Nginx+Tomcat7+Mencached负载均衡集群部署

        之前由于项目当中要用到负载均衡集群的问题，看到网上很多都是这样文章，都是DEMO级别的配置，于是自己也搭建了一番，DEMO可以通过，把实际项目部署到里面去就不行了，根本没有涉及用到真正项目场景之中用到解决方案，我真是百思不得其解，自己又针对本身项目看了一下，才发现session和cookie根本没有绑定成功，只好自己动手写了一个tm-session-mem-1.0.0.jar对session和cookie进行管理包。

        本文环境操作系统是windows2008

      1.安装Nginx

Nginx官网：http://nginx.org/

下载最新稳定版本,下载完成之后，进入到cmd 找到下载目录输入nginx.exe,安装成功之后，看看任务管理器是否有nginx，有说明安装成功.

1.1 再ngnix目录找到conf文件夹里面有一个配置文件nginx.conf,我的配置如下:

    #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;upstream 127.0.0.1 {             server 127.0.0.1:8181 weight=1; #这里是配置toncat8181端口             server 127.0.0.1:8282 weight=2; #这里是配置toncat8282端口        }    #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;      #更改默认80端口        server_name  localhost; #配置服务器IP        #charset koi8-r;        #access_log  logs/host.access.log  main;        location / {            root   html;            index  index.html index.htm;            proxy_pass    http://127.0.0.1;    proxy_set_header Host $host:8888;        #还要加这一句,要不然不起作用,更改端口    proxy_set_header X-Real-IP $remote_addr;    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;        }        #error_page  404              /404.html;        # redirect server error pages to the static page /50x.html        #        error_page   500 502 503 504  /50x.html;        location = /50x.html {            root   html;        }        # proxy the PHP scripts to Apache listening on 127.0.0.1:80        #        #location ~ \.php$ {        #    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;    #    server_name  localhost;    #    ssl                  on;    #    ssl_certificate      cert.pem;    #    ssl_certificate_key  cert.key;    #    ssl_session_timeout  5m;    #    ssl_protocols  SSLv2 SSLv3 TLSv1;    #    ssl_ciphers  HIGH:!aNULL:!MD5;    #    ssl_prefer_server_ciphers   on;

       2.免安装TOMCAT7

  Tomcat官网：http://tomcat.apache.org/

   2.1 本次使用Tomcat版本：apache-tomcat-7.0.55.tar.gz，解压成两个，只需要更改端口8181和8282，Tomcat能正常启动不报错。里面不           需要配置Mencached什么,很干净的一个Tomcat.把项目放在webapps下面.

3.自己写了一个session和cookie进行管理包

   这里面用到java_memcached-release_1.5.jar 需要配置一些东西，如下：

  3.1  项目 web.xml 加一个过滤器如下:

      <!-- 添加memcached过滤器 --><filter>  <filter-name>MemcachedSessionFilter</filter-name>      <filter-class>com.strawren.memsession.filter.MemcachedSessionFilter</filter-class>      <init-param>        <param-name>sessionId</param-name>        <param-value>sid</param-value>      </init-param></filter>      <!-- add memcached --><filter-mapping>  <filter-name>MemcachedSessionFilter</filter-name>  <url-pattern>*.html</url-pattern>  <dispatcher>FORWARD</dispatcher><dispatcher>REQUEST</dispatcher></filter-mapping>

          3.2 配置一个 system.properties 添加如下：

   #添加session
      memcached.servers=127.0.0.1:11211
      emcached.poolname=sessionIdSock

4.安装一个memcached服务,首先要启动这个，要不然项目会卡死，进不去。

最后我打包一个 tm-session-mem-1.0.0.jar 只需要把这个jar包导入你项目当中就ok.

下载jar包资源文件URL:http://download.csdn.net/detail/barney_yangbeiyan/8409801