用Java从接收器获取midi消息

import javax.sound.midi.*;

public class MidiReceiverExample {
    public static void main(String[] args) {
        try {
            // 获取默认的MIDI设备
            MidiDevice device = MidiSystem.getMidiDevice(MidiSystem.getMidiDeviceInfo()[0]);
            
            // 打开设备
            device.open();
            
            // 获取接收器
            Receiver receiver = device.getReceiver();
            
            // 创建一个MIDI消息监听器
            MidiMessageListener listener = new MidiMessageListener();
            
            // 将监听器注册到接收器
            receiver.setReceiver(listener);
            
            // 等待接收MIDI消息
            Thread.sleep(5000);
            
            // 关闭设备
            device.close();
        } catch (MidiUnavailableException | InterruptedException e) {
            e.printStackTrace();
        }
    }
}

class MidiMessageListener implements Receiver {
    @Override
    public void send(MidiMessage message, long timeStamp) {
        // 处理接收到的MIDI消息
        byte[] data = message.getMessage();
        System.out.println("Received MIDI message: " + data);
    }

    @Override
    public void close() {
        // 关闭接收器
    }
}