java 基于串口的聊天工具读写不了串口中的数据（类似于QQ）（求助）
package load;import java.net.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.JDialog;
import CommAccess.ComAccess;
import Dlg.DlgAbout;
@SuppressWarnings("serial")
public class jiemian extends JFrame implements ActionListener,Runnable
{ //定义qq界面所需的组件
private ComAccess ca = new ComAccess(3);
static JPanel p1 = new JPanel(), p2 = new JPanel();
TextArea output = new TextArea("", 20, 18, TextArea.SCROLLBARS_BOTH),
input = new TextArea("", 20, 18, TextArea.SCROLLBARS_VERTICAL_ONLY);
JButton b_biaoqing = new JButton("表情");
JButton b_zhiti = new JButton("字体");
JButton b_zhitiys = new JButton("字体颜色");
JButton b_jilu = new JButton("清空消息");
JButton b_fasong = new JButton("发送");
JLabel youbian = new JLabel();
Color ys = new Color(157, 242, 173);
caidan cd = new caidan(); //获得菜单对象
Thread thread2=new Thread(this);
// 显示“关于”对话框
public void showAbout(){
DlgAbout ad = new DlgAbout(this);
ad.show();
}
public jiemian()
{ //布局聊天界面
super("zigbee聊天工具(FFD端)");
ca.Initialize();//初始化串口以及打开串口
thread2.start();
setMenuBar(cd);
setResizable(false);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
b_jilu.addActionListener(this);
b_fasong.addActionListener(this);
b_biaoqing.addActionListener(this);
b_zhiti.addActionListener(this);
b_zhitiys.addActionListener(this);
Container cc = getContentPane();
setBounds(150, 150, 600, 510);
cc.setLayout(new BorderLayout());
output.setBackground(Color.white);
output.setForeground(Color.blue);
output.setBounds(4, 0, 420, 250);
output.setFont(new Font("楷体", Font.PLAIN, 14));
output.setEditable(false);
p1.setLayout(null);
p1.setBackground(new Color(220, 220, 220));
p1.add(output);
b_biaoqing.setBounds(4, 254, 60, 30);
p1.add(b_biaoqing);
b_zhiti.setBounds(65, 254, 60, 30);
p1.add(b_zhiti);
b_zhitiys.setBounds(126, 254, 90, 30);
p1.add(b_zhitiys);
input.setFont(new Font("楷体", Font.PLAIN, 14));
input.setBackground(Color.white);
input.setForeground(Color.blue);
input.setBounds(4, 290, 420, 125);
p1.add(input);
b_jilu.setBounds(4, 420, 100, 30);
p1.add(b_jilu);
b_fasong.setBounds(330, 420, 60, 30);
p1.add(b_fasong);
p1.setBackground(ys);
cc.add(p1, "Center");
youbian.setIcon(new ImageIcon("photo/11.jpg"));
p2.add(youbian);
p2.setBackground(ys);
p2.setLayout(new GridLayout(1, 2, 1, 10));
cc.add(p2, "East");
setVisible(true);
}
public jiemian(jiemian jm) {}
//执行按钮动作的方法
public void actionPerformed(ActionEvent e)
{
if (e.getSource() == b_fasong)
{
String ss = input.getText();
if (ss.equals("")){ jiemian test = new jiemian(this); }
else { sendData1(); }
}
else if (e.getSource() == b_zhiti)
{
ziti zt = new ziti(this);
input.setFont(zt.f);
output.setFont(zt.f);
}
else if (e.getSource() == b_zhitiys)
{
Color newcolor = JColorChooser.showDialog(this, "调色板",
input.getForeground());
input.setForeground(newcolor);
output.setForeground(newcolor);
}
else if (e.getSource() == b_jilu) { output.setText(""); }
}
// 向串口发送数据，参见HMS中函数msgSent的注释
//发送及接受数据的方法
void sendData1()
{
int len;
try
{
Calendar rightNow = Calendar.getInstance(); //获取当前系统日期和时间
int hour = rightNow.get(Calendar.HOUR_OF_DAY); //获取当前时间的整点数
int year = rightNow.get(Calendar.YEAR);
int month = rightNow.get(Calendar.MONTH) + 1;
int day = rightNow.get(Calendar.DATE);
int minute = rightNow.get(Calendar.MINUTE);
int second = rightNow.get(Calendar.SECOND);
String msg = input.getText();
if (msg.equals("")) { return; }
input.setText("");
//String ad = IPAdd.getText();
InetAddress tea = InetAddress.getLocalHost();
String asd = tea.getHostAddress(); //发送方的IP地址
output.append(cd.nicheng1 + "(" + asd + ") " + year
+ "-" + month + "-"
+ day + " "
+ hour + ":"
+ minute + ":"
+ second + "\n" + " " + msg
+ "\n");
msg = cd.nicheng2 + "(" + asd + ") " + year
+ "-" + month + "-"
+ day + " "
+ hour + ":"
+ minute + ":"
+ second + "\n" + " " + msg + "\n";
len=msg.length();
ca.WritePort(msg.substring(0,len));
// 延时，防止发送失败
try {Thread.sleep(2000);}
catch (InterruptedException e) {e.printStackTrace();}
}
catch (Exception e) { }
}
//等待接受数据的方法
public void run()
{
try
{
while(true)
{//每隔一秒读取串口数据
try {Thread.sleep(1000);}
catch (InterruptedException e) {e.printStackTrace();}
for (int i = 5; i <= 10; i++)
{
String s=ca.ReadPort(i);
output.append(s+"\n");
}
}
}
catch (Exception e) { }
此次界面代码是不重要的代码省略了.............................
}
为什么读写不了串口
串口读写方法：
ComAccess.java代码
package CommAccess;
import java.io.*;
import javax.comm.*;
public class ComAccess
{
static String PortName;
CommPortIdentifier portId;
SerialPort serialPort;
static OutputStream out;
static InputStream in;
ComBuffer CB;
ReadCom RT;
boolean bCanExit = true;
//打开由PortID指定的端口,即与GSM模块相连的串口
public ComAccess(int PortID)
{
PortName = "COM" + PortID;
}
//初始化串口
public int Initialize()
{
int InitSuccess = 1;
int InitFail = -1;
try
{
portId = CommPortIdentifier.getPortIdentifier(PortName);
try
{
serialPort = (SerialPort)portId.open("Serial_Communication", 2000);
}
catch (PortInUseException e)
{
System.out.println("try to open serialPort error：portId.open()");
return InitFail;
}
try
{
//System.out.println("try to stream");
in = serialPort.getInputStream();
out = serialPort.getOutputStream();
}
catch (IOException e)
{
System.out.println("try to ini stream error：getInputStream()");
return InitFail;
}
try
{
serialPort.setSerialPortParams(19200,
SerialPort.DATABITS_8,
SerialPort.STOPBITS_1,
SerialPort.PARITY_NONE);
}
catch (UnsupportedCommOperationException e)
{
System.out.println("try to config port error：setSerialPortParams()");
return InitFail;
}
}
catch (NoSuchPortException e)
{
return InitFail;
}
CB = new ComBuffer(); //创建一个读串口缓充区
RT = new ReadCom(CB,in); //创建一个读线程
RT.start(); //线程开始运行
return InitSuccess;
}
public String ReadPort(int Length)
{
String Msg;
Msg =CB.GetMsg(Length);
return Msg;
}
public void WritePort(String Msg)
{
int i;
try
{
bCanExit = false; //发送进行中是不允许退出的
for (i = 0; i < Msg.length() ; i++)
{
out.write(Msg.charAt(i));
try {Thread.sleep(100);}
catch (InterruptedException e) {e.printStackTrace();}
}
bCanExit = true;
}
catch (IOException e){}
}
public void ClosePort()
{
// 等待，直到可以退出为止
while(!bCanExit)
{
try {Thread.sleep(100);}
catch (InterruptedException e) {e.printStackTrace();}
}
RT.interrupt();
RT.stop();
serialPort.close();
}
}
ComBuffer.java代码
package CommAccess;
public class ComBuffer
{
private String Content = "";
private String CurrentMsg, TempContent;
private boolean available = false;
private int LengthNeeded = 1;
private int i = 0;
// 读取一行数据,非阻塞
public synchronized String GetMsg(int Length)
{
LengthNeeded = Length;
notifyAll();
if (LengthNeeded > Content.length())
{
available = false;
while (available == false)
{
try
{
wait(1000);
i++;
//System.out.println("第"+i+"次等待");
if(i>5){
CurrentMsg="overtime";
return CurrentMsg;
}
}
catch (InterruptedException e) { }
}
}
CurrentMsg = Content.substring(0, LengthNeeded);
TempContent = Content.substring(LengthNeeded);
Content = TempContent;
LengthNeeded = 1;
notifyAll();
return CurrentMsg;
}
// 将一个字符保存到串口缓充区
public synchronized void PutChar(int c)
{
Character d = new Character((char) c);
Content = Content.concat(d.toString());
if (LengthNeeded < Content.length())
{
available = true;
}
notifyAll();
}
}
ReadCom.java代码
package CommAccess;
import java.io.IOException;
import java.io.InputStream;
public class ReadCom extends Thread
{
private ComBuffer ComBuffer;
private InputStream ComPort;
public ReadCom(ComBuffer CB, InputStream Port)
{
ComBuffer = CB;
ComPort = Port;
}
public void run()
{
int c;
try
{
while (true)
{
c = ComPort.read();
ComBuffer.PutChar(c);
}
} catch (IOException e) {}
}
}
这到底是为什么读取不了串口的数据
希望高手能帮忙，我是个新手
我QQ869440098
[ 本帖最后由 妖孽玉流星 于 2011-5-1 19:19 编辑 ]
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