Assigning Java variable to javascript variable.

[pawan chopra]

Hi All,

I have a list of objects. I am getting that list in jsp using request object.I want to fetch object from java list object then get a value from that object and assign it to a javascript variable. Is it possible? I have tried following code but Its not working. Also If it is possible how much time it will take if list size is 1500?

 <script type="text/javascript">
	<%
		List<CustomObject> customList = (List<CustomObject>)request.getAttribute("customList");
 		CustomObject customObject=null;
		if(customList != null) {%>
			d = new dTree('d');
	
		<%
		for (Iterator iterator = customList.iterator(); iterator.hasNext();) {
			customObject = (CustomObject)iterator.next();
		%>	
				var id_var = <%=customObject.getId()%>;
		 		var parentId_var = <%=customObject.getParentId()%>;
		 		var href_var =<%=customObject.getHref()%>;
		 		var	class_var= <%=customObject.getClazz()%>;
		 		var label_var = <%=customObject.getLabel()%>;
			
			d.add(parseInt(id_var), parseInt(parentId_var),label_var,href_var,'','',class_var,'','','');
		<% } %>
		document.write(d);
		<% } %>
		
	
</script>
   

[Balu Sadhasivam]

Pawan,

I have tried following code but Its not working

is useless and doesn't provide any clue to anybody here.

Check your HTML generated by the code ( View source of web browser) and see if you could figure it out.

[Seetharaman Venkatasamy]

Try this

   

<script type="text/javascript">
	function jsFunc(b){
		alert(b);
	}
</script>
 

  onclick='javascript:jsFunc("${'Hai'}")'  

scriptlet in jsp is discourage . set the value into anyscope on servlet . and use EL to read that . Here i use String "Hai"
for example .

Hope this helps

[Albareto McKenzie]

What you are trying to do is possible but not recommended. As seetharaman has told you, try to use EL

[William Brogden]

When debugging servlet/jsp/javascript applications it is helpful to use a browser such as FireFox with plugins which let you see EXACTLY what the browser request is actually getting and the JavaScript structures being created.

Bill