centos下nginx+tomcat https反向代理2种实现方法
反向代理（经验证可使用）
在计算机世界里，由于单个服务器的处理客户端（用户）请求能力有一个极限，当用户的接入请求蜂拥而入时，会造成服务器忙不过来的局面，可以使用多个服务器来共同分担成千上万的用户请求，这些服务器提供相同的服务，对于用户来说，根本感觉不到任何差别。
nginx做前端代理分发，tomcat处理请求。nginx反代tomcat实现https有二个方法。
一、nginx配置https，tomcat也配置https
1、nginx配置https
upstream https_tomcat_web {
server 127.0.0.1:8443;
}
server {
listen 443;
server_name www.test.com;
index index.html;
root /var/www/html/test;
ssl on;
ssl_certificate /etc/nginx/go.pem;
ssl_certificate_key /etc/nginx/go.key;
ssl_session_timeout 5m;
ssl_protocols SSLv2 SSLv3 TLSv1.2;
# ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
ssl_prefer_server_ciphers on;
location ~ ^/admin {
proxy_pass https://https_tomcat_web; //是https的
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 100m;
client_body_buffer_size 256k;
proxy_connect_timeout 60;
proxy_send_timeout 30;
proxy_read_timeout 30;
proxy_buffer_size 8k;
proxy_buffers 8 64k;
proxy_busy_buffers_size 64k;
proxy_temp_file_write_size 64k;
}
error_page 404 /404.html;
location = /40x.html {
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}
}
2、tomcat的https配置,配置文件server.xml
<Service name="Catalina">
<Connector port="8001" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443" />
<Connector port="8091"
protocol="AJP/1.3"
redirectPort="8443" />
//添加以下内容
<Connector port="8443"
protocol="HTTP/1.1"
SSLEnabled="true"
scheme="https"
secure="false"
keystoreFile="cert/gotom.pfx"
keystoreType="PKCS12"
keystorePass="214261272770418"
clientAuth="false"
SSLProtocol="TLSv1+TLSv1.1+TLSv1.2" ciphers="TLS_RSA_WITH_AES_128_CBC_SHA,TLS_RSA_WITH_AES_256_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,TLS_RSA_WITH_AES_128_CBC_SHA256,TLS_RSA_WITH_AES_256_CBC_SHA256" />
..................省略....................
Service>
配置好后重新启动nginx，tomcat，就可以https访问了，这也是我现在采用的配置方式 。
二、nginx采用https，tomcat采用http
1、nginx配置https
upstream https_tomcat_web {
server 127.0.0.1:8001;
}
server {
listen 443;
server_name www.test.com;
index index.html;
root /var/www/html/test;
ssl on;
ssl_certificate /etc/nginx/go.pem;
ssl_certificate_key /etc/nginx/go.key;
ssl_session_timeout 5m;
ssl_protocols SSLv2 SSLv3 TLSv1.2;
# ssl_ciphers ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+SSLv2:+EXP;
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
ssl_prefer_server_ciphers on;
location ~ ^/admin {
proxy_pass http://https_tomcat_web; //是http的
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 100m;
client_body_buffer_size 256k;
proxy_connect_timeout 60;
proxy_send_timeout 30;
proxy_read_timeout 30;
proxy_buffer_size 8k;
proxy_buffers 8 64k;
proxy_busy_buffers_size 64k;
proxy_temp_file_write_size 64k;
}
error_page 404 /404.html;
location = /40x.html {
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
}
}
2、tomcat的http配置,配置文件server.xml
<Service name="Catalina">
<Connector port="8001" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="443" /> //在这里重新定向到了443端口
<Connector port="8091"
protocol="AJP/1.3"
redirectPort="443" />
..................省略....................
Service>