SSM整合增删改查写到改时出现400错误

SSM整合，增删改查，写到改时出现400错误
Controller代码

//跳转到修改页面
    @RequestMapping("/toUpdateGoods")
    public String toUpdateGoods(int id,Model model) {
        Goods goods = goodsService.queryGoodsById(id);
        System.out.println(goods);
        model.addAttribute("QGoods",goods);
        return "updateGoods";
    }

    //修改书籍
    @RequestMapping("/updateGoods")
    public String updateGoods(Model model, Goods good) {
        System.out.println("updateGoods=>"+good);
        goodsService.updateGoods(good);
        Goods goods = goodsService.queryGoodsById(good.getGoodsID());
        model.addAttribute("Goods", goods);
        return "redirect:/Goods/allGoods";
    }

HTML代码
allGoods.jsp

                        <tr>
                            <td>${goods.goodsID}td>
                            <td>${goods.goodsName}td>
                            <td>${goods.goodsPrice}td>
                            <td>${goods.goodsQuantity}td>
                            <td>
                                <a href="${pageContext.request.contextPath}/Goods/toUpdateGoods?id=${goods.goodsID}">更改a> |
                                <a href="${pageContext.request.contextPath}/Goods/del/${goods.goodsID}">删除a>
                            td>
                        tr>

updateGoods.jsp

="${pageContext.request.contextPath}/Goods/updateGoods" method="post">
        ="hidden" name="goodsID" value="${goods.getGoodsID()}"/>
        货物名称：="text" name="goodsName" value="${goods.goodsName()}"/>
        货物单价：="text" name="goodsPrice" value="${goods.goodsPrice()}"/>
        货物数量：="text" name="goodsQuantity" value="${goods.goodsQuantity() }"/>
        ="submit" value="提交"/>
    

是访问页面报错还是请求报错，你得说清楚一点

400错误， 要么是你前端JSP里面的跳转地址错误了。
要么是你后端controller 没有加注解@RestController

400 是客户端错误，看看是不是请求的类型不对，或者参数少了，或者参数类型错了

 public String updateGoods(Model model, @RequestBody Goods good) {