Int String Byte Ip 相互转换

        // int转byte[]
	public static byte[] intToBytes(int value) {
		byte[] src = new byte[4];
		src[3] = (byte) ((value >> 24) & 0xFF);
		src[2] = (byte) ((value >> 16) & 0xFF);
		src[1] = (byte) ((value >> 8) & 0xFF);
		src[0] = (byte) (value & 0xFF);
		return src;
	}

	// long转byte[]
	public static byte[] long2bytes(long num) {
		byte[] b = new byte[8];
		for (int i = 0; i < 8; i++) {
			b[i] = (byte) (num >>> (56 - (i * 8)));
		}
		return b;
	}

	// 两个byte[]合并成一个byte[]
	public static byte[] byteMerger(byte[] byte_1, byte[] byte_2) {
		byte[] byte_3 = new byte[byte_1.length + byte_2.length];
		System.arraycopy(byte_1, 0, byte_3, 0, byte_1.length);
		System.arraycopy(byte_2, 0, byte_3, byte_1.length, byte_2.length);
		return byte_3;
	}

	// byte[]转String
	public static String byte2String(byte[] buffer) {
		String h = "";
		for (int i = 0; i < buffer.length; i++) {
			String temp = Integer.toHexString(buffer[i] & 0xFF);
			if (temp.length() == 1) {
				temp = "0" + temp;
			}
			h = h + " " + temp;
		}
		return h;
	}

	// byte[]转int
	public static int byte2Int(byte[] bRefArr) {
		int iOutcome = 0;
		byte bLoop;
		for (int i = 0; i < bRefArr.length; i++) {
			bLoop = bRefArr[i];
			iOutcome += (bLoop & 0xFF) << (8 * i);
		}
		return iOutcome;
	}

	// byte[]转long
	public static long bytes2long(byte[] bb) {
		return ((((long) bb[0] & 0xff) << 56) | (((long) bb[1] & 0xff) << 48)
				| (((long) bb[2] & 0xff) << 40) | (((long) bb[3] & 0xff) << 32)
				| (((long) bb[4] & 0xff) << 24) | (((long) bb[5] & 0xff) << 16)
				| (((long) bb[6] & 0xff) << 8) | (((long) bb[7] & 0xff) << 0));
	}

	// new byte 数组并填充0
	public static byte[] newByteZero(int len) {
		byte[] realBuf = new byte[len];
		java.util.Arrays.fill(realBuf, (byte) 0x0);
		return realBuf;
	}

	// 把byte[]未满位用0填充
	public static byte[] byteFillZero(byte[] buf, int len) {
		int i;
		byte[] realBuf = newByteZero(len);
		for (i = 0; i < buf.length; i++) {
			realBuf[i] = buf[i];
		}
		return realBuf;
	}

	// byte[] 2 stringByte[]去除0
	public static byte[] byte2StringByte(byte[] b1) {
		int i;
		for (i = 0; i < b1.length; i++) {
			if (b1[i] == 0) {
				break;
			}
		}
		return Arrays.copyOfRange(b1, 0, i);
	}

	// String加0
	public static byte[] byteAdd0(byte[] str) {
		byte[] b0 = { 0 };
		byte[] all = UtilTools.byteMerger(str, b0);
		return all;
	}

	// ip netmask 2 netip
	public static String ipNetMask2ip(String ip, String netMask) {
		String netIp = "";
		String[] ipsz = ip.split("\\.");
		String[] netMasksz = netMask.split("\\.");

		for (int i = 0; i < ipsz.length; i++) {
			int cii = Integer.parseInt(ipsz[i])
					& Integer.parseInt(netMasksz[i]);

			netIp = netIp + cii;
			if (i < ipsz.length - 1) {
				netIp += ".";
			}
		}
		return netIp;
	}

	// int 转 String(ip4)
	public static String int2Ip4(int ip) {
		return (ip & 0xFF) + "." + ((ip >> 8) & 0xFF) + "."
				+ ((ip >> 16) & 0xFF) + "." + ((ip >> 24) & 0xFF);
	}

	// byte[] 转 String(ip6)
	public static String byte2Ip6(byte[] ip) {
		String ipv6 = "";
		String value;
		for (int i = 0; i < ConfigPub.CONFIG_IP6_LEN; i++) {
			if ((0 == i % 2) && (i != 0)) {
				ipv6 += ":";
			}
			value = Integer.toHexString(ip[i] & 0xff);
			ipv6 += value;
		}
		return ipv6;
	}

	// mac转byte[]
	public static byte[] mac2Bytes(String mac) {
		byte[] macBytes = new byte[6];
		String[] strArr = mac.split(":");
		for (int i = 0; i < strArr.length; i++) {
			int value = Integer.parseInt(strArr[i], 16);
			macBytes[i] = (byte) value;
		}
		return macBytes;
	}

	// ip4转byte
	public static byte[] ip42Bytes(String ipAdd) {
		byte[] binIP = new byte[4];
		String[] strs = ipAdd.split("\\.");
		for (int i = 0; i < strs.length; i++) {
			binIP[i] = (byte) Integer.parseInt(strs[i]);
		}
		return binIP;
	}