What is package Struts2?

Packages are a way to group actions, results, result types, interceptors, and interceptor-stacks into a logical configuration unit. Conceptually, packages are similar to objects in that they can be extended and have individual parts that can be overridden by “sub” packages.

What is Struts2 NameSpace?

Struts 2 Namespace is a new concept to handle the multiple modules by given a namespace to each module. In addition, it can used to avoid conflicts between same action names located at different modules. Download It – Struts2-NameSpace-Configuration-Example.zip.

What’s the flow of requests in struts based application?

Struts 2 standard flow (Struts 2 architecture) Container maps the request in the web. xml file and gets the class name of controller. Container invokes the controller (StrutsPrepareAndExecuteFilter or FilterDispatcher). Since struts2.

What is action name Struts2?

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 Web xml Struts2?

The web. xml web application descriptor file represents the core of the Java web application, so it is appropriate that it is also part of the core of the Struts framework. In the web. xml file, Struts defines its FilterDispatcher, the Servlet Filter class that initializes the Struts framework and handles all requests.

What is action name Struts 2?

What is interceptors in Struts 2?

Interceptor is an object that is invoked at the preprocessing and postprocessing of a request. In Struts 2, interceptor is used to perform operations such as validation, exception handling, internationalization, displaying intermediate result etc.

What is Struts2 interceptor ref?

Which design pattern is used in Struts2?

MVC design pattern
Struts2 is a popular and mature web application framework based on the MVC design pattern.

What is xml based validation in Struts 2?

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.