使用Thymeleaf

Question

我想将多个模型属性解析为控制器的th：value。我这样做是为了在表单中传递模型之前在同一页面中传递模型。这以前曾经奏效，但现在没有奏效

我的控制器

RequestMapping(value = "typeitem/{id}/item/tambah", method = RequestMethod.GET)
    private String tambahItem(Model model, @PathVariable(value = "id") long id) {
        ItemModel item = new ItemModel();
        TypeItemModel typeSelected = typeItemService.getTypeItemById(id);
        FormItemWrapper itemWrapper = new FormItemWrapper();
        model.addAttribute("item", item);
        model.addAttribute("itemWrapper", itemWrapper);
        model.addAttribute("typeItem", typeSelected);
        return "add-material";
    }

    @RequestMapping(value = "typeitem/{id}/item/tambah", params = { "addEntry" }, method = RequestMethod.POST)
    private String addEntrySerialItem(Model model, @ModelAttribute TypeItemModel typeItem,
            @ModelAttribute ItemModel item, @ModelAttribute FormItemWrapper itemWrapper) {

        for (int i = 0; i < 3; i++) {
            itemWrapper.addPengalamanToList(new SerialObject());
        }
        model.addAttribute("item", item);
        model.addAttribute("itemWrapper", itemWrapper);
        model.addAttribute("cont", 3);
        model.addAttribute("typeItem", typeItem);
        return "add-material";
    }

我的HTML

<div class="blankspace" id="tambahDIV">
    <form th:action="@{'/typeitem/'+${typeItem.id}+'/item/tambah'}"
        method="POST" th:object="${item}">

        <div class="boxContainer2" style="overflow-x: auto;">
            <h4 style="display: inline; margin-left: 10px">Tambah Material
                Baru</h4>
            <hr>
            <div class="col-md-12"></div>
            <div class="form-row">
                <div class="form-group col-md-12">
                    <label for="itemName">Part</label> <input type="text"
                        class="form-control"
                        th:text="${typeItem.itemName} + ' - ' + ${typeItem.kategori} + ' - ' + ${typeItem.spesifikasi} + ' - ' + ${typeItem.type}"
                        disabled>
                .........Some Code.......
                <div class="form-group col-md-4">
                    <label for="merek">Jumlah</label> <input type="number"
                         th:field="${itemWrapper.serialCounter}" class="form-control" required>

                </div>

                **<div class="form-group col-md-2">
                    <button type="submit" class="btn btn-success btn-large"
                        th:value="${item}+${typeItem}+${itemWrapper}"
                        style="margin-top: 30px" name="addEntry">Set</button>
                </div>
                <div class="form-group col-md-6"></div>**

                ......Some Code..........
    </form>
</div>
</div>
</div>

如果您在“ addEntrySerialitem”中看到我的代码，则我得到@ModelAttribute TypeItem typeItem和@ModelAttribute FormItemWrapper itemWrapper的空值

我需要从HTML中解析itemWrapper和typeItem到Controller中的addEntrySerialitem，以重用它们的值。我的@ModelAttribute没有从HTML接收任何值（请参阅“设置”按钮中的HTML部分）