验证消息体时出错

本文关键字：出错 消息 验证 | 更新日期: 2023-09-27 17:54:47

我正在尝试验证wc消息的主体并获得异常

"对'ValidateEndElement'方法的调用不匹配对'ValidateElement'方法的相应调用。"

using (MessageBuffer messageBuffer = message.CreateBufferedCopy(int.MaxValue))
{
      Message copiedMessage = messageBuffer.CreateMessage();
      using (var xreader = XmlReader.Create(
            copiedMessage.GetReaderAtBodyContents(), xmlReaderSettings))
      {
          while (xreader.Read()) ;
      }
            message = messageBuffer.CreateMessage();
}

XmlSchemaSet和reader设置在单独的方法中加载

        xmlReaderSettings = new XmlReaderSettings
           {
               ValidationType = ValidationType.Schema,
               Schemas = this.xmlSchemaSet,
               ConformanceLevel = ConformanceLevel.Auto
           };
        xmlReaderSettings.ValidationEventHandler += (o, e) =>
        {
            if (e.Severity == XmlSeverityType.Error)
                throw new ContractXmlSchemaValidationException(e.Message);
        };

创建wcf消息(其中messageBody变量保存body xml)

Message  msg = null;
var reader = XmlReader.Create(new StringReader(messageBody));
msg = Message.CreateMessage(MessageVersion.Soap12, "http://mysoapAction", reader);
msg.Headers.Add(MessageHeader.CreateHeader("To", "http://schemas.microsoft.com/ws/2005/05/addressing/none", "http://localhost/Service/Service1.svc"));

验证消息体时出错

直接使用:GetReaderAtBodyContents().ReadSubtree()你会得到一个阅读器，它只读取正文。

编辑:

我用它验证我的请求。因为我们的webspherewebspherewebspherewebspherewebspherewebspherewebspherewebsphereserver Error (HTTP 500 Internal Server Error)——如果xml是无效的，就会出现错误。

var settings = new XmlReaderSettings();
settings.Schemas.Add(_schemas);
settings.CloseInput = true;
settings.ValidationType = ValidationType.Schema;
settings.ValidationFlags = XmlSchemaValidationFlags.AllowXmlAttributes
                         | XmlSchemaValidationFlags.ProcessInlineSchema
                         | XmlSchemaValidationFlags.ReportValidationWarnings;
settings.ValidationEventHandler += ValidationEventHandler;

using (XmlDictionaryReader bodyReader = message.GetReaderAtBodyContents())
using (XmlReader documentReader = XmlReader.Create(bodyReader.ReadSubtree(), settings))
{
    documentReader.MoveToContent();
    using (var memory = new MemoryStream())
    //copy & validate in one step :)    
    using (XmlWriter writer = XmlWriter.Create(memory))
    {
        writer.WriteNode(documentReader, false);
        writer.Flush();
    }
#if DEBUG    
    memory.Seek(0, SeekOrigin.Begin);
    string xml = new StreamReader(memory).ReadToEnd();
#endif
    memory.Seek(0, SeekOrigin.Begin);
    message = Message.CreateMessage(message.Version, null, XmlReader.Create(memory));
    message.Headers.CopyHeadersFrom(message);
}

当您调用GetReaderAtBodyContents()时，它将完全这样做:获取整个消息的Reader，从Body内容开始。当您到达正文内容的末尾时，xreader.Read()将继续读取消息的其余部分，并为正文点击结束标记。你需要修改你的while循环来阻止读者点击这个。试试这个:

int startDepth = xreader.Depth;
while (xreader.Read())
{
    if (xreader.Depth == startDepth && xreader.NodeType == XmlNodeType.EndElement)
    {
        break;
    }
}

如果有更优雅的方法，请分享!

在他们的回答中，@masty忽略了自动关闭标签的大小写。应该是:

int startDepth = xreader.Depth;                    
while (xreader.Read())
{                       
  if (xreader.Depth == startDepth && (xreader.IsEmptyElement || xreader.NodeType == XmlNodeType.EndElement))
   {
      break;
   }
}
相关文章：