Is it possible to send arraylist from jsp to javascript(same page)

[ritesh padhe]

Hello Everyone,
I want to send arraylist from jsp to javascript(same page). Is it possible? If yes, please send any pointers.
Thanks in advance.

[Bear Bibeault]

Not directly.

But you can use JSP mechanisms to create JavaScript markup that re-creates the data of the array.

[ritesh padhe]

Hi Bear,

Thanks for the reply.
Can you please share any code sample? It will be very helpful for me.

[Anuj Batra]

According to me you cannot do it. The array llist creation is on the server side. So when the array list is processed (the whole code in jsp) it is converted into an html page and sent to the client. on client side you do not have any server side code. So it is not possible. However there are certain ways in which this could be achieved like

<%
 String[] a = {"a","b","c"};
String temp = "";
for(int i =0; i < a.length ;i++) {
   temp += a[i] + ",";
}

<input type="hidden" id="h1" value="<%=temp %>"
%>

// Now while using the javascript

var arrayString = $("#h1").val().split(",");
for(i =0; i < arrayString.size() ;i++) {
   tempString += a[i] + "    "; //Used space to construct a string
}

[Albareto McKenzie]

Anuj Batra wrote:According to me you cannot do it. The array llist creation is on the server side. So when the array list is processed (the whole code in jsp) it is converted into an html page and sent to the client. on client side you do not have any server side code. So it is not possible. However there are certain ways in which this could be achieved like

<%
 String[] a = {"a","b","c"};
String temp = "";
for(int i =0; i < a.length ;i++) {
   temp += a[i] + ",";
}

<input type="hidden" id="h1" value="<%=temp %>"
%>

// Now while using the javascript

var arrayString = $("#h1").val().split(",");
for(i =0; i < arrayString.size() ;i++) {
   tempString += a[i] + "    "; //Used space to construct a string
}

You can use directly the variable, no need to put it in a hidden field, just use it in the script code: var arrayString = '${temp}'.split(','); or whatever other code you need.

[Bear Bibeault]

Except that using scriptlets in JSP pages is no longer acceptable. Use the JSTL and EL like big boys.