NGINX+TOMCAT实现负载均衡，反向代理，亲测可用，性能优化

例子说明：由一个nginx服务器反向代理两个tomcat服务器，随机访问两个tomcat实现负载均衡。

nginx.conf配置

#user  nobody;
#worker_processes  1;
worker_rlimit_nofile 10240;
#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;
#pid        logs/nginx.pid;
events {
    worker_connections 10240;
}
#这里是http请求的配置
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;
    	client_header_buffer_size 4k;
	open_file_cache max=10240 inactive=20s;
	open_file_cache_valid 30s;
	open_file_cache_min_uses 1;
    #gzip  on;
	gzip  on; 
     gzip_http_version 1.1; 
     gzip_vary on; 
     gzip_comp_level 6; 
     gzip_proxied any; 
     gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript application/x-httpd-php image/jpeg image/gif image/png; 
     gzip_buffers 16 8k; 
     gzip_disable "MSIE [1-6]\.";
	fastcgi_connect_timeout 300;
	fastcgi_send_timeout 300;
	fastcgi_read_timeout 300;
	fastcgi_buffer_size 64k;
	fastcgi_buffers 4 64k;
	fastcgi_busy_buffers_size 128k;
	fastcgi_temp_file_write_size 128k;
    upstream tomcats{
    #这里填写要代理的服务器ip地址，因为我是在同一个服务器上，所以写了127.0.0.1，后面跟上对应tomcat服务器的端口
	server 127.0.0.1:8080;
    server 127.0.0.1:8081;
    }
    server {
	listen 80;
 	server_name  这里填写当前服务器的域名;
        location / {
	    root   html;
            index  index.html index.htm;
            #proxy_pass http://tomcats;
	    rewrite ^(.*)$  https://$host$1 permanent;
	    proxy_set_header Host $http_host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_set_header X-Forwarded-Proto $scheme;
        }
        #error_page  404              /404.html;
        # redirect server error pages to the static page /50x.html
        #
        #error_page   500 502 503 504  /50x.html;
        #location = /50x.html {
            #root   html;
        #}
        # proxy the PHP scripts to Apache listening on 127.0.0.1:80
        #
        #location ~ \.php$ {
        #    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;
    #    }
    #}
    #这里是https请求配置
    # HTTPS server
    server {
        listen       443 ssl;
        server_name  www..ycdjmap.com;
        ssl on;
        #密钥文件pem地址路径，当前在nginx服务器文件夹内
        ssl_certificate     a.pem;
         #密钥文件key地址路径，当前在nginx服务器文件夹内
        ssl_certificate_key  a.key;
        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;
        location / {
           	proxy_set_header Host $http_host;
     		proxy_set_header X-Forwarded-Proto https;
    		proxy_redirect off;
     		proxy_connect_timeout        240;
     		proxy_send_timeout           240;
     		proxy_read_timeout           240;
     		proxy_pass     http://tomcats;
 	   }
	}
}

tomcat配置

context.xml文件

    
    WEB-INF/web.xml	
    
    
    
    
    # 这里是连接池
		

server.xml文件

	

	

	

	
	

			
		
	

	
	#设置端口，优化请求