Question

我有一些xml文件,我正试图在给定代码中进行以下的消毒。

using (StreamReader srFileContent = new StreamReader(filePath))  
{
    XmlSerializer serializer = new XmlSerializer(typeof(messageType));   
    messageType objMessage = (messageType)serializer.Deserialize(srFileContent);  
}

在此文件定位于文件Path 文件不包含以下行

<?xml version="1.0"?>
<message xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xmlns:xsd="http://www.w3.org/2001/XMLSchema">

这就是为什么我得到错误的原因。可以帮助我如何在解密给定文件流之前添加此行运行时间。

以下给出错误 :

System.InvalidOperationException: There is an error in XML document (2, 2). ---> System.InvalidOperationException: was not expected. at Microsoft.Xml.Serialization.GeneratedAssembly.XmlSerializationReadermessageType.‌Read161_message() --- End of inner exception stack trace --- at System.Xml.Serialization.XmlSerializer.Deserialize(XmlReader xmlReader, String encodingStyle, XmlDeserializationEvents events) at System.Xml.Serialization.XmlSerializer.Deserialize(TextReader textReader) at CCR2BB.frmMain.BWConvertProcess_DoWork()

Answer 1

您需要查看基本例外以找出问题。所捕捉的例外可能包含4个或4个以上的内部例外。

埃格:

try
{
  ...
}
catch (Exception ex)
{
  Console.WriteLine(ex.GetBaseException());
}

Answer 2

另一个问题的解决办法是:

XmlRootAttribute xRoot = new XmlRootAttribute();
xRoot.ElementName = "message";
// xRoot.Namespace = "http://www.cpandl.com";
xRoot.IsNullable = true;

XmlSerializer xs = new XmlSerializer(typeof(messageType),xRoot);

也许这是解决你问题的方法。因为 MSDN 已经关闭了我的网络, 我无法为 XmlRoootAttrimitte 提供更多文件。

Answer 3

你从哪里得到班级信息 Type?

如果您使用 xsd.exe 为您的 xml 创建了 xsd, 然后使用 xsd 创建了此类。

然后您的工程将有两个包含此类的文档。

One of the file is designer.cs which contains this class which is derived from DataSet class
One file is simply a .cs file, which has a partial class.
When you use this class while deserializing, it will refer to the class from designer.cs which is derived from DataSet.
But if you remove designer.cs from you project, your code will refer to the partial class from .cs file.

通过删除这个由 DataSet 衍生的类别。 cs 文件, 我解决了这个错误。

Answer 4

我认为您必须声明类 < code> XmlRoootAttrimitte 的 < desco> messesageType 。例如,

[System.Xml.Serialization.XmlRootAttribute(ElementName = "message", IsNulable=false)]

public class messageType 
{
...
}

友情链接