以编程方式检查 WSDL 文件支持的 SOAP 版本（1.1 或 1.2 或两者）

Posted 2023-05-07

【中文标题】以编程方式检查 WSDL 文件支持的 SOAP 版本（1.1 或 1.2 或两者）

【英文标题】：Check programatically the version of SOAP(1.1 or 1.2 or both) a WSDL file supports

【发布时间】：2012-04-23 10:00:54

【问题描述】：

我正在使用 C#，我想检查 WSDL 支持哪个版本的 SOAP。我怎样才能找到它？

WSDL 1.1 文件中包含以下命名空间

xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"

WSDL 1.2 文件中包含以下命名空间

 xmlns:soap12="http://schemas.xmlsoap.org/wsdl/soap12/"    

如果一个文件同时支持这两个版本，它可以包含以下类型的内容

<wsdl:binding name="CustServiceSoap" type="tns:CustServiceSoap">
    <soap:binding transport="http://schemas.xmlsoap.org/soap/http" />
    <wsdl:operation name="GetAllCustomers">
      <soap:operation soapAction="http://tempuri.org/GetAllCustomers" style="document" />
      <wsdl:input>
        <soap:body use="literal" />
      </wsdl:input>
      <wsdl:output>
        <soap:body use="literal" />
      </wsdl:output>
    </wsdl:operation>
    <wsdl:operation name="GetNCustomers">
      <soap:operation soapAction="http://tempuri.org/GetNCustomers" style="document" />
      <wsdl:input>
        <soap:body use="literal" />
      </wsdl:input>
      <wsdl:output>
        <soap:body use="literal" />
      </wsdl:output>
    </wsdl:operation>
    <wsdl:operation name="GetRangeOfCustomers">
      <soap:operation soapAction="http://tempuri.org/GetRangeOfCustomers" style="document" />
      <wsdl:input>
        <soap:body use="literal" />
      </wsdl:input>
      <wsdl:output>
        <soap:body use="literal" />
      </wsdl:output>
    </wsdl:operation>
  </wsdl:binding>


<wsdl:binding name="CustServiceSoap12" type="tns:CustServiceSoap">
    <soap12:binding transport="http://schemas.xmlsoap.org/soap/http" />
    <wsdl:operation name="GetAllCustomers">
      <soap12:operation soapAction="http://tempuri.org/GetAllCustomers" style="document" />
      <wsdl:input>
        <soap12:body use="literal" />
      </wsdl:input>
      <wsdl:output>
        <soap12:body use="literal" />
      </wsdl:output>
    </wsdl:operation>
    <wsdl:operation name="GetNCustomers">
      <soap12:operation soapAction="http://tempuri.org/GetNCustomers" style="document" />
      <wsdl:input>
        <soap12:body use="literal" />
      </wsdl:input>
      <wsdl:output>
        <soap12:body use="literal" />
      </wsdl:output>
    </wsdl:operation>
    <wsdl:operation name="GetRangeOfCustomers">
      <soap12:operation soapAction="http://tempuri.org/GetRangeOfCustomers" style="document" />
      <wsdl:input>
        <soap12:body use="literal" />
      </wsdl:input>
      <wsdl:output>
        <soap12:body use="literal" />
      </wsdl:output>
    </wsdl:operation>

【问题讨论】：

这个链接有一些细节***.com/questions/736845/…。您是否正在寻找如何在 WCF 中执行此操作？

我想写一个函数，如果我提供了 WSDL 文件的 URL，那么它可以返回是支持 1.1 还是支持 1.2 或者两者都支持。我认为在解析 WSDL 文件时可以做到这一点。

使用一些 XSLT 处理 WSDL 文档。简单、轻量级，如果您需要更改 XSLT 查找的内容（保存为模板），则无需进行完整部署。

【参考方案1】：

public void Foo()

    //var uri = new Uri("http://kozhevnikov.com/foo.asmx?WSDL");
    //var uri = new Uri("http://kozhevnikov.com/bar.svc?WSDL");

    var importer = new WsdlImporter(new MetadataExchangeClient(uri, MetadataExchangeClientMode.HttpGet).GetMetadata());
    var version = importer.ImportAllEndpoints().Aggregate(Soap.None, (v, e) => v | Parse(e.Binding.MessageVersion.Envelope));

    if (version == Soap.None)
        Console.WriteLine("Is None.");
    if (version.HasFlag(Soap.Both))
        Console.WriteLine("Has Both.");

    Console.WriteLine(version);


private static Soap Parse(EnvelopeVersion version)

    if (version == EnvelopeVersion.None)
        return Soap.None;
    if (version == EnvelopeVersion.Soap11)
        return Soap.Soap11;
    if (version == EnvelopeVersion.Soap12)
        return Soap.Soap12;
    throw new NotImplementedException(version.ToString());


public enum Soap

    None,
    Soap11,
    Soap12,
    Both = Soap11 | Soap12

【参考方案2】：

尽管这个问题已经过去了近十年，而且肥皂服务也成为传统，但可能仍然需要像我一样处理它们！

using System.Web.Services.Description;
using System.Net.Http;
using System.Collections.Generic;
using System.Linq;

private static async Task<string[]> GetSoapVersions()

    var client = new HttpClient();
    var stream = await client.GetStreamAsync(WSDL_URL);

    var serviceDescription = ServiceDescription.Read(stream);

    var allVersionsCollection = new List<string>();

    foreach (Binding binding in serviceDescription.Bindings)
    
        foreach (var extension in binding.Extensions)
        
            if (extension is Soap12Binding)
                allVersionsCollection.Add("Soap12");
            else if (extension is SoapBinding)
                allVersionsCollection.Add("Soap11");
        
    

    return allVersionsCollection.Distinct().ToArray();