package com.runtrial.lms.rxtx;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.TooManyListenersException;
import gnu.io.CommPortIdentifier;
import gnu.io.PortInUseException;
import gnu.io.SerialPort;
import gnu.io.SerialPortEvent;
import gnu.io.SerialPortEventListener;
/**
* @项目名称 :illegalsms
* @文件名称 :SerialPort.java
* @所在包 :org.serial
* @功能描述 : 串口类
* @修改记录 :
*/
public class DSerialPort implements Runnable, SerialPortEventListener {
private String appName = "串口通讯测试[集成显卡2012]";
private int timeout = 2000;// open 端口时的等待时间
private int threadTime = 0;
private CommPortIdentifier commPort;
private SerialPort serialPort;
private InputStream inputStream;
private OutputStream outputStream;
/**
* @方法名称 :listPort
* @功能描述 :列出所有可用的串口
* @返回值类型 :void
*/
@SuppressWarnings("rawtypes")
public void listPort() {
CommPortIdentifier cpid;
Enumeration en = CommPortIdentifier.getPortIdentifiers();
System.out.println("now to list all Port of this PC:" + en);
while (en.hasMoreElements()) {
cpid = (CommPortIdentifier) en.nextElement();
if (cpid.getPortType() == CommPortIdentifier.PORT_SERIAL) {
System.out.println(cpid.getName() + ", " + cpid.getCurrentOwner());
}
}
}
/**
* @方法名称 :selectPort
* @功能描述 :选择一个端口,比如:COM1
* @返回值类型 :void
* @param portName
*/
@SuppressWarnings("rawtypes")
public void selectPort(String portName) {
this.commPort = null;
CommPortIdentifier cpid;
Enumeration en = CommPortIdentifier.getPortIdentifiers();
while (en.hasMoreElements()) {
cpid = (CommPortIdentifier) en.nextElement();
if (cpid.getPortType() == CommPortIdentifier.PORT_SERIAL && cpid.getName().equals(portName)) {
this.commPort = cpid;
break;
}
}
openPort();
}
/**
* @方法名称 :openPort
* @功能描述 :打开SerialPort
* @返回值类型 :void
*/
private void openPort() {
if (commPort == null)
log(String.format("无法找到名字为'%1$s'的串口!", commPort.getName()));
else {
log("端口选择成功,当前端口:" + commPort.getName() + ",现在实例化 SerialPort:");
try {
serialPort = (SerialPort) commPort.open(appName, timeout);
log("实例 SerialPort 成功!");
} catch (PortInUseException e) {
throw new RuntimeException(String.format("端口'%1$s'正在使用中!", commPort.getName()));
}
}
}
/**
* @方法名称 :checkPort
* @功能描述 :检查端口是否正确连接
* @返回值类型 :void
*/
private void checkPort() {
if (commPort == null)
throw new RuntimeException("没有选择端口,请使用 " + "selectPort(String portName) 方法选择端口");
if (serialPort == null) {
throw new RuntimeException("SerialPort 对象无效!");
}
}
/**
* @方法名称 :write
* @功能描述 :向端口发送数据,请在调用此方法前 先选择端口,并确定SerialPort正常打开!
* @返回值类型 :void
* @param message
*/
public void write(String message) {
checkPort();
try {
outputStream = new BufferedOutputStream(serialPort.getOutputStream());
} catch (IOException e) {
throw new RuntimeException("获取端口的OutputStream出错:" + e.getMessage());
}
try {
outputStream.write(message.getBytes("GBK"), 0, message.getBytes("GBK").length);
//outputStream.write(message.getBytes());
log("信息发送成功!"+new String(message.getBytes()));
} catch (IOException e) {
throw new RuntimeException("向端口发送信息时出错:" + e.getMessage());
} finally {
try {
outputStream.close();
} catch (Exception e) {
}
}
}
/**
* @方法名称 :startRead
* @功能描述 :开始监听从端口中接收的数据
* @返回值类型 :void
* @param time
* 监听程序的存活时间,单位为秒,0 则是一直监听
*/
public void startRead(int time) {
checkPort();
try {
inputStream = new BufferedInputStream(serialPort.getInputStream());
} catch (IOException e) {
throw new RuntimeException("获取端口的InputStream出错:" + e.getMessage());
}
try {
serialPort.addEventListener(this);
} catch (TooManyListenersException e) {
throw new RuntimeException(e.getMessage());
}
serialPort.notifyOnDataAvailable(true);
log(String.format("开始监听来自'%1$s'的数据--------------", commPort.getName()));
if (time > 0) {
this.threadTime = time * 1000;
Thread t = new Thread(this);
t.start();
log(String.format("监听程序将在%1$d秒后关闭。。。。", threadTime));
}
}
/**
* @方法名称 :close
* @功能描述 :关闭 SerialPort
* @返回值类型 :void
*/
public void close() {
serialPort.close();
serialPort = null;
commPort = null;
}
public void log(String msg) {
System.out.println(appName + " --> " + msg);
}
/**
* 数据接收的监听处理函数
*/
@Override
public void serialEvent(SerialPortEvent arg0) {
switch (arg0.getEventType()) {
case SerialPortEvent.BI:/* Break interrupt,通讯中断 */
case SerialPortEvent.OE:/* Overrun error,溢位错误 */
case SerialPortEvent.FE:/* Framing error,传帧错误 */
case SerialPortEvent.PE:/* Parity error,校验错误 */
case SerialPortEvent.CD:/* Carrier detect,载波检测 */
case SerialPortEvent.CTS:/* Clear to send,清除发送 */
case SerialPortEvent.DSR:/* Data set ready,数据设备就绪 */
case SerialPortEvent.RI:/* Ring indicator,响铃指示 */
case SerialPortEvent.OUTPUT_BUFFER_EMPTY:/*
* Output buffer is
* empty,输出缓冲区清空
*/
break;
case SerialPortEvent.DATA_AVAILABLE:/*
* Data available at the serial
* port,端口有可用数据。读到缓冲数组,输出到终端
*/
byte[] readBuffer = new byte[1024];
String readStr = "";
String s2 = "";
try {
while (inputStream.available() > 0) {
inputStream.read(readBuffer);
readStr += new String(readBuffer).trim();
}
s2 = new String(readBuffer).trim();
log("接收到端口返回数据(长度为" + readStr.length() + "):" + readStr);
log(s2);
} catch (IOException e) {
}
}
}
@Override
public void run() {
try {
Thread.sleep(threadTime);
serialPort.close();
log(String.format("端口''监听关闭了!", commPort.getName()));
} catch (Exception e) {
e.printStackTrace();
}
}
}package com.runtrial.lms.rxtx;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.TooManyListenersException;
import gnu.io.CommPortIdentifier;
import gnu.io.PortInUseException;
import gnu.io.SerialPort;
import gnu.io.SerialPortEvent;
import gnu.io.SerialPortEventListener;
/**
* @项目名称 :illegalsms
* @文件名称 :SerialPort.java
* @所在包 :org.serial
* @功能描述 : 串口类
* @修改记录 :
*/
public class DSerialPort implements Runnable, SerialPortEventListener {
private String appName = "串口通讯测试[集成显卡2012]";
private int timeout = 2000;// open 端口时的等待时间
private int threadTime = 0;
private CommPortIdentifier commPort;
private SerialPort serialPort;
private InputStream inputStream;
private OutputStream outputStream;
/**
* @方法名称 :listPort
* @功能描述 :列出所有可用的串口
* @返回值类型 :void
*/
@SuppressWarnings("rawtypes")
public void listPort() {
CommPortIdentifier cpid;
Enumeration en = CommPortIdentifier.getPortIdentifiers();
System.out.println("now to list all Port of this PC:" + en);
while (en.hasMoreElements()) {
cpid = (CommPortIdentifier) en.nextElement();
if (cpid.getPortType() == CommPortIdentifier.PORT_SERIAL) {
System.out.println(cpid.getName() + ", " + cpid.getCurrentOwner());
}
}
}
/**
* @方法名称 :selectPort
* @功能描述 :选择一个端口,比如:COM1
* @返回值类型 :void
* @param portName
*/
@SuppressWarnings("rawtypes")
public void selectPort(String portName) {
this.commPort = null;
CommPortIdentifier cpid;
Enumeration en = CommPortIdentifier.getPortIdentifiers();
while (en.hasMoreElements()) {
cpid = (CommPortIdentifier) en.nextElement();
if (cpid.getPortType() == CommPortIdentifier.PORT_SERIAL && cpid.getName().equals(portName)) {
this.commPort = cpid;
break;
}
}
openPort();
}
/**
* @方法名称 :openPort
* @功能描述 :打开SerialPort
* @返回值类型 :void
*/
private void openPort() {
if (commPort == null)
log(String.format("无法找到名字为'%1$s'的串口!", commPort.getName()));
else {
log("端口选择成功,当前端口:" + commPort.getName() + ",现在实例化 SerialPort:");
try {
serialPort = (SerialPort) commPort.open(appName, timeout);
log("实例 SerialPort 成功!");
} catch (PortInUseException e) {
throw new RuntimeException(String.format("端口'%1$s'正在使用中!", commPort.getName()));
}
}
}
/**
* @方法名称 :checkPort
* @功能描述 :检查端口是否正确连接
* @返回值类型 :void
*/
private void checkPort() {
if (commPort == null)
throw new RuntimeException("没有选择端口,请使用 " + "selectPort(String portName) 方法选择端口");
if (serialPort == null) {
throw new RuntimeException("SerialPort 对象无效!");
}
}
/**
* @方法名称 :write
* @功能描述 :向端口发送数据,请在调用此方法前 先选择端口,并确定SerialPort正常打开!
* @返回值类型 :void
* @param message
*/
public void write(String message) {
checkPort();
try {
outputStream = new BufferedOutputStream(serialPort.getOutputStream());
} catch (IOException e) {
throw new RuntimeException("获取端口的OutputStream出错:" + e.getMessage());
}
try {
outputStream.write(message.getBytes("GBK"), 0, message.getBytes("GBK").length);
//outputStream.write(message.getBytes());
log("信息发送成功!"+new String(message.getBytes()));
} catch (IOException e) {
throw new RuntimeException("向端口发送信息时出错:" + e.getMessage());
} finally {
try {
outputStream.close();
} catch (Exception e) {
}
}
}
/**
* @方法名称 :startRead
* @功能描述 :开始监听从端口中接收的数据
* @返回值类型 :void
* @param time
* 监听程序的存活时间,单位为秒,0 则是一直监听
*/
public void startRead(int time) {
checkPort();
try {
inputStream = new BufferedInputStream(serialPort.getInputStream());
} catch (IOException e) {
throw new RuntimeException("获取端口的InputStream出错:" + e.getMessage());
}
try {
serialPort.addEventListener(this);
} catch (TooManyListenersException e) {
throw new RuntimeException(e.getMessage());
}
serialPort.notifyOnDataAvailable(true);
log(String.format("开 始监听来自'%1$s'的数据--------------", commPort.getName()));
if (time > 0) {
this.threadTime = time * 1000;
Thread t = new Thread(this);
t.start();
log(String.format("监听程序将在%1$d秒后关闭。。。。", threadTime));
}
}
/**
* @方法名称 :close
* @功能描述 :关闭 SerialPort
* @返回值类型 :void
*/
public void close() {
serialPort.close();
serialPort = null;
commPort = null;
}
public void log(String msg) {
System.out.println(appName + " --> " + msg);
}
/**
* 数据接收的监听处理函数
*/
@Override
public void serialEvent(SerialPortEvent arg0) {
switch (arg0.getEventType()) {
case SerialPortEvent.BI:/* Break interrupt,通讯中断 */
case SerialPortEvent.OE:/* Overrun error,溢位错误 */
case SerialPortEvent.FE:/* Framing error,传帧错误 */
case SerialPortEvent.PE:/* Parity error,校验错误 */
case SerialPortEvent.CD:/* Carrier detect,载波检测 */
case SerialPortEvent.CTS:/* Clear to send,清除发送 */
case SerialPortEvent.DSR:/* Data set ready,数据设备就绪 */
case SerialPortEvent.RI:/* Ring indicator,响铃指示 */
case SerialPortEvent.OUTPUT_BUFFER_EMPTY:/*
* Output buffer is
* empty,输出缓冲区清空
*/
break;
case SerialPortEvent.DATA_AVAILABLE:/*
* Data available at the serial
* port,端口有可用数据。读到缓冲数组,输出到终端
*/
byte[] readBuffer = new byte[1024];
String readStr = "";
String s2 = "";
try {
while (inputStream.available() > 0) {
inputStream.read(readBuffer);
readStr += new String(readBuffer).trim();
}
s2 = new String(readBuffer).trim();
log("接收到端口返回数据(长度为" + readStr.length() + "):" + readStr);
log(s2);
} catch (IOException e) {
}
}
}
@Override
public void run() {
try {
Thread.sleep(threadTime);
serialPort.close();
log(String.format("端口''监听关闭了!", commPort.getName()));
} catch (Exception e) {
e.printStackTrace();
}
}
public static void main(String[] args) {
DSerialPort dp = new DSerialPort();
dp.listPort();
dp.selectPort("COM2");
dp.write("我要报警啦");
dp.startRead(30);
}
}
结果: