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 * and open the template in the editor.
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package com.dong.serialcom;

import com.dong.factory.ConstantFactory;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.TooManyListenersException;
import java.util.Vector;
import javax.comm.CommPortIdentifier;
import javax.comm.NoSuchPortException;
import javax.comm.PortInUseException;
import javax.comm.SerialPort;
import javax.comm.SerialPortEvent;
import javax.comm.SerialPortEventListener;
import javax.comm.UnsupportedCommOperationException;
/**
 *
 * @author Dong Gang
 */
public class ComBean implements SerialPortEventListener {

    static String portName;
    static int baudrate;
    static int dataBit;
    static int stopBit;
    static int parityBit;
    CommPortIdentifier portId;
    SerialPort serialPort;
    static OutputStream out;
    static InputStream in;
    private static ComBean serialComInstance = new ComBean();
    ReadThread readThread = new ReadThread();
    private byte[] dataPool = new byte[1024];
    private int[] b = new int[10240];
    private static int readBufferIndex = 0;
    private boolean readDataEnd = false;
    SerialBuffer RB;
    ReadSerial RT;
    private boolean isComProOver = false;
    private boolean isConfigureAndStart = false;
    private boolean isComTestOk = false;
    private boolean isComOpen = false;

    private ComBean() {

        portName = "";
        baudrate = 2000000;
        dataBit = SerialPort.DATABITS_8;
        parityBit = SerialPort.PARITY_NONE;
        stopBit = SerialPort.STOPBITS_1;

    }

    public static ComBean getInstances() {
        return serialComInstance;
    }

    public boolean closePort() {
        boolean rst = true;
        String infoStr = "端口关闭";
        if (isComOpen) {
            try {
                in.close();
                out.close();
                RT.stop();
                serialPort.notifyOnDataAvailable(false);
                serialPort.removeEventListener();
                serialPort.close();
                isComProOver = false;
                isConfigureAndStart = false;
                isComTestOk = false;

                if (ConstantFactory.timerRun != 0) {
                    ConstantFactory.timerRun = (int) 0;
                    ConstantFactory.timer.cancel();
                } else {
                }
            } catch (IOException e) {
                rst = false;
            }
        } else {
            rst = false;
        }

        return rst;
    }

    public String getPortName() {
        return portName;
    }

    public void setPortName(String portName) {
        ComBean.portName = portName;
    }

    public int getBaudrate() {
        return baudrate;
    }

    public void setBaudrate(int baudrate) {
        switch (baudrate) {
            case 0:
                ComBean.baudrate = 300;
                break;
            case 1:
                ComBean.baudrate = 600;
                break;
            case 2:
                ComBean.baudrate = 1200;
                break;
            case 3:
                ComBean.baudrate = 2400;
                break;
            case 4:
                ComBean.baudrate = 4800;
                break;
            case 5:
                ComBean.baudrate = 9600;
                break;
            case 6:
                ComBean.baudrate = 19200;
                break;
            case 7:
                ComBean.baudrate = 38400;
                break;
            case 8:
                ComBean.baudrate = 43000;
                break;
            case 9:
                ComBean.baudrate = 56000;
                break;
            case 10:
                ComBean.baudrate = 57600;
                break;
            case 11:
                ComBean.baudrate = 115200;
                break;
            case 12:
                ComBean.baudrate = 2000000;
            default:
                break;
        }
    }

    public int getDataBit() {
        return dataBit;
    }

    public void setDataBit(int dataBit) {
        switch (dataBit) {
            case 0:
                ComBean.dataBit = SerialPort.DATABITS_5;
                break;
            case 1:
                ComBean.dataBit = SerialPort.DATABITS_6;
                break;
            case 2:
                ComBean.dataBit = SerialPort.DATABITS_7;
                break;
            case 3:
                ComBean.dataBit = SerialPort.DATABITS_8;
                break;
            default:
                break;
        }
    }

    public int getParityBit() {
        return parityBit;
    }

    public void setParityBit(int parityBit) {
        switch (parityBit) {
            case 0:
                ComBean.parityBit = SerialPort.PARITY_NONE;
                break;
            case 1:
                ComBean.parityBit = SerialPort.PARITY_ODD;
                break;
            case 2:
                ComBean.parityBit = SerialPort.PARITY_EVEN;
                break;
            default:
                break;
        }
    }

    public int getStopBit() {
        return stopBit;
    }

    public void setStopBit(int stopBit) {
        switch (stopBit) {
            case 0:
                ComBean.stopBit = SerialPort.STOPBITS_1;
                break;
            case 1:
                ComBean.stopBit = SerialPort.STOPBITS_1_5;
                break;
            case 2:
                ComBean.stopBit = SerialPort.STOPBITS_2;
                break;
            default:
                break;
        }
    }

    public Vector getComId() {

        Vector comIdList = new Vector();
        Enumeration commId = CommPortIdentifier.getPortIdentifiers();
        CommPortIdentifier portId;

        while (commId.hasMoreElements()) {
            portId = (CommPortIdentifier) commId.nextElement();

            if (portId.getPortType() == CommPortIdentifier.PORT_SERIAL) {
                comIdList.add(portId.getName());
            }
        }
        return comIdList;
    }

    public boolean initCom() {

        ConstantFactory.infoStr = "";
        ConstantFactory.comProRun = false;
        isComOpen = false;
        try {
            portId = CommPortIdentifier.getPortIdentifier(portName);
            try {
                serialPort = (SerialPort) portId.open("Serial_Communication", 2000);
            } catch (PortInUseException e) {
                ConstantFactory.infoStr = "端口已经被占用！";
                return false;
            }
            try {
                in = new DataInputStream(serialPort.getInputStream());
                out = serialPort.getOutputStream();
            } catch (IOException e) {
                ConstantFactory.infoStr = "IO 错误！";
                return false;
            }
            try {
                serialPort.setSerialPortParams(baudrate, dataBit, stopBit, parityBit);
            } catch (UnsupportedCommOperationException e) {
                ConstantFactory.infoStr = "参数设置错误！";
                return false;
            }

            if (false) {
                try {
                    serialPort.addEventListener(this);
                } catch (TooManyListenersException e) {
                    serialPort.close();
                    ConstantFactory.infoStr = "监听错误！";
                    return false;
                }
                serialPort.notifyOnDataAvailable(true);
            }

            RB = new SerialBuffer(serialComInstance);
            RT = new ReadSerial(in, RB);
            RT.setPriority(Thread.MAX_PRIORITY);
            RT.start();

        } catch (NoSuchPortException e) {
            ConstantFactory.infoStr = "端口未找到！";
            return false;
        }
        isComOpen = true;
        return isComOpen;
        
    }

    public void serialEvent(SerialPortEvent e) {
        switch (e.getEventType()) {
            case SerialPortEvent.BI:
            case SerialPortEvent.OE:
            case SerialPortEvent.FE:
            case SerialPortEvent.PE:
            case SerialPortEvent.CD:
            case SerialPortEvent.CTS:
            case SerialPortEvent.DSR:
            case SerialPortEvent.RI:
            case SerialPortEvent.OUTPUT_BUFFER_EMPTY:
                break;
            case SerialPortEvent.DATA_AVAILABLE:
                readComm();
                break;
            default:
                break;
        }
    }

    void readComm() {
        dataAnalysis();
    }

    public void receiveData() {
        int k = 0, f = 0, s = 0, l = 0, y = 0;
        readDataEnd = false;
        try {
            b[readBufferIndex] = in.read();
            if (b[readBufferIndex] == 170) {
                readBufferIndex = 0;
                readDataEnd = true;
            } else {
                readBufferIndex++;
            }
  }
           
        } catch (IOException e) {
        }
    }

    public void dataAnalysis() {
        int c;
        try {
            c = in.read();
            b[readBufferIndex] = c;
            readBufferIndex++;
            if (c == 170) {
                int n = 0;
            }
            if (readBufferIndex == 6) {
                int m = 0;
            }
        } catch (IOException e) {
        }
    }

    class ReadThread extends Thread {

        public ReadThread() {
        }

        public void run() {
            while (!ConstantFactory.comProRun) {
                readCom();
            }
        }

        public void stopRun() {
            ConstantFactory.comProRun = false;
        }

        public void readCom() {
            byte[] dataByte = new byte[1024];
            try {
                while (in.available() > 0) {
                    int readnum = in.read(dataByte);
                }

            } catch (IOException e) {
            }
        }
    }

    public void writeCom(String wrtStr) {
        try {
            for (int i = 0; i < wrtStr.length(); i++) {
                out.write(wrtStr.charAt(i));
            }
        } catch (IOException e) {
        }
    }

    public void writeCom(byte[] wrtByte, int length) {
        try {
            for (int i = 0; i < length; i++) {
                out.write(wrtByte[i]);
            }
        } catch (IOException e) {
        }
    }

    public void writeCom(byte[] b) {
        try {
            out.write(b);

        } catch (IOException e) {
        }
    }

    public boolean getIsComProOver() {
        return isComProOver;
    }

    public void setIsComProOver(boolean isComProOver) {
        this.isComProOver = isComProOver;
    }

    public boolean getIsConfigureAndStart() {
        return isConfigureAndStart;
    }

    public void setIsConfigureAndStart(boolean isConfigureAndStart) {
        this.isConfigureAndStart = isConfigureAndStart;
    }

    public boolean getIsComTestOk() {
        return isComTestOk;
    }

    public void setIsComTestOk(boolean isComTestOk) {
        this.isComTestOk = isComTestOk;
    }
}

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package com.dong.serialcom;

import java.io.IOException;
import java.io.InputStream;

/**
 *
 * @author Dong Gang
 */
public class ReadSerial extends Thread {

    private InputStream ComPort;
    private SerialBuffer Buffer;
 

    public ReadSerial(InputStream ComPort,SerialBuffer buffer) {
        this.ComPort = ComPort;
        this.Buffer = buffer;
    }

    public void run() {
        int c;
        try {
            while (true) {
               if(0<ComPort.available()){
                     c = ComPort.read();
                     Buffer.putByte(c);
                }
               
            }
        } catch (IOException e) {
        }
    }
}