ajax each数组

function submitPurchase()
{
    var goods_obj = {};
    $("#goodsList tr").each(function(i){
        var goods_sn = $(this).find("td:eq(1)").text();
        var goods_number = $(this).find("td:eq(4)").text();
        var cost_price = $(this).find("td:eq(5)").text();

        goods_obj[i] = {goods_sn:goods_sn,goods_number:goods_number,cost_price:cost_price}
    })
    
    
    $.ajax({
        url:"/admin/create-purchase",
        type:"post",
        data:{act:"submit",data:goods_obj,supplier_id:<?=$this->supplier_id?>},
        success:function(ret)
        {
            alert(ret)
            /*var purchase_id = $.trim(ret);
            if(isNaN(purchase_id))
            {
                alert("登记采购信息失败，请稍候再试");
            }else{
                alert("登记成功");
                setCookie("purchase_goods","");
                location.href="/admin/view-purchase?purchase_id="+purchase_id;
            }*/
        }
    })
}

function commit(){
            
            var tijian_card=$("#tj_cart").html();
            var username=$("#tj_name").html();
            var sex=$("#tj_sex").html();
            var address=$("#tj_address").html();

            var goodsData = [];
            $("#yixuan tr").each(function(){

                var goods_id = $(this).attr("goods_id");
                var number = $(this).find("td.number").text();
                var medicine_name = $(this).find("td.medicine_name").text();
                var goods_price = $(this).find("td.goods_price").text();
                var goods_sn = $(this).attr("goods_sn");
                var dose_times = $(this).find("td.dose_times").text();
                var usage = $(this).find("td.usage").text();
                
                goodsData.push({goods_id:goods_id,number:number,medicine_name:medicine_name,goods_price:goods_price,goods_sn:goods_sn,usage:usage,dose_times:dose_times});

            })
            if(tijian_card!=""){
                if(order_id > 0)
                {
                //    openDialog();
                //    return;
                }
                $.ajax({
                    url:'__URL__/commit',
                    type:'post',
                    data:{username:username,sex:sex,address:address,tijian_card:tijian_card,goodsData:goodsData},
                    dataType:'json',
                    success:function(ret){
                        if(ret.info == "order_success")
                        {
                            order_id = ret.order_id;
                            openDialog();
                            $("#submitOrderBtn").attr('disabled',true);
                        }
                    }
                })
            }else{
                alert('请先验证卡号登陆在进行下单');
            }
        }