Nginx反向代理https报错The plain HTTP request was sent to HTTPS port解决办法

最近通过Nginx反向代理一个网站,配置https,在浏览器输入:https://xxxx.test.com访问出现了“400 Bad Request The plain HTTP request was sent to HTTPS port”错误,如下图:
Nginx反向代理https报错The plain HTTP request was sent to HTTPS port解决办法_第1张图片
出现这种报错的主要原因是:
因为HTTP请求被发送到HTTPS端口,这种报错多出现在Nginx既处理HTTP请求又处理HTTPS请求的+是多次重定向导致的情况
正常80端口访问应该是:http://xxxx.test.com:80/login
正常开启HTTPS以后443端口访问应该是:https://xxxx.test.com:443/login
但是此时却变成了: http://xxxx.test.com:443/login,即HTTP请求被发送到HTTPS端口。

简单来说就是:当第一次请求试图通过HTTP访问网站xxxx.test.com,这个请求被重定向到HTTPS。于是Nginx预计使用SSL(443端口)交互,但原来的请求(通过端口80接收,即检查到未登录,需要从/跳转到/login)是普通的HTTP请求,于是会产生错误。

解决方法是在原来的配置上面加两个参数:

proxy_set_header X-Forwarded-Proto https; # X-Forwarded-Proto(XFP)报头是用于识别协议HTTP或HTTPS的,即用户客户端实际连接到代理或负载均衡的标准报头。
proxy_redirect http:// https:// # proxy_redirect 该指令用来修改被代理服务器返回的响应头中的Location头域和“refresh”头域,也就是把http协议改成https协议。

添加以后完整的配置如下:

upstream  xxxx.test.com{     
    #1、轮询(默认)每个请求按时间顺序逐一分配到不同的后端服务器,如果后端服务器down掉,能自动剔除。 
    #2、weight 指定轮询几率,weight和访问比率成正比
	#3、ip_hash 每个请求按访问ip的hash结果分配,这样每个访客固定访问一个后端服务器,可以解决session的问题。
	#ip_hash
	server   127.0.0.1:8808 weight=1;   
}
server {
    #keepalive_requests 120; #单连接请求上限次数。
	listen       80;   #监听端口
	#访问域名
	server_name  xxxx.test.com; #监听地址       
	#charset koi8-r;
	#access_log  logs/host.access.log  main;
	client_max_body_size 100m;
    location / {
		 proxy_pass http://xxxx.test.com;
proxy_set_header X-Original-Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host xxxx.test.com:$server_port;
		# proxy_set_header Host $host:$server_port;
		# proxy_set_header X-Real-IP $remote_addr;
		# proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
		# proxy_redirect  off;  
		 proxy_connect_timeout 18000;
		 proxy_send_timeout 18000;
		 proxy_read_timeout 18000;
		 #fastcgi_param HTTPS on; 

	}
  
    add_header X-Cache $upstream_cache_status;
    proxy_cache_key $host$uri$is_args$args;
    if ($scheme = http) {
        return 301 https://$host$uri?$args;
     }
	#error_page  404              /404.html;

	# redirect server error pages to the static page /50x.html
	#
	error_page   500 502 503 504  /50x.html;
	location = /50x.html {
		root   html;
	}

}


	server {
        #https
        listen       443 ssl;
        server_name  xxxx.test.com; #监听地址
        ssl_certificate     /usr/local/nginx/key/8024886_xxxx.test.com.pem;
        ssl_certificate_key  /usr/local/nginx/key/8024886_xxxx.test.com.key;
        #ssl_session_cache    shared:SSL:1m;
        ssl_session_timeout  5m;
        ssl_ciphers  ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
        ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
        ssl_prefer_server_ciphers  on;
        #访问域名
        #charset koi8-r;
        #access_log  logs/host.access.log  main;
        client_max_body_size 20m;
    location / {
        proxy_set_header X-Original-Host $host;
	proxy_set_header X-Real-IP $remote_addr;
	proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
	proxy_set_header Host xxxx.test.com:$server_port;
	proxy_set_header X-Forwarded-Proto https;

                 proxy_pass http://xxxx.test.com;

          proxy_redirect http:// https://;      

        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
                root   html;
        }

}







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