Question

我正在尝试将集合类转换为xml数据，并将该xml数据附加到xml文件这是我的功能'

  public void XmlWriter(List<Email> Femails)
    {
        string ErrorXmlFile = @"../../Retries.xml";
        try
        {
            if (!File.Exists(ErrorXmlFile))
            {
                XmlSerializer xSeriz = new XmlSerializer(typeof(List<Email>));
                FileStream fs = File.Open(ErrorXmlFile, FileMode.Append, FileAccess.Write, FileShare.ReadWrite);
                xSeriz.Serialize(fs, Femails);

            }
            else 
            {
                foreach(Email email in Femails)
                {
                XmlDocument doc = new XmlDocument();
                doc.Load(ErrorXmlFile);
                XmlNode xnode = doc.CreateNode(XmlNodeType.Element, "ArrayOfEmail", null);
                XmlSerializer xSeriz = new XmlSerializer(typeof(Email));
                StringWriter sw = new StringWriter();
                xSeriz.Serialize(sw,email);
                xnode.InnerXml = Convert.ToString(sw);
                doc.DocumentElement.AppendChild(xnode);
                doc.Save(ErrorXmlFile);
                }
            }
        }
        catch (Exception ex)
        {
            throw ex;
        }

    }

在上面的函数中，“femail”是List的参数，其中Email是userdefind自定义类。第一次检查文件是否存在。如果没有，那么它现在工作正常但是当我需要将数据附加到我现有的文件时它失败了。

根据我上面的代码，它将单个Email对象转换为带有<?xml version="1.0" encoding="utf-16"?>的xml数据，并且我希望在绑定之前将其删除。

我从我的代码得到的输出是：

<?xml version="1.0"?>
<ArrayOfEmail xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <Email>
    <UtcDateTime>2013-01-23T10:09:48+05:30</UtcDateTime>
    <From>Rajendra Bhalekar &lt;rajendra.b000@gmail.com&gt;</From>
    <To>Mansha Suman &lt;asdmansha@gmail.com&gt;</To>
    <Subject>Ye dil sun raha hai jo mere dil ki hai sada ye...socha tha na maine......</Subject>
    <IDX>32a84ef7-31bf-4366-bcab-ec10b2f39bc6</IDX>
    <Body>
Hi Raj,

Dil pe mat le yaar dil pe mat le....
idx:32a84ef7-31bf-4366-bcab-ec10b2f39bc6

odhani chunariya tere naam ki - Pyar kiya to darna kya

sona sona telephone dhun pe hasne wali - hidustaniREPLY ABOVE THIS LINEdil
ibadat kar raha hai


Thanks &amp; regards,

Raj

</Body>
    <ExtractReplyText>Hi Raj,Dil pe mat le yaar dil pe mat le....idx:32a84ef7-31bf-4366-bcab-ec10b2f39bc6odhani chunariya tere naam ki - Pyar kiya to darna kya</ExtractReplyText>
  </Email>
  <ArrayOfEmail>
    <?xml version="1.0" encoding="utf-16"?>
<Email xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <UtcDateTime>2013-01-23T10:09:48+05:30</UtcDateTime>
  <From>Rajendra Bhalekar &lt;rajendra.b000@gmail.com&gt;</From>
  <To>Mansha Suman &lt;asdmansha@gmail.com&gt;</To>
  <Subject>Ye dil sun raha hai jo mere dil ki hai sada ye...socha tha na maine......</Subject>
  <IDX>32a84ef7-31bf-4366-bcab-ec10b2f39bc6</IDX>
  <Body>
Hi Raj,

Dil pe mat le yaar dil pe mat le....
idx:32a84ef7-31bf-4366-bcab-ec10b2f39bc6

odhani chunariya tere naam ki - Pyar kiya to darna kya

sona sona telephone dhun pe hasne wali - hidustaniREPLY ABOVE THIS LINEdil
ibadat kar raha hai


Thanks &amp; regards,

Raj

</Body>
  <ExtractReplyText>Hi Raj,Dil pe mat le yaar dil pe mat le....idx:32a84ef7-31bf-4366-bcab-ec10b2f39bc6odhani chunariya tere naam ki - Pyar kiya to darna kya</ExtractReplyText>
</Email></ArrayOfEmail>
</ArrayOfEmail>

这不是我所期待的。请建议我进行必要的更正。

Answer 1

我的问题现在解决了，这段代码对我有用

public void XmlWriter(List<Email> Femails)
{
    #region On Error Retry and retrycount with xml file

    string ErrorXmlFile = @"../../Retries.xml";
    try
    {
        if (!File.Exists(ErrorXmlFile))
        {
            XmlSerializer xSeriz = new XmlSerializer(typeof(List<Email>));
            FileStream fs = File.Open(ErrorXmlFile, FileMode.Append, FileAccess.Write, FileShare.ReadWrite);
            xSeriz.Serialize(fs, Femails);
            foreach (Email email in Femails)
            {
                SaveAttachment(email);
            }

        }
        else 
        {
            XmlDocument doc = new XmlDocument();
            doc.Load(ErrorXmlFile);

            foreach (Email email in Femails)
            {
                XmlNode xnode = doc.CreateNode(XmlNodeType.Element, "BLACKswastik", null);
                XmlSerializer xSeriz = new XmlSerializer(typeof(Email));
                XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
                ns.Add("", "");
                XmlWriterSettings writtersetting = new XmlWriterSettings();
                writtersetting.OmitXmlDeclaration = true;
                StringWriter stringwriter = new StringWriter();
                using (XmlWriter xmlwriter = System.Xml.XmlWriter.Create(stringwriter, writtersetting))
                {
                    xSeriz.Serialize(xmlwriter, email, ns);
                }
                xnode.InnerXml = stringwriter.ToString();
                XmlNode bindxnode = xnode.SelectSingleNode("Email");
                doc.DocumentElement.AppendChild(bindxnode);
                SaveAttachment(email);
            }
            doc.Save(ErrorXmlFile);
        }
    }
    catch (Exception ex)
    {
        throw ex;
    }

    #endregion
}

如何将xml数据附加到xml文件中

1 个答案: