nginx + tomcat 实现二级域名
小网站成本有限，用二级域名可以大大降低经济和时间人力的成本，二级域名类似于baidu.com 和tieba.baidu.com的关系。
那么java网站目前我知道的实现方法有2种，tomcat直接实现和nginx + tomcat实现
之前用的tomcat方案效果有点小问题，今天重新用nginx + 多个tomcat再实现一次
安装配置nginx
#安装 sudo yum install epel-release sudo yum install nginx #启动 start 也sudo systemctl restart nginx sudo systemctl stop nginx sudo systemctl start nginx #配置 每次配置完需要重启服务 vim /etc/nginx/nginx.conf
原版安装完成以后，配置文件里有这样一段，我是直接注释掉的
server {
listen 80 default_server;
listen [::]:80 default_server;
server_name _;
root /usr/share/nginx/html;
# Load configuration files for the default server block.
include /etc/nginx/default.d/*.conf;
location / {
}
error_page 404 /404.html;
location = /40x.html {
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}
}
然后替换为以下的内容
相当于
www.tczmh.club 会访问第一个tomcat的地址
bz.tczmh.club 会访问第二个tomcat的地址
server {
listen 80;
server_name www.tczmh.club;
location / {
proxy_pass http://localhost:8080;
proxy_set_header Host $host:$server_port;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Scheme $scheme;
proxy_connect_timeout 3;
proxy_read_timeout 3;
proxy_send_timeout 3;
access_log off;
break;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
server {
listen 80;
server_name bz.tczmh.club;
location / {
#root html;
#index index.html index.htm;
proxy_pass http://localhost:8081;
proxy_set_header Host $host:$server_port;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Scheme $scheme;
proxy_connect_timeout 3;
proxy_read_timeout 3;
proxy_send_timeout 3;
access_log off;
break;
}
}
方案2 是单tomcat下多个项目 也可以与方案1混用
server {
listen 80;
server_name www.tczmh.club;
location / {
proxy_pass http://localhost:8080;
proxy_set_header Host $host:$server_port;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Scheme $scheme;
proxy_connect_timeout 3;
proxy_read_timeout 3;
proxy_send_timeout 3;
access_log off;
break;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
server {
listen 80;
server_name bz.tczmh.club;
location / {
#root html;
#index index.html index.htm;
proxy_pass http://localhost:8080/bz/;
proxy_set_header Host $host:$server_port;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Scheme $scheme;
proxy_connect_timeout 3;
proxy_read_timeout 3;
proxy_send_timeout 3;
access_log off;
break;
}
}
也可以是多域名对应单项目
server {
listen 80;
server_name www.tczmh.club;
location / {
proxy_pass http://localhost:8080;
proxy_set_header Host $host:$server_port;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Scheme $scheme;
proxy_connect_timeout 3;
proxy_read_timeout 3;
proxy_send_timeout 3;
access_log off;
break;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
server {
listen 80;
server_name bz.tczmh.club;
location / {
#root html;
#index index.html index.htm;
proxy_pass http://localhost:8080/bz/;
proxy_set_header Host $host:$server_port;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Scheme $scheme;
proxy_connect_timeout 3;
proxy_read_timeout 3;
proxy_send_timeout 3;
access_log off;
break;
}
}
server {
listen 80;
server_name www.jjbz.xyz;
location / {
#root html;
#index index.html index.htm;
proxy_pass http://localhost:8080/bz/;
proxy_set_header Host $host:$server_port;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Scheme $scheme;
proxy_connect_timeout 3;
proxy_read_timeout 3;
proxy_send_timeout 3;
access_log off;
break;
}
}
每次改完配置文件都要执行重启服务命令
sudo systemctl restart nginx
最终实现了单服务器 二级域名的解决方案，
可以访问www.tczmh.club bz.tczmh.club 实现不同项目的效果
还可以继续深入，使用新域名，CNAME方案解析到二级域名。
达到单服务器单项目多域名的效果，节省多服务器的开支。
2018-08-22 更新
增加nginx错误页面以及单位时间内限制请求次数 具体代码如下
# For more information on configuration, see:
# * Official English Documentation: http://nginx.org/en/docs/
# * Official Russian Documentation: http://nginx.org/ru/docs/
user nginx;
worker_processes auto;
error_log /var/log/nginx/error.log;
pid /run/nginx.pid;
# Load dynamic modules. See /usr/share/nginx/README.dynamic.
include /usr/share/nginx/modules/*.conf;
events {
worker_connections 1024;
}
http {
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for"';
limit_req_zone $binary_remote_addr zone=one:32m rate=15r/s;
access_log /var/log/nginx/access.log main;
sendfile on;
tcp_nopush on;
tcp_nodelay on;
keepalive_timeout 65;
types_hash_max_size 2048;
include /etc/nginx/mime.types;
default_type application/octet-stream;
# Load modular configuration files from the /etc/nginx/conf.d directory.
# See http://nginx.org/en/docs/ngx_core_module.html#include
# for more information.
include /etc/nginx/conf.d/*.conf;
# server {
# listen 80 default_server;
# listen [::]:80 default_server;
# server_name _;
# root /usr/share/nginx/html;
#
# # Load configuration files for the default server block.
# include /etc/nginx/default.d/*.conf;
#
# location / {
# }
#
# error_page 404 /404.html;
# location = /40x.html {
# }
#
# error_page 500 502 503 504 /50x.html;
# location = /50x.html {
# }
# }
# Settings for a TLS enabled server.
#
# server {
# listen 443 ssl http2 default_server;
# listen [::]:443 ssl http2 default_server;
# server_name _;
# root /usr/share/nginx/html;
#
# ssl_certificate "/etc/pki/nginx/server.crt";
# ssl_certificate_key "/etc/pki/nginx/private/server.key";
# ssl_session_cache shared:SSL:1m;
# ssl_session_timeout 10m;
# ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;
#
# # Load configuration files for the default server block.
# include /etc/nginx/default.d/*.conf;
#
# location / {
# }
#
# error_page 404 /404.html;
# location = /40x.html {
# }
#
# error_page 500 502 503 504 /50x.html;
# location = /50x.html {
# }
# }
server {
listen 80;
server_name www.tczmh.club;
location / {
proxy_pass http://localhost:8080;
limit_req zone=one burst=5;
proxy_set_header Host $host:$server_port;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Scheme $scheme;
proxy_connect_timeout 3;
proxy_read_timeout 3;
proxy_send_timeout 3;
access_log off;
break;
}
error_page 400 401 402 403 404 405 408 410 412 413 414 415 500 501 502 503 506 = http://cdn.tczmh.club/cat.html;
}
server {
listen 80;
server_name bz.tczmh.club;
location / {
#root html;
#index index.html index.htm;
proxy_pass http://localhost:8080/bz/;
limit_req zone=one burst=5;
proxy_set_header Host $host:$server_port;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Scheme $scheme;
proxy_connect_timeout 3;
proxy_read_timeout 3;
proxy_send_timeout 3;
access_log off;
break;
}
error_page 400 401 402 403 404 405 408 410 412 413 414 415 500 501 502 503 506 = http://cdn.tczmh.club/cat.html;
}
#server {
# listen 80;
# server_name csyd.tczmh.club;
# location / {
# #root html;
# #index index.html index.htm;
# proxy_pass http://localhost:8765;
# proxy_set_header Host $host:$server_port;
# proxy_set_header X-Real-IP $remote_addr;
# proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
# proxy_set_header X-Forwarded-Scheme $scheme;
# proxy_connect_timeout 3;
# proxy_read_timeout 3;
# proxy_send_timeout 3;
# access_log off;
# break;
# }
#}
}
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