How to receive and parse a json data from jsp?

Question

I send a json from servlet like that

User profileUser = userService.get(id);
request.setAttribute("profileUser", profileUser);
JSONObject json = new JSONObject();
try {
    json.put("profileUser", profileUser);
} catch (JSONException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
}
response.setContentType("application/json");
response.getWriter().write(json.toString());

And in javascript in ajax call

$.ajax({
    cache : false,
    type : "GET",
    url : "UserServlet?id=" + userId,
    success : function(result) {
        alert(result.profileUser);
    }
});

The result of alert is giving me Entity.user but if I want to call result.profileUser.uuid or property of that user returns me undefined . Can anyone please help me?

What's the actual HTTP response?

SLaks
– SLaks

2016-10-10 15:42:18 +00:00
Commented Oct 10, 2016 at 15:42 — SLaks
– SLaks, Commented Oct 10, 2016 at 15:42
@SLaks 302 moved temporary

joesid
– joesid

2016-10-10 15:45:59 +00:00
Commented Oct 10, 2016 at 15:45 — joesid
– joesid, Commented Oct 10, 2016 at 15:45

Moshe Arad · Accepted Answer · 2016-10-11 14:06:01Z

1

If you're sending json to your Ajax client, then you need to specify that you're about to recieve json type. Like this:

$.ajax({
    cache : false,
    type : "GET",
    dataType : "json",
    url : "UserServlet?id=" + userId,
    success : function(result) {
        alert(result.profileUser);
    }
});

That will cause your success method to evaluate the result parameter as json object.

answered Oct 11, 2016 at 14:06

Moshe Arad

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Comments

Afsun Khammadli · Accepted Answer · 2016-10-10 17:38:30Z

0

Change your Ajax to following:

$.ajax({
    cache : false,
    type : "GET",
    url : "UserServlet?id=" + userId,
    success : function(profileUser) {
        alert(profileUser.uuid);
    }
});

answered Oct 10, 2016 at 17:38

Afsun Khammadli

2,0684 gold badges19 silver badges28 bronze badges

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