json传输图片 等二进制数据

最近项目中遇到需要json传输上百个图标

进行了多种二进制转String的尝试，最终转得的String完全不对

自己估计是编码格式问题，查找资源发现basic64专做二进制数组和String之间的装换，

将Byte与字符相互装换

以下是C#实现的 json可用的 图片转String String转图片 的代码

/// <summary>Convert bitmap to Base64 String

/// </summary>

/// <param name="bitmap"></param>

/// <returns></returns>

public static String Jpeg2String(Bitmap bitmap)

{

using (Stream stream = new System.IO.MemoryStream())

{

bitmap.Save(stream, System.Drawing.Imaging.ImageFormat.Jpeg);

stream.Seek(0, SeekOrigin.Begin);

Byte[] picData = new byte[stream.Length];

stream.Read(picData, 0, picData.Length);

String sbmp = System.Convert.ToBase64String(picData);

return sbmp;

}

}

/// <summary> Convert base64 String to Jpeg

/// </summary>

/// <param name="base64Str"></param>

/// <returns></returns>

public static Bitmap GetBitMap(String base64Str)

{

if (!String.IsNullOrEmpty(base64Str))

{

using (Stream stream = new MemoryStream())

{

byte[] picData = System.Convert.FromBase64String(base64Str);

stream.Write(picData, 0, picData.Length);

stream.Seek(0, SeekOrigin.Begin);

Bitmap bitmap = new Bitmap(stream);

return bitmap;

}

}

return null;

}