Read the image into Dom and save it as an xml file

Read the image into Dom and save it as an xml file

1. Namespace required
using System.Text;
using System.IO;
using System .Xml;
2. The 001.jpg image exists in the folder
3. Generate a docSave.xml file

//*********************************
   {
    XmlDocument myXmlDoc = new XmlDocument();
    myXmlDoc.LoadXml("picture");
    XmlElement elem = myXmlDoc.CreateElement("image");
    // 打开图片文件，利用该图片构造一个文件流
    FileStream fs = new FileStream("../../001.jpg",FileMode.Open);
    // 使用文件流构造一个二进制读取器将基元数据读作二进制值
    BinaryReader br = new BinaryReader(fs);
    byte[] imageBuffer = new byte[br.BaseStream.Length];
    br.Read(imageBuffer,0,Convert.ToInt32(br.BaseStream.Length));
    string textString = System.Convert.ToBase64String(imageBuffer);
    fs.Close();
    br.Close();
    XmlText text = myXmlDoc.CreateTextNode(textString);
    myXmlDoc.DocumentElement.AppendChild(elem);
    myXmlDoc.DocumentElement.LastChild.AppendChild(text);
    myXmlDoc.Save("../../docSave.xml");
    MessageBox.Show("读写结束！");
catch(Exception ex)
   {
    MessageBox.Show(ex.ToString());
   }
//************************************************
//生成后的Xml文档
//******

  picture
  ......

//*************************************************
//测试上一程序
//***********

Instructions: Read the image node in docSave.xml and save it as Image format 002.jpg.

try
   {
    int readByte = 0;
    int bytesToRead = 1044;
    XmlTextReader xmlTxtRd = new XmlTextReader("../../docSave.xml");
    FileStream fs = new FileStream("../../002.jpg",FileMode.Create);
    BinaryWriter bw = new BinaryWriter(fs);
    byte[] base64buffer = new byte[bytesToRead];
    while(xmlTxtRd.Read())
    {
     if (xmlTxtRd.NodeType == XmlNodeType.Element && xmlTxtRd.Name == "image")
     {
      do
      {
       readByte = xmlTxtRd.ReadBase64(base64buffer,0,bytesToRead);
       bw.Write(base64buffer,0,readByte);
      }
      while( bytesToRead<= readByte);
     }
    }
    bw.Flush();
    bw.Close();
    fs.Close();
    xmlTxtRd.Close();
    MessageBox.Show("读写结束！");
   }
  catch(Exception ex)
   {
    MessageBox.Show(ex.ToString());
   }

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