方法一：

分别获取所需数据元素,DOM结构外层不用包form标签（适用于数据量少，数据元素分散于整个页面）

$.ajax({type: 'POST',url:'',data: {residence:[$('#region_1').val(),$('#region_2').val(),$('#region_3').val()],address:$('#address').val()},dataType: 'json',success: function(data){},error:function(err){}});
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方法二：

需要包裹form标签（适用于数据量大，元素集中）

function AddHandlingFeeToRefund(){var AjaxURL= "../OrderManagement/AjaxModifyOrderService.aspx"; alert($('#formAddHandlingFee').serialize());$.ajax({type: "POST",dataType: "html",url: AjaxURL + '?Action=' + 'SubmitHandlingFee' + '&OrderNumber=' + $.trim($("#<%=this.txtOrderNumber.ClientID %>").val()),data: $('#formAddHandlingFee').serialize(),success: function (result) {var strresult=result;alert(strresult);//加载最大可退金额$("#spanMaxAmount").html(strresult);},error: function(data) {alert("error:"+data.responseText);}});}
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以下就是HTML代码

<form id="formAddHandlingFee" name="formAddHandlingFee" enctype="multipart/form-data" onsubmit="AddHandlingFeeToRefund()"><table id="AddHandlingFee" class="Wfill"><tr><td><asp:Literal ID="UI_Amount" runat="server" Text="处理费用" meta:resourcekey="HandlingFeeAmount" /></td><td><input type="text" id="txtHandlingFeeAmount" name="txtHandlingFeeAmount" class="{required:true,number:true}" maxlength="12" /></td></tr><tr><td><asp:Literal ID="UI_HandlingFeeType" runat="server" Text="费用类型" meta:resourcekey="HandlingFeeHandlingFeeType" /></td><td><crmweb:HtmlSelectControl ID="HandlingFeeType" EnumTypeName="DX.OMS.Model.Common.HandlingFeeType,DX.OMS.Model.Common" EmptyValue="" EmptyText="Select" runat="server" class="text {required:true}"/></td></tr><tr><td><asp:Literal ID="UI_Notes" runat="server" Text="备注" meta:resourcekey="HandlingFeeNotes" /></td><td><textarea id="txtNotes" name="txtNotes" class="text {required:true}" cols="22" rows="2" maxlength="100"></textarea></td></tr><tr><td></td><td><input id="Submit1" type="submit" value="添加处理费" /><asp:Button ID="Button1" runat="server" Text="添加处理费" OnClientClick="javascript:AddHandlingFeeToRefund()" /></td></tr></table></form>复制代码