当Eclipse IDE与Arduino接口时,Java运行时环境::检测到一个致命错误
我在EclipseIDE与Arduino接口时遇到了问题。我已经完成了在Arduino和Eclipse IDE之间进行通信所需的所有过程(比如安装Rxtx.jar和build path,然后在Eclipse工作区文件夹中复制serial.dll和parallel.dll文件…) 我还检查了ArduinoIDE和Eclipse代码中的Arduino COM端口配置 但我还是在Eclipse控制台中收到了这种消息当Eclipse IDE与Arduino接口时,Java运行时环境::检测到一个致命错误,java,eclipse,arduino,rxtx,Java,Eclipse,Arduino,Rxtx,我在EclipseIDE与Arduino接口时遇到了问题。我已经完成了在Arduino和Eclipse IDE之间进行通信所需的所有过程(比如安装Rxtx.jar和build path,然后在Eclipse工作区文件夹中复制serial.dll和parallel.dll文件…) 我还检查了ArduinoIDE和Eclipse代码中的Arduino COM端口配置 但我还是在Eclipse控制台中收到了这种消息 我的Eclipse IDE Java代码如下: (我的Arduino端口是COM5
我的Eclipse IDE Java代码如下: (我的Arduino端口是COM5,使用windows 10 x64位。)
我的简单Arduino代码如下:
void setup(){
Serial.begin(9600);
}
void loop(){
Serial.println("Hello world");
delay(1000);
}
请给出解决此问题的建议
谢谢。我对Java 9也有同样的问题,当我改回Java 8时,它就可以工作了。
另一个解决方案,使用它对我有用…您确定您有适合64位Java的DLL吗?感谢您的建议…从您建议的链接中,我下载了rxtx.jar文件和DLL,并将其替换到工作区中。。。。现在我没有收到RXTX不匹配的警告消息…这是件好事…但整个错误消息的其余部分仍然是原来的@PURVILVAGHELA这个问题仍然是一个悬而未决的问题,因为您接受的答案没有解释这个错误的原因。请不要接受不完整的答案。可能重复我在OpenJDK 11中遇到的jSerialComm同样的问题您可以报告一个错误,希望他们能找到解决方案you@alex_z您可能需要查看以下内容:
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.OutputStream;
import gnu.io.CommPortIdentifier;
import gnu.io.SerialPort;
import gnu.io.SerialPortEvent;
import gnu.io.SerialPortEventListener;
import java.util.Enumeration;
public class SerialTest implements SerialPortEventListener {
SerialPort serialPort;
/** The port we're normally going to use. */
private static final String PORT_NAMES[] = {
"/dev/tty.usbserial-A9007UX1", // Mac OS X
"/dev/ttyACM0", // Raspberry Pi
"/dev/ttyUSB0", // Linux
"COM5", // Windows
};
/**
* A BufferedReader which will be fed by a InputStreamReader
* converting the bytes into characters
* making the displayed results codepage independent
*/
private BufferedReader input;
/** The output stream to the port */
private OutputStream output;
/** Milliseconds to block while waiting for port open */
private static final int TIME_OUT = 2000;
/** Default bits per second for COM port. */
private static final int DATA_RATE = 9600;
public void initialize() {
// the next line is for Raspberry Pi and
// gets us into the while loop and was suggested here was suggested http://www.raspberrypi.org/phpBB3/viewtopic.php?f=81&t=32186
// System.setProperty("gnu.io.rxtx.SerialPorts", "/dev/ttyACM0");
CommPortIdentifier portId = null;
Enumeration portEnum = CommPortIdentifier.getPortIdentifiers();
//First, Find an instance of serial port as set in PORT_NAMES.
while (portEnum.hasMoreElements()) {
CommPortIdentifier currPortId = (CommPortIdentifier) portEnum.nextElement();
for (String portName : PORT_NAMES) {
if (currPortId.getName().equals(portName)) {
portId = currPortId;
break;
}
}
}
if (portId == null) {
System.out.println("Could not find COM port.");
return;
}
try {
// open serial port, and use class name for the appName.
serialPort = (SerialPort) portId.open(this.getClass().getName(),
TIME_OUT);
// set port parameters
serialPort.setSerialPortParams(DATA_RATE,
SerialPort.DATABITS_8,
SerialPort.STOPBITS_1,
SerialPort.PARITY_NONE);
// open the streams
input = new BufferedReader(new InputStreamReader(serialPort.getInputStream()));
output = serialPort.getOutputStream();
// add event listeners
serialPort.addEventListener(this);
serialPort.notifyOnDataAvailable(true);
} catch (Exception e) {
System.err.println(e.toString());
}
}
/**
* This should be called when you stop using the port.
* This will prevent port locking on platforms like Linux.
*/
public synchronized void close() {
if (serialPort != null) {
serialPort.removeEventListener();
serialPort.close();
}
}
/**
* Handle an event on the serial port. Read the data and print it.
*/
public synchronized void serialEvent(SerialPortEvent oEvent) {
if (oEvent.getEventType() == SerialPortEvent.DATA_AVAILABLE) {
try {
String inputLine=input.readLine();
System.out.println(inputLine);
} catch (Exception e) {
System.err.println(e.toString());
}
}
// Ignore all the other eventTypes, but you should consider the other ones.
}
public static void main(String[] args) throws Exception {
SerialTest main = new SerialTest();
main.initialize();
Thread t=new Thread() {
public void run() {
//the following line will keep this app alive for 1000 seconds,
//waiting for events to occur and responding to them (printing incoming messages to console).
try {Thread.sleep(1000000);} catch (InterruptedException ie) {}
}
};
t.start();
System.out.println("Started");
}
void setup(){
Serial.begin(9600);
}
void loop(){
Serial.println("Hello world");
delay(1000);
}