I need to call java class method inside jquery , how do i do that ?

For more understanding Ex:

Class Foo{
      public static void letsCall(){
          // Do something here ...
      }
}

I want to call this letsCall() Method from jquery.

I need to call java class method inside jquery , how do i do that ?

For more understanding Ex:

Class Foo{
      public static void letsCall(){
          // Do something here ...
      }
}

I want to call this letsCall() Method from jquery.

• java
• javascript
• jquery

Share Improve this question Follow edited Apr 2, 2014 at 6:11 Baby 5,11233 gold badges3232 silver badges5252 bronze badges asked Apr 2, 2014 at 6:10 User123456User123456 18911 gold badge66 silver badges1414 bronze badges 3

• Expose the method using a servlet and call it. You should consider implementing a proper, simple RESTful web service just to keep it nice and clear. – toniedzwiedz Commented Apr 2, 2014 at 6:13
• try with jsp like <%=function%> – Mr.G Commented Apr 2, 2014 at 6:18
• I dont want to use JSP or servlets for this , only jquery call to Java Class... – User123456 Commented Apr 2, 2014 at 6:18

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3 Answers 3

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1 approach:-

in jquery api, to call any backend system , in your case java, you need to do ajax call to invoke your java controller or service.

jquery ajax post call (call your java controller here)

2nd approach:-

if you need java class to take part in your jsp formation , you can go for custom tags, in your case you can look for jsf framework which basically bind your user events to your controller.

other frameworks - springmvc bind your jsp attributes to its corresponding models, in this case no need to use jquery , you can achieve it through spring custom tags.

spring mvc example

spring custom tags example

spring custom tag example

Calling a backend Java method from JavaScript/jQuery in JSP

Calling Java inside JavaScript Function

There are maybe a half dozen more similarly worded questions, please google first!

Check out DWR. We use it a lot to do this kind of thing and it works well. It wraps all the ajax stuff so you don't have to worry about it.