Passing the JSON Array to the servlet

[RaviNada Kiran]

Hi Ranchers ,

Can you please help me how can i retrieve the JSONArray Object inside my servlet.

JSONArray arrayObj=new JSONArray();
   arrayObj.add("MCA");
   arrayObj.add("Amit Kumar");
   arrayObj.add("19-12-1986");
   arrayObj.add(24);
   arrayObj.add("Scored");

I am passing this arrayObj inside the send () using AJAX.

[Sagar Rohankar]

Convert jsonObj to String type using toString method and send it to the client with content-type as “text/xml” or “text/plain”.

HTH

[RaviNada Kiran]

After getting the Object in the form of toString() inside the servlet . How can i retrieve each element on that Object ?

I read about eval() but confused.

How can i retrieve each project of the Object??

[RaviNada Kiran]

I got it. Thanks .

[Sagar Rohankar]

Sorry, I posted "Server to client" way, Here is "client to server" mode


• Create jsonObj JavaScript object
• Use “POST” HTTP method in the open method of the XMLHttpRequest object
• Pass jsonObj JavaScript object in the send method of XMLHttpRequest object

var carAsJSON = jsonObj.stringify(car);
xmlHttp.open("POST", url, true);
xmlHttp.onreadystatechange = handleStateChange;
xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
xmlHttp.send(carAsJSON)

look for JSON.stringify();

[RaviNada Kiran]

Sagar , thanks .

But you did not answer my question . My question is after sending the JSONArray on to the send() with AJAX .
How can the servlet extract each property or element of the Object??
strangely , What you have posted is my question actually .

[Sagar Rohankar]

We're confusing each other

RaviNada Kiran wrote:
How can the servlet extract each property or element of the Object??

If you have a JSON string at server side, like "{key:value}" and you want to extract value/object then,

Create an JSONObject using JSONObject(String) constructor and use JSONObject#get(key) method.

[RaviNada Kiran]

"and use JSONObject#get(key) method"

This is what i was looking for .Thanks Again.

[Sagar Rohankar]

Welcome