Ubuntu14.04下Apache2与Tomcat7配置：域名直接访问Java应用方法

Hey there! Let's get your setup sorted so users can type www.mysite.com and land directly on your Tomcat-hosted application. Below are two proven methods to achieve this using Apache as a reverse proxy:

Method 1: Reverse Proxy with HTTP (mod_proxy_http) #

This is the most straightforward approach, using Apache's proxy modules to forward requests to Tomcat's 8080 port.

• Step 1: Enable required Apache modules
  Open your terminal and run these commands to enable the proxy and HTTP proxy modules:

  sudo a2enmod proxy proxy_http
  sudo service apache2 restart
  

• Step 2: Configure Apache Virtual Host
  Edit your default Apache site configuration (or create a new one if you prefer). The file is usually located at /etc/apache2/sites-available/000-default.conf:

  sudo nano /etc/apache2/sites-available/000-default.conf
  

  Inside the <VirtualHost *:80> block, add these lines (replace Application_name with your actual app's context path):

  # Disable proxy requests to avoid open proxy risks
  ProxyRequests Off
  
  # Forward all requests to your Tomcat app
  ProxyPass / http://localhost:8080/Application_name/
  ProxyPassReverse / http://localhost:8080/Application_name/
  

  Save the file (Ctrl+O, then Enter) and exit nano (Ctrl+X).

• Step 3: Test the setup
  Restart Apache to apply changes:

  sudo service apache2 restart
  

  Now visit www.mysite.com in your browser—it should load your Tomcat application directly!

Method 2: AJP Protocol (mod_proxy_ajp) #

AJP is an optimized protocol for communication between Apache and Tomcat, which can offer better performance than plain HTTP. Tomcat enables AJP on port 8009 by default.

• Step 1: Enable AJP proxy module
  Run these commands to enable the necessary modules:

  sudo a2enmod proxy proxy_ajp
  sudo service apache2 restart
  

• Step 2: Update Virtual Host configuration
  Open the same virtual host file as before (/etc/apache2/sites-available/000-default.conf) and replace the HTTP proxy lines with these:

  ProxyRequests Off
  
  ProxyPass / ajp://localhost:8009/Application_name/
  ProxyPassReverse / ajp://localhost:8009/Application_name/
  

• Step 3: Verify Tomcat's AJP connector (optional)
  If you want to double-check Tomcat's AJP setup, open /etc/tomcat7/server.xml and ensure this line is uncommented (it should be by default):

  <Connector port="8009" protocol="AJP/1.3" redirectPort="8443" />
  

  If you made changes here, restart Tomcat:

  sudo service tomcat7 restart
  

• Step 4: Restart Apache and test

  sudo service apache2 restart
  

  Visit www.mysite.com—you should see your Tomcat app just like with the first method.

Notes to Keep in Mind #

• If your application uses absolute URLs or hardcoded paths, you might need to adjust its configuration to use the root path (/) instead of /Application_name/.
• Always test configurations after making changes to catch any typos or errors. You can check Apache's syntax with sudo apache2ctl configtest.

内容的提问来源于stack exchange，提问作者SAI GIRI CHARY AOUSULA