Which is default result type in struts2?
Which is default result type in struts2?
The dispatcher result type is the default type, and is used if no other result type is specified. It’s used to forward to a servlet, JSP, HTML page, and so on, on the server. It uses the RequestDispatcher. forward() method.
What is model driven in struts2?
Struts 2 does not have “forms” like Struts 1 did. In Struts 2 request parameters are bound directly to fields in the actions class, and this class is placed on top of the stack when the action is executed. If an action class implements the interface com.
What is the action class in struts2?
In struts 2, action class is POJO (Plain Old Java Object). POJO means you are not forced to implement any interface or extend any class.
How does interceptor work 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 are types in struts?
Predefined Result Types
| Chain Result | Used for Action Chaining |
|---|---|
| XSL Result | Used for XML/XSLT integration |
| Plain Result | A plain result which all you to write directly to a HttpResponse using a simplified API (since Struts 2.6) |
| PlainText Result | Used to display the raw content of a particular file/page (i.e jsp, HTML) |
What is return type of execute () method in Struts 2?
Return types from execute() method in struts2 action One thing I just picked up is that there are 5 different return values from the action’s execute() method, that are pre-defined in the framework, namely SUCCESS, ERROR, INPUT, LOGIN, NONE.
What is an action class?
Actions class is an ability provided by Selenium for handling keyboard and mouse events. In Selenium WebDriver, handling these events includes operations such as drag and drop, clicking on multiple elements with the control key, among others. These operations are performed using the advanced user interactions API.
What is valueStack in Struts2?
A valueStack is simply a stack that contains application specific objects such as action objects and other model object. At the execution time, action is placed on the top of the stack. We can put objects in the valuestack, query it and delete it.
What is defaultStack interceptor in Struts2?
The default Interceptor stack is designed to serve the needs of most applications. Most applications will not need to add Interceptors or change the Interceptor stack. Many Actions share common concerns. Some Actions need input validated. Other Actions may need a file upload to be pre-processed.
Why are Struts used?
Struts is an open source framework that extends the Java Servlet API and employs a Model, View, Controller (MVC) architecture. It enables you to create maintainable, extensible, and flexible web applications based on standard technologies, such as JSP pages, JavaBeans, resource bundles, and XML.
