ByteArray、16进制、字符串之间的转换

ByteArray、16进制、字符串之间的转换：

package fengzi.convert
{
	import flash.utils.ByteArray;
	public class ByteArrayTranslated
	{

		/***
		* 通过hax数据返回ByteArray
		* @param                      hax       格式 "AA5A000100FF"
		***/
		public static function getHax(hax:String):ByteArray
		{
			var byte:ByteArray=new ByteArray();
			for (var i:uint = 0; i<hax.length; i=i+2)
			{
				trace(hax.substr(i, 2));
				trace(uint("0x"+hax.substr(i, 2)));
				byte.writeByte(uint("0x"+hax.substr(i, 2)));
			}

			return byte;
		}

		/***
		* 16进制数据返回ByteArray
		* @param                       str         格式 "AA5A000100FF"
		* @return                      bytes
		***/
		public static function from16ToByteArray(str:String):ByteArray
		{
			var bytes:ByteArray=new ByteArray();
			var b_arr:Array = str.split("");
			var b_length:int = b_arr.length;
			for (var i:int=0; i<b_length-1; i+=2)
			{
				var b_char1:String = b_arr[i];
				var b_char2:String = b_arr[i + 1];
				var b_byte:int=parseInt(b_char1+b_char2,16);
				//trace("b_byte:",b_byte);
				bytes.writeByte(b_byte);
			}
			return bytes;
		}

		/***
		* String转ByteArray
		* @param             str           字符
		* @return            bytes
		***/
		public static function convertStringToByteArray(str:String):ByteArray
		{
			var bytes:ByteArray;
			if (str)
			{
				bytes=new ByteArray();
				bytes.writeUTFBytes(str);
			}
			return bytes;
		}

		/***
		* ByteArray转String
		* @param       bytes
		* @return      str
		***/
		public static function convertByteArrayToString(bytes:ByteArray):String
		{
			var str:String;
			if (bytes)
			{
				bytes.position = 0;
				str = bytes.readUTFBytes(bytes.length);
			}
			return str;
		}

		/***
		* 把ByteArray转换为16进制的形式的字符串
		* @param ba
		* @param name
		* @return
		***/
		public static function byteArrayTo16(ba:ByteArray):String
		{
			ba.position = 0;
			var b_str:String = "";
			while (ba.bytesAvailable > 0)
			{
				var b_s:String = ba.readUnsignedByte().toString(16);
				//              trace("b_s:",b_s);
				if (b_s.length < 2)
				{
					b_s = "0" + b_s;
				}
				b_str +=  b_s;
			}
			return b_str;
		}

	}

}