Sending jquery array and receiving it in jsp

Question

I stored some integer value in an array called myArray. I want to use Ajax to send myArray to a jsp file (file.jsp). I'm having trouble retrieving the data in jsp, as I always get null. Here is my code:

var request = $.ajax({
   url: "file.jsp",
   type: "POST",
   data: {myArray:myArray},
   dataType: "html"
});

request.done(function(msg) {
  $("#abc").html( msg );
});
request.fail(function(jqXHR, textStatus) {
  alert( "Failed " + textStatus );
});

file.jsp

String myArray = request.getParameter("spArray");

My question is: How can I successfully pass myArray from jquery-Ajax and retrieve it in file.jsp?

bdfios · Accepted Answer · 2013-03-06 15:44:25Z

1

I think I figured it out. I converted array to string (ie myArray.toString();) and sent through.

Now I have:

var request = $.ajax({
  url: "file.jsp",
  type: "POST",
  data: {myArray:myArray.toString()},
  dataType: "html"
});

and picked it up in file.jsp as

String myArray = request.getParameter("spArray").toString();

answered Mar 6, 2013 at 15:44

bdfios

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Comments

Atep · Accepted Answer · 2013-03-06 14:39:13Z

0

try change this parametrs in ajax configuration:

dataType:       'json',
headers:        {'Content-type' : "application/json; charset=utf-8"},

answered Mar 6, 2013 at 14:39

Atep

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4 Comments

bdfios Over a year ago

in jsp, value is still null

Atep Over a year ago

hmm, and now? data: JSON.stringify({myArray:myArray}),

bdfios Over a year ago

It doesn't seem to execute the ajax portion of the code. Here is what I have now var request = $.ajax({ url: "file.jsp", type: "POST", dataType: 'json', data: JSON.stringify({myArray:myArray}), ContentType : "application/json; charset=utf-8" });

Atep Over a year ago

I tried this:

var myArray = [1,2,3];  $.ajax({ url: "file.jsp", type: "POST", dataType: 'json', data: JSON.stringify({myArray:myArray}), ContentType : "application/json; charset=utf-8" });

And the ajax was send and output is: '{"myArray":[1,2,3]}' try look at firebug

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