How to display ArrayList in JSP

[Vineela Devi]

Hi,

In ActionClass i have an ArrayList which holds the dataObjects.(Data Object has no of fields like Name, Age, Qualification etc).How can i display all these fields in my JSP.

I had set the ArrayList to the form in the ActionClass.


Pls help me.

Thanks in Advance

Vineela

[Viswa]

Hi,
if the array list is a bunch of value from Java Bean. follow,
In action class
....
request.setAttribute("sendToJSP",arrayListObj);
...
In your jsp page
<bean:write name="sendToJSP" property="firstName"/>
<bean:write name="sendToJSP" property="middleName"/>
<bean:write name="sendToJSP" property="lastName"/>
if not bean,
use iterator and find the size using <bean:size/> and iterate continuously.
that's all
Viswa

[Vineela Devi]

Hi,

No, the ArrayList is not a bunch of value from javabean.Rather it is the result of the query which we run.

i.e In ActionClass when i call a method(which runs a query) in DAO, the return type is an ArrayList.

This is the ArrayList which I want to display in JSP

I think now it is clear.

Regards
Vineela

[Viswa]

Hi,
In Action class
...
request.setAttribute("sendToJsp",arrayListObj);
...
In JSP page
...
<logic:iterate id="myIter" name="sendToJsp">
<bean:write name="myIter"/>
</logic:iterate>
For example,
Your arrayListObj contains firstname,midname,lastname,mailid.
here in jsp page logic:iterate iterate the loop depends upon the size of the arraylist object.
So this 'll iterate 4 times according to our example.
bean:write gives values from that array list.
Try this.
Regards,
Viswa

[Pankaj Narang]

Hi

U have told the the arraylist contains the dataobjects from the query.So it may conatain many objects .

There r Three ways to disaply them on JSP

1:> Is simple iterate .But if u r using Struts framework it will disobey the laws of MVC. So this should not be done if Struts is used

2:> Use Logic:Iterate and print the values by bean:write but if the records r more it will dispaly all in single page that will be mess .

3:> Use Dispaly Which have the inbuild iterator in them and gives u the choice of no. of pages to be dispalyed per page.For theis taglib u have to give just the name of the list and it will iterate it for u.

Best Regards
Pankaj Narang

[Kinjal Sonpal]

Originally posted by Vineela Devi Jakka:
In ActionClass i have an ArrayList which holds the dataObjects.(Data Object has no of fields like Name, Age, Qualification etc).How can i display all these fields in my JSP.

Please try this code and see if it gives what you require

<table>
 <logic: iterate id="dataObject" name="myForm" indexId="idx" property="myArrayList">
 <tr>
   <td><bean: write name="dataObject" property="name" /></td>
   <td><bean: write name="dataObject" property="age" /></td>
   .
   .
 </tr>
   .
   .
 </logic: iterate>
</table>

HTH. Please post back for further query.

Thanks and regards,
Kinjal Sonpal