使用 WebInvoke 在 WCF WebApi 中 POST 数据
我最近开始使用 WCF WebApi 创建 REST api。我遵循了 CodePlex 上提供的示例以及 文章系列,作者:Alex Zeitler。
我尝试创建一个通过 POST 接受数据的方法,如下所示:
[ServiceContract]
public class AuthenticateApi
{
[WebInvoke(UriTemplate = "", Method = "POST")]
public HttpResponseMessage<LoginModel> Post(LoginModel loginModel)
{
loginModel.IsValidated = true;
return new HttpResponseMessage<LoginModel>(loginModel);
}
}
这是我的实体:
public class LoginModel
{
public string Username { get; set; }
public string Password { get; set; }
public bool IsValidated { get; set; }
}
最后这是我在 Global.asax 中的配置:
public static void RegisterRoutes(RouteCollection routes)
{
routes.MapServiceRoute<AuthenticateApi>("login");
}
protected void Application_Start(object sender, EventArgs e)
{
RegisterRoutes(RouteTable.Routes);
}
当我尝试以这种方式使用 Fiddler 发布某些内容时:
Content-Type: application/json
Accept: application/json
{"Username": "mahdi", "Password":"123"}
Host: localhost:8181
我收到以下错误消息:
服务器在处理请求时遇到错误。例外情况 消息是“指定值具有无效的 HTTP 标头字符。 参数名称:name'.有关更多详细信息,请参阅服务器日志。例外情况 堆栈跟踪是:
at System.Net.WebHeaderCollection.CheckBadChars(字符串名称,布尔值 isHeaderValue) 在 System.Net.WebHeaderCollection.Add(字符串名称, 字符串值)位于 System.Collections.Specialized.NameValueCollection.Add(NameValueCollection 猫 System.ServiceModel.Activation.HostedHttpContext.HostedRequestContainer.System.ServiceModel.Channels.HttpRequestMessageProperty.IHttpHeaderProvider.CopyHeaders(WebHeaderCollection 标题)位于 System.ServiceModel.Channels.HttpRequestMessageProperty.get_Headers() 在 Microsoft.ApplicationServer.Http.Channels.HttpMessageEncodingRequestContext.ConfigureRequestMessage(消息 消息)中 F:\ codeplex \ wcf \ Http \ Src \ Microsoft.ApplicationServer.Http \ Microsoft \ ApplicationServer \ Http \ Channels \ HttpMessageEncodingRequestContext.cs:行 222 在 Microsoft.ApplicationServer.Http.Channels.HttpMessageEncodingRequestContext.get_RequestMessage() 在 F:\ codeplex \ wcf \ Http \ Src \ Microsoft.ApplicationServer.Http \ Microsoft \ ApplicationServer \ Http \ Channels \ HttpMessageEncodingRequestContext.cs:行 54 于 System.ServiceModel.Dispatcher.ChannelHandler.EnsureChannelAndEndpoint(RequestContext 请求)在 System.ServiceModel.Dispatcher.ChannelHandler.TryRetreeringInstanceContext(RequestContext 请求)
知道为什么会发生这种情况吗?
I've recently started using WCF WebApi to create a REST api. I followed samples available on CodePlex and also articles series by Alex Zeitler.
I tried to create a method which accepts data via POST as follows:
[ServiceContract]
public class AuthenticateApi
{
[WebInvoke(UriTemplate = "", Method = "POST")]
public HttpResponseMessage<LoginModel> Post(LoginModel loginModel)
{
loginModel.IsValidated = true;
return new HttpResponseMessage<LoginModel>(loginModel);
}
}
And this is my Entity:
public class LoginModel
{
public string Username { get; set; }
public string Password { get; set; }
public bool IsValidated { get; set; }
}
And finally this is my configuration in Global.asax:
public static void RegisterRoutes(RouteCollection routes)
{
routes.MapServiceRoute<AuthenticateApi>("login");
}
protected void Application_Start(object sender, EventArgs e)
{
RegisterRoutes(RouteTable.Routes);
}
When I try to POST something using Fiddler this way:
Content-Type: application/json
Accept: application/json
{"Username": "mahdi", "Password":"123"}
Host: localhost:8181
I receive the following error message:
The server encountered an error processing the request. The exception
message is 'Specified value has invalid HTTP Header characters.
Parameter name: name'. See server logs for more details. The exception
stack trace is:at System.Net.WebHeaderCollection.CheckBadChars(String name, Boolean
isHeaderValue) at System.Net.WebHeaderCollection.Add(String name,
String value) at
System.Collections.Specialized.NameValueCollection.Add(NameValueCollection
c) at
System.ServiceModel.Activation.HostedHttpContext.HostedRequestContainer.System.ServiceModel.Channels.HttpRequestMessageProperty.IHttpHeaderProvider.CopyHeaders(WebHeaderCollection
headers) at
System.ServiceModel.Channels.HttpRequestMessageProperty.get_Headers()
at
Microsoft.ApplicationServer.Http.Channels.HttpMessageEncodingRequestContext.ConfigureRequestMessage(Message
message) in
F:\codeplex\wcf\Http\Src\Microsoft.ApplicationServer.Http\Microsoft\ApplicationServer\Http\Channels\HttpMessageEncodingRequestContext.cs:line
222 at
Microsoft.ApplicationServer.Http.Channels.HttpMessageEncodingRequestContext.get_RequestMessage()
in
F:\codeplex\wcf\Http\Src\Microsoft.ApplicationServer.Http\Microsoft\ApplicationServer\Http\Channels\HttpMessageEncodingRequestContext.cs:line
54 at
System.ServiceModel.Dispatcher.ChannelHandler.EnsureChannelAndEndpoint(RequestContext
request) at
System.ServiceModel.Dispatcher.ChannelHandler.TryRetrievingInstanceContext(RequestContext
request)
Any idea why this happens?
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将 JSON 对象放在请求正文字段中,而不是放在标头中。
Put the JSON object in the request body field, not in with the headers.