表单搜索无法使用thymeleaf在Spring Boot项目中搜索正确的大小写

Question

我无法搜索某些情况。

示例：当我键入“ 5”时，它在HTML页面上不返回任何结果，但是当我尝试“ 1”时，它返回“ product15”吗？为什么“ 5”无法搜索？

我的错误是什么？

以及如何在URL中显示我的所有参数。当我打开'localhost：8080'时，URL中没有默认的参数，但是它们仍然运行良好。

请帮帮我！

<form class="search" th:action="@{/}" th:object="${productVM}" method="get">
    <input type="search" id="search" th:field="*{name}" placeholder="search">
    <button type="submit" class="search-button"><span class="icon"><i class="fa fa-search"></i></span></button>
</form>

 @GetMapping(value = "")
    public String home(
            Model model,
            @Valid @ModelAttribute("productVM")ProductVM productVM,
            @RequestParam(name = "page", required = false, defaultValue = "1") Integer page,
            @RequestParam(name = "size", required = false, defaultValue = "10") Integer size,
            @RequestParam(name = "sortByPrice", required = false) String sort
            )
    {

        HomeVM homeVM = new HomeVM();

//        set view category
        List<Category> categoryList = categoryService.getListAllCategories();
        List<CategoryVM> categoryVMList = new ArrayList<>();

        for(Category category : categoryList) {
            CategoryVM categoryVM = new CategoryVM();
            categoryVM.setId(category.getId());
            categoryVM.setName(category.getName());
            categoryVMList.add(categoryVM);
        }

        Pageable pageable = PageRequest.of(page,size,sort1);
        Page<Product> productPage = null;

        if (productVM.getName() != null && !productVM.getName().isEmpty())
        {
            productPage = productService.getListProductByProductNameContaining(pageable,productVM.getName().trim());
        }
        else
            productPage = productService.getListProductByProductNameContaining(pageable,null);

        List<ProductVM> productVMList = new ArrayList<>();
        for (Product product : productPage.getContent())
        {
            ProductVM productVM1 = new ProductVM();
            productVM1.setId(product.getId());
            productVM1.setName(product.getName());
            productVM1.setPrice(product.getPrice());
            productVM1.setMainImage(product.getMainImage());
            productVM1.setCreatedDate(product.getCreatedDate());

            productVMList.add(productVM1);
        }

//        set view

        homeVM.setCategoryVMList(categoryVMList);
        homeVM.setProductVMList(productVMList);
        model.addAttribute("vm",homeVM);
        model.addAttribute("page",productPage);
        return "home";
    }

我的存储库：

    @Query("SELECT p FROM product p " +
            "WHERE (:productName IS NULL OR UPPER(p.name) LIKE CONCAT('%',UPPER(:productName),'%'))")
    Page<Product> getListProductByProductNameContaining(Pageable pageable, @Param("productName") String productName);

我的服务：

    public Page<Product> getListProductByProductNameContaining(Pageable pageable, String productName){
        return productRepository.getListProductByProductNameContaining(pageable,productName);
    }