异步验证数据是否存在

宋建勇

<script type="text/javascript">function loadXMLDoc(value,appId){$.ajax({   type: "POST",   url: "${basePath}/app/developers/ajaxCheckCanvasPageUrl",   data: "value="+value+"&appId="+appId,   success: function(msg){     alert( "Data Saved: " + msg );   } });}$(function() {  var _area = $('input#publicCanvasUrl');  _area.bind('keyup change', function() { //绑定keyup和change事件  loadXMLDoc($("#publicCanvasUrl").val(), $("#appId").val()); });  });</script>