在单个操作上启用多个HTTP方法？

Question

我有一个操作合同(下面),我想允许GET和POST请求.如何告诉WCF接受单个OperationContract的两种类型的请求？

[OperationContract,
WebInvoke(Method="POST",
    BodyStyle = WebMessageBodyStyle.Bare,
    RequestFormat = WebMessageFormat.Xml,
    ResponseFormat = WebMessageFormat.Xml,
    UriTemplate = "query")]
XElement Query(string qry);

[OperationContract,
WebInvoke(Method="GET",
    BodyStyle = WebMessageBodyStyle.Bare,
    RequestFormat = WebMessageFormat.Xml,
    ResponseFormat = WebMessageFormat.Xml,
    UriTemplate = "query?query={qry}")]
XElement Query(string qry);

Answer 1

如果有人在寻找不同的解决方案,

[OperationContract]
[WebInvoke(Method="*")]
public <> DoWork()
{
     var method = WebOperationContext.Current.IncomingRequest.Method;
     if (method == "POST") return DoPost();
     else if (method == "GET") return DoGet();
     throw new ArgumentException("Method is not supported.");
}

Answer 2

这篇由Carlos Figueira在MSDN论坛上发布的帖子有一个解决方案.我现在就说这个,但如果有人有任何更清洁的解决方案让我知道.

[OperationContract,
WebInvoke(Method="POST",
    BodyStyle = WebMessageBodyStyle.Bare,
    RequestFormat = WebMessageFormat.Xml,
    ResponseFormat = WebMessageFormat.Xml,
    UriTemplate = "query")]
XElement Query_Post(string qry);

[OperationContract,
WebInvoke(Method="GET",
    BodyStyle = WebMessageBodyStyle.Bare,
    RequestFormat = WebMessageFormat.Xml,
    ResponseFormat = WebMessageFormat.Xml,
    UriTemplate = "query?query={qry}")]
XElement Query_Get(string qry);