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What are the core classes of struts?
v.prathibha
- Sep 23rd, 2011
Actionform, Actionclass, ActionMapping, ActionForwrd, Action Errors.
devabscmca
- Jul 31st, 2010
The core class of struts framework is 1) ActionServlet2) Action3) ActionForward4) ActionMapping5) ActionErrors6) RequestProcessor7) ActionForm
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Struts Application in RAD error
I am trying to run the Struts Application in RAD using Websphere application 6.1 but its not working its giving as error:
There is no Action mapped for namespace / and action name . - [unknown location]
at com.opensymphony.xwork2.DefaultActionProxy.prepare(DefaultActionProxy.java:178)
at org.apache.struts2.impl.StrutsActionProxy.prepare(StrutsActionProxy.java:61) -
How to add multiple .property files in Sturts-config.xml file..?
If any one knows the answer plz add..
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What is Struts
Answered by asreeni on 2005-04-08 03:24:40: The core of the Struts framework is a flexible control layer based on standard technologies like Java Servlets, JavaBeans, ResourceBundles, and XML, as well as various Jakarta Commons packages. Struts encourages application architectures based on the Model 2 approach, a variation of the classic Model-View-Controller (MVC) design paradigm. Struts...
vana_mlk
- Jul 2nd, 2010
I worked with struts it completely MVC base. I used SHINE pattern. It is a MVC base too. Actually it is an open source project to implement J2EE application.
satyanandr
- Sep 11th, 2009
Apache Struts is a frame work build on several design patterns like MVC, FrontController, Factory, Singleton etc., It is most suitable framework to develop web based applications, because this f...
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Explain all tyes of Action classes in Struts
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Struts 2 Framework
What are the advantages and disadvantages of Struts 2 Framework?
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Editorial / Best Answer
tirumurugan- Member Since Jun-2009 | Jun 25th, 2009
Advantages of struts
1. Centralized file-based configuration
2. Form beans.
3. Bean tags.
4. HTML tags
5. Form field validation
6. Consistent approach.
Disadvantages of struts
1. Bigger learning curve
2. BAD documentation
3. Less transparent
4. Rigid approach.lwpro2
- Oct 1st, 2010
1. no need coding action forms2. can be any method3. action name can contain place holders4. interceptors5. value stacks6. thread safecompared to struts 1
tirumurugan
- Jun 25th, 2009
Advantages of struts1. Centralized file-based configuration2.
Form beans.3. Bean tags.4. HTML tags5. Form field validation6.
Consistent approach.Disadvantages of struts1. Bigger learning curve2.
BAD documentation3. Less transparent4. Rigid approach. -
Struts Framework
Why we use Struts framework in project?
mani.sivapuram
- Feb 15th, 2011
Generally in any project we should use any design pattern to make project success. So many people find some sort of problems in their design but atlast they provide one solution to those common probl...
vinaymudgil007
- Feb 3rd, 2011
Benifits of using struts framework are [these are the reasons we should use struts]:-(1) Its based on MVC architecture [MVC-2 to be specific] and brings a clear line of demarkation between Controller ...
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Struts Heirarchy of Files
What is heirarchy of files in Struts?
mani.sivapuram
- Feb 15th, 2011
When we send the request from client then first it touches the ActionServlet--->RequestProcessor---->ActionForm(do the required validations)---->Action (execute method is executed)---->Service class(i...
ameesala
- May 14th, 2009
When the request is recived by ActionServlet it looks for the ActionMapping entries in the Struts-config.xml. ActionMapping returns the appropriate Action class where we handle the business logic.Finally execute() returns the ActionForward key (View).
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How do you perform tight coupling and loose coupling in Struts ?
Is it require to perform coupling in struts ? if yes then how?
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How can container will know this is a struts application?
mani.sivapuram
- Feb 17th, 2011
Here one thing i want to finalize i.e everything is working on servlet container only i.e we need only serlet container not sturts container .since when we deploy the application into the servlet cont...
vinaymudgil007
- Feb 7th, 2011
The control is forwarded from the container to struts controller when is reads an entry like :-- <servlet-name>action</servlet-name> <serv...
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Explain saveToken() function
mani.sivapuram
- Feb 17th, 2011
When we send the request once to the server then we should disable that button otherwise the user may thought that the request is not sent so he send the request again and again. Here the problem is w...
DEBABRAT
- Nov 24th, 2007
saveToken() method is used for duplicate form submission.Let's take an example i.e. yahoo email registration formYou filled the form and press the "submit" button more than once.For each action you do...
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What is diff. between MVC1 and MVC2?
mani.sivapuram
- Feb 17th, 2011
MVC1:-----In case of MVC1 Jsp is used as both view and controller.And JavaBean is used as Model i.e to persist the data into database Controller--->JSP View --->JSP ...
Srinivas
- Sep 4th, 2006
MVC is generlised architecture. There is no MVC1 and MVC2. According to Sun Microsystems in MVC Model1 driven architecture Controller and view is JSP and model is bean. In MVC model2 driven architecture we will use Servlet as controller, JSP as view and Bean as Model.
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What is switch action & forwardAction in struts
mani.sivapuram
- Feb 15th, 2011
when we are using multiple modules in that case i need to maintain different struts configuration files so i need to provide multiple struts configuration files in the web.xml in such situation i use ...
ArulMurugan
- Feb 13th, 2007
A Forward Action is a standard Action forwards the request to the context-relative URI(JSP/Servlet) specified by the parameter property of the associated ActionMapping.To configure the use of the For...
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What is the return type of DAO in Struts?
mani.sivapuram
- Feb 15th, 2011
There is no specification for the struts in DAO so DAO can send back any object to the action class.
vinaymudgil007
- Feb 7th, 2011
Struts doesn't lay a guideline for DAO layer for a programmers so I would say that the return type in a DAO is up to the programmers discretion.Thanks,Vinay
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How many ActionServlets are created by struts based application?
mani.sivapuram
- Feb 15th, 2011
When the client sends the request for that request one thread is created for that particular client. In te same way if multiple clients are send the request for the same web page here multiple threads are created with regarding their own ActionServlets so no confusion in between the clients.
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What is the actual purpose of using framework in realtime applications?
mani.sivapuram
- Feb 15th, 2011
To reduce the developer effort we will go for the framework. Because in the old projects are implemented with some pattern and they find some sort of common problems so all the common problems are sol...
g lingareddy
- Jul 3rd, 2010
Frame work automatically generate ActionServlet which is reduce the work of programmer. In traditional Servlet/JSP project programmer explicitly write Actionservlet
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What is the difference between servlet context and servlet config
vinaymudgil007
- Feb 7th, 2011
Servlet Config 1 Servlet config are one per servlet per JVM 2 It's inside the servlet it wont accessible to outside the servlet. Ex: <servlet> ??????????? <init-p...
Rohit
- Jul 22nd, 2007
Servlet Config parameters are set for the servlet initialization, these information is necessary for the servlet startup, eg.: Database connectivity, other xml files. etc.Servlet Context are used by t...
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type="com.test.LoginForm"/>
path="/login"
type="com.test.user.login.LoginAction"
name="loginForm"
validate="false">
Question: Assuming the class LoginForm contains a String property named "password", how does the LoginAction class access the attribute called "password" in the above request? Explain why.
Choice 1
String password = request.getParameter("password");
Choice 2
String password = request.getAttribute("password");
Choice 3
request.getParameterNames().getParameter("password");
Choice 4
String password = ((LoginForm) form).getPassword();
Choice 5
String password = form.getPassword();
">Question: Assuming the class LoginForm contains a String property named "password", how does the LoginAction class access the attribute called "password" in the above request? Explain why.Choice 1 String password = request.getParameter("password"); Choice 2 String password = request.getAttribute("password"); Choice 3 request.getParameterNames().getParameter("password"); Choice 4 String password = ((LoginForm) form).getPassword(); Choice 5 String password = form.getPassword();
vinaymudgil007
- Feb 7th, 2011
Choice 4
String password = ((LoginForm) form).getPassword();
is the appropriate answer wrt struts framework.
Thanks,
Vinay
prasad.juturi
- Aug 24th, 2009
If the values are set from a JSP, then we need to follow the request.getAttribute() method and while revalidating the fileds, the request.getParameter() method?will be fired.The reason for the above t...
Struts Interview Questions
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