JQuery 解析JSON数据的方法

$.ajax({
	  url: url,
	  dataType: 'json',
	  success: function(data) {
		  var jsonData = $.parseJSON(data);
		  $.each(data,function(i,item){
							   if(item.appName == appName){
									alert(item.deployTime);
									return false;
								}
							  });
	  }
	});
	
	
	$.getJSON(artooUrl, function(data){
								 $.each(data,function(i,item){
													  	if(item.appName == appName){
															alert(item.deployTime);
															return false;
														}
													  });
								 });

		var changeFreeUrl="changeFree.txt";
		$.getJSON(changeFreeUrl, function(data){
									var trcontent = "<tr><td colspan='3'></td></tr>";
									
									$.each(data, function(i,item){ trcontent += "<tr><td>aaa</td><td>bbb</td><td>bbb</td></tr>";
													  });
									$('#cftable').html(trcontent);
									$('#todispaly').css('display','block');
									return false;
								 });