How to set the JSTL variable value in javascript?

Question

How to set the JSTL variable value in java script?

Answer 1

You can save the whole jstl object as a Javascript object by converting the whole object to json. It is possible by Jackson in java.

import com.fasterxml.jackson.databind.ObjectMapper;

public class JsonUtil{
   public static String toJsonString(Object obj){
      ObjectMapper objectMapper = ...; // jackson object mapper
      return objectMapper.writeValueAsString(obj);
   }
}

/WEB-INF/tags/util-functions.tld:

 

  1.0
  http://www.your.url/util-functions

  
      toJsonString
      your.package.JsonUtil
      java.lang.String toJsonString(java.lang.Object)
    

 

web.xml

  
    http://www.your.url/util-functions
    /WEB-INF/tags/util-functions.tld
  

mypage.jsp:

<%@ taglib prefix="uf" uri="http://www.your.url/util-functions" %>