prototype中的ajax非同步載入

標籤：

jquery前台處理：var param = {a:a};$.post("*.do",param,function(data) {    var columHtml =  "";    $.each(data, function(i, item) {columHtml = columHtml + "<option value=‘"+item[0]+"‘>"+item[1]+"</option>"    });            $("#columnid").append(columHtml);  });後台：返回json 格式=========================================================================================================================prototype.js使用ajax級聯:後台返回json格式的list,前台使用ajax 處理json 和 list 
前台頁面：<select name="id" id="id"  onchange="aa(this.value)"><option value="0">請選擇</option></select>
js方法function  aa(id){function onSuccess(response) {var data = response.responseText.evalJSON();  var colList = data.dataList;var columHtml =  "";for(var i = 0;i<colList.length;i++){columHtml = columHtml + "<option value=‘"+colList[i].id+"‘>"+colList[i].colName+"</option>"}   alert(columHtml);var a = $(‘columnid‘);alert(a.innerHTML);  $(‘columnid‘).innerHTML = columHtml;        }function onFailure(response) { alert(‘資料請求異常‘);        }var params = "&websiteId="+websiteid;ajax = new Ajax.Request(‘a.do‘,{method: ‘POST‘,asynchronous: true,parameters:params,onSuccess : onSuccess,onFailure : onFailure });     }
後台action處理：JSONObject jsonObject = new JSONObject();jsonObject.put("dataList", maplist);  this.getPrintWriter(jsonObject);
xml處理：<action name="a" class="AAction"  method="a"><result name="success" type="json"></result></action>

　　

prototype中的ajax非同步載入