private/server.key";
#        ssl_session_cache shared:SSL:1m;
#        ssl_session_timeout  10m;
#        ssl_ciphers HIGH:!aNULL:!MD5;
#        ssl_prefer_server_ciphers on;
#
#        # Load configuration files for the default server block.
#        include /etc/nginx/default.d/*.conf;
#
#        error_page 404 /404.html;
#            location = /40x.html {
#        }
#
#        error_page 500 502 503 504 /50x.html;
#            location = /50x.html {
#        }
#    }

}

/etc/nginx/conf.d/vhost/share.com

server{
　　# 加上 default_server 设置为默认主机
     listen 80 default_server;
     # server_name 127.0.0.1;
     add_header Access-Control-Allow-Origin *;
         add_header Access-Control-Allow-Headers X-Requested-With;
         add_header Access-Control-Allow-Methods GET,POST,OPTIONS;
     #location / {
        #    add_header Content-Disposition: 'attachment;';
     #    root /home/os-zhoutong/test/;
     #    autoindex on;
     #}
     #add_header Content-Disposition "attachment;";
　　　　# location /data 指定路由匹配
     location /data {
　　　　　　# 用 alias 时路径后面必须加 /
         alias /root/test/;
         # 判断文件名后缀，访问直接下载
         if ($request_filename ~*
^.*?\.(txt|doc|pdf|rar|gz|zip|docx|exe|xlsx|ppt|pptx|jpg|jpeg|png)$){
         add_header Content-Disposition "attachment;filename=$1";
         }
         autoindex on;
     }


}

记住：

修改完 nginx conf 需求重启 nginx 

nginx -s reload