#user  nobody;
worker_processes  1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;


events {
    worker_connections  1024;
}


http {
    include       mime.types;
    default_type  application/octet-stream;

    #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  logs/access.log  main;

    sendfile        on;
    #tcp_nopush     on;

    #keepalive_timeout  0;
    keepalive_timeout  65;

    #gzip  on;

    server {
        listen       8888;
        server_name  localhost;

        location /api/ {
            #$http_origin动态获取请求客户端请求的域
            # 这个必须有，否则跨域失败
            add_header 'Access-Control-Allow-Origin' $http_origin;
            # 可选，允许客户端的请求方法
            add_header 'Access-Control-Allow-Methods' '*';
            # 可选，允许客户端提交Cookie
            add_header 'Access-Control-Allow-Credentials' 'true';
            # 可选，允许客户端访问的响应头
            add_header 'Access-Control-Allow-Headers' 'Cache-Control,Content-Language,token,level,Content-Type,Expires,Last-Modified,Pragma,api-format-tag,Authorization';
            # 处理预检请求
            if ($request_method = 'OPTIONS') {
                # 必须有，指定允许跨域的方法，*代表所有
                add_header 'Access-Control-Allow-Origin' '*';
                add_header 'Access-Control-Allow-Methods' '*';
                # 可选，允许客户端访问的响应头
                add_header 'Access-Control-Allow-Headers' 'Cache-Control, Content-Language,token,level,Content-Type,Expires,Last-Modified,Pragma,api-format-tag,Authorization';
                # 预检请求缓存时间
                add_header 'Access-Control-Max-Age' 1728000;
                add_header 'Content-Type' 'text/plain; charset=utf-8';
                add_header 'Content-Length' 0;

                return 204;
            }

            # SpringBoot 应用访问路径
            proxy_pass http://localhost:39201/api/;
            # proxy_pass http://localhost:10080/;

            proxy_set_header Host $host:$server_port;  #这一行就是来解决问题的，将NGINX接收到请求头中的Host和端口继续往下传递
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;

            proxy_connect_timeout 6000;
            proxy_read_timeout 6000;
        }
    }
}