将一个图片以二进制值的形式存入Xml文件中

选择自 xinyuxin912 的 Blog

try
   {
    int readByte = 0;        //
    int bytesToRead = 100;       //数据缓冲区大小
    string fileName = "../../WriteXml.xml";   //要打开的文件
    //   this.textBox1.Text = string.Empty;

    // 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);

    XmlTextWriter xmlTxtWt = new XmlTextWriter(fileName,Encoding.UTF8);
    //输出设置代码缩进
    xmlTxtWt.Formatting = Formatting.Indented;
    //   xmlTxtWt.Indentation = 4;

    //书写声明
    xmlTxtWt.WriteStartDocument();
    xmlTxtWt.WriteStartElement("picture","ContactDetails","http://www.deltabis.com/Contact");//定义命名空间
    xmlTxtWt.WriteStartElement("image");            //定义节点
    xmlTxtWt.WriteAttributeString("imageName","002.jpg");        //添加图片属性

    byte[] base64buffer = new byte[bytesToRead];          //开辟缓冲区
    do
    {
     readByte = br.Read(base64buffer,0,bytesToRead);      //将数据读入字节数组
     xmlTxtWt.WriteBase64(base64buffer,0,readByte);       //将数组中二进制值编码为Base64并写出到XML文件

}while(bytesToRead <= readByte);

    xmlTxtWt.WriteEndElement();
    xmlTxtWt.WriteEndElement();
    xmlTxtWt.WriteEndDocument();

// xmlTxtWt.Flush();
xmlTxtWt.Close();

MessageBox.Show("读写结束！");

    //   this.textBox1.Text = ReadXml(fileName);
   }
   catch(Exception ex)
   {
    MessageBox.Show(ex.ToString());
   }
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选择自 xinyuxin912 的 Blog

将图片读入到Dom中，并将其存为xml文件

1、需要命名空间
using System.Text;
using System.IO;
using System.Xml;
2、文件夹中存在001.jpg图片
3、生成一个docSave.xml文件

//*********************************
   {
    XmlDocument myXmlDoc = new XmlDocument();
    myXmlDoc.LoadXml("<picture><name>picture</name></picture>");

XmlElement elem = myXmlDoc.CreateElement("image");

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>
<name>picture</name>
<image>......</image>
</picture>

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

说明：读取docSave.xml中的image节点,将其存为图片格式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());
   }