C#怎么解析 java转的16进制图片字符串

如题本人现在有个由java转的16进制图片字符串，本人要用C#的方法将其转换，
然后保存图片文件，有哪位高手知道方法，求告知。
或将下面java解析、保存图片的代码转换成可运行的C#代码
public void saveToImgFile(String src, String output)
{
if (src == null || src.length() == 0)
{
return;
}
try
{
src=src.replaceAll(“(00){1,}$”, “”);
FileOutputStream out = new FileOutputStream(new File(output));
byte[] bytes = src.getBytes();
for (int i = 0; i < bytes.length; i += 2)
{
out.write(charToInt(bytes[i]) * 16 + charToInt(bytes[i + 1]));
}
out.close();
}
catch (Exception e)
{
e.printStackTrace();
}
}
private int charToInt(byte ch)
{
int val = 0;
if (ch >= 0x30 && ch <= 0x39)
{
val = ch – 0x30;
}
else if (ch >= 0x41 && ch <= 0x46)
{
val = ch – 0x41 + 10;
}
return val;
}

解决方案

100

/// <summary>
/// 字符串转16进制字节数组
/// </summary>
/// <param name=”hexString”></param>
/// <returns></returns>
private static byte[] strToToHexByte(string hexString)
{
hexString = hexString.Replace(” “, “”);
if ((hexString.Length % 2) != 0)
hexString += ” “;
byte[] returnBytes = new byte[hexString.Length / 2];
for (int i = 0; i < returnBytes.Length; i++)
returnBytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16);
return returnBytes;
}
/// <summary>
/// 字节数组转16进制字符串
/// </summary>
/// <param name=”bytes”></param>
/// <returns></returns>
public static string byteToHexStr(byte[] bytes)
{
string returnStr = “”;
if (bytes != null)
{
for (int i = 0; i < bytes.Length; i++)
{
returnStr += bytes[i].ToString(“X2”);
}
}
return returnStr;
}