Question

第一种方法：

@RequestMapping(value = "/api/version/products", method = RequestMethod.GET)
public ModelAndView getAllProducts() throws IOException {
    List<Product> products = productService.findAllProducts();

    ModelAndView model = new ModelAndView("main");
    model.addObject("products", products);

    return model;
}

第二种方法：

    @RequestMapping(value = "/api/version/products/{id}", method = RequestMethod.DELETE)
public String deleteProduct(@PathVariable String id) throws IOException {

    Product productToDelete = productService.findById(id);
    if (productToDelete != null) {
        productService.deleteProduct(id);
    }

    return "redirect:/api/version/products";
}

DELETE请求后我收到了这条消息：

HTTP状态405 - 不支持请求方法“DELETE”

第三种方法正常工作：

@RequestMapping(value = "/api/version/products", method = RequestMethod.POST)
public String addProduct(@RequestParam String name, @RequestParam String price) throws IOException {

    Product product = new Product();
    product.setName(name);
    product.setPrice(new BigDecimal(price));
    productService.saveProduct(product);

    return "redirect:/api/version/products";
}

Answer 1

1）尝试使用与DELETE处理程序相同的URL路径添加GET请求处理程序（重定向到某些其他页面或其他内容）

@RequestMapping(value = "/api/version/products/{id}", method = RequestMethod.GET)
    public String getProduct(@PathVariable String id) throws IOException {


        return "redirect:/";
    }

我曾经遇到过这样的问题，这解决了它

2）尝试：＆＃34; api / version / products / {id}＆＃34;而不是＆＃34; / api / version / products / {id}＆＃34;

Answer 2

您可以使用AJAX调用void删除方法，然后在成功后重定向到所需的页面。

您将需要JQuery依赖项和简单的js文件引用来调用它……

类似的东西：

$('.deleteProductButton').on('click', function () {
                 var productId = $(this).attr('data-product-id');                
                 $.ajax({
                        type : "DELETE",
                        url : "/api/version/products/"+ productId,
                        success: function (result) {   
                            console.log(result);  
                            window.location = '/api/version/products'; // redirect          
                        },
                        error: function (e) {
                            console.log(e);
                        }
                    });

            });  

@RequestMapping(value = "/api/version/products/{id}", method = RequestMethod.DELETE)
public void deleteProduct(@PathVariable String id) throws IOException {

    Product productToDelete = productService.findById(id);
    if (productToDelete != null) {
        productService.deleteProduct(id);
    }

}

DELETE后重定向

2 个答案: