为啥不允许方法?
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【中文标题】为啥不允许方法?【英文标题】:Why method isn't allowed?为什么不允许方法? 【发布时间】:2022-01-19 01:42:13 【问题描述】:我为我的联系表单准备了一个剃须刀组件。 SubmitForm 方法如下所示:
private async Task<string> SubmitForm()
var json = Newtonsoft.Json.JsonConvert.SerializeObject(ContactFormModel);
var stringContent = new StringContent(json, System.Text.Encoding.UTF8, "application/json");
var response = await Http.PostAsync("/Contact/SendMessage", stringContent);
Logger.LogInformation("Executed PostAsync.");
Debug.Write("Executed PostAsync");
if (response.IsSuccessStatusCode)
var resultContent = response.Content.ReadAsStringAsync().Result;
return resultContent;
else
return "failed";
在第 5 行,它应该向“/Contact/SendMessage”发送一个发布请求。
The ContactController looks like:
namespace MannsBlog.Controllers.Web
[Route("[controller]")]
public class ContactController : Controller
private readonly IMailService _mailService;
private readonly ILogger<ContactController> _logger;
private readonly GoogleCaptchaService _captcha;
public ContactController(IMailService mailService,
ILogger<ContactController> logger,
GoogleCaptchaService captcha)
_mailService = mailService;
_logger = logger;
_captcha = captcha;
[HttpGet("")]
public IActionResult Index()
return View();
[HttpPost]
public IActionResult SendMessage([FromBody] ContactFormModel form)
try
if (ModelState.IsValid)
var spamState = VerifyNoSpam(form);
if (!spamState.Success)
_logger.LogError("Spamstate wasn't succeeded");
return BadRequest(new Reason = spamState.Reason );
if (!_captcha.Verify(form.Recaptcha))
throw new Exception("The submission failed the spam bot verification.");
else
_mailService.SendMail("ContactTemplate.txt", form.Name, form.Email, form.Subject, form.Message);
return Json(new success = true, message = "Your message was successfully sent." );
_logger.LogError("Modelstate wasnt valid");
return Json(new success = false, message = "ModelState wasnt valid..." );
catch (Exception ex)
_logger.LogError("Failed to send email from contact page", ex.Message);
return Json(new success = false, message = ex.Message );
但如果我执行它,我会收到 RequestMessage "
RequestMessage 方法:POST,RequestUri: 'https://saschamanns.de/Contact/SendMessage',版本:1.1,内容: System.Net.Http.StringContent,标头:请求上下文: appId=cid-v1:64d2a34b-4aea-4d0b-8163-a49082988533 请求 ID: |fec381c24e685e4b8eddd2b24064a1e4.a6d3a3ff85fe5c44。追踪父: 00-fec381c24e685e4b8eddd2b24064a1e4-a6d3a3ff85fe5c44-00 内容类型:应用程序/json; charset=utf-8 内容长度:572 System.Net.Http.HttpRequestMessage"
并且作为 ReasonPhrase “方法不允许”。
但是为什么呢?我该如何解决这个问题?
【问题讨论】:
【参考方案1】:您的网址有缺陷。两种选择:
Use Http.PostAsync("/Contact", stringContent); //no /SendMessage
或
-
在控制器中,使用
[HttpPost("SendMessage")]
还有来自 codereview 的一些不相关的建议:
不要使用.Result
:
//var resultContent = response.Content.ReadAsStringAsync().Result;
var resultContent = await response.Content.ReadAsStringAsync();
考虑 System.Text.Json
而不是 Newtonsoft。
当您使用Http.PostAsJsonAsync(...)
时,您可以一次性解决这两个问题。
【讨论】:
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