package send;

public class SerialBuffer
{
    public String Content = "";
    private String CurrentMsg;
    private boolean available = false;
    private int LengthNeeded = 2;
    public boolean isTimeOut=false;

    public synchronized String getMsg(long timeOut)//获得所读取的前两个字符
    {
        while (Content.equals("")||Content==null)
        {
            try
            {
            wait(timeOut);
            }catch(InterruptedException e){
                e.printStackTrace();
            }
            if(Content.equals("")||Content==null)
            {
                isTimeOut=true;
                Content="aa";
            }
            else
            {
                break;
            }
        }
        CurrentMsg = Content.substring(0, LengthNeeded);
        Content = Content.substring(LengthNeeded, Content.length());
        notifyAll();
        return CurrentMsg;
    }

    public synchronized void putChar(int c)//得到串口读过来的数据存到字符变量中
    {
        String t="";
        t=Integer.toHexString(c);
        if(t.length()<2)
        {
            t="0"+t;
        }
        Content = Content.concat(t);
        if (LengthNeeded < Content.length())
        {
            available = true;
        }
        notifyAll();
    }
    public synchronized void cleanBuff()
    {
        Content="";
        notifyAll();
    }public synchronized boolean getIsTimeOut()
    {
        notifyAll();
        return isTimeOut;
    }
}

------解决方案--------------------
是windows和Linux下的回车换行的问题， 0D 0A是标准的回车换行符

------解决方案--------------------
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是windows和Linux下的回车换行的问题， 0D 0A是标准的回车换行符