Nginx简介
Nginx (engine x) 是一个高性能的HTTP和反向代理web服务器,同时也提供了IMAP/POP3/SMTP服务。Nginx是由伊戈尔·赛索耶夫为俄罗斯访问量第二的Rambler.ru站点(俄文:Рамблер)开发的,第一个公开版本0.1.0发布于2004年10月4日。
其将源代码以类BSD许可证的形式发布,因它的稳定性、丰富的功能集、示例配置文件和低系统资源的消耗而闻名。2011年6月1日,nginx 1.0.4发布。
Nginx是一款轻量级的Web 服务器/反向代理服务器及电子邮件(IMAP/POP3)代理服务器,在BSD-like 协议下发行。其特点是占有内存少,并发能力强,事实上nginx的并发能力确实在同类型的网页服务器中表现较好,中国大陆使用nginx网站用户有:百度、京东、新浪、网易、腾讯、淘宝等。
Nginx反向代理设置
配置文件nginx.conf:
#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;
#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;
upstream tomcatServer{
server localhost:8081 weight=1;
server localhost:8082 weight=2;
}
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
proxy_pass http://tomcatServer;
#proxy_pass http://localhost:8081;
root html;
index index.html index.htm;
}
#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 localhost:80
#
#location ~ \.php$ {
# proxy_pass http://localhost;
#}
# pass the PHP scripts to FastCGI server listening on localhost:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass localhost: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;
# }
#}
}
其中的一段配置:
upstream tomcatServer{
server localhost:8081 weight=1;
server localhost:8082 weight=2;
}
"tomcatServer"这个命名不能有"_",比如设置成"tomcat_Server",就会进坑,无论怎么整,都无法实现代理,而且查看错误日志也没有任何提示。
成功后能够正常代理负载:
试验环境
nginx1.16.1 windows版;apache-tomcat-7.0.99
最后
本人也是初次接触nginx,小白一枚。看了网上很多例子,都无法解决自己的问题。(悲催的刚开始就入了坑)。试了N遍,无意中修改了一下那个变量,一下子就好了。很让人无语...