How to call java method in JSTL?

Question

This might be duplicate question.

I just want to call method which is not getter or setter method eg. makeCall(someObj,"stringvalue") of xyz class.

Java Class

Class XYZ{

    public String makeCall(Object objValue, String stringValue){

    //some logic here

    }
}

JSTL

<jsp:userBean id="xyz" class="com.XYZ"/>
${xyz.makeCall("hello","Friend")}

Just a small typo correction. It is 'useBean' and not 'userBean' — Punit Pandey, Mar 07 '20 at 12:13

Braj · Answer 1 · 2014-08-08T08:21:50.260

5

Simply create an object of the class using <jsp:useBean> and call the method using JavaServer Pages Standard Tag Library or Expression Language that is more easy to use and less error prone.

sample code:

<jsp:useBean id="test" class="com.x.y.z.XYZ"/>

${test.methodXYZ(object,"myString")}

Read more about Implicit Objects that might help you.

edited Aug 08 '14 at 08:21

answered Aug 08 '14 at 08:12

Braj

It gives me unable to parse EL function error.. – Sachin J Aug 08 '14 at 08:30
Please share what have you tried. Edit it in your actual question. How are you passing the object? – Braj Aug 08 '14 at 08:32
what is ` – Braj Aug 08 '14 at 08:48
Actually I have string in that place. I have edited question please check it – Sachin J Aug 08 '14 at 08:49
have you changed `user` to `use` – Braj Aug 08 '14 at 08:59

score 2 · Answer 2 · answered Aug 08 '14 at 08:12

2

Try with this:

<c:out value="${XYZbean.makeCall(someObjBean, 'value')}" />

answered Aug 08 '14 at 08:12

Balduz

score 1 · Accepted Answer · answered Aug 14 '14 at 06:29

1

For resolve this we need create your own tag. (in .tld file)

and need to write one java class for this tag.

After this you can call method within that your own class and set result to pageCotext to retrive it on jsp.

answered Aug 14 '14 at 06:29

Sachin J

3 Answers3