Struts 2 action tag is helpful for executing an action and inserting the result in a particular location of the web page. There are two options with action tag, if the value for the executeResult is set to “true”, then the result is displayed to the page as it is defined in that target view. […]

If you are working on the Struts 2 applications, you would have noticed that while configuring the Struts 2 filter in your web.xml deployment descriptor, there is two different classes are used. One is org.apache.struts2.dispatcher.FilterDispatcher and another one is org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter. The simple answer is, org.apache.struts2.dispatcher.FilterDispatcher – Used in the early development of Struts 2 and […]

Struts 2 provides list of conditional or control tags which is very useful for controlling the flow of an application. The following are the list of important tags listed under conditional tags. If and else Iterator Merge Append Generator 1. The if and else tags This tag is useful for executing the simple if or […]

Struts 2 generator tag takes inline array or list of values and pass to the s:iterator to loop through the list of values. 1. Create Struts 2 Action Create  action class. 2. Generator Tag Example Write JSP with generator tag to display the list of values. 3. Struts.xml configurations Write struts.xml configuration file. 4. Run […]

Struts 2 merge tag is useful for merging the two lists into one object. This is very helpful when you have two different list of objects and then you need to merge them and use it in your JSP page. Merge tag has nested param element to take the multiple list objects in each line. […]

Struts 2 iterator tag is useful for iterating a value which of type java.util.Collections or java.util.Iterator. This example demonstrates with a simple iteration block which is taking the users list and displaying the list of users in the list. 1. Create Data Bean Create a UserDetails.java bean to hold the user details. 2. Create Struts […]

This tag is useful for executing the simple if or else condition by taking the values from a variable. It is very similar to the one used in every language. You can use single else block or the multiple else block by using the else if condition. Let’s see an example to show the use of […]

If you are a first time developer who start working on the Struts 2 application, you would have got the below exception and no clue how to fix this problem. This error is thrown because your struts 2 application not able to read your configuration file struts.xml. In any other frameworks we keep the configuration […]

Struts 2 simplifies the way we handle the exceptions. In the earlier version of Struts application, handling exceptions needs lot of work. In Struts 2, You can configure the exception type in the configuration file for the each action mapping and redirect to the custom error page. Here I have modified our hello world example […]

This tutorials explains how to create a simple struts 2 hello world example and deploy in your server. We are manually creating the required files and running the struts 2 application. Struts 2 Components Action: Create Action class to write your business logic and work as controller. Action classes are used for interaction from the […]