配置文件如下：
#user nobody; worker_processes 1; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; sendfile on; keepalive_timeout 65; upstream tomcats{ server :443; } server { listen 80; server_name localhost; location / { proxy_pass https://tomcats; index index.html index.htm; } error_page 500 502 503 504 /50x.html; location = /50x.html { root html; } } }