请问错误是指data数据为空吗，接着没有头绪了..

而且我想问js文件代码语法是jquery吧，不是需要引入jquery CDN文件这些吗？

我在idea写shopOperation.js代码很多警告，比如shop.shopName = $('#shop-name').val();会有unresolved funtion or method警告

还有最后想问的是看了其他问答，你在回答下给的代码都和视频不一样啊，你给的是后面章节优化过的代码啊，这个有点不太方便我们学习吧（苦笑）？

shopOperation.js代码
/**
 *
 */
$(function () {
    var initUrl = '/o2o/shopadmin/getshopinitinfo';
    var registerShopUrl = '/o2o/shopadmin/registershop';

    getShopInitInfo();
    function getShopInitInfo() {
        $.getJSON(initUrl,function (data) {
            if(data.success){
                var tempHtml = "";
                var tempAreaHtml = "";
                data.shopCategoryList.map(function (item, index) {
                    tempHtml +='<option data-id="' +item.shopCategoryId
                        +'">'+item.shopCategoryName +'</option>';
                });
                data.areaList.map(function (item,index) {
                    tempAreaHtml +='<option data-id="' +item.areaId
                        +'">'+item.areaName +'</option>';
                });
                $('#shop-category').html(tempHtml);
                $('#area').html(tempAreaHtml);
            }
        });
        $('#submit').click(function () {
            var shop ={};
            shop.shopName = $('#shop-name').val();
            shop.shopAddr = $('#shop-addr').val();
            shop.phone = $('#shop-phone').val();
            shop.shopDesc = $('#shop-desc').val();
            shop.shopCategory = {
                shopCategoryId:$('#shop-category').find('option').not(function () {
                    return !this.selected;
                }).data('id')
            };
            shop.area = {
                areaId:$('#area').find('option').not(function () {
                    return !this.selected;
                }).data('id')
            };
            var shopImg = $('#shop-img')[0].files[0];
            var formData = new FormData();
            formData.append('shopImg',shopImg);
            formData.append('shpStr',JSON.stringify(shop));

            var verifyCodeActual =$('#j_captcha').val();
            if(!verifyCodeActual){
                $.toast('请输入验证码！');
                return;
            }
            formData.append('verifyCodeActual',verifyCodeActual);

            //传数据到后台
            $.ajax({
                url:registerShopUrl,
                type : 'POST',
                data:formData,
                contentType:false,
                processData:false,
                cache:false,
                success:function (data) {
                    if(data.success){
                        $.toast('提交成功');
                    }else {
                        $.toast('提交失败!'+data.errMsg);
                    }
                    //不管成功还是失败，提交页面后会再更换验证码
                    $('#capcha_img').click();
                }
            })
        })
    }
});