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2.5. Example

2.5.1. Nginx + Tomcat

例 2.4. Nginx + Tomcat

server {
    listen       80;
    server_name  www.example.com;

    charset utf-8;
    access_log  /var/log/nginx/www.example.com.access.log;

    location / {
	    proxy_pass http://127.0.0.1:8080;
        proxy_set_header    Host    $host;
        proxy_set_header    X-Real-IP   $remote_addr;
        proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    #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   /usr/share/nginx/html;
    }

    location ~ ^/WEB-INF/ {
        deny  all;
    }
	
    location ~ \.(html|js|css|jpg|png|gif|swf)$ {
        root /www/example.com/www.example.com;
        expires 1d;
    } 
    location ~ \.(ico|fla|flv|mp3|mp4|wma|wmv|exe)$ {
        root /www/example.com/www.example.com;
        expires 7d;
    }
    location ~ \.flv {
        flv;
    }

    location ~ \.mp4$ {
        mp4;
    }

}
			

2.5.2. 攔截index.html

背景:網站推廣審核需要隱藏或不現實首頁,其他頁面正常

需求:要求訪問首頁事顯示指定頁面

server {
    listen       80;
    server_name any.netkiller.cn;

    charset utf-8;
    access_log  /var/log/nginx/any.netkiller.cn.access.log;
    error_log  /var/log/nginx/any.netkiller.cn.error.log;

    location /index.html {
		ssi on;
		proxy_set_header Accept-Encoding "";
        proxy_pass http://172.16.0.1/www/temp.html;
        proxy_set_header Host www.netkiller.cn;

    }

    location / {
		ssi on;
		rewrite ^/$ /zt/your.html; 
		
		proxy_set_header Accept-Encoding "";
		proxy_pass http://127.0.0.1:8080;
        proxy_set_header    Host    $host;
        proxy_set_header    X-Real-IP   $remote_addr;
        proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;
    }

    error_page  404              /error/404.html;
    error_page  403              /error/403.html;
    error_page  502              /error/502.html;
    error_page  500 502 503 504  /error/500.html;

    location ~ ^/WEB-INF/ {
        deny  all;
    }
	
    location ~ \.(html|js|css|jpg|png|gif|swf)$ {
        root /www/netkiller.cn/www.netkiller.cn;
        expires 1d;
    } 
    location ~ \.(ico|fla|flv|mp3|mp4|wma|wmv|exe)$ {
        root /www/netkiller.cn/www.netkiller.cn;
        flv;
        mp4;
        expires 7d;
    }
    location /zt {
		root /www/netkiller.cn/www.netkiller.cn;
		rewrite ^(.*)\;jsessionid=(.*)$ $1 break;
		expires 1d;
    }
    location ^~ /zt/other/ {
		ssi on;
        proxy_set_header Accept-Encoding "";
        proxy_pass http://172.16.0.1/www/;
        proxy_set_header Host www.netkiller.cn;
		proxy_cache www;
		proxy_cache_valid  200 302  1m;
    }

    location /module {
        root /www/netkiller.cn/www.netkiller.cn;
    }
}
		

2.5.3. Session 的 Cookie 域處理

環境

		
User -> Http2 CDN -> Http2 Nginx -> proxy_pass 1.1 -> Tomcat 
		
		

背景,預設情況下 tomcat 不會主動推送 Cookie 域,例如下面的HTTP頭

		
Set-Cookie: JSESSIONID=8542E9F58C71937B3ABC97F002CE039F;path=/;HttpOnly		
		
		

這樣帶來一個問題,在瀏覽器中預設Cookie域等於 HTTP_HOST 頭(www.example.com),如果網站只有一個域名沒有問題,如果想共享Cookie給子域名下所有域名 *.example.com 無法顯示。

通過配置Tomcat sessionCookieDomain="example.com" 可以實現推送 Cookie 域

		
<Context path="" docBase="/www/netkiller.cn/www.netkiller.cn"  reloadable="false" sessionCookieName="PHPSESSID" sessionCookieDomain="netkiller.cn" sessionCookiePath="/" />
		
		

這樣的配置一般用戶的需求都可以滿足。我的需求中還有一項,在伺服器綁定多個域名(二級域名)。問題來了 Tomcat 將始終推送 netkiller.cn 這個域。其他域名無法正確設置Cookie

		
$ curl -s -I -H https://www.netkiller.cn/index.jsp | grep Set-Cookie
Set-Cookie: PHPSESSID=4DBAF36AA7B79CE1ACBA8DD67702B945;domain=netkiller.cn;path=/;HttpOnly

$ curl -s -I -H 'Host: www.test.com' https://www.test.com/index.jsp | grep Set-Cookie
Set-Cookie: PHPSESSID=4DBAF36AA7B79CE1ACBA8DD67702B945;domain=netkiller.cn;path=/;HttpOnly

$ curl -s -I -H 'Host: www.example.com' https://www.example.com/index.jsp | grep Set-Cookie
Set-Cookie: PHPSESSID=4DBAF36AA7B79CE1ACBA8DD67702B945;domain=netkiller.cn;path=/;HttpOnly
		
		

怎樣處理需求呢,我兩個兩個方案,一個方案是在Nginx中配置,另一個方案是在代碼中解決。其中Nginx處理起來比較靈活無需開發測試介入,最終選擇nginx方案

		
server {
	listen       443 ssl http2 default_server;
	server_name _;
    location ~ \.(do|jsp|action)$ {

        ssi on;
	    proxy_set_header Accept-Encoding "";
	    proxy_pass http://127.0.0.1:8080;
        proxy_set_header    Host    $host;
        proxy_set_header    X-Real-IP   $remote_addr;
        proxy_set_header    X-Forwarded-For $proxy_add_x_forwarded_for;

        set $domain $host;
	    if ($host ~* ^([^\.]+)\.([^\.]+)\.([^\.]+)$) {
	        set $domain $2.$3;
	    }
	    proxy_cookie_domain netkiller.cn $domain;
    }
}
		
		

server_name _; 接受任何域名綁定,default_server 將vhost 設置為預設主機。最終測試結果:

		
$ curl -s -I -H https://www.netkiller.cn/index.jsp | grep Set-Cookie
Set-Cookie: PHPSESSID=4DBAF36AA7B79CE1ACBA8DD67702B945;domain=netkiller.cn;path=/;HttpOnly

$ curl -s -I -H https://www.example.com/index.jsp | grep Set-Cookie
Set-Cookie: PHPSESSID=4DBAF36AA7B79CE1ACBA8DD67702B945;domain=example.com;path=/;HttpOnly

$ curl -s -I -H https://www.domain.com/index.jsp | grep Set-Cookie
Set-Cookie: PHPSESSID=4DBAF36AA7B79CE1ACBA8DD67702B945;domain=domain.com;path=/;HttpOnly