$.ajax()传递参数后台controller接收不到的问题

Question

我想通过Ajax传递一个Pojo给Controller,但是controller接收不到数据

    下面是Ajax代码片

 $.ajax({
        url: basePath + "update.action",
        method:"post",
        dataType:"json",
        contentType: "application/json",
        data:JSON.stringify({
            cookId: $("#edit_cook_id").val,
            cookName: $("#edit_cookName").val,
            cookFlavor: $("#edit_cookFlavor").val,
            cookRepertory: $("#edit_cookRepertory").val,
            cookPrice: $("#edit_cookPrice").val,
            cookType: $("#edit_cookType").val
        }),
        success: function (data) {
            if (data > "0") {
                alert("客户信息更新成功！");
            } else {
                alert("客户信息更新失败！");
            }
            window.location.reload();
        },
        error:function () {
            alert("客户信息更新失败! ");
        }
    });

接下来是Controller

@RequestMapping(value = {"update"} ,method = { RequestMethod.POST })
@ResponseBody
public Long update(@RequestBody CookBook cookBook) {

    System.out.println("==============================================");
    System.out.println(cookBook);

    Long aLong = restaurantService.updateCook(cookBook);
    return aLong;
}

这是打印语句

CookBook{cookId=0, cookName='null', cookFlavor='null', cookRepertory=0, cookPrice=0, cookType='null'}

异常是说
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE cook_id = 0' at line 4

找了一天问题了，苦恼

Answer 1

这个是说你的sql（数据库）查询语句有语法问题，看你发的问题是和前段有关，应该是你没明白错误报告的含义吧。
你可以把'where cook_id = 0' _所在的那一句截图发上来，我给你看看语法错误，或者直接放到数据库里去执行以下试试