pasvethtaskparam.java

利用Java Socket写的一段通讯协议

package com.ict.netcom2.task;

import java.io.*;
import com.ict.netcom2.hardware.*;
import com.ict.netcom2.parser.*;

public class PasvEthTaskParam extends TaskParam{

	private Card inCard;
	private Card outCard;
	public long linkId;
	private byte updatePeriod;
	private byte[] enterMacAddr;
	
	public PasvEthTaskParam (Card in, Card out,	long linkId, 
			int updatePeriod, String enterMacAddr) {
		this.inCard = in;
		this.outCard = out;
		this.linkId = linkId;
		this.updatePeriod = (byte)(updatePeriod&255);
		this.enterMacAddr = AddressParser.macAddr2bytes(enterMacAddr);
		encode();
	}
	
	private void encode() {
		ByteArrayOutputStream baos = new ByteArrayOutputStream();
		DataOutputStream dos = new DataOutputStream(baos);
		try {
			dos.writeByte(inCard.slotNo);
			dos.writeByte(inCard.infoNo);
			dos.writeByte(outCard.slotNo);
			dos.writeByte(outCard.infoNo);
			dos.writeInt((int)linkId);
			dos.writeByte(updatePeriod);
			dos.write(enterMacAddr);
			dos.close();
			baos.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
		paramCode = baos.toByteArray();
	}
}