用于在tomcat中部署war文件的安装页面

I am trying to create an installer for my war file. To explain further, I have a GWT project that I made into a war file for deployment in tomcat but I want the program to go to an install page when it is accessed for the first time (just like with Drupal and OpenMRS). And in this install page, I would be able to indicate the database name, the database user and password and the admin details that I would be using for my war file. Also, all my database tables will be loaded once I submit this install page. Can anyone give me tips on how to do this? ThanksI am trying to create an installer for my war f