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  Tutorial: Using tiles-defs.xml in Tiles Application

Using tiles-defs.xml in Tiles Application Using tiles-defs.xml in Tiles Application In the last section we studied how to forward the request (call) to a jsp page which specifies which tiles layout definition should be used to apply to the

Tutorial Details:

content. In this section I will show you how to use the a definition in the tiles-defs.xml for generating the content.
In Tiles we can define the definition in the tiles-defs.xml which specifies the different components to "plugin" to generate the output. This eliminates the need to define extra jsp file for each content file. For example in the last section we defined example.jsp to display the content of content.jsp file. In this section I will show you how to eliminate the need of extra jsp file using tiles-defs.xml file.
Steps to Use the tiles-defs.xml Setup the Tiles plugin in struts-config.xml file.
Add the following code in the struts-config.xml (If not present). This enables the TilesPlugin to use the /WEB-INF/tiles-defs.xml file.






Defining the tiles-defs.xml
In this file we are defining the different components to "plugin". Here is the code:







The name of the definition is Tiles.Example, we will use this in struts-config.xml (While creating forwards in struts-config.xml file) file. The page attribute defines the template file to be used and the put tag specifies the different components to "plugin". Your tiles-defs.xml should look like:

"-//Apache Software Foundation//DTD Tiles Configuration 1.1//EN"
"http://jakarta.apache.org/struts/dtds/tiles-config_1_1.dtd">











Configure the Struts Action to use Tiles Definition
Open the struts-config.xml file and add the following code:
forward="Tiles.Example"/>
With Tiles, the action points to the Tiles definition, as shown in the above code. In this code we are using the Tiles.Example definition which we have defined in the tiles-defs.xml file. Without Tiles, forward and action definitions point directly to JSPs. With Tiles, they point to the page's definition in the Tiles configuration file.
Testing the Application
Create a link in index.jsp to call the Example. Code added are:

  • Using tiles-defs.xml


    Example shows you how to use tiles-defs.xml file.

    • To test the application build it using ant and deploy on the JBoss server. Type http://localhost:8080/strutstutorial/index.jsp in the bowser and select the Using tiles-defs.xml link. Your browser should show the page.


     

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