Question

18

retrieve value of arraylist in javascript in same page

rated 0 times [ 19] [ 1] / answers: 1 / hits: 21799 / 12 Years ago, thu, june 28, 2012, 12:00:00

There is a JSP page in which i have an ArrayList variable. I need these arraylist values(txt1 and txt2) in script tag.I have tried lots of combinations and googling but didnot succeed.

javascript function

function fun1()

{   

   // how to get arraylist values      

}

JSP page:

 <body>

       <%

           ArrayList<String> al= new ArrayList<String>();

           al.add(txt1);

           al.add(txt2);



           out.println(<input type=text id= + al.get(0) + >);out.println(<br>);

           out.println(<input type=text id=  + al.get(1) + >);out.println(<br>);

           out.println(<input type=button id=btn1  value=click onClick=fun1(); > );

       %>

 </body>

Thanks for reply

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americar

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2 Years ago

answered 12 Years ago raveno · Accepted Answer

Inside javascript you can use Scriplets very well

Assume the list 'arrayList' is having [1,2,3,4] in java (JSP)

you can get the array list by this

function fun1()

{   

   var list = '<%= arrayList %>';

}

if you print the variable list, it will be a string with value '[1,2,3,4]'

You can then split this using Regex or simple string operation

<body>

       <%

           ArrayList<String> al= new ArrayList<String>();

           al.add(txt1);

           al.add(txt2);



           out.println(<input type=text id= + al.get(0) + >);out.println(<br>);

           out.println(<input type=text id=  + al.get(1) + >);out.println(<br>);

           out.println(<input type=button id=btn1  value=click onClick=fun1(); > );

       %>

 </body>



<script>

 // try the script here

</script>