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Struts interview questions

  • Q.What is Action Class? Explain with Example ? view answer
  • Q.How you can do Exception Handling in Struts ? view answer
  • Q. What are the Advantages of Struts ? view answer
  • How Iterate Tag used with a Map ? view answer
  • Q.How does client side validation using validator framework work in struts ? view answer
  • Q. How to do File Upload in Struts ? view answer
  • Q. What is DynaActionForm ? and How you can retrive the value which is set in the JSP Page in case of DynaActionForm ? view answer
  • Q. How to Setup validator framework in Struts ? view answer
  • Q.How does validator framework work in Struts ? view answer
  • What are Validators? and What are Basic Validators provided by the framework ? view answer
  • What is the Benefits of Using the Validator framework in struts ? view answer
  • Q. What is the Difference between DispatchAction and LookupDispatchAction ? view answer
  • Q. What is LookupDispatchAction? view answer
  • Q.How to create a multiple selections list in Struts? and retrive seleted values ? view answer
  • Q.How to create a drop down list in Struts? view answer
  • Q. What is DispatchAction ? view answer
  • Q. What is IncludeAction ? view answer
  • Q. How to Protect JSPs from direct access ? view answer
  • Q. What is ForwardAction ? view answer
  • How does reset() and Validate() method struts work ? view answer
  • Multiple buttons in struts using java script? view answer
  • Integration Struts Spring Hibernate ? view answer
  • Q.Mutli-click prevention using struts tokens with code example. view answer
  • Q. How to prevent mutli-click using struts tokens ? view answer
  • Q.How you will enable front-end validation based on the xml in validation.xml? view answer
  • Q.What is new in ServletRequest interface ? view answer
  • Q.Struts Action Chaining? view answer
  • Q.How can I avoid validating a form before data is entered? view answer
  • Q.Can I have an Action without a form? view answer
  • Q.What is Struts Validator Framework? view answer
  • Q.How you will make available any Message Resources Definitions file to the Struts Framework Environment? view answer
  • Q.What helpers in the form of JSP pages are provided in Struts framework? view answer
  • Q.How you will enable front-end client side validation based on the xml in validation.xml? view answer
  • Q.What design patterns are used in Struts? view answer
  • Q.What is role of Action Class? view answer
  • Q.What is ActionMapping and is the Action Mapping specified? view answer
  • Q.What is the ActionForm and what are important methods in ActionForm? view answer
  • Q.What is role of ActionServlet? view answer
  • Q.What is ActionServlet? view answer
  • What are the components of Struts? view answer
  • What is MVC and how it maps to Struts? view answer
  • How do you get a password field in struts ? view answer
  • Q.Struts Flow In Depth? view answer
  • Q.How does validate() method of ActionForm work ? view answer
  • Q.What are the important sections in Struts Configuration File ? struts-config.xml? view answer
  • Q.How to handle Handling multiple buttons in HTML Form ? view answer
  • Q.How does Value replacement in Message Resource Bundle work? view answer
  • What is SwitchAction? view answer
  • What is difference between LookupDispatchAction and DispatchAction? view answer
  • What is the use of LookupDispatchAction? view answer
  • What is LookupDispatchAction? view answer
  • What is the difference between ForwardAction and IncludeAction? view answer
  • What is IncludeAction? view answer
  • What is the use of ForwardAction? view answer
  • What is DispatchAction? view answer
  • What are the different kinds of actions in Struts? view answer
  • What is the difference between session scope and request scope when saving formbean ? view answer
  • Can we have more than one struts-config.xml file for a single Struts application? view answer
  • In which method of Action class the business logic is executed ? view answer
  • What is role of Action Class? view answer
  • How is the Action Mapping specified ? view answer
  • What is ActionMapping? view answer
  • Describe validate() and reset() methods ? view answer
  • What is role of ActionServlet? view answer
  • What are the core classes of the Struts Framework? view answer
  • What are the components of Struts? view answer
  • How you will enable front-end validation based on the xml in validation.xml? view answer
  • How you will display validation fail errors on jsp page? view answer
  • Give the Details of XML files used in Validator Framework? view answer
  • What is Struts Validator Framework? view answer
  • What is ActionForm? view answer
  • What is Action Class? view answer
  • How you will make available any Message Resources Definitions file to the Struts Framework Environment? view answer
  • What is ActionServlet? view answer
  • Q.How you will display validation fail errors on jsp page? view answer
  • Q.How you will enable front-end client validation based on the xml in validation.xml? view answer

!!! Struts interview questions !!!


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Q.How to create a multiple selections list in Struts? and retrive seleted values ?



This is the code to display multiple selections list and retrive seleted values in struts.
medList list contains list of Medium objects.

Java :
bean class.
public class Medium {
    int medId;
    String medName;

    /**
     * @return Returns the medId.
     */
    public int getMedId() {
        return medId;
    }
    /**
     * @param medId The medId to set.
     */
    public void setMedId(int medId) {
        this.medId = medId;
    }
    /**
     * @return Returns the medName.
     */
    public String getMedName() {
        return medName;
    }
    /**
     * @param medName The medName to set.
     */
    public void setMedName(String medName) {
        this.medName = medName;
    }
}

In the Form Class :

public class MediumForm {
private List medList;
private String[] med;
    public void setMedList(List medList){
        this.medList = medList;
    }
    
    public List getMedList(){
        return this.medList;
    }

    public String[] getMed() {
        return med;
    }
    
    public void setMed(String[] med) {
        this.med = med;
    }
    

}

In the Action class :

List medList = DAO.getMediums();
form.setMedList(medList);

DAO Class :

DAO Class to retrive mediums in data base.
public static List getMediums(){
        PreparedStatement pStmt = null;
     Connection conn = null;
     boolean success = false;
     ResultSet rs = null;
     List medList = new ArrayList();
    
     try{
         conn = getConnection();
         
         String sql = " select * from MEDIUM ";
         pStmt = conn.prepareStatement(sql);
                  
         rs = pStmt.executeQuery();
         while(rs.next()){
             Medium med = new Medium();
             med.setMedId(rs.getInt("MED_ID"));
             med.setMedName(rs.getString("MEDIUM_NAME"));
             medList.add(med);
             }
        
        
        
     }catch(Exception e){
         e.printStackTrace();
         
     }finally{
         closeConnectionProp(conn,pStmt,rs);
     }
        
     return medList;
    
    }

JSP Struts:

<html:select name="MediumForm" property="med" multiple="true">

<bean:define name="MediumForm" property="medList" id="mlist" />
<html:options collection="mlist" property="medId" labelProperty="medName" />
</html:select>



In the Action class again :
how to retrive the selected values.

String[] med = form.getMed();

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