/// <summary>
/// 获取XDocument转换后的IResponseMessageBase实例（通常在反向读取日志的时候用到）。
/// 如果MsgType不存在，抛出UnknownRequestMsgTypeException异常
/// </summary>
/// <returns></returns>
public static IResponseMessageBase GetResponseEntity(XDocument doc)
{
ResponseMessageBase responseMessage = null;
ResponseMsgType msgType;
try
{
msgType = MsgTypeHelper.GetResponseMsgType(doc);
switch (msgType)
{
case ResponseMsgType.Text:
responseMessage = new ResponseMessageText();
break;
case ResponseMsgType.Image:
responseMessage = new ResponseMessageImage();
break;
case ResponseMsgType.Voice:
responseMessage = new ResponseMessageVoice();
break;
case ResponseMsgType.Video:
responseMessage = new ResponseMessageVideo();
break;
case ResponseMsgType.News:
responseMessage = new ResponseMessageNews();
break;
default:
throw new UnknownRequestMsgTypeException(string.Format("MsgType：{0} 在ResponseMessageFactory中没有对应的处理程序！", msgType), new ArgumentOutOfRangeException());
}
EntityHelper.FillEntityWithXml(responseMessage, doc);
}
catch (ArgumentException ex)
{
throw new WeixinException(string.Format("ResponseMessage转换出错！可能是MsgType不存在！，XML：{0}", doc.ToString()), ex);
}
return responseMessage;
}
private static ResponseMessageBase CreateFromRequestMessage(IRequestMessageBase requestMessage, ResponseMsgType msgType)
{
ResponseMessageBase responseMessage = null;
try
{
switch (msgType)
{
case ResponseMsgType.Text:
responseMessage = new ResponseMessageText();
break;
case ResponseMsgType.News:
responseMessage = new ResponseMessageNews();
break;
case ResponseMsgType.Image:
responseMessage = new ResponseMessageImage();
break;
case ResponseMsgType.Voice:
responseMessage = new ResponseMessageVoice();
break;
case ResponseMsgType.Video:
responseMessage = new ResponseMessageVideo();
break;
case ResponseMsgType.MpNews:
responseMessage = new ResponseMessageMpNews();
break;
case ResponseMsgType.NoResponse:
responseMessage = new ResponseMessageNoResponse();
break;
default:
throw new UnknownRequestMsgTypeException(string.Format("ResponseMsgType没有为 {0} 提供对应处理程序。", msgType), new ArgumentOutOfRangeException());
}
responseMessage.ToUserName = requestMessage.FromUserName;
responseMessage.FromUserName = requestMessage.ToUserName;
responseMessage.CreateTime = DateTime.Now; //使用当前最新时间
}
catch (Exception ex)
{
throw new WeixinException("CreateFromRequestMessage过程发生异常", ex);
}
return(responseMessage);
}
/// <summary>
/// 从返回结果XML转换成IResponseMessageBase实体类
/// </summary>
/// <param name="xml">返回给服务器的Response Xml</param>
/// <returns></returns>
public static IResponseMessageBase CreateFromResponseXml(string xml)
{
try
{
if (string.IsNullOrEmpty(xml))
{
return(null);
}
var doc = XDocument.Parse(xml);
ResponseMessageBase responseMessage = null;
var msgType = (ResponseMsgType)Enum.Parse(typeof(ResponseMsgType), doc.Root.Element("MsgType").Value, true);
switch (msgType)
{
case ResponseMsgType.Text:
responseMessage = new ResponseMessageText();
break;
case ResponseMsgType.Image:
responseMessage = new ResponseMessageImage();
break;
case ResponseMsgType.Voice:
responseMessage = new ResponseMessageVoice();
break;
case ResponseMsgType.Video:
responseMessage = new ResponseMessageVideo();
break;
case ResponseMsgType.News:
responseMessage = new ResponseMessageNews();
break;
case ResponseMsgType.MpNews:
responseMessage = new ResponseMessageMpNews();
break;
case ResponseMsgType.NoResponse:
responseMessage = new ResponseMessageNoResponse();
break;
}
responseMessage.FillEntityWithXml(doc);
return(responseMessage);
}
catch (Exception ex)
{
throw new WeixinException("ResponseMessageBase.CreateFromResponseXml<T>过程发生异常！" + ex.Message, ex);
}
}