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JavaScript使用原生JS（native.JS）连接蓝牙打印机，打印一维码、二维码
使用说明:
- 代码已经过测试，可正常使用
- 测试蓝牙打印机为 商米（SUNMI）V2S plus打印机，此设备为一体机，与PDA连接
- 打印出的一维码和二维码中包含汉字与字母，使用其他设备扫描时可能会出现乱码的情况，出现此现象的原因为扫描设备的配置太低，无法解析包含汉字的二维码，使用手机扫描时即可正常显示
- 代码中的MAC地址一定要改为自己蓝牙打印机的蓝牙Mac地址
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title></title>
<link rel="stylesheet" type="text/css" href="../../css/mui.css" />
<script src="../../js/mui.js" type="text/javascript" charset="utf-8"></script>
</head>
<body>
<header class="mui-bar mui-bar-nav" style="background-color: #007AFF;">
<a class="mui-action-back mui-icon mui-icon-left-nav mui-pull-left" style="color: #fff;"></a>
<h1 class="mui-title" style="color: #fff;">蓝牙打印</h1>
</header>
<div class="mui-content" style="padding-top: 50px;">
<button type="button" class="mui-btn mui-btn-blue mui-btn-block" id="print1">打印条形码</button>
<button type="button" class="mui-btn mui-btn-blue mui-btn-block" id="print2">打印二维码</button>
</div>
<script type="text/javascript">
var bluetoothSocket = null;
var bluetoothPrinterMac = "00:11:22:33:44:55"; //蓝牙打印机的MAC地址
window.onload = function() {
concatBlue();
};
//打印条形码
document.getElementById("print1").addEventListener("tap", () => {
printTM();
});
//打印二维码
document.getElementById("print2").addEventListener("tap", () => {
printQrcode();
});
//连接蓝牙
function concatBlue() {
mui.plusReady(function() {
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"); //不需更改
BAdapter = BluetoothAdapter.getDefaultAdapter();
BAdapter.cancelDiscovery(); //停止扫描
device = BAdapter.getRemoteDevice(bluetoothPrinterMac);
plus.android.importClass(device);
bluetoothSocket = device.createInsecureRfcommSocketToServiceRecord(uuid);
plus.android.importClass(bluetoothSocket);
});
};
/**
* @Description:打印初始化
*/
function initPrinter() {
console.log('打印初始化开始');
var outputStream = bluetoothSocket.getOutputStream();
plus.android.importClass(outputStream);
OutputStreamWriter = plus.android.importClass('java.io.OutputStreamWriter')
writer = new OutputStreamWriter(outputStream, 'GBK')
plus.android.importClass(writer)
writer.write(0x1B)
writer.write(0x40)
writer.flush()
console.log('打印初始化结束');
}
/**
* @Description: 打印条码
*/
function printTM() {
var byteStr = '这是条形码Demo';
if (!bluetoothSocket.isConnected()) {
console.log('断开了，需要重新连接,连接中');
bluetoothSocket.connect();
}
initPrinter();
var bytes = plus.android.invoke(byteStr, 'getBytes', 'gbk')
var length = bytes.length
outputStream = bluetoothSocket.getOutputStream()
plus.android.importClass(outputStream)
OutputStreamWriter = plus.android.importClass('java.io.OutputStreamWriter')
writer = new OutputStreamWriter(outputStream, 'GBK')
plus.android.importClass(writer)
writer.write(0x1B); //打印复位
writer.write(0x40); //打印复位
writer.flush();
var vstr = '{B' + byteStr;
var bytes = plus.android.invoke(vstr, 'getBytes', 'gbk');
var length = bytes.length
writer.write(0x1D);
writer.write(0x6B);
writer.write(73);
writer.write(length);
writer.write(vstr);
writer.flush();
//换行
writer.write("\n");
writer.flush();
writer.write(byteStr);
writer.flush();
setAlignPosition(1);
console.log('条码打印成功');
ff(2);
}
/**
* 方法说明 设置文本对齐方式
* @param align 打印位置 0：居左(默认) 1：居中 2：居右
*/
function setAlignPosition(align) {
writer.write(0x1B);
writer.write(0x61);
writer.write(1);
writer.flush();
}
/**
* @Description: 二维码打印
*/
function printQrcode() {
var byteStr = '这是二维码Demo';
if (!bluetoothSocket.isConnected()) {
console.log('断开了，需要重新连接,连接中');
bluetoothSocket.connect();
}
// init
initPrinter();
var moduleSize = 8
var bytes = plus.android.invoke(byteStr, 'getBytes', 'gbk')
var length = bytes.length
outputStream = bluetoothSocket.getOutputStream()
plus.android.importClass(outputStream)
OutputStreamWriter = plus.android.importClass('java.io.OutputStreamWriter')
writer = new OutputStreamWriter(outputStream, 'GBK')
plus.android.importClass(writer)
// 缓存二维码数据
writer.write(0x1D) // init
writer.write('(k') // adjust height of barcode
writer.write(length + 3) // pl
writer.write(0) // ph
writer.write(49) // cn
writer.write(80) // fn
writer.write(48) //
writer.write(byteStr)
// 二维码纠错等级
writer.write(0x1D)
writer.write('(k')
writer.write(3)
writer.write(0)
writer.write(49)
writer.write(69)
writer.write(48)
// 设置二维码块大小
writer.write(0x1D)
writer.write('(k')
writer.write(3)
writer.write(0)
writer.write(49)
writer.write(67)
writer.write(moduleSize)
// 打印已缓存的数据二维码
writer.write(0x1D)
writer.write('(k')
writer.write(3) // pl
writer.write(0) // ph
writer.write(49) // cn
writer.write(81) // fn
writer.write(48) // m
writer.flush()
// 二维码打印 结束
ff(2);
console.log('二维码打印结束')
}
/**
* @Description:走纸
*/
function ff(n) {
// bluetoothSocket.close();
if (!bluetoothSocket.isConnected()) {
console.log('断开了，需要重新连接,连接中');
bluetoothSocket.connect();
}
if (bluetoothSocket.isConnected()) {
console.log('连接成功');
//initPrinter();
const line = n || 1;
var outputStream = bluetoothSocket.getOutputStream();
plus.android.importClass(outputStream);
outputStream.write(0x1B);
outputStream.write(0x64);
outputStream.write(line); // 行数
outputStream.flush();
}
}
</script>
</body>
</html>
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