//后台 [HttpPost] public JsonResult CheckStock(IEnumerable<pvIdsCount> pvIds) { } public class pvIdsCount { public int pvId { set; get; } public int count { set; get; } } //前台 $(document).ready(function () { $('#checkout').click(function () { var productIdCounntList = []; var allPvId = $(".productVariantIdAll"); $.each(allPvId, function (index, data) { var productIdCounnt = { pvId: data.getAttribute("data-Id"), count: data.getAttribute("data-Count")}; productIdCounntList.push(productIdCounnt); }); $.ajax({ url:"@Url.Action("CheckStock")", type:"POST", //复杂对象传值用Post， data: JSON.stringify ({ pvIds: productIdCounntList }), //SON.stringify ---must 用来序列化 dataType: "json", contentType: 'application/json; charset=utf-8', //must error: function () { alert("1"); }, success: function (data) { }