HTTP 状态 405 - 不支持请求方法“POST"(Spring MVC) [英] HTTP Status 405 - Request method 'POST' not supported (Spring MVC)
问题描述
我收到此错误:HTTP 状态 405 - 不支持请求方法POST"
我想做的是制作一个带有下拉框的表单，该表单根据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，应该运行 .jsp 页面中的 onChange 函数，然后提交的页面再次加载 customerName 中的相应值代码>customerCountry 框.
What I am trying to do is make a form with a drop down box that get populated based on the other value selected in another drop down box. For example when I select a name in the customerName box the onChange function in the .jsp page should be run and the page submitted then loaded again with the corresponding values in the customerCountry box.
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东西.这是我的代码的相关部分:
however I'm getting this HTTP Status 405 error. I have searched the internet for a solution but haven't been able to find anything that helped. Here is the relevant parts of my code:
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";
}
}
我怎么会收到这个错误?任何帮助将非常感激！谢谢
How come I get this error? Any help would be much appreciated! Thanks
编辑:将 hasId 更改为 hasCustomerName.我仍然收到 HTTP Status 405 - Request method 'POST' not supported 错误.
Changed hasId to hasCustomerName. I still get the HTTP Status 405 - Request method 'POST' not supported error though.
注释掉 setFalse 函数中导致错误的行
Commented out the line in the setFalse function that was causing the error
//D
推荐答案
我发现了导致 HTTP 错误的问题.
I found the problem that was causing the HTTP error.
在由 Save 按钮触发的 setFalse() 函数中，我的代码试图提交包含该按钮的表单.
In the setFalse() function that is triggered by the Save button my code was trying to submit the form that contained the button.
function setFalse(){
document.getElementById("hasId").value ="false";
document.deliveryForm.submit();
document.submitForm.submit();
当我删除 document.submitForm.submit(); 它工作:
function setFalse(){
document.getElementById("hasId").value ="false";
document.deliveryForm.submit()
@Roger Lindsjö 感谢您发现我没有传递正确参数的错误！
@Roger Lindsjö Thank you for spotting my error where I wasn't passing on the right parameter!
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