how can i get variable data from java class to javascript?

Question

public String getVatNetAmount()
    {
        String expensetype = getRequest().getParameter("type");
        String localAmount = getRequest().getParameter("amount");
        Double localamt = Double.parseDouble(localAmount); 

        Double netAmount;


        netAmount = getExpensesTypeManager().getVatNetAmount(expensetype,localAmount);

         am = (float) ((localamt * netAmount)/100);
        // getRequest().setAttribute("NetAmount", am);

        return INPUT;
    }

this is my java class method and i want to get data in variable am on jsp page or in javascript function?

You can do it any many ways. Easiest of all is set the variable as Session attribute and access it in jsp — Sumanth Jois
– Sumanth Jois, Commented May 18, 2016 at 4:35
or store it in a model and then fetch it in jsp using <% java code %> — Sumanth Jois
– Sumanth Jois, Commented May 18, 2016 at 4:35
This code is useless for your question. What is the code that you're currently using to try to put the data in the page? (If you don't know where to start, make a Google search first) — castletheperson
– castletheperson, Commented May 18, 2016 at 4:36

Moolerian · Accepted Answer · 2016-05-18 05:29:20Z

1

You can use in this way :

<%
    String var="sth";
%>

<script>
     var value = "<%=var%>";
</script>

answered May 18, 2016 at 5:29

Moolerian

5627 silver badges19 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Ataur Rahman Munna · Accepted Answer · 2016-05-18 05:53:11Z

0

In Spring MVC, you can add your model to jsp using

ModelAndView mv = new ModelAndView();
mv.addObject("keyForJsp",object); // you can get data in jsp by using the key "keyForJsp"

now to get it in javascript. (using JSTL lib)

<script>
    var data = '${keyForJsp}';
</script>

answered May 18, 2016 at 5:53

Ataur Rahman Munna

3,9151 gold badge25 silver badges35 bronze badges

3 Comments

Ataur Rahman Munna Over a year ago

Yup, that's true @Thilo

Omar B. Over a year ago

is it the same thing in separate javascript file ? I mean not in script tag

Ataur Rahman Munna Over a year ago

@OmarB. For separate js file this is not working, because jstl code execute in server side and in jsp pages, not in js file. So what you can do? you just create a jsp file and add necessary jstl tag and add your all js file code inside the jsp page. then import it to your desired file. That should work like a charm. let me know if you can do this.

Collectives™ on Stack Overflow

how can i get variable data from java class to javascript?

2 Answers 2

Comments

3 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

3 Comments

Your Answer

Sign up or log in

Post as a guest

Related