404 error while populating the collection onto JSP page

I was trying to populate collection(collection of items) from servlets to my jsp page..

In my servlet code I store the items in collection:

String itemsJson = new Gson().toJson(items);
        response.setContentType("application/json");
        response.setCharacterEncoding("UTF-8");
        response.getWriter().write(itemsJson);

In my jsp page I am tryin to populate the items onto a jquery resizable box.The code is as follows:

$(document).ready(function() {
    $("#resizable").resizable();
    $.getJSON('resizable', function(itemsJson) {
        var $resizable = $('#resizable');
        $.开发者_如何转开发each(itemsJson, function(index, itemcatalog) {
            $('<option>').text(itemcatalog.item).appendTo($resizable);
        });
    });
});

<div class="demo">  
<div id="resizable" class="ui-widget-content">
<h3 class="ui-widget-header">Item List</h3>
 <option></option>

Then the URL is plain wrong. You're using a relative URL in $.getJSON()

$.getJSON('resizable', function(itemsJson) {

Imagine that this code is been placed in a JSP file which is opened by the following URL

http://localhost:8080/context/pages/page.jsp

then you need to ensure that the servlet is available on

http://localhost:8080/context/pages/resizable

JavaScript/jQuery will namely map relative URLs to the document's base URL.

Or when the servlet is actually listening on

http://localhost:8080/context/resizable

(test it by opening its address straight in browser address bar)

then you need to change the $.getJSON() URL as follows

$.getJSON('../resizable', function(itemsJson) {

or (domain-relative)

$.getJSON('/context/resizable', function(itemsJson) {

or (works only if this is inside JSP)

$.getJSON('${pageContext.request.contextPath}/resizable', function(itemsJson) {

or to move the JSP file to

http://localhost:8080/context/page.jsp

Or if the URL is actually correct, then it simply means that the servlet failed to startup. Read the server logs for the exception/stacktrace and fix the code accordingly. Or maybe the servlet is not mapped on an URL at all.