CODEWITHSUNDEEP
jqueryjsonjsp
ajay_t
ajay_t

Reputation: 2385

request.parameter(String) returns null when called from jquery

I am developing web application.
I am sending json string from one page to another. I have used jquery to send the post data. In the target page I want to retrieve the same data. But I am getting the null value there.

my page which posts json string to page is:

$(document).ready(function () {

    $.post("./ProfileUser.jsp",{jsonData:jsonstr});
    $(location).attr('href',"./ProfileUser.jsp");
});

And in the page ProfileUser.jsp

<%
String jsonData = request.getParameter("jsonData");
String mobile;
if(jsonData == null)  mobile = "something went wrong";
else {
    JSONObject j  =new JSONObject(jsonData);
    mobile = j.getString("mobile");
}
%>

I am getting output as Something went wrong which should be mobile number from the database.
How should I get the json data in jsp?

Thank you

Upvotes: 1

Views: 575

Answers (1)

Rohan Kumar
Rohan Kumar

Reputation: 40639

First you need to add the third parameter as json in $.post() like,

$.post("./ProfileUser.jsp",{jsonData:jsonstr},'json');

Secondly, in JSP try it like,

JSONObject json      = new JSONObject();
if(!jsonData) {
   json.put("mobile", "111111");
}
else{
   //something;
}
response.setContentType("application/json");
response.getWriter().write(json.toString());

Upvotes: 1

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