Java(TM) Boutique - Stepping through the Struts 1.1 Validator

Tutorials : Stepping through the Struts 1.1 Validator :

To use the new Validator, there are a couple of steps you'll have to go through. Let's take them one at a time.

Step 0: Install Struts 1.1

Go to the Jakarta Struts download page at http:// jakarta.apache.org/site/binindex.cgi, find release 1.1, download it and unzip in a folder, for example c:\struts11. Do you have a Tomcat web server ready on your workstation? As always I'd recommend that you use one, since Tomcat is such a simple and stable server, such that if things don't work, it's probably not Tomcat's fault. You can download Tomcat here.

Now copy three war-files to Tomcat's webapps directory: struts-blank, struts-documentation, and struts-validator. These are all example applications. The first one we'll use for building new applications, the second one contains the Struts documentation, including JavaDoc. The third contains a few demos of the new Validator.

Start Tomcat. This will build three new directories in the webapps folder and correspondingly three new applications. Enter http://localhost:8080/manager/list to get a list of running applications (you may need to define a user in conf/tomcat- users.xml in order to run this application). The three new applications should show up. To see if the Validator is working correctly enter http://localhost:8080/struts- validator/index.jsp and try the "Registration" application at the top of the web page.

Step 1: Make a copy of struts-blank

To start building a new application you may start out from a copy of struts-blank. Rename struts-blank.war to strutsvalidation.war and restart Tomcat. This creates a new application called strutsvalidation. If you're new to Struts 1.1 go to the strutsvalidation folder, look in the Web-inf folder and also in the Web-inf/lib folder. Here you'll see several new files. Furthermore, the ApplicationResources.properties file which in pre-1.1 was defined in web.xml has been moved to classes/resources and is now defined in struts- config.xml. However, Struts still recognizes both places for definition.

Enter http://localhost :8080/strutsvalidation to see the Welcome page from struts-blank.

Now we'll edit and add several files to the strutsvalidation folder. All can be found in the zip file found in the resources section.

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