最近在公司做了一個專案,整體是分為service層和web層兩個專案,中間通過springmvc的http介面呼叫.主要的業務邏輯都是在service層中去處理.而web層負責後臺資料的管理,主要是提供給後臺管理員使用.

專案的架構是兩臺阿里雲的linux伺服器,硬體配置為250G硬碟,8G記憶體,4核cpu;每臺機器上部署一個service服務和一個web服務,一個nginx負載均衡服務.

web服務來說,對外暴露的是LBS的外網地址,web呼叫service是呼叫nginx地址,nginx為service做的負載均衡.會將請求負載到兩臺linux服務上去處理,web請求的是本臺伺服器上的nginx地址.

service服務,對外提供的介面服務都是http介面.用LBS對兩臺伺服器上的nginx服務都做了重新負載分配.這樣做的原因是阿里雲做的LBS不能在內網之間呼叫的限制.service對外暴露的是LBS的內網地址,這樣是考慮到service服務的安全性,主要是提供給公司內部的業務系統使用的.

在web呼叫service的nginx負載服務時,就要對nginx進行配置.下面附上配置圖解:

#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;
}

#標識http協議的一些日誌格式和資料型別
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;

	
	
	#伺服器的叢集 (就是負載的配置資訊,請求來了之後需要nginx分發請求到哪些機器上) 
    upstream  test-service {  #伺服器叢集名字,此處叫做 test-service 
        server    192.168.13.227:9080;#伺服器配置   weight是權重的意思，權重越大，分配的概率越大。
		
        server    192.168.13.80:8080; 
		
    } 
	#nginx伺服器的監聽ip和埠,使用的編碼格式
    server {
        listen       80;
        server_name  192.168.13.80;
		charset utf-8;
        #charset koi8-r;

        #access_log  logs/host.access.log  main;

		#nginx的常用配置
        location / { #location代表攔截的請求路徑/標識全部攔截
            proxy_pass http://test-service;  #固定格式標識負載到哪個upstream上,這裡選擇之前配置的test-service上.即http://test-service=http://+test-service
            proxy_redirect off; 
			
			
			proxy_set_header        Host            $host;
			proxy_set_header        X-Real-IP       $remote_addr;
			proxy_set_header        X-Forwarded-For $proxy_add_x_forwarded_for;
			client_max_body_size    10m;
			client_body_buffer_size 128k;
			proxy_connect_timeout   3;
			proxy_send_timeout      30;
			proxy_read_timeout      30;
			proxy_buffer_size		128k;
			proxy_buffers           4 256k;
			proxy_busy_buffers_size	256k;
			proxy_temp_file_write_size	256k;
			
			
			#root   html;
            #index  index.html index.htm;
        }

        #error_page  404              /404.html;

        # redirect server error pages to the static page /50x.html
        #錯誤頁面的跳轉到哪些html上在nginx目錄當中都是有的
        error_page   500 502 503 504  /50x.html;
        location = /50x.html {
            root   html;
        }

        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    proxy_pass   http://127.0.0.1;
        #}

        # pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
        #
        #location ~ \.php$ {
        #    root           html;
        #    fastcgi_pass   127.0.0.1:9000;
        #    fastcgi_index  index.php;
        #    fastcgi_param  SCRIPT_FILENAME  /scripts$fastcgi_script_name;
        #    include        fastcgi_params;
        #}

        # deny access to .htaccess files, if Apache's document root
        # concurs with nginx's one
        #
        #location ~ /\.ht {
        #    deny  all;
        #}
    }


    # another virtual host using mix of IP-, name-, and port-based configuration
    #
    #server {
    #    listen       8000;
    #    listen       somename:8080;
    #    server_name  somename  alias  another.alias;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}


    # HTTPS server
    #
    #server {
    #    listen       443 ssl;
    #    server_name  localhost;

    #    ssl_certificate      cert.pem;
    #    ssl_certificate_key  cert.key;

    #    ssl_session_cache    shared:SSL:1m;
    #    ssl_session_timeout  5m;

    #    ssl_ciphers  HIGH:!aNULL:!MD5;
    #    ssl_prefer_server_ciphers  on;

    #    location / {
    #        root   html;
    #        index  index.html index.htm;
    #    }
    #}

}