passing json array ajax

Question

Trying to pass a array using ajax call.

info = [];
info[0] = 'hi';
info[1] = 'hello';

$.ajax({
    type: "POST",
    data: {info: info, "action": "getPatientRecords"},
    url: "/mobiledoc/jsp/ccmr/webPortal/carePlanning/servicePatientmilestoneModal.jsp",
    success: function(msg) {
        $('.answer').html(msg);
    }
});

However when i try to catch it on the server side using : request.getParameter("info"); //Displays null**

Also, if i wish to send an array of arrays ? is it possible?

I tried using serialize however my IE throws error that serialize : object doesnt support this property i Did include jquery lib.

info['hi','hello']...use this insted of what you are using.thats an old wat to do go about arrays. — HIRA THAKUR
– HIRA THAKUR, Commented Jul 18, 2013 at 19:56
:if you got your answer,tick the answer you feel is correct. — HIRA THAKUR
– HIRA THAKUR, Commented Jul 30, 2013 at 9:21

Explosion Pills · Accepted Answer · 2013-07-18 19:57:33Z

10

You can use JSON.stringify(info) to create a JSON representation of the object/array (including an array of arrays). On the server side you should be able to get the string via getParameter and then unserialize it from JSON to create constructs JSP can use.

answered Jul 18, 2013 at 19:57

Explosion Pills

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HIRA THAKUR · Accepted Answer · 2013-07-18 19:57:44Z

2

Yes,It is Possible to send arrays.

var info_to_send = ['hi','hello'];

$.ajax({
    type: "POST",
    data: {info: info_to_send, "action": "getPatientRecords"},
    url: "/mobiledoc/jsp/ccmr/webPortal/carePlanning/servicePatientmilestoneModal.jsp",
    success: function(msg) {
        $('.answer').html(msg);
    }
});

answered Jul 18, 2013 at 19:57

HIRA THAKUR

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3 Comments

Shawn31313 Over a year ago

Why didn't you just use: var info = ['hi','hello'];?

user1908568 Over a year ago

Its displaying null at server side. System.out.println(request.getParameter("info")); //NULL

Shawn31313 Over a year ago

@MESSIAH (; Good Job.

Yogu · Accepted Answer · 2013-07-18 20:17:35Z

1

You can only provide strings in a request url.

You could encode the array like so:

info = JSON.stringify(info); 
// results in "['hi', 'hello']"

Then send it to the server, also JSON parse on the server.

You will need to go to http://www.json.org/ to get a Java implementation of JSON parsing.

edited Jul 18, 2013 at 20:17

Yogu

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answered Jul 18, 2013 at 20:00

Logan Murphy

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