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一尘不染

HTTP状态405-不支持请求方法“ POST”（Spring MVC）

hibernate

我收到此错误： HTTP Status 405 - Request method 'POST' not supported

我正在尝试做的是创建一个带有下拉框的表单，该表单会根据在另一个下拉框中选择的其他值进行填充。例如，当我在customerName框中选择一个名称时，onChange应运行.jsp页面中的函数，然后提交提交的页面，然后在customerCountry框中再次加载相应的值。

但是我收到此HTTP状态405错误。我在互联网上搜索了解决方案，但找不到任何有帮助的方法。这是我的代码的相关部分：

jsp页面的一部分

<html>
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
        <title>Insert title here</title>
            <style>
            .error { color: red; }
            </style>

        <script>
            function repopulate(){  
                document.deliveryForm.submit();
            }

            function setFalse(){
                document.getElementById("hasId").value ="false";
                document.deliveryForm.submit();
                // document.submitForm.submit(); (This was causing the error)

            }
        </script>

    </head>
    <body>

        <h1>Create New Delivery</h1>

        <c:url var="saveUrl" value="/test/delivery/add" />
        <form:form modelAttribute="deliveryDtoAttribute" method="POST" action="${saveUrl}" name="deliveryForm">
            <table>


                <tr>
                    <td><form:hidden id="hasId" path="hasCustomerName" value="true"/></td>
                </tr>

                <tr>
                    <td>Customer Name</td>
                    <td><form:select path="customerName" onChange="repopulate()">
                        <form:option value="" label="--- Select ---" />
                        <form:options items="${customerNameList}" />
                        </form:select>
                    </td>
                    <td><form:errors path="customerName" cssClass="error" /></td>
                </tr>

                <tr>
                    <td>Customer Country</td>
                    <td><form:select path="customerCountry">
                        <form:option value="" label="--- Select ---" />
                        <form:options items="${customerCountryList}" />
                        </form:select>
                    </td>
                    <td><form:errors path="customerCountry" cssClass="error" /></td>
                </tr>

        </form:form>

        <form:form name="submitForm">
        <input type="button" value="Save" onClick="setFalse()"/>
        </form:form>

    </body>
</html>

控制器的一部分：

@RequestMapping(value = "/add", method = RequestMethod.GET)
    public String getDelivery(ModelMap model) {
        DeliveryDto deliveryDto = new DeliveryDto();

        model.addAttribute("deliveryDtoAttribute", deliveryDto);
        model.addAttribute("customerNameList",
                customerService.listAllCustomerNames());
        model.addAttribute("customerCountryList", customerService
                    .listAllCustomerCountries(deliveryDto.getCustomerName()));
        return "new-delivery";
    }

    // I want to enter this method if hasId=true which means that a value in the CustomerName 
    // drop down list was selected. This should set the CountryList to the corresponding values 
    // from the database. I want this post method to be triggered by the onChange in the jsp page

    @RequestMapping(value = "/add", method = RequestMethod.POST, params="hasCustomerName=true")
    public String postDelivery(
            @ModelAttribute("deliveryDtoAttribute") DeliveryDto deliveryDto,
            BindingResult result, ModelMap model) {


            model.addAttribute("deliveryDtoAttribute", deliveryDto);

            model.addAttribute("customerNameList",
                    customerService.listAllCustomerNames());
            model.addAttribute("customerCountryList", customerService
                    .listAllCustomerCountries(deliveryDto.getCustomerName()));

            return "new-delivery";
    }

    // This next post method should only be entered if the save button is hit in the jsp page

    @RequestMapping(value = "/add", method = RequestMethod.POST, params="hasCustomerName=false")
    public String postDelivery2(
            @ModelAttribute("deliveryDtoAttribute") @Valid DeliveryDto deliveryDto,
            BindingResult result, ModelMap model) {

        if (result.hasErrors()) {

            model.addAttribute("deliveryDtoAttribute", deliveryDto);

            model.addAttribute("customerNameList",
                    customerService.listAllCustomerNames());
            model.addAttribute("customerCountryList", customerService
                    .listAllCustomerCountries(deliveryDto.getCustomerName()));

            return "new-delivery";
        } else {

            Delivery delivery = new Delivery();

            //Setters to set delivery values

            return "redirect:/mis/home";
        }

    }

我怎么会得到这个错误？任何帮助将非常感激！谢谢

编辑： 更改hasId为hasCustomerName。我仍然收到HTTP Status 405 - Request method 'POST' not supported错误。

EDIT2： 注释掉setFalse导致错误的函数中的行

// D


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2020-06-20

共1个答案

一尘不染

我发现了导致HTTP错误的问题。

在“ setFalse()保存”按钮触发的函数中，我的代码试图提交包含该按钮的表单。

        function setFalse(){
            document.getElementById("hasId").value ="false";
            document.deliveryForm.submit();
            document.submitForm.submit();

当我删除document.submitForm.submit();它的作品：

        function setFalse(){
            document.getElementById("hasId").value ="false";
            document.deliveryForm.submit()

@RogerLindsjö感谢您发现我没有传递正确参数的错误！

2020-06-20