uniapp使用RFComm server 连接蓝牙代码

在uni-app中，如果你想要通过RFComm (蓝牙串口) 与蓝牙设备建立连接，你需要首先扫描并发现目标设备，然后尝试连接并配置数据通道。这里提供一个简化的示例代码片段，展示了基本的连接过程：

// 引入uniapp的Ble模块
import { Ble } from '@dcloudio/uni-app/dist/env Ble'

Page({
  data: {
    devices: [],
    selectedDevice: '',
    isConnected: false,
  },
  scanDevices() {
    ble.startScan().then((scanRes) => {
      this.setData({ devices: scanRes.devices });
    }).catch((error) => {
      console.error('Scanning failed:', error);
    });
  },
  connectToDevice(deviceAddress) {
    if (deviceAddress && !this.data.isConnected) {
      this.data.isConnected = true;
      return ble.connect(deviceAddress).then((connectRes) => {
        console.log('Connected to device:', deviceAddress);
        this.initRfcommClient(connectRes.peripheral);
      }).catch((error) => {
        console.error('Connection failed:', error);
        this.data.isConnected = false;
      });
    }
  },
  disconnectDevice() {
    if (this.data.isConnected) {
      return ble.disconnect().then(() => {
        this.data.isConnected = false;
        console.log('Disconnected');
      }).catch((error) => {
        console.error('Disconnection failed:', error);
      });
    }
  },
  initRfcommClient(peripheral) {
    const rfc通道名称 = 'rfcomm0'; // 预设的通道名
    peripheral.discoverServices([rfc通道名称]).then(({ services }) => {
      const rfcService = services.find(s => s.uuid === rfc通道名称);
      if (rfcService) {
        rfcService.discoverCharacteristics([' RFCOMM']).then(({ characteristics }) => {
          // 获取到特征后，你可以开始交互数据
          // 实际上你需要调用characteristic.writeData(data) 来发送数据
          // characteristic.readData() 来接收数据
        }).catch((error) => {
          console.error('Failed to discover characteristics:', error);
        });
      }
    }).catch((error) => {
      console.error('Failed to discover services:', error);
    });
  },
  // 页面初始化及其它生命周期方法...

  // 扫描按钮点击事件
  onScanClick() {
    this.scanDevices();
  },
  // 连接设备按钮点击事件
  onConnectClick(device) {
    this.connectToDevice(device.address);
  },
  // 断开连接按钮点击事件
  onDisconnectClick() {
    this.disconnectDevice();
  },
})