JSP和PHP共存——Apache2反向代理实现

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环境:ubuntu 12.04 + apache2 + tomcat

1.首先在tomcat中配置好jsp站点,映射端口8080
2.启用apache2的反向代理
apache2的配置文件都保存在/etc/apache2/中,启用反向代理既可以用a2enmod实现,也可以用ln手动设置

ln创建链接方式:
ln -s /etc/apache2/mods-available/proxy.load /etc/apache2/mods-enabled/proxy.load

ln -s /etc/apache2/mods-available/proxy.conf /etc/apache2/mods-enabled/proxy.conf
ln -s /etc/apache2/mods-available/proxy_http.load /etc/apache2/mods-enabled/proxy_http.load

a2enmod方式:
a2enmod proxy
a2enmod proxy_http
3.修改proxy.conf
vi /etc/apache2/mods-enabled/proxy.conf
配置为
<Proxy>
Order deny,allow
Allow from all
</Proxy>

4.修改apche2中的站点配置
apache2的站点配置默认保存在/etc/apache2/sites-enabled/文件夹中,默认是default
将站点localhost:80/8080映射到tomcat,文件配置如下:
<VirtualHost *:80>
 ServerAdmin webmaster@localhost
    
    ProxyRequests Off
 <Location /8080>
  ProxyPass http://localhost:8080/
  ProxyPassReverse http://localhost:8080/
 </Location>
    #ProxyPass / http://localhost:8080/
    #ProxyPassReverse / http://localhost:8080/

 DocumentRoot /var/www
 <Directory />
  Options FollowSymLinks
  AllowOverride None
 </Directory>
 <Directory /var/www/>
  Options Indexes FollowSymLinks MultiViews
  AllowOverride None
  Order allow,deny
  allow from all
 </Directory>

 ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
 <Directory "/usr/lib/cgi-bin">
  AllowOverride None
  Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
  Order allow,deny
  Allow from all
 </Directory>

 ErrorLog ${APACHE_LOG_DIR}/error.log

 # Possible values include: debug, info, notice, warn, error, crit,
 # alert, emerg.
 LogLevel warn

 CustomLog ${APACHE_LOG_DIR}/access.log combined

    Alias /doc/ "/usr/share/doc/"
    <Directory "/usr/share/doc/">
        Options Indexes MultiViews FollowSymLinks
        AllowOverride None
        Order deny,allow
        Deny from all
        Allow from 127.0.0.0/255.0.0.0 ::1/128
    </Directory>
    
</VirtualHost>


5.重启apache2,测试
打开http://localhost/ 显示apache页面
打开http://localhost/8080 显示tomcat页面

如果有多个目录要映射,并且映射到不同站点的目录有父子关系的,要注意配置文件的顺序,如:
<Location /8080>
ProxyPass http://localhost:8080/
ProxyPassReverse http://localhost:8080/
</Location>

<Location />
ProxyPass http://website/
ProxyPassReverse http://website/
</Location>


使用Apache2反向代理不仅能让同一端口jsp和php共存,还能实现负载均衡等功能。

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