Converting a JSONArray to String and then back to JSONArray

Question

I am trying to convert a string to jsonarray

I want to store string in MYsql

Code -

<%@page import="java.sql.*"%>
<%@page import="java.io.*"%>
<%@page import="java.util.*"%>

<%@page import="java.net.*"%>
<%@page import="javax.servlet.*"%>
<%@page import="javax.servlet.http.*"%>
<%@page import="net.sf.json.*"%>

<%
try 
{
JSONArray jArray = new JSONArray();
jArray.add("test");
String s = jArray.toString();
JSONArray newJArray = new JSONArray(s);
}
catch(Exception ex)
{
ex.printStackTrace(response.getWriter());  
} 
%>

But it gives error The constructor JSONArray(String) is undefined

I want to get jsonarray string back as a JSONArray for further use. Is this possible?

Answer 1

JsonConfig config = new JsonConfig();
config.setIgnoreDefaultExcludes(false);
config.setCycleDetectionStrategy(CycleDetectionStrategy.LENIENT);  
JSONArray jsonArray = JSONArray.fromObject(jsonString,config); 
List list=JSONArray.toList(jsonArray,beanClass);  

Answer 2

The import you are using is:

 <%@page import="net.sf.json.*"%>

instead you should use:

<%@page import="org.json.JSONArray"%>

You can download the jar from here

Then use the code :

    <%
    JSONArray jArray = new JSONArray();
    jArray.put("test");
    String s = jArray.toString();
    JSONArray new_array = new JSONArray(s);
    %>