用Java写一个短信猫接口

好的，以下是一个简单的Java短信猫接口的示例代码：

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import gnu.io.CommPortIdentifier;
import gnu.io.NoSuchPortException;
import gnu.io.PortInUseException;
import gnu.io.SerialPort;
import gnu.io.SerialPortEvent;
import gnu.io.SerialPortEventListener;

public class SMSInterface implements SerialPortEventListener {

    private static final int TIME_OUT = 2000;
    private static final int DATA_RATE = 9600;

    private SerialPort serialPort;
    private InputStream input;
    private OutputStream output;
    private List<String> messages;

    public List<String> getMessages() {
        return messages;
    }

    public void initialize(String portName) {
        CommPortIdentifier portId = null;
        Enumeration<?> portEnum = CommPortIdentifier.getPortIdentifiers();

        while (portEnum.hasMoreElements()) {
            CommPortIdentifier currPortId = (CommPortIdentifier) portEnum.nextElement();
            if (currPortId.getName().equals(portName)) {
                portId = currPortId;
                break;
            }
        }

        if (portId == null) {
            System.out.println("Could not find COM port.");
            return;
        }

        try {
            serialPort = (SerialPort) portId.open(this.getClass().getName(), TIME_OUT);
            serialPort.setSerialPortParams(DATA_RATE, SerialPort.DATABITS_8, SerialPort.STOPBITS_1,
                    SerialPort.PARITY_NONE);
            input = serialPort.getInputStream();
            output = serialPort.getOutputStream();
            serialPort.addEventListener(this);
            serialPort.notifyOnDataAvailable(true);
            messages = new ArrayList<String>();
        } catch (PortInUseException | IOException | gnu.io.UnsupportedCommOperationException e) {
            System.err.println(e.toString());
        }
    }

    public void send(String phoneNumber, String message) {
        try {
            output.write(("AT+CMGF=1" + "\r\n").getBytes());
            Thread.sleep(1000);
            output.write(("AT+CMGS=\"" + phoneNumber + "\"\r\n").getBytes());
            Thread.sleep(1000);
            output.write((message + "\r\n").getBytes());
            Thread.sleep(1000);
            output.write((char) 26);
        } catch (IOException | InterruptedException e) {
            System.err.println(e.toString());
        }
    }

    @Override
    public synchronized void serialEvent(SerialPortEvent oEvent) {
        if (oEvent.getEventType() == SerialPortEvent.DATA_AVAILABLE) {
            try {
                int available = input.available();
                byte[] chunk = new byte[available];
                input.read(chunk, 0, available);
                String message = new String(chunk);
                messages.add(message);
            } catch (IOException e) {
                System.err.println(e.toString());
            }
        }
    }

    public void close() {
        if (serialPort != null) {
            serialPort.removeEventListener();
            serialPort.close();
        }
    }
}

这个示例代码使用了RXTXcomm库，你需要将它导入到你的Java项目中。这个示例代码连接到指定的串口，然后提供了发送短信的方法，可以向指定的手机号发送短信。它还实现了SerialPortEventListener接口，可以接收来自串口的数据，并将它们存储在消息列表中。