Java語言是一門十分優(yōu)秀的編程語言，為我們提供了豐富的類庫和開發(fā)工具，能夠輕松地開發(fā)出許多高效的應(yīng)用程序。當(dāng)我們需要控制一些硬件設(shè)備時，Java就需要和單片機進行通訊了。那么Java與單片機通訊的具體實現(xiàn)方式是什么呢？

Java與單片機通訊的主要方式有兩種：串口通訊和網(wǎng)絡(luò)通訊。

串口通訊：

import gnu.io.*;  //導(dǎo)入RXTXcomm.jar包
public class SerialPortUtil {
public static CommPortIdentifier getPort(String portName) throws NoSuchPortException {
return CommPortIdentifier.getPortIdentifier(portName);
}
public static SerialPort openPort(CommPortIdentifier portIdentifier, String appName, int baudRate, int databits, int stopbits, int parity) throws PortInUseException, UnsupportedCommOperationException {
SerialPort serialPort = (SerialPort) portIdentifier.open(appName, 2000);
serialPort.setSerialPortParams(baudRate, databits, stopbits, parity);
return serialPort;
}
public static void closePort(SerialPort serialPort) {
if (serialPort != null) {
serialPort.close();
}
}
}

網(wǎng)絡(luò)通訊：

import java.net.*;
import java.io.*;
public class NetUtil {
public static Socket connect(String serverAddress, int serverPort) throws IOException {
Socket socket = new Socket(serverAddress, serverPort);
return socket;
}
public static void send(Socket socket, byte[] data) throws IOException {
OutputStream outputStream = socket.getOutputStream();
outputStream.write(data);
outputStream.flush();
}
public static byte[] receive(Socket socket, int count) throws IOException {
byte[] data = new byte[count];
InputStream inputStream = socket.getInputStream();
int readCount = inputStream.read(data);
if (readCount != count) {
throw new IOException("Fail to receive data.");
}
return data;
}
public static void close(Socket socket) throws IOException {
if (socket != null) {
socket.close();
}
}
}

以上就是Java與單片機通訊的兩種方式，通過串口通訊或者網(wǎng)絡(luò)通訊，我們可以輕松地控制各種硬件設(shè)備，實現(xiàn)豐富多彩的應(yīng)用程序。