Uncaught java.io.IOException: read failed, socket might closed or timeout, read ret: -1;at android.bluetooth.BluetoothSocket.connect at index.html:1
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>打印机配对</title>
<meta name="viewport" content="width=device-width, initial-scale=1,maximum-scale=1,user-scalable=no">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
<link href="./css/mui.min.css" rel="stylesheet" />
<style>
.title {
margin: 20px 15px 7px;
color: #6d6d72;
font-size: 15px;
}
.mui-bar-nav {
background: #004A86;
}
.mui-icon-back:before,
.mui-icon-left-nav:before,
.mui-bar .mui-title {
color: #ffffff;
}
.mui-content>.mui-table-view:first-child {
margin-top: 0px;
}
.mui-btn {
padding: 1px 1px;
}
/*.mui-btn-primary{ border: 1px solid #004A86; background: #004A86;}*/
.mui-icon-search:before {
font-size: 16px;
}
.mui-table-view-cell{
height: 40px;
margin-top: 10px;
background-color: orange;
}
</style>
</head>
<body>
<div id="app" class="mui-off-canvas-wrap mui-slide-in">
<header id="header" class="mui-bar mui-bar-nav" style="height: 44px;">
<a class="mui-action-back mui-icon mui-icon-back mui-pull-left"></a>
<h1 class="mui-title">打印机配对</h1>
</header>
<div class="mui-content">
<ul class="mui-table-view">
<li class="mui-table-view-cell" style=" height: 45px;">
<span>搜索设备</span>
<div class="mui-btn">
<input id="bt1" class="mui-icon mui-icon-search" type="button" value="搜索设备" onclick="searchDevices('a')">
<!--<span class="mui-icon mui-icon-search"> 搜索</span>-->
</div>
</li>
</ul>
<div class="title">未配对蓝牙设备</div>
<ul class="mui-table-view" id="list1">
<li class="mui-table-view-cell">无</li>
<!--<li class="mui-table-view-cell">Item 2</li>
<li class="mui-table-view-cell">Item 3</li>-->
</ul>
<div class="title">已配对蓝牙设备</div>
<ul class="mui-table-view" id="list2">
<li class="mui-table-view-cell">无</li>
<!--<li class="mui-table-view-cell">Item 2</li>
<li class="mui-table-view-cell">Item 3</li>-->
</ul>
</div>
<!--<header id="header" class="mui-bar mui-bar-nav" style="height: 44px;">
<a class="mui-action-back mui-icon mui-icon-back mui-pull-left"></a>
<h1 class="mui-title">物料清单.</h1>
</header>
<div id="pullrefresh" class="mui-content">
<a href="new_file.html">其他测试</a>
<p><input id="bt1" type="button" value="搜索设备" onclick="searchDevices('a')"></p>
</button>
</div>
<div>
未配对蓝牙设备
<ul id="list1">
</ul>
</div>
<div>
已配对蓝牙设备
<ul id="list2">
</ul>
</div>-->
</div>
</body>
<script type="text/javascript" src="./js/mui.min.js"></script>
<!-- <script type="text/javascript" src="../js/common/config.js"></script>
<script type="text/javascript" src="../js/common/global.js"></script>
<script src="../js/cgn/mui.mkey.js"></script>
<script src="../js/cgn/cgnpc.js"></script> -->
<script type="application/javascript">
//address=""搜索蓝牙//address=设备mac地址，自动配对给出mac地址的设备
function searchDevices(address) {
//注册类
var main = plus.android.runtimeMainActivity();
var IntentFilter = plus.android.importClass('android.content.IntentFilter');
var BluetoothAdapter = plus.android.importClass("android.bluetooth.BluetoothAdapter");
var BluetoothDevice = plus.android.importClass("android.bluetooth.BluetoothDevice");
var BAdapter = BluetoothAdapter.getDefaultAdapter();
console.log("开始搜索设备");
var filter = new IntentFilter();
var bdevice = new BluetoothDevice();
var on = null;
var un = null;
var vlist1 = document.getElementById('list1'); //注册容器用来显示未配对设备
vlist1.innerHTML = ''; //清空容器
var vlist2 = document.getElementById('list2'); //注册容器用来显示未配对设备
vlist2.innerHTML = ''; //清空容器
var button1 = document.getElementById('bt1');
button1.disabled=true;
button1.value='正在搜索请稍候';
if (BAdapter == null) {
alert('设备不支持蓝牙')
} else {
if (!BAdapter.isEnabled()) {
alert('蓝牙未打开，启用蓝牙')
} else {
alert('蓝牙已打开，尝试发现设备')
BAdapter.startDiscovery();
}
}
// BAdapter.startDiscovery(); //开启搜索
var receiver;
receiver = plus.android.implements('io.dcloud.android.content.BroadcastReceiver', {
onReceive: function(context, intent) { //实现onReceiver回调函数
plus.android.importClass(intent); //通过intent实例引入intent类，方便以后的‘.’操作
console.log(intent.getAction()); //获取action
if(intent.getAction() == "android.bluetooth.adapter.action.DISCOVERY_FINISHED"){
main.unregisterReceiver(receiver);//取消监听
button1.disabled=false;
button1.value='搜索设备';
mui.toast("搜索结束")
}else{
BleDevice = intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
//判断是否配对
if (BleDevice.getBondState() == bdevice.BOND_NONE) {
console.log("未配对蓝牙设备：" + BleDevice.getName() + ' ' + BleDevice.getAddress());
//参数如果跟取得的mac地址一样就配对
if (address == BleDevice.getAddress()) {
if (BleDevice.createBond()) { //配对命令.createBond()
console.log("配对成功");
var li2 = document.createElement('li'); //注册
li2.setAttribute('id', BleDevice.getAddress()); //打印机mac地址
li2.setAttribute('onclick', 'print(id)'); //注册click点击列表进行打印
li2.innerText = BleDevice.getName();
vlist2.appendChild(li2);
}
} else {
if(BleDevice.getName() != on ){ //判断防止重复添加
var li1 = document.createElement('li'); //注册
li1.setAttribute('id', BleDevice.getAddress()); //打印机mac地址
li1.setAttribute('onclick', 'searchDevices(id)'); //注册click点击列表进行配对
on = BleDevice.getName();
li1.innerText = on;
vlist1.appendChild(li1);
}
}
} else {
if(BleDevice.getName() != un ){ //判断防止重复添加
console.log("已配对蓝牙设备：" + BleDevice.getName() + ' ' + BleDevice.getAddress());
var li2 = document.createElement('li'); //注册
li2.setAttribute('id', BleDevice.getAddress()); //打印机mac地址
li2.setAttribute('onclick', 'print(id)'); //注册click点击列表进行打印
un = BleDevice.getName();
li2.innerText = un;
vlist2.appendChild(li2);}
}}
}
});
filter.addAction(bdevice.ACTION_FOUND);
filter.addAction(BAdapter.ACTION_DISCOVERY_STARTED);
filter.addAction(BAdapter.ACTION_DISCOVERY_FINISHED);
filter.addAction(BAdapter.ACTION_STATE_CHANGED);
main.registerReceiver(receiver, filter); //注册监听
}
var device = null,
BAdapter = null,
BluetoothAdapter = null,
uuid = null,
main = null,
bluetoothSocket = null;
function print(mac_address) {
if (!mac_address) {
mui.toast('请选择蓝牙打印机');
return;
}
localStorage.setItem("macaddress", mac_address);
main = plus.android.runtimeMainActivity();
BluetoothAdapter = plus.android.importClass("android.bluetooth.BluetoothAdapter");
UUID = plus.android.importClass("java.util.UUID");
uuid = UUID.fromString("00001101-0000-1000-8000-00805F9B34FB");
BAdapter = BluetoothAdapter.getDefaultAdapter();
device = BAdapter.getRemoteDevice(mac_address);
plus.android.importClass(device);
bluetoothSocket = device.createInsecureRfcommSocketToServiceRecord(uuid);
plus.android.importClass(bluetoothSocket);
try {
if (!bluetoothSocket.isConnected()) {
mui.toast('检测到设备未连接，尝试连接....');
bluetoothSocket.connect();
}
if (bluetoothSocket.isConnected()) {
mui.toast('设备已连接');
let outputStream = bluetoothSocket.getOutputStream();
plus.android.importClass(outputStream);
let string = "打印测试\r\n";
let bytes = plus.android.invoke(string,'getBytes','gbk')
mui.toast('1');
//执行到这里开始报错,Uncaught java.io.IOException: read failed, socket might closed or timeout, read ret: -1;at android.bluetooth.BluetoothSocket.connect at index.html:1
outputStream.write(bytes);
mui.toast('2');
outputStream.flush();
mui.toast('3');
bluetoothSocket.close(); // 关闭蓝牙连接
mui.toast('打印完成');
}
} catch (e) {
mui.toast(e);
} finally {
device = null; // 释放设备对象
}
}
</script>
</html>
