Which of the following is true in the life cycle of a request in Struts2 application?
Explanation. All of the above steps are part of the life cycle of a request in Struct2 application. Q 10 – Which of the following is true in the life cycle of a request in Struct2 application? A – Selected action is executed to perform the requested operation.
What types of validators are available in XML based validation in Struts2 *?
Struts2 XML based validation provides more options of validation like email validation, integer range validation, form validation field, expression validation, regex validation, required validation, requiredstring validation, stringlength validation and etc.
Which one of the following is a default suffix for action urls in Struts2?
.action
extension to configure the URL suffix to for Struts2 application. Default suffix is . action but sometimes we might want to change it to .
Which of the following components are available using ActionContext map?
Which components are available using ActionContext map? application − application scoped variables. session − session scoped variables. root / value stack − all your action variables are stored here.
What is XML based validation in Struts2?
What is action name Struts 2?
The action tag allows the programmers to execute an action from the view page. They can achieve this by specifying the action name. They can set the “executeResult” parameter to “true” to render the result directly in the view.
What is controller in Struts 2?
The main job of Controller is to decide which Action class will handle which request And controller does this with the help of Configuration defined by us in struts. xml file or by annotations in case of Struts 2.
Which type of validation we must implement the Validateable interface and provide the implementation of validate method?
Custom Validation
1) By Custom Validation Here, we must implement the Validateable interface (or extend ActionSupport class) and provide the implementation of validate method. 2) By Input Validation (built-in validators) Struts 2 provides a lot of predefined that can be used in struts 2 application to perform validation.
What are the benefits of Struts framework?
Advantages of Struts. Since Struts follow MVC framework, Java, JSP and Action classes are highly maintained and easy to understand for developers. The development time is less and this creates an advantage for the application developers. It is easy to maintain the applications due to the MVC framework.
How does XML validation work?
XML validation is the process of checking a document written in XML (eXtensible Markup Language) to confirm that it is both well-formed and also “valid” in that it follows a defined structure. A well-formed document follows the basic syntactic rules of XML, which are the same for all XML documents.
Which type of validation we must implement the Validateable interface or extend ActionSupport class and provide the implementation of validate method *?
What is model in struts2 framework?
Model contains the data and the business logic. In Struts 2 the model is implemented by the Action component. View is the presentation component of the MVC Pattern. In Struts 2 the view is commonly implemented using JSP, Velocity Template, Freemaker or some other presentation-layer technology.