NGINX配置下载apk

1、修改配置文件

server {
        listen       80;
        server_name  app;

        location /app {
            alias /var/www/app;
            autoindex on;
            default_type application/octet-stream;
        }
    }

alias指定虚拟目录 autoindex on;打开目录浏览功能  default_type application/octet-stream;设置相应的MIME类型 当Url路径中包含/app/时，MIME类型会被重置为application/octet-stream

2、重新加载生效 

nginx -t
nginx -s reload