程序中为了不写死url，使用了动态获得的方式：
basePath = request.getScheme()+”://”+request.getServerName()+”:”+request.getServerPort()+path+”/”;

其中： request.getScheme() return http but not https.
之前单独使用apache（https）+resin的方式正常，现在前面增加了一层nginx，发现问题来了，协议部分（Scheme）无法传过去，后台的resin无法获取到正确的值。

尝试了下面的配置，结果还是一无所获。
    proxy_redirect off;
    proxy_set_header HTTPS  on;
    proxy_set_header Host $host;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Url-Scheme $scheme;
    proxy_set_header X-Scheme $scheme;
    proxy_set_header X-Nginx-Scheme $scheme;
    proxy_set_header Scheme $scheme;
    proxy_set_header  X-FORWARDED_PROTO $scheme;
    proxy_set_header  X-FORWARDED_PROTO “https”;
    proxy_set_header X-Forwarded-Scheme “https”;
    proxy_set_header X-Forwarded-Proto $scheme;
    real-scheme-header     X-Forwarded-Proto;

今天下午好好google了一番，所有的帖子几乎翻了个遍，终于有所收获啦，重点是nginx配置完毕后，apache也要配置环境变量哦！
http://www.ruby-forum.com/topic/183450

nginx config:
=============
proxy_set_header X-Nginx-Scheme $scheme;
# nginx variable $scheme will be ‘http’ or ‘https’.

apache config:
==============
SetEnvIf X-Nginx-Scheme “^https$” HTTPS=on
# Apache environment variable HTTPS will be ‘on’ or not defined.

测试代码如下：
<%
out.println(“Protocol: ” + request.getProtocol() + “<br>”);
out.println(“Scheme: ” + request.getScheme() + “<br>”);
out.println(“Server Name: ” + request.getServerName() + “<br>” );
out.println(“Server Port: ” + request.getServerPort() + “<br>”);
%>

页面打印结果为，正常了！
Protocol: HTTP/1.0
Scheme: https
Server Name: 2hei.net
Server Port: 443

本文固定链接: https://www.2hei.net/2010/02/21/request_getscheme_cannt_get_https/ | 2hei.net