how to access ModelAndView from jsp

[Manu ravi]

I have pasted snippet of the code below:

Code:

   <c:iterate name="list" id="payment" index="idx">
	<tr class="gRowEven"
       
	_paymentTransId="<c:write name="payment" property="claimPaymentTransId" />">

<td class="col6"> <c:exists name="payment" property="property5"></td>

now i have a ModelAndView object being returned from the controller which lists the paymentTransIds that i want to display as bold.
Now my problem is how do i iterate through this List being returned by controller and based on that decide to make the column bold or not.

I have a user defined tag lib as

    <tag>
		<name>present</name>
		<tag-class>view.taglib.LogicPresentTag</tag-class>
		<body-content>JSP</body-content>
		<description>
			Tests for the presence in either any scope of a bean.
		</description>
		<attribute>
			<name>name</name>
			<required>false</required>
			<rtexprvalue>true</rtexprvalue>
		</attribute>
		<attribute>
			<name>parameter</name>
			<required>false</required>
			<rtexprvalue>true</rtexprvalue>
		</attribute>
		<attribute>
			<name>property</name>
			<required>false</required>
			<rtexprvalue>true</rtexprvalue>
		</attribute>
	</tag>

Thanks
I would appreciate any help

[Seetharaman Venkatasamy]

I dont see any relation between your custom action in jsp and in tld(present).

[Seetharaman Venkatasamy]

Welcome to JavaRanch Manu ravi :)

[Manu ravi]

well what present does is that it checks if the bean exists in scope.
for eg:
<c:present name="mybean" property="beanproperty">
if condition is true then do something.
</c:present>

I think my question should have been how do i set a bean to the current _paymentTransId that i have initialized in <tr> so as to access my modelandview object in controller and then iterate through the list returned by the modelandview object

[Bear Bibeault]

ModelAndView is not a JSP class. If it's from a framework, perhaps you should tell us which?

[Manu ravi]

I am using spring framework. my flow is: jsp -> bean -> controller -> service method -> DAO

[Bill Gorder]

You can access model objects in the JSP as I described in this post:

https://coderanch.com/t/587317/Spring/Forms-Spring-MVC#2674378

As for iterating you can do something like I described in this post

https://coderanch.com/t/589779/Spring/Edit-object-collection-JSP-view#2686596

[Manu ravi]

I have to pass the modelandview object to a pojo which is then accessed by the jsp as a bean. I am pretty new to this.
I thought my controller returns a modelandview object to jsp. but its apparently not so. the table already uses an iterator. so can I use an iterator within this to validate if the parameter that I have declared in the code above exists in the list returned?

[Bill Gorder]

Post your controller and relevant handler mappings.

[Manu ravi]

I am unable to get to the handler mapping for the pojo to controller or jsp to pojo. All I have is a mapping for jsp to controller.

Actually I kind of figured it out. I was trying to get the data in a round about way. I was querying with the wrong parameter. I think its working for now.
Thanks for the help

[Bill Gorder]

Ok glad you got it figured out. In one of those links I posted I showed a sample @RequestMapping on a controller. Anything you put on the model should be accessible in the view using the syntax I also demonstrated in the same post.

[Manu ravi]

the thing i need to do is that I need to pass _payment that was initialized in tr to a method in controller. Am I correct in assuming _payment in the following code:

<tr class="gRowEven"  
         
    _paymentTransId="<c:write name="payment" property="claimPaymentTransId" />"> 

can be passed on to the request???

[Bill Gorder]

I am sorry but I really don't understand what you are trying to do at all. What taglib is the c prefix bound to? I asked you in my last response to post your Spring Controller code, that would give me a better idea of what Spring is expecting. So far none of what you have posted is Spring related. I don't see any Spring tags in your JSP and I don't see any Controller code. Spring is very flexible and will allow a lot of things but from what I can see you are trying to do things way outside the accepted way.

I don't see any objects being bound to a bean in your jsp I don't see any forms being submitted, I don't see any ajax calls, I don't see you calling the server anywhere. If I did see these things I would not be able to tell you if is correct because you have not shown us your @RequestMapping in your controller. You need to TellTheDetails.