小程序获取周围IBeacon设备的方法

onShow : function(){
 var that = this;
 //监测蓝牙状态的改变
 wx.onBluetoothAdapterStateChange(function (res) {
 if (res.available) {//如果用户打开蓝牙，开始搜索IBeacon
 searchBeacon();
 }
 })
 
 //搜索beacons
 searchBeacon();
 //搜索函数
 function searchBeacon() {
 //检测蓝牙状态
 wx.openBluetoothAdapter({
 success: function (res) {//蓝牙状态：打开
 wx.startBeaconDiscovery({//开始搜索附近的iBeacon设备
 uuids: ['FDA50693-A4E2-4FB1-AFCF-C6EB077825'],//参数uuid
 success: function (res) {
 wx.onBeaconUpdate(function (res) {//监听 iBeacon 设备的更新事件 
 //封装请求数据 
 var beacons = res.beacons;
 var reqContent = {};
 var bleArray = [];
 for (var i = 0; i < beacons.length; i++) {
 var bleObj = {};
 bleObj.distance = beacons[i].accuracy;
 bleObj.rssi = beacons[i].rssi;
 bleObj.mac = beacons[i].major + ":" + beacons[i].minor;
 bleArray.push(bleObj);
 }
 reqContent.ble = bleArray;
 //请求后台向redis插入数据
 redisSave(reqContent);
 });
 },
 fail: function (res) {
 //先关闭搜索再重新开启搜索,这一步操作是防止重复wx.startBeaconDiscovery导致失败
 stopSearchBeacom();
 }
 })
 },
 fail: function (res) {//蓝牙状态：关闭
 wx.showToast({ title: "请打开蓝牙", icon: "none", duration: 2000 })
 }
 })
 }
 function redisSave(reqContent) {
 wx.request({
 url: "https://map.intmote.com/LocateServer/location.action",
 data: JSON.stringify(reqContent),
 method: 'POST',
 header: {
 'Content-type': 'application/json'
 },
 success: function (res) {
 // wx.showToast({ title: "seccess" })
 },
 fail: function (res) {
 // wx.showToast({ title: "1" })
 }
 });
 }
 //关闭成功后开启搜索
 function stopSearchBeacom() {
 wx.stopBeaconDiscovery({
 success: function () {
 searchBeacon();
 }
 })
 } 
 },