使用C# HttpClient调用WebService

很早之前调用WebService接口都是在项目中引用服务，然后new实例直接调用，但是第三方提供的是java的WebService，还有就是接口地址需要配置在表中，对接了两次都折腾了好些时间，记录一下吧，万变不离其宗，还是用的HttpClient

先使用SoapUI生成请求报文

然后是用HttpClient调用接口并解析结果

	public async Task<string> PostAsync(string reqUrl, HttpContent httpContent)
	{
		using HttpClient httpClient = _httpClientFactory.CreateClient();
		using HttpResponseMessage httpResponseMessage = await httpClient.PostAsync(reqUrl, httpContent);

		httpResponseMessage.EnsureSuccessStatusCode();
		return await httpResponseMessage.Content.ReadAsStringAsync();
	}
        
        
try
{
	string Url = await this._appSettingService.GetAppSettingKeyValue("Url");

	string xml = "";
	xml += "<soap:Envelope xmlns:soap=\"http://www.w3.org/2003/05/soap-envelope\" xmlns:ser=\"http://service.dxd.com/\">";
	xml += "   <soap:Header/>";
	xml += "   <soap:Body>";
	xml += "      <ser:inParam>" + request.InParam + "</ser:inParam>";
	xml += "   </soap:Body>";
	xml += "</soap:Envelope>";
	HttpContent httpContent = new StringContent(xml, Encoding.UTF8, "text/xml");

	string outXml = await this._webServiceClient.PostAsync(Url, httpContent);

	Match match = Regex.Match(outXml, @"<soap:Envelope.*?>(.*?)</soap:Envelope>");
	if (match.Success)
	{
		XmlDocument xmlDocument = new XmlDocument();

		xmlDocument.LoadXml(match.Value);

		XmlNamespaceManager nsmgr = new XmlNamespaceManager(xmlDocument.NameTable);
		nsmgr.AddNamespace("soap", "http://www.w3.org/2003/05/soap-envelope");
		nsmgr.AddNamespace("svc", "http://service.dxd.com/");

		XmlNode? bodyNode = xmlDocument.SelectSingleNode("//soap:Envelope/soap:Body", nsmgr);
		if (bodyNode != null)
		{
			XmlNode? returnCallNode = bodyNode.SelectSingleNode("svc:returnCall", nsmgr);
			if (returnCallNode != null)
			{
				JObject objResult = JObject.Parse(returnCallNode.InnerText);
				if (objResult.Value<int>("success") == 1)
				{
					resp.Data = objResult.Value<string>("outParam");
				}
				else
				{
					resp.Data = objResult.Value<string>("outParam");
				}
				resp.Succ("获取成功！");
			}
			else
			{
				throw new AppException(bodyNode.InnerText);
			}
		}
	}
}
catch (Exception ex)
{
	resp.Fail("获取失败！" + ex.Message);
}