要在nginx中配置https,就必须安装ssl模块,也就是: http_ssl_module

server {
    listen 443; 
    server_name www.imoocdsp.com; # 开启
    ssl ssl on; # 配置ssl证书 ssl_certificate 1_www.imoocdsp.com_bundle.crt; # 配置证书秘钥 ssl_certificate_key 2_www.imoocdsp.com.key; # ssl会话cache ssl_session_cache shared:SSL:1m; # ssl会话超时时间 
    ssl_session_timeout 5m; # 配置加密套件,写法遵循 openssl 标准 ssl_protocols TLSv1 TLSv1.1 TLSv1.2; 
    ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:HIGH:!aNULL:!MD5:!RC4:!DHE;
    ssl_prefer_server_ciphers on;
location / { 
    proxy_pass http://tomcats/;