public class Message {

	private String flag;
	private int totleCount;
	private int curIndex;
	private byte [] content;
	
	
	
	
	public String getFlag() {
		return flag;
	}


	public void setFlag(String flag) {
		this.flag = flag;
	}


	public int getTotleCount() {
		return totleCount;
	}


	public void setTotleCount(int totleCount) {
		this.totleCount = totleCount;
	}


	public int getCurIndex() {
		return curIndex;
	}


	public void setCurIndex(int curIndex) {
		this.curIndex = curIndex;
	}


	public byte[] getContent() {
		return content;
	}


	public void setContent(byte[] content) {
		this.content = content;
	}


	public Message()
	{
		
	}
	
	
	public Message(String flag, int totleCount, int curIndex, byte[] content) {

		this.flag = flag;
		this.totleCount = totleCount;
		this.curIndex = curIndex;
		this.content = content;
	}	
}

/**
 *	工具类 
 */
public class Util {

	/**
	 * 将int转换成字节数组
	 */
	public static byte[] int2Bytes(int i)
	{
		byte[] bs = new byte[4];
		bs[0] = (byte)(i >>> 24);
		bs[1] = (byte)(i >>> 16);
		bs[2] = (byte)(i >>> 8);
		bs[3] = (byte)(i >>> 0);
		return bs;
	}
	
	/**
	 * 将字节数组前4位，转换成int
	 */
	public static int bytes2Int(byte [] bs)
	{
		int i0 = (bs[0] & 0xff) <<24;
		int i1 = (bs[1] & 0xff) <<16;
		int i2 = (bs[2] & 0xff) <<8;
		int i3 = (bs[3] & 0xff) <<0;
		return i0 | i1 | i2 | i3;
	}
	
	/**
	 * 将int转换成字节数组
	 */
	public static byte[] long2Bytes(long l)
	{
		byte[] bs = new byte[8];
		bs[0] = (byte)(l >>> 56);
		bs[1] = (byte)(l >>> 48);
		bs[2] = (byte)(l >>> 40);
		bs[3] = (byte)(l >>> 32);
		bs[4] = (byte)(l >>> 24);
		bs[5] = (byte)(l >>> 16);
		bs[6] = (byte)(l >>> 8);
		bs[7] = (byte)(l >>> 0);
		return bs;
	}
	
	/**
	 * 将字节数组前4位，转换成int
	 */
	public static long bytes2Long(byte [] bs)
	{
		long i0 = (bs[0] & 0xffL) <<56;
		long i1 = (bs[1] & 0xffL) <<48;
		long i2 = (bs[2] & 0xffL) <<40;
		long i3 = (bs[3] & 0xffL) <<32;
		long i4 = (bs[4] & 0xffL) <<24;
		long i5 = (bs[5] & 0xffL) <<16;
		long i6 = (bs[6] & 0xffL) <<8;
		long i7 = (bs[7] & 0xffL) <<0;
		return i0 | i1 | i2 | i3 | i4 | i5 | i6 | i7;
	}
	

	
	/**
	 * 将字节数组off位 + 4位， 转换成int
	 */
	public static int bytes2Int(byte [] bs , int offset)
	{
		int i0 = (bs[0 + offset] & 0xff) <<24;
		int i1 = (bs[1 + offset] & 0xff) <<16;
		int i2 = (bs[2 + offset] & 0xff) <<8;
		int i3 = (bs[3 + offset] & 0xff) <<0;
		return i0 | i1 | i2 | i3;
	}
}