如果BizTalk在HTTP发送适配器中接收到400或500响应，则可以使用以下C#代码将请求消息保存到BizTalk中，以便进行后续处理（如重试或记录错误）。此代码应该在HTTP发送适配器的'异常”选项卡中的'所有 HTTP 状态代码”一栏中使用。

//在请求头中添加以下标头。 System.Net.WebHeaderCollection objHeaderCol = new System.Net.WebHeaderCollection(); objHeaderCol.Add("BTSHTTPURI", BTSHTTPURI); objHeaderCol.Add("BTSHTTPMethod", BTSHTTPMethod);

//从输入流中读取响应。 System.IO.Stream strmResponse = objHttpWebResponse.GetResponseStream(); System.IO.StreamReader strmResponseReader = new System.IO.StreamReader(strmResponse); strmResponse.Position = 0; string strResponse = strmResponseReader.ReadToEnd();

//将请求保存到BizTalk。 Microsoft.BizTalk.Message.Interop.IBaseMessageFactory messageFactory = new Microsoft.BizTalk.Message.Interop.BTMessageFactory(); Microsoft.BizTalk.Component.XmlDasmComp documentDisassembler = new Microsoft.BizTalk.Component.XmlDasmComp(); documentDisassembler.DocumentSpecName = new Microsoft.BizTalk.Component.XmlDasmComp.DocumentSpecName("Namespace", "RootNodeName", "http://example.com/namespace"); documentDisassembler.ValidateDocument = false;

//使用请求文本创建BizTalk消息。 Microsoft.BizTalk.Message.Interop.IBaseMessage inMsg = messageFactory.CreateMessage(); inMsg.Context.Write("InboundTransportLocation", "http", "BTS.HTTPURL"); inMsg.Context.Promote("MessageType", "http://schemas.microsoft.com/BizTalk/2003/http-properties", "GET"); inMsg.BodyPart.Data = new System.IO.MemoryStream(Encoding.UTF8.GetBytes(strResponse)); inMsg.Context.Write("HttpStatusCode", "http://schemas.microsoft.com/BizTalk/2003/http-properties", strHttpResponseCode); inMsg.Context.Promote("http://schemas.microsoft.com/BizTalk/2003/http-properties", "BTSHTTPURI", BTSHTTPURI); inMsg.Context.Promote("http://schemas.microsoft.com/BizTalk/2003/http-properties", "B