图片文件序列化之后通过XML传输

序列化

                    Bitmap bitMap = new Bitmap(filename);
                    MemoryStream ms = new MemoryStream();
                    bitMap.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);

                    StringWriter sw = new StringWriter();
                    XmlTextWriter xw = new XmlTextWriter(sw);
                    xw.Formatting = Formatting.Indented;
                    XmlSerializer ser = new XmlSerializer(ms.GetBuffer().GetType());
                    ser.Serialize(xw, ms.GetBuffer());
                    string xmlString = sw.GetStringBuilder().ToString();
                    xw.Close();
                    sw.Close();
                    ms.Close();

                    XmlDocument doc = new XmlDocument();
                    doc.LoadXml(xmlString);
                    if (doc != null && doc.ChildNodes.Count > 1 && doc.ChildNodes[1] != null)
                    {
                        XmlNode node = doc.ChildNodes[1];
                        photoString = node.InnerText;
                    }

photoString 就是序列化之后的信息

反序列化

                    StringBuilder sb = new StringBuilder();
                    sb.Append("<?xml version=\"1.0\" encoding=\"utf-16\"?>\r\n<base64Binary>");
                    sb.Append(photoString);
                    sb.Append("</base64Binary>");

                    XmlTextReader xrw = new XmlTextReader(new StringReader(sb.ToString()));
                    MemoryStream ms = new MemoryStream();
                    XmlSerializer ser = new XmlSerializer(ms.GetBuffer().GetType());
                    Bitmap bitMap = new Bitmap(new MemoryStream((byte[])ser.Deserialize(xrw)));
                    //bitMap.Save(filePath);
                    ms.Close();
                    xrw.Close();

对于其他文件序列化

                    FileStream stream = new FileInfo(value).OpenRead();
                    byte[] buffer = new byte[stream.Length];
                    stream.Read(buffer, 0, Convert.ToInt32(stream.Length));
                  

                    StringWriter sw = new StringWriter();
                    XmlTextWriter xw = new XmlTextWriter(sw);
                    xw.Formatting = Formatting.Indented;
                    XmlSerializer ser = new XmlSerializer(buffer.GetType());                   
                    ser.Serialize(xw, buffer);
                    string xmlString = sw.GetStringBuilder().ToString();
                    xw.Close();
                    sw.Close();                  
                    stream.Close();

                    XmlDocument doc = new XmlDocument();
                    doc.LoadXml(xmlString);
                    if (doc != null && doc.ChildNodes.Count > 1 && doc.ChildNodes[1] != null)
                    {
                        XmlNode node = doc.ChildNodes[1];
                        fileString = node.InnerText;
                    }

反序列化

                StringBuilder sb = new StringBuilder();
                sb.Append("<?xml version=\"1.0\" encoding=\"utf-16\"?>\r\n<base64Binary>");
                sb.Append(fileString);
                sb.Append("</base64Binary>");

                XmlTextReader xrw = new XmlTextReader(new StringReader(sb.ToString()));
                MemoryStream ms = new MemoryStream();
                XmlSerializer ser = new XmlSerializer(ms.GetBuffer().GetType());

                MemoryStream ms1 = new MemoryStream((byte[])ser.Deserialize(xrw));
                FileStream fs = new FileStream("c:\\a." + fileEx, FileMode.CreateNew);
                ms1.WriteTo(fs);               
                fs.Close();
                ms1.Close();
                ms.Close();
                xrw.Close();

-------------------------------------

#region 保存  图像信息
            XmlElement Images = doc.CreateElement("Images");
            XmlAttribute imgcount = doc.CreateAttribute("Count");
            imgcount.InnerText = imgFileName.Length.ToString();
            Images.Attributes.Append(imgcount);      

            for (int i = 0; i < imgFileName.Length; i++)
            {
                XmlElement img = doc.CreateElement("image");
                System.IO.FileInfo fi = new System.IO.FileInfo(imgFileName[i]);
                int size = (int)fi.Length;
                string type = fi.Name.Substring(fi.Name.LastIndexOf("."));
                string strname = fi.Name;
                // XmlElement elem = myXmlDoc.CreateElement(strname);
                // 打开图片文件，利用该图片构造一个文件流
                FileStream fs = new FileStream(imgFileName[i], 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();
                img.InnerText = textString;

                XmlAttribute ImgAttributesName = doc.CreateAttribute("Name");
                ImgAttributesName.InnerText = strname.ToLower().ToString().Substring(0,strname.ToString().Length - 4);
                XmlAttribute ImgAttributesSize = doc.CreateAttribute("Size");
                ImgAttributesSize.InnerText = size.ToString();
                XmlAttribute ImgAttributesType = doc.CreateAttribute("Type");
                ImgAttributesType.InnerText = strname.ToLower().ToString().Substring(strname.ToString().Length - 3);

                img.Attributes.Append(ImgAttributesSize);
                img.Attributes.Append(ImgAttributesName);
                img.Attributes.Append(ImgAttributesType);

                Images.AppendChild(img);
            }
            EMRRepInfo.AppendChild(Images);

            #endregion

--------------------------------------------------

以下代码来自：http://blog.csdn.net/marquess/archive/2008/07/29/2732629.aspx

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Drawing.Imaging;

namespace base64_img
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        //图片 转为    base64编码的文本
        private void button1_Click(object sender, EventArgs e)
        {
            OpenFileDialog dlg = new OpenFileDialog();
            dlg.Title = "选择要转换的图片";
            dlg.Filter = "Image files (*.jpg;*.bmp;*.gif)|*.jpg*.jpeg;*.gif;*.bmp|AllFiles (*.*)|*.*";
            if (DialogResult.OK == dlg.ShowDialog())
            {
                ImgToBase64String(dlg.FileName);
            }
        }
        //图片 转为    base64编码的文本
        private void ImgToBase64String(string Imagefilename)
        {
            try
            {
                Bitmap bmp = new Bitmap(Imagefilename);
                this.pictureBox1.Image = bmp;
                FileStream fs = new FileStream(Imagefilename + ".txt", FileMode.Create);
                StreamWriter sw = new StreamWriter(fs);

                MemoryStream ms = new MemoryStream();
                bmp.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
                byte[] arr = new byte[ms.Length];
                ms.Position = 0;
                ms.Read(arr, 0, (int)ms.Length);
                ms.Close();
                String strbaser64 = Convert.ToBase64String(arr);
                sw.Write(strbaser64);

                sw.Close();
                fs.Close();
                MessageBox.Show("转换成功!");
            }
            catch (Exception ex)
            {
                MessageBox.Show("ImgToBase64String 转换失败\nException:" + ex.Message);
            }
        }

        //base64编码的文本 转为    图片
        private void button2_Click(object sender, EventArgs e)
        {
            OpenFileDialog dlg = new OpenFileDialog();
            dlg.Title = "选择要转换的base64编码的文本";
            dlg.Filter = "txt files|*.txt";
            if (DialogResult.OK == dlg.ShowDialog())
            {
                Base64StringToImage(dlg.FileName);
            }
        }
        //base64编码的文本 转为    图片
        private void Base64StringToImage(string txtFileName)
        {
            try
            {
                FileStream ifs = new FileStream(txtFileName, FileMode.Open, FileAccess.Read);
                StreamReader sr = new StreamReader(ifs);

                String inputStr = sr.ReadToEnd();
                byte[] arr = Convert.FromBase64String(inputStr);
                MemoryStream ms = new MemoryStream(arr);
                Bitmap bmp = new Bitmap(ms);

                bmp.Save(txtFileName + ".jpg", System.Drawing.Imaging.ImageFormat.Jpeg);
                //bmp.Save(txtFileName + ".bmp", ImageFormat.Bmp);
                //bmp.Save(txtFileName + ".gif", ImageFormat.Gif);
                //bmp.Save(txtFileName + ".png", ImageFormat.Png);
                ms.Close();
                sr.Close();
                ifs.Close();
                this.pictureBox1.Image = bmp;
                MessageBox.Show("转换成功！");
            }
            catch (Exception ex)
            {
                MessageBox.Show("Base64StringToImage 转换失败\nException："+ex.Message);
            }
        }
    }
}



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