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POHow to retrieve data from json string in jsp send from the another page using ajax
 

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    <p>I am developing a web application. I have get the value from the data base using jsp and displayed to the user. On certain action from the user, i want to load the another page which will require same values which are fetched from the database.</p> <p>For this I have created json object of this data in page1.jsp and passed to the another page2.jsp. Now I want to retrieve that data. I have tried with gunction getString() functions, but it gives null value.</p> <p>my first page is which sends the json data</p> <pre><code>$.ajax({ type : "POST", url: "./ProfileUser.jsp", // This not redirecting. data: "jsonData=" + JSON.stringify(jsonobj), dataType: "json" }); $(location).attr('href',url); //This is redirecting, If I removed this then another page is NOT loading </code></pre> <p>and the jsp code where I am retrieving this data </p> <pre><code>&lt;%@page contentType="text/html" pageEncoding="UTF-8"%&gt; &lt;%@page import="com.google.gson.JsonObject" %&gt; &lt;%@page import="org.codehaus.jettison.json.JSONObject"%&gt; &lt;% String jsonData = request.getParameter("jsonData"); JSONObject j =new JSONObject(jsonData); String mobile = j.getAttribute("mobile"); //error occures here %&gt; </code></pre> <p>And i get error</p> <pre><code>type Exception report message An exception occurred processing JSP page /ProfileUser.jsp at line 15 description The server encountered an internal error that prevented it from fulfilling this request. exception org.apache.jasper.JasperException: An exception occurred processing JSP page /ProfileUser.jsp at line 15 12: &lt;% 13: String jsonData = request.getParameter("jsonData"); 14: //JONObject userinfo = (JSONObject) new JSONTokener(jsonData).nextValue(); 15: JSONObject j =new JSONObject(jsonData); 16: String mobile = j.getString("mobile"); 17: %&gt; 18: &lt;!DOCTYPE html&gt; Stacktrace: org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:568) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:470) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) javax.servlet.http.HttpServlet.service(HttpServlet.java:728) root cause java.lang.NullPointerException org.codehaus.jettison.json.JSONTokener.more(JSONTokener.java:89) org.codehaus.jettison.json.JSONTokener.next(JSONTokener.java:99) org.codehaus.jettison.json.JSONTokener.nextClean(JSONTokener.java:153) org.codehaus.jettison.json.JSONObject.&lt;init&gt;(JSONObject.java:168) org.codehaus.jettison.json.JSONObject.&lt;init&gt;(JSONObject.java:266) org.apache.jsp.ProfileUser_jsp._jspService(ProfileUser_jsp.java:75) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) javax.servlet.http.HttpServlet.service(HttpServlet.java:728) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334) javax.servlet.http.HttpServlet.service(HttpServlet.java:728) </code></pre> <p>How can get this data in jsp? Thank you.</p>
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