<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>BLE Printer Test</title>
<script src="https://cdn.jsdelivr.net/npm/iconv-lite-umd@0.6.10/lib/iconv-lite-umd.js"></script>
</head>
<body>
<h1>BLE Printer Test 123</h1>
<button id="printTestButton">Test Print</button>
<button id="printAgain">Print Again</button>
<pre id="log"></pre>
<script>
// Function to log messages on the page
function logMessage(message) {
const logElement = document.getElementById('log');
logElement.textContent += message + '\n';
}
var device;
var server;
var service;
var characteristic;
var name = 'T58_6752'; // 藍芽設備的名稱
var uuid = 0x1800; //service UUID (用 BLE Scanner 找到的)
var characteristicUuid = 0x2A00; // characteristic UUID (用 BLE Scanner 找到的)
// Function to connect to BLE printer and send test data
async function connectAndTestPrint() {
try {
logMessage("Requesting Bluetooth device...");
// Request the BLE device
device = await navigator.bluetooth.requestDevice({
//acceptAllDevices: true,
filters: [
{ name: name }
],
optionalServices: [uuid] // Replace with the correct service UUID
});
logMessage(`Device selected: ${device.name}`);
logMessage(`Device uuid: ${device.id}`);
await printAgain();
} catch (error) {
logMessage(`Error: ${error.message}`);
}
}
// 转码方法
function stringToGbk(str) {
const ranges = [
[0xA1, 0xA9, 0xA1, 0xFE],
[0xB0, 0xF7, 0xA1, 0xFE],
[0x81, 0xA0, 0x40, 0xFE],
[0xAA, 0xFE, 0x40, 0xA0],
[0xA8, 0xA9, 0x40, 0xA0],
[0xAA, 0xAF, 0xA1, 0xFE],
[0xF8, 0xFE, 0xA1, 0xFE],
[0xA1, 0xA7, 0x40, 0xA0],
]
const codes = new Uint16Array(23940)
let i = 0
for (const [b1Begin, b1End, b2Begin, b2End] of ranges) {
for (let b2 = b2Begin; b2 <= b2End; b2++) {
if (b2 !== 0x7F) {
for (let b1 = b1Begin; b1 <= b1End; b1++) {
codes[i++] = b2 << 8 | b1
}
}
}
}
const cstr = new TextDecoder('gbk').decode(codes)
// 编码表
const table = new Uint16Array(65536)
for (let i = 0; i < cstr.length; i++) {
table[cstr.charCodeAt(i)] = codes[i]
}
const buf = new Uint8Array(str.length * 2)
let n = 0
for (let i = 0; i < str.length; i++) {
const code = str.charCodeAt(i)
if (code < 0x80) {
buf[n++] = code
} else {
const gbk = table[code]
buf[n++] = gbk & 0xFF
buf[n++] = gbk >> 8
}
}
u8buf = buf.subarray(0, n)
// console.log(u8buf);
return u8buf
}
async function printAgain() {
// Connect to the GATT server
server = await device.gatt.connect();
logMessage("Connected to GATT server.");
// Get the printer service
service = await server.getPrimaryService(uuid); // Replace with your printer's service UUID
logMessage("Printer service retrieved.");
// Get the characteristic for writing data
characteristic = await service.getCharacteristic(characteristicUuid); // Replace with the correct characteristic UUID
logMessage("Printer characteristic retrieved.");
// Prepare test print data
const encoder = new TextEncoder();
const testData = encoder.encode("TEST PRINT: Hello from Web Bluetooth!\n");
const finalData = encoder.encode("--\n--\n \n \n");
const setFontSize = new Uint8Array([0x1D, 0x21, 0x11]); // GS ! n
const setFontSize2 = new Uint8Array([0x1D, 0x21, 0x22]); // GS ! n
const setFontSize3 = new Uint8Array([0x1D, 0x21, 0x33]); // GS ! n
// Write test data to the printer
logMessage("Sending test data to printer...");
await characteristic.writeValue(new Uint8Array([0x1D, 0x21, 0x00]));
await characteristic.writeValue(encoder.encode("1x1!\n"));
await characteristic.writeValue(setFontSize);
await characteristic.writeValue(encoder.encode("2x2!\n"));
await characteristic.writeValue(setFontSize2);
await characteristic.writeValue(encoder.encode("3x3!\n"));
await characteristic.writeValue(setFontSize3);
await characteristic.writeValue(encoder.encode("4x4!\n"));
const initPrinter = new Uint8Array([0x1B, 0x40]); // ESC @
await characteristic.writeValue(initPrinter);
// 3. 設置字符集為 GBK
const setGBK = new Uint8Array([0x1B, 0x74, 0x11]); // ESC t 0x11 (GBK)
await characteristic.writeValue(setGBK);
const text = "繁體中文測試\n \n";
const encodedText = stringToGbk(text);
await characteristic.writeValue(encodedText);
logMessage("Test data sent successfully!");
// QrCode 列印
const qrData = "https://example.com"; // Your QR code data
const qrDataLength = qrData.length + 3;
const pL = qrDataLength & 0xFF; // Low byte
const pH = (qrDataLength >> 8) & 0xFF; // High byte
const commands = [
0x1B, 0x40, // Initialize printer
0x1D, 0x28, 0x6B, pL, pH, 0x31, 0x50, 0x30, ...new TextEncoder().encode(qrData), // Store data
0x1D, 0x28, 0x6B, 0x03, 0x00, 0x31, 0x51, 0x30 // Print QR code
];
const buffer = new Uint8Array(commands);
await characteristic.writeValue(buffer);
logMessage("QrCode sent successfully!");
await characteristic.writeValue(finalData);
logMessage("finalData sent successfully!");
// Disconnect the GATT server
server.disconnect();
logMessage("Disconnected from printer.");
}
// Bind the function to the button
document.getElementById('printTestButton').addEventListener('click', connectAndTestPrint);
document.getElementById('printAgain').addEventListener('click', printAgain);
</script>
</body>
</html>
SELECT r.scheduler_id as 排程器識別碼,
status as 要求的狀態,
r.session_id as SPID,
r.blocking_session_id as BlkBy,
substring(
ltrim(q.text),
r.statement_start_offset/2+1,
(CASE
WHEN r.statement_end_offset = -1
THEN LEN(CONVERT(nvarchar(MAX), q.text)) * 2
ELSE r.statement_end_offset
END - r.statement_start_offset)/2)
AS [正在執行的 T-SQL 命令],
r.cpu_time as [CPU Time(ms)],
r.start_time as [開始時間],
r.total_elapsed_time as [執行總時間],
r.reads as [讀取數],
r.writes as [寫入數],
r.logical_reads as [邏輯讀取數],
-- q.text, /* 完整的 T-SQL 指令碼 */
d.name as [資料庫名稱]
FROM sys.dm_exec_requests r
CROSS APPLY sys.dm_exec_sql_text(sql_handle) AS q
LEFT JOIN sys.databases d ON (r.database_id=d.database_id)
WHERE r.session_id <> @@SPID
ORDER BY r.total_elapsed_time desc
PromiseAll: async function (array) {
let taskList = [];
let propList = [];
for (let obj of array) {
for (let prop in obj) {
taskList.push(obj[prop]);
propList.push(prop);
}
}
let resp = await Promise.all(taskList);
let result = {};
let counter = 0;
for (let prop of propList) {
result[prop] = resp[counter];
counter += 1;
}
return result;
}
const taskList = [{
adPosition : BannerPositionDataService.GetList(),
big : BannerDataService.GetList(100),
smallTop : BannerDataService.GetOne(200),
smallBottom : BannerDataService.GetOne(300),
section2 : BannerDataService.GetList(400),
section3 : BannerDataService.GetList(500),
section4 : BannerDataService.GetList(600),
recommends : ProductDataService.GetRndList()
}];
let resps = await UJ.PromiseAll(taskList);
DeepBinding: function (vueData, data) {
if (Array.isArray(data)) {
if (!Array.isArray(vueData)) {
vueData = [];
} else {
vueData.splice(0);
}
for (let prop in data) {
vueData.push(data[prop]);
}
}
else if (typeof (data) === 'object') {
if (Object.keys(data).length === 0) {
return;
}
for (let prop in data) {
if (vueData[prop] === undefined || data[prop] === null ||
(!Array.isArray(vueData[prop] && vueData !== null && typeof (data) !== 'object'))) {
vueData[prop] = data[prop];
} else {
this.DeepBinding(vueData[prop], data[prop]);
}
}
} else {
vueData = data;
}
}
UJ.DeepBinding(this, resp);
public ConcurrentBag<V2SalesOrderGetDataList> ConcurencyGetApp91OrderDetails(List<string> TMCodes, int shopId, ref ConcurrentBag<string> orderErrMsgs)
{
#region 平行查詢
ConcurrentBag<V2SalesOrderGetDataList> result = new ConcurrentBag<V2SalesOrderGetDataList>();
ConcurrentBag<string> errs = new ConcurrentBag<string>();
ConcurrentQueue<string> TMCodeQueues = new ConcurrentQueue<string>();
TMCodes.ForEach(x => TMCodeQueues.Enqueue(x));
Action searchOrderDetail = () =>
{
if (!TMCodeQueues.IsEmpty)
{
string TMCode = string.Empty;
while (TMCodeQueues.TryDequeue(out TMCode))
{
V2SalesOrderGetReqModel reqModel = new V2SalesOrderGetReqModel()
{
ShopId = shopId,
TGCode = null,
TMCode = TMCode,
TSCode = null,
};
try
{
V2SalesOrderGet91API req = new V2SalesOrderGet91API();
var resp = req.Execute(reqModel, shopId);
if (resp.Status == "Success")
{
foreach (var l in resp.Data.List)
{
result.Add(l);
}
}
else
{
//主單編號 , 錯誤原因
errs.Add(TMCode + " , " + resp.ErrorMessage);
}
}
catch (Exception ex)
{
errs.Add(TMCode + " , " + ex.Message);
}
}
}
};
//指派Thread
Parallel.Invoke(searchOrderDetail, searchOrderDetail);
#endregion
//查詢失敗
orderErrMsgs = errs;
return result;
}
/// <summary>
/// 會把物件 Parameter 的各 Property 帶入 SQL 中.
/// </summary>
/// <param name="dbct"></param>
/// <param name="sql"></param>
/// <param name="parameters"></param>
/// <returns></returns>
public static async Task<int> ExecuteParameterSqlAsync(this DbContext dbct, string sql, object parameters)
{
return await dbct.Database.ExecuteSqlRawAsync(sql, parameters.ToSqlParamsArray());
}
public async Task<object> EfTest()
{
var dbct = Ds.NewContext.GvContext;
var insertSql = @"Insert into ProfileEvent(JobId,[Name],GvShoplineId,LiShoplineId,Phone,Email,LineId,GaClientId)
Values(@JobId, @Name, null , null , null , @Email, @GaClientId , @GaClientId )";
//執行 SQL 的原生寫法
await dbct.Database.ExecuteSqlRawAsync(insertSql, new object[]
{
new SqlParameter("@JobId", 10),
new SqlParameter("@Email", "XX'TT"),
new SqlParameter("@Name", "AA'BB"),
new SqlParameter("@GaClientId", "GaClientId"),
});
//執行 SQL 的擴充寫法
await dbct.ExecuteParameterSqlAsync(insertSql, new
{
JobId = 10,
Email = "XX'TT",
Name = "AA'BB",
GaClientId = "GaClientId"
});
//關於查詢
string name = "%'B%";
//原生寫法
var res1 = await dbct.ProfileEvents.FromSqlRaw("Select top 100 * from ProfileEvent where Name like @name",
new object[]
{
new SqlParameter("@name", "%'B%")
})
.ToListAsync();
//擴充, object to SqlParameter array
var res2 = await dbct.ProfileEvents.FromSqlRaw("Select top 100 * from ProfileEvent where Name like @name",
new { name }.ToSqlParamsArray())
.ToListAsync();
var res3 = await dbct.ProfileEvents.FromSql($"Select top 100 * from ProfileEvent where Name like {name}")
.ToListAsync();
var res4 = await dbct.ProfileEvents.FromSqlInterpolated($"Select top 100 * from ProfileEvent where Name like {name}")
.ToListAsync();
return new { res1, res2, res3, res4 };
}
<ItemGroup>
<PackageReference Include="sqlite-net-pcl" Version="1.8.116" />
<PackageReference Include="SQLiteNetExtensions.Async" Version="2.1.0" />
<PackageReference Include="SQLitePCLRaw.bundle_green" Version="2.1.4" />
<PackageReference Include="SQLitePCLRaw.core" Version="2.1.4" />
<PackageReference Include="SQLitePCLRaw.lib.e_sqlite3" Version="2.1.4" />
<PackageReference Include="SQLitePCLRaw.provider.dynamic_cdecl" Version="2.1.4" />
<PackageReference Include="System.Data.DataSetExtensions" Version="4.5.0" />
</ItemGroup>