C# WCF Web API 发布/放置问题

发布于 2024-11-17 07:42:55 字数 788 浏览 1 评论 0原文

我有一个看起来像这样的 Web 服务：

[WebInvoke(UriTemplate = "/{userName}/?key={key}&machineName={machineName}", Method = "PUT")]
public HttpResponseMessage<SomeStuffPutResponse> PutSomeStuff(string userName, string key, string machineName, string theTextToPut)
{
     // do stuff
}

我的 global.asx 看起来像：

RouteTable.Routes.MapServiceRoute<SomeStuffService>("1.0/SomeStuff", new HttpHostConfiguration());

当我通过 C# HttpClient 或 fiddler 访问 Web 服务时，它会抛出 500，甚至无法访问我的方法。我添加了一堆日志记录并收到以下错误：

服务操作 “PutSomeStuff”需要一个值可指定为输入类型“String” 参数'requestMessage'但是收到一个类型的值 'HttpRequestMessage`1'。

更新：如果我将 TextToPut 变量设为自定义对象，它就可以正常工作。如果它是像字符串这样的原始类型，它只会给我带来问题。

原文

I have a webservice that looks something like this:

[WebInvoke(UriTemplate = "/{userName}/?key={key}&machineName={machineName}", Method = "PUT")]
public HttpResponseMessage<SomeStuffPutResponse> PutSomeStuff(string userName, string key, string machineName, string theTextToPut)
{
     // do stuff
}

My global.asx looks like:

RouteTable.Routes.MapServiceRoute<SomeStuffService>("1.0/SomeStuff", new HttpHostConfiguration());

When I hit the webservice via C# HttpClient or fiddler it is throwing a 500 and not even getting to my method. I added a bunch of logging and am getting the following error:

The service operation
'PutSomeStuff' expected a value
assignable to type 'String' for input
parameter 'requestMessage' but
received a value of type
'HttpRequestMessage`1'.

UPDATE: If I make theTextToPut variable a custom object it works fine. It is just giving me issues if it is a primitive type like a string.

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终止放荡 2024-11-24 07:42:56

解决方案 1.

您可以将 theTextToPut 参数更改为 HttpRequestMessage，然后读取消息的内容。

[WebInvoke(UriTemplate = "/{userName}/?key={key}&machineName={machineName}", Method = "PUT")]
public HttpResponseMessage<SomeStuffPutResponse> PutSomeStuff(string userName, string key, string machineName, HttpRequestMessage request)
{
     string theTextToPut = request.Content.ReadAsString();
}

解决方案 2。

如果您确实希望以字符串形式获取参数，则可以创建一个操作处理程序来处理名为“theTextToPut”的所有字符串参数。

public class TextToPutOperationHandler : HttpOperationHandler<HttpRequestMessage, string>
    {
        public TextToPutOperationHandler() 
            : this("theTextToPut")
        { }

        private TextToPutOperationHandler(string outputParameterName) 
            : base(outputParameterName)
        { }

        public override string OnHandle(HttpRequestMessage input)
        {
            return input.Content.ReadAsString();
        }
    }

然后您在 Global.asax 中设置您的服务，如下所示：

RouteTable.Routes.MapServiceRoute<SomeStuffService>("1.0/SomeStuff",
                new HttpHostConfiguration().AddRequestHandlers(x => x.Add(new TextToPutOperationHandler())));

Solution 1.

You could change the theTextToPut-parameter to a HttpRequestMessage and then read the content of the message.

[WebInvoke(UriTemplate = "/{userName}/?key={key}&machineName={machineName}", Method = "PUT")]
public HttpResponseMessage<SomeStuffPutResponse> PutSomeStuff(string userName, string key, string machineName, HttpRequestMessage request)
{
     string theTextToPut = request.Content.ReadAsString();
}

Solution 2.

If you really want to get the parameter as a string you could create a operation handler that handles all string parameters named "theTextToPut".

public class TextToPutOperationHandler : HttpOperationHandler<HttpRequestMessage, string>
    {
        public TextToPutOperationHandler() 
            : this("theTextToPut")
        { }

        private TextToPutOperationHandler(string outputParameterName) 
            : base(outputParameterName)
        { }

        public override string OnHandle(HttpRequestMessage input)
        {
            return input.Content.ReadAsString();
        }
    }

Then you set up your service in Global.asax as follows:

RouteTable.Routes.MapServiceRoute<SomeStuffService>("1.0/SomeStuff",
                new HttpHostConfiguration().AddRequestHandlers(x => x.Add(new TextToPutOperationHandler())));

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