update 电单车协议

jsowell-common/src/main/java/com/jsowell/common/constant/Constants.java

@@ -10,6 +10,8 @@ import java.math.BigDecimal;
  * @author jsowell
  */
 public class Constants {
+	// 电单车协议包头
+	public static final String EBIKE_HEADER = "DNY";
 
 	// 十六进制前缀
 	public static final String HEX_PREFIX = "0x";

jsowell-common/src/main/java/com/jsowell/common/util/BytesUtil.java

@@ -380,7 +380,7 @@ public class BytesUtil {
 		// int i = BytesUtil.bytesToIntLittle(length);
 		// System.out.println(i);
 
-		String testStr = "DNY";
+		String testStr = Constants.EBIKE_HEADER;
 		byte[] hexBytes = stringToHexBytes(testStr, 3);
 		System.out.println("Hex Bytes: " + bytesToHex(hexBytes));
 	}