Java物联网硬件开发指南：实现智能家居控制功能

import java.io.IOException;

import javax.bluetooth.BluetoothStateException;
import javax.bluetooth.DiscoveryAgent;
import javax.bluetooth.LocalDevice;
import javax.bluetooth.RemoteDevice;

public class LightControl {

    private RemoteDevice device;
    private boolean lightOn;

    public LightControl(String address) throws BluetoothStateException {
        device = LocalDevice.getLocalDevice().getRemoteDevice(address);
        lightOn = false;
    }

    public void turnOn() throws IOException {
        // 通过蓝牙发送指令给硬件设备，控制灯光开启
        // 示例代码仅作为演示用途，真实的指令需要根据硬件设备的通信协议来编写
        // 例如：device.sendCommand("ON");
        lightOn = true;
    }

    public void turnOff() throws IOException {
        // 通过蓝牙发送指令给硬件设备，控制灯光关闭
        // 示例代码仅作为演示用途，真实的指令需要根据硬件设备的通信协议来编写
        // 例如：device.sendCommand("OFF");
        lightOn = false;
    }

    public boolean isLightOn() {
        return lightOn;
    }

    public static void main(String[] args) {
        try {
            LightControl control = new LightControl("00:11:22:33:44:55"); // 替换成真实的蓝牙设备地址
            control.turnOn(); // 开启灯光
            System.out.println("灯光状态：" + control.isLightOn());
            control.turnOff(); // 关闭灯光
            System.out.println("灯光状态：" + control.isLightOn());
        } catch (BluetoothStateException | IOException e) {
            e.printStackTrace();
        }
    }

}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class TemperatureControl {

    private double temperature;

    public double getTemperature() {
        // 获取温度传感器的数据
        // 示例代码仅作为演示用途，真实的数据获取需要根据硬件设备的通信协议来编写
        // 例如：temperature = sensor.getValue();
        temperature = 25.0;
        return temperature;
    }

    public void turnOnAirConditioner() throws IOException {
        // 如果温度高于设定的阈值，则通过Java程序控制空调开启
        if (temperature > 25.0) {
            // 控制空调开启
        }
    }

    public void turnOffAirConditioner() throws IOException {
        // 如果温度低于设定的阈值，则通过Java程序控制空调关闭
        if (temperature < 25.0) {
            // 控制空调关闭
        }
    }

    public static void main(String[] args) {
        TemperatureControl control = new TemperatureControl();
        double temperature = control.getTemperature();
        System.out.println("当前温度：" + temperature);
        try {
            control.turnOnAirConditioner(); // 开启空调
            control.turnOffAirConditioner(); // 关闭空调
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}