Issue in Struts Dropdown(Need Help Ranchers)

[Deepak Lal]

Hi Ranchers,
Im facing problems with my dropdown list population in Struts 1.x version.

Please find the below code.I need your help ranchers to resolve this problem.

In jsp (for displaying the dropdown values)

 <tr >
                  <td  >Country DropDown :</td> 
                  <td>
                  <bean:define id="XYZListData" name="form" property="XYZListData"/>
                      <bean:define id="moduledropdownvalues" name="XYZListData" property="XYZDropDownList"/>                                   
                          <html:select property="selectedModule" >                       
                               <html:options collection="moduledropdownvalues" />                                          
                         </html:select>                                              
                  </td>
</tr>

In action form: I have written a method as shown below


      private void getIds(ActionMapping mapping, ActionForm form,
                  HttpServletRequest request, HttpServletResponse response) {
            //form declared
            List  ListData = null;                                 
            ListData = (ArrayList) staticDataService.getIds();
            form.setXYZListData(ListData); 
            XYZPOJO m = null;
            Iterator it = ListData.iterator();  
            List XYZDropDownValues = new ArrayList();
            int i =0;   
            while (it.hasNext()) {
                  m = (XYZPOJO)it.next();                                  
                  System.out.println("::"+m.getModule_Id());                                                      
                  XYZDropDownValues.add(new XYZDropDownList(i,m.getModule_Id()));
                  i=i+1;                                                                     
            }           
           m.setXYZDropDownList(XYZDropDownValues);              
      }



public class XYZPOJO {
                private String module_Id;              
                private List   XYZDropDownList=new ArrayList();
                //getter/setters for the same have been declared.
}

public class XYZDropDownList {
      private int id;
      private String name;
     //getter and setter for the same.
 }


Error is as below in jsp...Need Help Ranchers.

I’m getting an error as shown below

 

org.apache.jasper.JasperException: No getter method for property XYZDropDownList of bean ListData

        org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:460)

        org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:355)

        org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:329)

        org.apache.jasper.servlet.JspServlet.service(JspServlet.java:265)

        javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

        org.apache.struts.action.RequestProcessor.doForward(RequestProcessor.java:1033)

        org.apache.struts.action.RequestProcessor.processForwardConfig(RequestProcessor.java:436)

        org.apache.struts.action.RequestProcessor.processActionForward(RequestProcessor.java:401)

        org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:279)

        org.apache.struts.action.ActionServlet.process(ActionServlet.java:1349)

        org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:489)

        javax.servlet.http.HttpServlet.service(HttpServlet.java:627)

        javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

Please tell me how should i populate the values from the list named "ListData" on to the jsp page i.e how should the Country Dropdown be populated
Please help me since i have been struggling to get this right.

[Deepak Lal]

Please help me with this issue.

[Siva Masilamani]

could you post your entire ActionForm class?

[Deepak Lal]

Hi Siva,
Please find the code below....Please help me out since the error is pointed out in jsp page.

In action form: I have written a method as shown below   
  
     public void execute(ActionMapping mapping, ActionForm form,   
                  HttpServletRequest request, HttpServletResponse response){
         getIds(mapping,form,request,response);                     
     } 

     private void getIds(ActionMapping mapping, ActionForm form,   
                  HttpServletRequest request, HttpServletResponse response) {   
            //form declared   
            List  ListData = null;                                    
            ListData = (ArrayList) staticDataService.getIds();   
            form.setXYZListData(ListData);    
            XYZPOJO m = null;   
            Iterator it = ListData.iterator();     
            List XYZDropDownValues = new ArrayList();   
            int i =0;      
            while (it.hasNext()) {   
                  m = (XYZPOJO)it.next();                                     
                  System.out.println("::"+m.getModule_Id());                                                         
                  XYZDropDownValues.add(new XYZDropDownList(i,m.getModule_Id()));   
                  i=i+1;                                                                        
            }              
           m.setXYZDropDownList(XYZDropDownValues);                 
     }

Could you please modify the jsp page so that i can get the correct output ....

[Siva Masilamani]

This is the Action class i need ActionForm class and also Struts-config.xml to have good look into your problem

[Deepak Lal]

XYZ form as below:

public class XYZForm extends ActionForm{
	   private List XYZListData=new ArrayList();
                  //getters and setters for above list
}

<action
        path="/XYZ"
        type="XYZAction"
        name="XYZForm"
        scope="request"
         >
        <forward name="success" path="/pages/success.jsp"/>     
        <forward name="failure" path="/pages/failure.jsp"/>
</action>     


 

The problem lies within jsp.can you modify the jsp and tell me where it is wrong.???

[Siva Masilamani]

Let me know what are you trying to display.

Name? or id?

By the way try to follow naming conventions when declaring Variable.

Use camelCase when the variable has more than one word or else start with lowercase letter if the variable name is singe word.

  <bean:define id="listData" name="form" property="XYZListData"/>   
<bean:define id="dropDownValues" name="listData" property="XYZDropDownList"/>  
<html:options collection="dropDownValues" property="id"  labelProperty="name" />  

will display name as lable and id as value.

But why this statement lies outside while loop

m.setXYZDropDownList(XYZDropDownValues);

[Deepak Lal]

Hi Siva,

Please find my queries.

Let me know what are you trying to display.
Name? or id? ---> I want to display name

By the way try to follow naming conventions when declaring Variable. --- Ok got it

Use camelCase when the variable has more than one word or else start with lowercase letter if the variable name is singe word.

                <bean:define id="listData" name="form" property="XYZListData"/>   
                         <bean:define id="dropDownValues" name="listData" property="XYZDropDownList"/>  
                                    <html:options collection="dropDownValues" property="id"  labelProperty="name" />  
 

But why this statement lies outside while loop 
m.setXYZDropDownList(XYZDropDownValues); 
The above statement is outside while loop because once my list is constructed i will set it into a Pojo object......Hope it clarifies -->Please correct me if im wrong.

Will the above code which you have pasted work???

[Siva Masilamani]

Deepak Lal wrote:Hi Siva,

Please find my queries.

Let me know what are you trying to display.
Name? or id? ---> I want to display name

By the way try to follow naming conventions when declaring Variable. --- Ok got it

Use camelCase when the variable has more than one word or else start with lowercase letter if the variable name is singe word.

                <bean:define id="listData" name="form" property="XYZListData"/>   
                         <bean:define id="dropDownValues" name="listData" property="XYZDropDownList"/>  
                                    <html:options collection="dropDownValues" property="id"  labelProperty="name" />  
 

[code]
But why this statement lies outside while loop
m.setXYZDropDownList(XYZDropDownValues);
The above statement is outside while loop because once my list is constructed i will set it into a Pojo object......Hope it clarifies -->Please correct me if im wrong.

XYZPOJO class has two attributes moduleid,XYZDropdownList.I do not know where you are setting the value for both of these attributes.
Then inside while loop you are retrieving first XYZPojo object and displaying module id(So it seems the POJO object has been initialized somewhere only with module id not with the XYZDropDownlist.Then you are constructing XYZDropDownlist by passing the id and module id as the attribute.So id will be stored in id and module id will be stored as name in the XYZDropDwonlist class.Now,if you want to assign value to the XYZDropdownList attribute of the POJO class then you should have that statement inside the while loop so that the Object is completly initalized with List attribute inthe POJO class.

Will the above code which you have pasted work???

May be. I still did not understand why do you have List attribute in your POJO class.

Let me know the full operation so that i can help you.

[Deepak Lal]

Hi Siva,

Requirement :i have told you that i need to assign a dropdown list to jsp page so what changes i need to do to my code.