
從Dynamsoft Barcode Reader遷移到IronBarcode
大多數從Dynamsoft Barcode Reader遷移到IronBarcode的開發人員屬於兩類之一:那些因Dynamsoft的聲譽而選擇它,卻發現相機中心的API不適合文件處理使用案例的人,以及那些執行在氣隙或Docker環境中造成生產事故的授權伺服器依賴性的人。
如果您是第一類,遷移將移除外部PDF渲染庫、每頁渲染迴圈以及錯誤程式碼授權模式。 如果您是第二類,遷移將移除InitLicense網路調用、離線授權內容包及刷新周期,以及來自您的Docker或VPC配置的出站網路政策。 無論哪種方式,程式碼庫在此遷移後會變得更短。
這份指南誠實地告訴您會失去什麼:如果您的應用程式處理即時相機畫面,Dynamsoft的Capture Vision管線適合那種工作負荷,而IronBarcode不是正確的替代品。 這份遷移指南適用於伺服器端文件處理、文件工作流程以及授權伺服器存取存在問題的環境。
步驟1:更換NuGet套件
dotnet remove package Dynamsoft.DotNet.BarcodeReader.Bundle
dotnet add package BarCode
如果您的專案中也特別為Dynamsoft新增了PDF渲染庫(PdfiumViewer是最常見的),那也可以移除:
# Remove if added only for Dynamsoft PDF support
dotnet remove package PdfiumViewer
dotnet remove package PdfiumViewer.Native.x86_64.v8-xfa
步驟2:替換授權初始化
這是最直接簡化的地方。 Dynamsoft模式需要在每次啟動時進行錯誤程式碼檢查和異常處理:
之前 - Dynamsoft:
using Dynamsoft.License;
using Dynamsoft.Core;
// Must run before any barcode operations
int errorCode = LicenseManager.InitLicense("YOUR-DYNAMSOFT-KEY", out string errorMsg);
if (errorCode != (int)EnumErrorCode.EC_OK)
throw new InvalidOperationException($"License validation failed [{errorCode}]: {errorMsg}");Imports Dynamsoft.License
Imports Dynamsoft.Core
' Must run before any barcode operations
Dim errorCode As Integer = LicenseManager.InitLicense("YOUR-DYNAMSOFT-KEY", errorMsg)
If errorCode <> CType(EnumErrorCode.EC_OK, Integer) Then
Throw New InvalidOperationException($"License validation failed [{errorCode}]: {errorMsg}")
End IfImports Dynamsoft.License
Imports Dynamsoft.Core
' Must run before any barcode operations
Dim errorCode As Integer = LicenseManager.InitLicense("YOUR-DYNAMSOFT-KEY", errorMsg)
If errorCode <> CType(EnumErrorCode.EC_OK, Integer) Then
Throw New InvalidOperationException($"License validation failed [{errorCode}]: {errorMsg}")
End If之後 - IronBarcode:
// NuGet: dotnet add package BarCode
using IronBarCode;
// Local validation — no network call, no error code
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";// NuGet: dotnet add package BarCode
using IronBarCode;
// Local validation — no network call, no error code
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";Imports IronBarCode
' Local validation — no network call, no error code
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY"Imports IronBarCode
' Local validation — no network call, no error code
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY"在ASP.NET Core應用程式中,將此新增到builder.Build():
IronBarCode.License.LicenseKey = Environment.GetEnvironmentVariable("IRONBARCODE_KEY")
?? "YOUR-LICENSE-KEY";IronBarCode.License.LicenseKey = Environment.GetEnvironmentVariable("IRONBARCODE_KEY")
?? "YOUR-LICENSE-KEY";Imports IronBarCode
IronBarCode.License.LicenseKey = If(Environment.GetEnvironmentVariable("IRONBARCODE_KEY"), "YOUR-LICENSE-KEY")Imports IronBarCode
IronBarCode.License.LicenseKey = If(Environment.GetEnvironmentVariable("IRONBARCODE_KEY"), "YOUR-LICENSE-KEY")在Docker或Kubernetes環境中,將IRONBARCODE_KEY環境變數設置在您的部署清單中。無需出站網路規則。
步驟3:替換命名空間導入
在所有源文件中查找和替換:
grep -r "using Dynamsoft\." --include="*.cs" .
替換每次出現:
// Before
using Dynamsoft.CVR;
using Dynamsoft.DBR;
using Dynamsoft.License;
using Dynamsoft.Core;
// After
using IronBarCode;// Before
using Dynamsoft.CVR;
using Dynamsoft.DBR;
using Dynamsoft.License;
using Dynamsoft.Core;
// After
using IronBarCode;Imports IronBarCodeImports IronBarCode程式碼遷移範例
基本文件閱讀
最基本的操作——從圖像文件讀取條碼。
之前 - Dynamsoft:
using Dynamsoft.CVR;
using Dynamsoft.DBR;
public string ReadBarcodeFromFile(CaptureVisionRouter router, string imagePath)
{
CapturedResult result = router.Capture(imagePath, PresetTemplate.PT_READ_BARCODES);
BarcodeResultItem[] items = result.GetDecodedBarcodesResult()?.GetItems();
if (items == null || items.Length == 0)
return null;
return items[0].GetText();
}using Dynamsoft.CVR;
using Dynamsoft.DBR;
public string ReadBarcodeFromFile(CaptureVisionRouter router, string imagePath)
{
CapturedResult result = router.Capture(imagePath, PresetTemplate.PT_READ_BARCODES);
BarcodeResultItem[] items = result.GetDecodedBarcodesResult()?.GetItems();
if (items == null || items.Length == 0)
return null;
return items[0].GetText();
}Imports Dynamsoft.CVR
Imports Dynamsoft.DBR
Public Function ReadBarcodeFromFile(router As CaptureVisionRouter, imagePath As String) As String
Dim result As CapturedResult = router.Capture(imagePath, PresetTemplate.PT_READ_BARCODES)
Dim items As BarcodeResultItem() = result.GetDecodedBarcodesResult()?.GetItems()
If items Is Nothing OrElse items.Length = 0 Then
Return Nothing
End If
Return items(0).GetText()
End FunctionImports Dynamsoft.CVR
Imports Dynamsoft.DBR
Public Function ReadBarcodeFromFile(router As CaptureVisionRouter, imagePath As String) As String
Dim result As CapturedResult = router.Capture(imagePath, PresetTemplate.PT_READ_BARCODES)
Dim items As BarcodeResultItem() = result.GetDecodedBarcodesResult()?.GetItems()
If items Is Nothing OrElse items.Length = 0 Then
Return Nothing
End If
Return items(0).GetText()
End Function之後 - IronBarcode:
// NuGet: dotnet add package BarCode
using IronBarCode;
public string ReadBarcodeFromFile(string imagePath)
{
var results = BarcodeReader.Read(imagePath);
return results?.FirstOrDefault()?.Value;
}// NuGet: dotnet add package BarCode
using IronBarCode;
public string ReadBarcodeFromFile(string imagePath)
{
var results = BarcodeReader.Read(imagePath);
return results?.FirstOrDefault()?.Value;
}Imports IronBarCode
Public Function ReadBarcodeFromFile(imagePath As String) As String
Dim results = BarcodeReader.Read(imagePath)
Return results?.FirstOrDefault()?.Value
End FunctionImports IronBarCode
Public Function ReadBarcodeFromFile(imagePath As String) As String
Dim results = BarcodeReader.Read(imagePath)
Return results?.FirstOrDefault()?.Value
End Function路由器實例已消失。 BarcodeReader.Read是靜態的。 .Value。 對results的空檢查使用LINQ更簡潔。
讀取多個條碼
之前 - Dynamsoft:
using Dynamsoft.CVR;
using Dynamsoft.DBR;
public List<string> ReadAllBarcodes(CaptureVisionRouter router, string imagePath)
{
SimplifiedCaptureVisionSettings settings = router.GetSimplifiedSettings(
PresetTemplate.PT_READ_BARCODES);
settings.BarcodeSettings.ExpectedBarcodesCount = 0; // 0 = find all
router.UpdateSettings(PresetTemplate.PT_READ_BARCODES, settings);
CapturedResult result = router.Capture(imagePath, PresetTemplate.PT_READ_BARCODES);
BarcodeResultItem[] items = result.GetDecodedBarcodesResult()?.GetItems();
var values = new List<string>();
if (items != null)
{
foreach (var item in items)
values.Add(item.GetText());
}
return values;
}using Dynamsoft.CVR;
using Dynamsoft.DBR;
public List<string> ReadAllBarcodes(CaptureVisionRouter router, string imagePath)
{
SimplifiedCaptureVisionSettings settings = router.GetSimplifiedSettings(
PresetTemplate.PT_READ_BARCODES);
settings.BarcodeSettings.ExpectedBarcodesCount = 0; // 0 = find all
router.UpdateSettings(PresetTemplate.PT_READ_BARCODES, settings);
CapturedResult result = router.Capture(imagePath, PresetTemplate.PT_READ_BARCODES);
BarcodeResultItem[] items = result.GetDecodedBarcodesResult()?.GetItems();
var values = new List<string>();
if (items != null)
{
foreach (var item in items)
values.Add(item.GetText());
}
return values;
}Imports Dynamsoft.CVR
Imports Dynamsoft.DBR
Public Function ReadAllBarcodes(router As CaptureVisionRouter, imagePath As String) As List(Of String)
Dim settings As SimplifiedCaptureVisionSettings = router.GetSimplifiedSettings(PresetTemplate.PT_READ_BARCODES)
settings.BarcodeSettings.ExpectedBarcodesCount = 0 ' 0 = find all
router.UpdateSettings(PresetTemplate.PT_READ_BARCODES, settings)
Dim result As CapturedResult = router.Capture(imagePath, PresetTemplate.PT_READ_BARCODES)
Dim items As BarcodeResultItem() = result.GetDecodedBarcodesResult()?.GetItems()
Dim values As New List(Of String)()
If items IsNot Nothing Then
For Each item In items
values.Add(item.GetText())
Next
End If
Return values
End FunctionImports Dynamsoft.CVR
Imports Dynamsoft.DBR
Public Function ReadAllBarcodes(router As CaptureVisionRouter, imagePath As String) As List(Of String)
Dim settings As SimplifiedCaptureVisionSettings = router.GetSimplifiedSettings(PresetTemplate.PT_READ_BARCODES)
settings.BarcodeSettings.ExpectedBarcodesCount = 0 ' 0 = find all
router.UpdateSettings(PresetTemplate.PT_READ_BARCODES, settings)
Dim result As CapturedResult = router.Capture(imagePath, PresetTemplate.PT_READ_BARCODES)
Dim items As BarcodeResultItem() = result.GetDecodedBarcodesResult()?.GetItems()
Dim values As New List(Of String)()
If items IsNot Nothing Then
For Each item In items
values.Add(item.GetText())
Next
End If
Return values
End Function之後 - IronBarcode:
using IronBarCode;
public List<string> ReadAllBarcodes(string imagePath)
{
var options = new BarcodeReaderOptions
{
ExpectMultipleBarcodes = true,
MaxParallelThreads = 4
};
return BarcodeReader.Read(imagePath, options)
.Select(r => r.Value)
.ToList();
}using IronBarCode;
public List<string> ReadAllBarcodes(string imagePath)
{
var options = new BarcodeReaderOptions
{
ExpectMultipleBarcodes = true,
MaxParallelThreads = 4
};
return BarcodeReader.Read(imagePath, options)
.Select(r => r.Value)
.ToList();
}Imports IronBarCode
Public Function ReadAllBarcodes(imagePath As String) As List(Of String)
Dim options As New BarcodeReaderOptions With {
.ExpectMultipleBarcodes = True,
.MaxParallelThreads = 4
}
Return BarcodeReader.Read(imagePath, options) _
.Select(Function(r) r.Value) _
.ToList()
End FunctionImports IronBarCode
Public Function ReadAllBarcodes(imagePath As String) As List(Of String)
Dim options As New BarcodeReaderOptions With {
.ExpectMultipleBarcodes = True,
.MaxParallelThreads = 4
}
Return BarcodeReader.Read(imagePath, options) _
.Select(Function(r) r.Value) _
.ToList()
End Function從字節讀取(記憶體內圖像)
之前 - Dynamsoft:
using Dynamsoft.CVR;
using Dynamsoft.Core;
using Dynamsoft.DBR;
// Requires width, height, stride, and pixel format — low-level buffer API
public string ReadFromBuffer(CaptureVisionRouter router, byte[] rawPixels, int width, int height)
{
var imageData = new ImageData
{
Bytes = rawPixels,
Width = width,
Height = height,
Stride = width * 3, // assuming 24bpp RGB
Format = EnumImagePixelFormat.IPF_RGB_888
};
CapturedResult result = router.Capture(imageData, PresetTemplate.PT_READ_BARCODES);
return result.GetDecodedBarcodesResult()?.GetItems()?.FirstOrDefault()?.GetText();
}using Dynamsoft.CVR;
using Dynamsoft.Core;
using Dynamsoft.DBR;
// Requires width, height, stride, and pixel format — low-level buffer API
public string ReadFromBuffer(CaptureVisionRouter router, byte[] rawPixels, int width, int height)
{
var imageData = new ImageData
{
Bytes = rawPixels,
Width = width,
Height = height,
Stride = width * 3, // assuming 24bpp RGB
Format = EnumImagePixelFormat.IPF_RGB_888
};
CapturedResult result = router.Capture(imageData, PresetTemplate.PT_READ_BARCODES);
return result.GetDecodedBarcodesResult()?.GetItems()?.FirstOrDefault()?.GetText();
}Imports Dynamsoft.CVR
Imports Dynamsoft.Core
Imports Dynamsoft.DBR
' Requires width, height, stride, and pixel format — low-level buffer API
Public Function ReadFromBuffer(router As CaptureVisionRouter, rawPixels As Byte(), width As Integer, height As Integer) As String
Dim imageData As New ImageData With {
.Bytes = rawPixels,
.Width = width,
.Height = height,
.Stride = width * 3, ' assuming 24bpp RGB
.Format = EnumImagePixelFormat.IPF_RGB_888
}
Dim result As CapturedResult = router.Capture(imageData, PresetTemplate.PT_READ_BARCODES)
Return result.GetDecodedBarcodesResult()?.GetItems()?.FirstOrDefault()?.GetText()
End FunctionImports Dynamsoft.CVR
Imports Dynamsoft.Core
Imports Dynamsoft.DBR
' Requires width, height, stride, and pixel format — low-level buffer API
Public Function ReadFromBuffer(router As CaptureVisionRouter, rawPixels As Byte(), width As Integer, height As Integer) As String
Dim imageData As New ImageData With {
.Bytes = rawPixels,
.Width = width,
.Height = height,
.Stride = width * 3, ' assuming 24bpp RGB
.Format = EnumImagePixelFormat.IPF_RGB_888
}
Dim result As CapturedResult = router.Capture(imageData, PresetTemplate.PT_READ_BARCODES)
Return result.GetDecodedBarcodesResult()?.GetItems()?.FirstOrDefault()?.GetText()
End Function之後 - IronBarcode:
using IronBarCode;
// Pass PNG/JPEG/BMP bytes directly — no pixel format or stride calculation
public string ReadFromImageBytes(byte[] imageBytes)
{
return BarcodeReader.Read(imageBytes)?.FirstOrDefault()?.Value;
}using IronBarCode;
// Pass PNG/JPEG/BMP bytes directly — no pixel format or stride calculation
public string ReadFromImageBytes(byte[] imageBytes)
{
return BarcodeReader.Read(imageBytes)?.FirstOrDefault()?.Value;
}Imports IronBarCode
Public Function ReadFromImageBytes(imageBytes As Byte()) As String
Return BarcodeReader.Read(imageBytes)?.FirstOrDefault()?.Value
End FunctionImports IronBarCode
Public Function ReadFromImageBytes(imageBytes As Byte()) As String
Return BarcodeReader.Read(imageBytes)?.FirstOrDefault()?.Value
End Function如果您的應用程式以前將圖像字節轉換為Dynamsoft的原始像素緩衝區,您可以直接將原始編碼圖像字節(PNG、JPEG、BMP)傳遞給IronBarcode,而無需先解碼為原始像素。
PDF條碼閱讀——移除渲染迴圈
這通常是遷移中最大的程式碼減少。 移除整個PdfiumViewer渲染迴圈,並用一次調用替換它。
之前 - Dynamsoft與PdfiumViewer:
// Requires: Dynamsoft.DotNet.BarcodeReader.Bundle + PdfiumViewer + PdfiumViewer.Native.*
using Dynamsoft.CVR;
using Dynamsoft.DBR;
using PdfiumViewer;
using System.Drawing.Imaging;
public List<string> ReadBarcodesFromPdf(CaptureVisionRouter router, string pdfPath)
{
var allBarcodes = new List<string>();
using (var pdfDoc = PdfDocument.Load(pdfPath))
{
for (int page = 0; page < pdfDoc.PageCount; page++)
{
using var image = pdfDoc.Render(page, 300, 300, true);
using var ms = new MemoryStream();
image.Save(ms, ImageFormat.Png);
CapturedResult result = router.Capture(ms.ToArray(),
PresetTemplate.PT_READ_BARCODES);
var items = result.GetDecodedBarcodesResult()?.GetItems();
if (items != null)
{
foreach (var item in items)
allBarcodes.Add(item.GetText());
}
}
}
return allBarcodes;
}// Requires: Dynamsoft.DotNet.BarcodeReader.Bundle + PdfiumViewer + PdfiumViewer.Native.*
using Dynamsoft.CVR;
using Dynamsoft.DBR;
using PdfiumViewer;
using System.Drawing.Imaging;
public List<string> ReadBarcodesFromPdf(CaptureVisionRouter router, string pdfPath)
{
var allBarcodes = new List<string>();
using (var pdfDoc = PdfDocument.Load(pdfPath))
{
for (int page = 0; page < pdfDoc.PageCount; page++)
{
using var image = pdfDoc.Render(page, 300, 300, true);
using var ms = new MemoryStream();
image.Save(ms, ImageFormat.Png);
CapturedResult result = router.Capture(ms.ToArray(),
PresetTemplate.PT_READ_BARCODES);
var items = result.GetDecodedBarcodesResult()?.GetItems();
if (items != null)
{
foreach (var item in items)
allBarcodes.Add(item.GetText());
}
}
}
return allBarcodes;
}Imports Dynamsoft.CVR
Imports Dynamsoft.DBR
Imports PdfiumViewer
Imports System.Drawing.Imaging
Public Function ReadBarcodesFromPdf(router As CaptureVisionRouter, pdfPath As String) As List(Of String)
Dim allBarcodes As New List(Of String)()
Using pdfDoc As PdfDocument = PdfDocument.Load(pdfPath)
For page As Integer = 0 To pdfDoc.PageCount - 1
Using image = pdfDoc.Render(page, 300, 300, True)
Using ms As New MemoryStream()
image.Save(ms, ImageFormat.Png)
Dim result As CapturedResult = router.Capture(ms.ToArray(), PresetTemplate.PT_READ_BARCODES)
Dim items = result.GetDecodedBarcodesResult()?.GetItems()
If items IsNot Nothing Then
For Each item In items
allBarcodes.Add(item.GetText())
Next
End If
End Using
End Using
Next
End Using
Return allBarcodes
End FunctionImports Dynamsoft.CVR
Imports Dynamsoft.DBR
Imports PdfiumViewer
Imports System.Drawing.Imaging
Public Function ReadBarcodesFromPdf(router As CaptureVisionRouter, pdfPath As String) As List(Of String)
Dim allBarcodes As New List(Of String)()
Using pdfDoc As PdfDocument = PdfDocument.Load(pdfPath)
For page As Integer = 0 To pdfDoc.PageCount - 1
Using image = pdfDoc.Render(page, 300, 300, True)
Using ms As New MemoryStream()
image.Save(ms, ImageFormat.Png)
Dim result As CapturedResult = router.Capture(ms.ToArray(), PresetTemplate.PT_READ_BARCODES)
Dim items = result.GetDecodedBarcodesResult()?.GetItems()
If items IsNot Nothing Then
For Each item In items
allBarcodes.Add(item.GetText())
Next
End If
End Using
End Using
Next
End Using
Return allBarcodes
End Function之後 - IronBarcode:
using IronBarCode;
public List<string> ReadBarcodesFromPdf(string pdfPath)
{
return BarcodeReader.Read(pdfPath)
.Select(r => r.Value)
.ToList();
}using IronBarCode;
public List<string> ReadBarcodesFromPdf(string pdfPath)
{
return BarcodeReader.Read(pdfPath)
.Select(r => r.Value)
.ToList();
}Imports IronBarCode
Public Function ReadBarcodesFromPdf(pdfPath As String) As List(Of String)
Return BarcodeReader.Read(pdfPath) _
.Select(Function(r) r.Value) _
.ToList()
End FunctionImports IronBarCode
Public Function ReadBarcodesFromPdf(pdfPath As String) As List(Of String)
Return BarcodeReader.Read(pdfPath) _
.Select(Function(r) r.Value) _
.ToList()
End Function頁面迴圈、PdfDocument、300 DPI渲染步驟、MemoryStream和每頁Capture調用都消失。 IronBarcode在內部處理PDF頁面。
如果您需要閱讀具有選項的PDF(對於密集或困難的條碼):
using IronBarCode;
public List<string> ReadBarcodesFromPdfAccurate(string pdfPath)
{
var options = new BarcodeReaderOptions
{
Speed = ReadingSpeed.Balanced,
ExpectMultipleBarcodes = true
};
return BarcodeReader.Read(pdfPath, options)
.Select(r => r.Value)
.ToList();
}using IronBarCode;
public List<string> ReadBarcodesFromPdfAccurate(string pdfPath)
{
var options = new BarcodeReaderOptions
{
Speed = ReadingSpeed.Balanced,
ExpectMultipleBarcodes = true
};
return BarcodeReader.Read(pdfPath, options)
.Select(r => r.Value)
.ToList();
}Imports IronBarCode
Public Function ReadBarcodesFromPdfAccurate(pdfPath As String) As List(Of String)
Dim options As New BarcodeReaderOptions With {
.Speed = ReadingSpeed.Balanced,
.ExpectMultipleBarcodes = True
}
Return BarcodeReader.Read(pdfPath, options) _
.Select(Function(r) r.Value) _
.ToList()
End FunctionImports IronBarCode
Public Function ReadBarcodesFromPdfAccurate(pdfPath As String) As List(Of String)
Dim options As New BarcodeReaderOptions With {
.Speed = ReadingSpeed.Balanced,
.ExpectMultipleBarcodes = True
}
Return BarcodeReader.Read(pdfPath, options) _
.Select(Function(r) r.Value) _
.ToList()
End Function離線/氣隙部署
如果您目前的程式碼包括離線授權模式,請完全移除它:
之前 - Dynamsoft離線授權:
using Dynamsoft.License;
using Dynamsoft.Core;
// Dynamsoft offline: fetch license bundle on a connected machine, persist it,
// then replay it on the offline machine via InitLicenseFromLicenseContent.
int errorCode = LicenseManager.InitLicenseFromLicenseContent(
licenseContent,
out string errorMsg);
if (errorCode != (int)EnumErrorCode.EC_OK)
throw new InvalidOperationException($"Offline license failed: {errorMsg}");using Dynamsoft.License;
using Dynamsoft.Core;
// Dynamsoft offline: fetch license bundle on a connected machine, persist it,
// then replay it on the offline machine via InitLicenseFromLicenseContent.
int errorCode = LicenseManager.InitLicenseFromLicenseContent(
licenseContent,
out string errorMsg);
if (errorCode != (int)EnumErrorCode.EC_OK)
throw new InvalidOperationException($"Offline license failed: {errorMsg}");Imports Dynamsoft.License
Imports Dynamsoft.Core
' Dynamsoft offline: fetch license bundle on a connected machine, persist it,
' then replay it on the offline machine via InitLicenseFromLicenseContent.
Dim errorMsg As String
Dim errorCode As Integer = LicenseManager.InitLicenseFromLicenseContent(licenseContent, errorMsg)
If errorCode <> CType(EnumErrorCode.EC_OK, Integer) Then
Throw New InvalidOperationException($"Offline license failed: {errorMsg}")
End IfImports Dynamsoft.License
Imports Dynamsoft.Core
' Dynamsoft offline: fetch license bundle on a connected machine, persist it,
' then replay it on the offline machine via InitLicenseFromLicenseContent.
Dim errorMsg As String
Dim errorCode As Integer = LicenseManager.InitLicenseFromLicenseContent(licenseContent, errorMsg)
If errorCode <> CType(EnumErrorCode.EC_OK, Integer) Then
Throw New InvalidOperationException($"Offline license failed: {errorMsg}")
End If之後 - IronBarcode:
// Remove all of the above. Replace with:
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";// Remove all of the above. Replace with:
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY"IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY"沒有授權內容包需獲取和刷新。 沒有連接機器啟動步驟。密鑰在本地驗證。
Docker配置
如果您之前有網路出口規則或代理配置以允許出站HTTPS到Dynamsoft的授權端點:
# Before: Docker or Kubernetes egress policy
# Required: Allow outbound HTTPS to Dynamsoft licence endpoints
# After: Remove that egress rule.
# IronBarcode does not require outbound network access for license validation.
# Set license via environment variable
env:
- name: IRONBARCODE_KEY
valueFrom:
secretKeyRef:
name: ironbarcode-license
key: key
實例管理清理
Dynamsoft使用基於CaptureVisionRouter的實例API。 如果您的程式碼在服務類、字段初始化器或DI註冊中建立路由器實例,這些都會消失:
之前 - Dynamsoft實例管理:
using Dynamsoft.CVR;
using Dynamsoft.DBR;
using Dynamsoft.License;
using Dynamsoft.Core;
public class BarcodeService : IDisposable
{
private readonly CaptureVisionRouter _router;
public BarcodeService()
{
int errorCode = LicenseManager.InitLicense("KEY", out string errorMsg);
if (errorCode != (int)EnumErrorCode.EC_OK)
throw new InvalidOperationException(errorMsg);
_router = new CaptureVisionRouter();
var settings = _router.GetSimplifiedSettings(PresetTemplate.PT_READ_BARCODES);
settings.BarcodeSettings.ExpectedBarcodesCount = 0;
_router.UpdateSettings(PresetTemplate.PT_READ_BARCODES, settings);
}
public string[] ReadFile(string path)
{
CapturedResult result = _router.Capture(path, PresetTemplate.PT_READ_BARCODES);
var items = result.GetDecodedBarcodesResult()?.GetItems();
return items?.Select(i => i.GetText()).ToArray() ?? Array.Empty<string>();
}
public void Dispose()
{
_router?.Dispose();
}
}using Dynamsoft.CVR;
using Dynamsoft.DBR;
using Dynamsoft.License;
using Dynamsoft.Core;
public class BarcodeService : IDisposable
{
private readonly CaptureVisionRouter _router;
public BarcodeService()
{
int errorCode = LicenseManager.InitLicense("KEY", out string errorMsg);
if (errorCode != (int)EnumErrorCode.EC_OK)
throw new InvalidOperationException(errorMsg);
_router = new CaptureVisionRouter();
var settings = _router.GetSimplifiedSettings(PresetTemplate.PT_READ_BARCODES);
settings.BarcodeSettings.ExpectedBarcodesCount = 0;
_router.UpdateSettings(PresetTemplate.PT_READ_BARCODES, settings);
}
public string[] ReadFile(string path)
{
CapturedResult result = _router.Capture(path, PresetTemplate.PT_READ_BARCODES);
var items = result.GetDecodedBarcodesResult()?.GetItems();
return items?.Select(i => i.GetText()).ToArray() ?? Array.Empty<string>();
}
public void Dispose()
{
_router?.Dispose();
}
}Imports Dynamsoft.CVR
Imports Dynamsoft.DBR
Imports Dynamsoft.License
Imports Dynamsoft.Core
Public Class BarcodeService
Implements IDisposable
Private ReadOnly _router As CaptureVisionRouter
Public Sub New()
Dim errorCode As Integer = LicenseManager.InitLicense("KEY", errorMsg:=Nothing)
If errorCode <> CType(EnumErrorCode.EC_OK, Integer) Then
Throw New InvalidOperationException(errorMsg)
End If
_router = New CaptureVisionRouter()
Dim settings = _router.GetSimplifiedSettings(PresetTemplate.PT_READ_BARCODES)
settings.BarcodeSettings.ExpectedBarcodesCount = 0
_router.UpdateSettings(PresetTemplate.PT_READ_BARCODES, settings)
End Sub
Public Function ReadFile(path As String) As String()
Dim result As CapturedResult = _router.Capture(path, PresetTemplate.PT_READ_BARCODES)
Dim items = result.GetDecodedBarcodesResult()?.GetItems()
Return If(items?.Select(Function(i) i.GetText()).ToArray(), Array.Empty(Of String)())
End Function
Public Sub Dispose() Implements IDisposable.Dispose
_router?.Dispose()
End Sub
End ClassImports Dynamsoft.CVR
Imports Dynamsoft.DBR
Imports Dynamsoft.License
Imports Dynamsoft.Core
Public Class BarcodeService
Implements IDisposable
Private ReadOnly _router As CaptureVisionRouter
Public Sub New()
Dim errorCode As Integer = LicenseManager.InitLicense("KEY", errorMsg:=Nothing)
If errorCode <> CType(EnumErrorCode.EC_OK, Integer) Then
Throw New InvalidOperationException(errorMsg)
End If
_router = New CaptureVisionRouter()
Dim settings = _router.GetSimplifiedSettings(PresetTemplate.PT_READ_BARCODES)
settings.BarcodeSettings.ExpectedBarcodesCount = 0
_router.UpdateSettings(PresetTemplate.PT_READ_BARCODES, settings)
End Sub
Public Function ReadFile(path As String) As String()
Dim result As CapturedResult = _router.Capture(path, PresetTemplate.PT_READ_BARCODES)
Dim items = result.GetDecodedBarcodesResult()?.GetItems()
Return If(items?.Select(Function(i) i.GetText()).ToArray(), Array.Empty(Of String)())
End Function
Public Sub Dispose() Implements IDisposable.Dispose
_router?.Dispose()
End Sub
End Class之後 - IronBarcode靜態API:
// NuGet: dotnet add package BarCode
using IronBarCode;
public class BarcodeService
{
// No constructor initialization — license set once at app startup
// No Dispose — no instance to clean up
public string[] ReadFile(string path)
{
var options = new BarcodeReaderOptions { ExpectMultipleBarcodes = true };
return BarcodeReader.Read(path, options)
.Select(r => r.Value)
.ToArray();
}
}// NuGet: dotnet add package BarCode
using IronBarCode;
public class BarcodeService
{
// No constructor initialization — license set once at app startup
// No Dispose — no instance to clean up
public string[] ReadFile(string path)
{
var options = new BarcodeReaderOptions { ExpectMultipleBarcodes = true };
return BarcodeReader.Read(path, options)
.Select(r => r.Value)
.ToArray();
}
}Imports IronBarCode
Public Class BarcodeService
' No constructor initialization — license set once at app startup
' No Dispose — no instance to clean up
Public Function ReadFile(path As String) As String()
Dim options As New BarcodeReaderOptions With {.ExpectMultipleBarcodes = True}
Return BarcodeReader.Read(path, options) _
.Select(Function(r) r.Value) _
.ToArray()
End Function
End ClassImports IronBarCode
Public Class BarcodeService
' No constructor initialization — license set once at app startup
' No Dispose — no instance to clean up
Public Function ReadFile(path As String) As String()
Dim options As New BarcodeReaderOptions With {.ExpectMultipleBarcodes = True}
Return BarcodeReader.Read(path, options) _
.Select(Function(r) r.Value) _
.ToArray()
End Function
End Class該類損失了構造函式,其_router字段。 如果此服務在DI中註冊為單例或範圍服務來管理路由器生命周期,該註冊可以簡化或服務可以成為一組靜態方法。
閱讀速度與超時映射
Dynamsoft使用一個以毫秒為單位的Timeout,優化為相機幀率。 IronBarcode使用ReadingSpeed枚舉:
| Dynamsoft設置 | IronBarcode相當 |
|---|---|
settings.Timeout = 100(相機管線) | Speed = ReadingSpeed.Faster |
| 低超時(優先考慮速度) | Speed = ReadingSpeed.Balanced |
| 高超時(優先考慮準確性) | Speed = ReadingSpeed.Detailed |
| 最大準確性,無時間壓力 | Speed = ReadingSpeed.ExtremeDetail |
對於大多數文件處理工作流來說,處理量比低於100ms的響應時間更重要,ReadingSpeed.Balanced是正確的預設值:
var options = new BarcodeReaderOptions
{
Speed = ReadingSpeed.Balanced,
ExpectMultipleBarcodes = true,
MaxParallelThreads = 4
};var options = new BarcodeReaderOptions
{
Speed = ReadingSpeed.Balanced,
ExpectMultipleBarcodes = true,
MaxParallelThreads = 4
};Dim options As New BarcodeReaderOptions With {
.Speed = ReadingSpeed.Balanced,
.ExpectMultipleBarcodes = True,
.MaxParallelThreads = 4
}Dim options As New BarcodeReaderOptions With {
.Speed = ReadingSpeed.Balanced,
.ExpectMultipleBarcodes = True,
.MaxParallelThreads = 4
}常見遷移問題
BarcodeResultItem.GetText() vs result.Value
存取器從一個方法改為一個屬性:
// Before
string value = item.GetText();
// After
string value = result.Value;// Before
string value = item.GetText();
// After
string value = result.Value;' Before
Dim value As String = item.GetText()
' After
Dim value As String = result.Value' Before
Dim value As String = item.GetText()
' After
Dim value As String = result.ValueBarcodeResultItem.GetFormatString() vs result.Format
Dynamsoft通過GetFormatString()以字串形式返回格式。 IronBarcode在BarcodeEncoding枚舉公開:
// Before
if (item.GetFormatString() == "QR_CODE")
Console.WriteLine("Found QR code");
// After
if (result.Format == BarcodeEncoding.QRCode)
Console.WriteLine("Found QR code");
// For logging without enum comparison — .ToString() works on both
Console.WriteLine($"Format: {result.Format}");// Before
if (item.GetFormatString() == "QR_CODE")
Console.WriteLine("Found QR code");
// After
if (result.Format == BarcodeEncoding.QRCode)
Console.WriteLine("Found QR code");
// For logging without enum comparison — .ToString() works on both
Console.WriteLine($"Format: {result.Format}");' Before
If item.GetFormatString() = "QR_CODE" Then
Console.WriteLine("Found QR code")
End If
' After
If result.Format = BarcodeEncoding.QRCode Then
Console.WriteLine("Found QR code")
End If
' For logging without enum comparison — .ToString() works on both
Console.WriteLine($"Format: {result.Format}")' Before
If item.GetFormatString() = "QR_CODE" Then
Console.WriteLine("Found QR code")
End If
' After
If result.Format = BarcodeEncoding.QRCode Then
Console.WriteLine("Found QR code")
End If
' For logging without enum comparison — .ToString() works on both
Console.WriteLine($"Format: {result.Format}")空結果與空集合
Dynamsoft的null。 IronBarcode返回一個空集合。 更新空檢查:
// Before: null check required
CapturedResult result = router.Capture(path, PresetTemplate.PT_READ_BARCODES);
var items = result.GetDecodedBarcodesResult()?.GetItems();
if (items != null && items.Length > 0)
Process(items[0].GetText());
// After: null-safe but also correct to check Count
var results = BarcodeReader.Read(path);
if (results.Any())
Process(results.First().Value);// Before: null check required
CapturedResult result = router.Capture(path, PresetTemplate.PT_READ_BARCODES);
var items = result.GetDecodedBarcodesResult()?.GetItems();
if (items != null && items.Length > 0)
Process(items[0].GetText());
// After: null-safe but also correct to check Count
var results = BarcodeReader.Read(path);
if (results.Any())
Process(results.First().Value);Imports System.Linq
' Before: null check required
Dim result As CapturedResult = router.Capture(path, PresetTemplate.PT_READ_BARCODES)
Dim items = result.GetDecodedBarcodesResult()?.GetItems()
If items IsNot Nothing AndAlso items.Length > 0 Then
Process(items(0).GetText())
End If
' After: null-safe but also correct to check Count
Dim results = BarcodeReader.Read(path)
If results.Any() Then
Process(results.First().Value)
End IfImports System.Linq
' Before: null check required
Dim result As CapturedResult = router.Capture(path, PresetTemplate.PT_READ_BARCODES)
Dim items = result.GetDecodedBarcodesResult()?.GetItems()
If items IsNot Nothing AndAlso items.Length > 0 Then
Process(items(0).GetText())
End If
' After: null-safe but also correct to check Count
Dim results = BarcodeReader.Read(path)
If results.Any() Then
Process(results.First().Value)
End IfSimplifiedCaptureVisionSettings to BarcodeReaderOptions
GetSimplifiedSettings / Read:
// Before
var settings = router.GetSimplifiedSettings(PresetTemplate.PT_READ_BARCODES);
settings.BarcodeSettings.ExpectedBarcodesCount = 0;
settings.Timeout = 500;
router.UpdateSettings(PresetTemplate.PT_READ_BARCODES, settings);
var result = router.Capture(path, PresetTemplate.PT_READ_BARCODES);
// After
var options = new BarcodeReaderOptions
{
Speed = ReadingSpeed.Balanced,
ExpectMultipleBarcodes = true
};
var results = BarcodeReader.Read(path, options);// Before
var settings = router.GetSimplifiedSettings(PresetTemplate.PT_READ_BARCODES);
settings.BarcodeSettings.ExpectedBarcodesCount = 0;
settings.Timeout = 500;
router.UpdateSettings(PresetTemplate.PT_READ_BARCODES, settings);
var result = router.Capture(path, PresetTemplate.PT_READ_BARCODES);
// After
var options = new BarcodeReaderOptions
{
Speed = ReadingSpeed.Balanced,
ExpectMultipleBarcodes = true
};
var results = BarcodeReader.Read(path, options);' Before
Dim settings = router.GetSimplifiedSettings(PresetTemplate.PT_READ_BARCODES)
settings.BarcodeSettings.ExpectedBarcodesCount = 0
settings.Timeout = 500
router.UpdateSettings(PresetTemplate.PT_READ_BARCODES, settings)
Dim result = router.Capture(path, PresetTemplate.PT_READ_BARCODES)
' After
Dim options As New BarcodeReaderOptions With {
.Speed = ReadingSpeed.Balanced,
.ExpectMultipleBarcodes = True
}
Dim results = BarcodeReader.Read(path, options)' Before
Dim settings = router.GetSimplifiedSettings(PresetTemplate.PT_READ_BARCODES)
settings.BarcodeSettings.ExpectedBarcodesCount = 0
settings.Timeout = 500
router.UpdateSettings(PresetTemplate.PT_READ_BARCODES, settings)
Dim result = router.Capture(path, PresetTemplate.PT_READ_BARCODES)
' After
Dim options As New BarcodeReaderOptions With {
.Speed = ReadingSpeed.Balanced,
.ExpectMultipleBarcodes = True
}
Dim results = BarcodeReader.Read(path, options)遷移檢查清單
運行這些搜尋以找到所有需要更新的Dynamsoft參考:
grep -r "using Dynamsoft\." --include="*.cs" .
grep -r "LicenseManager.InitLicense\|EnumErrorCode\|EC_OK" --include="*.cs" .
grep -r "new CaptureVisionRouter\|router\.Capture\|PresetTemplate" --include="*.cs" .
grep -r "BarcodeResultItem\|GetDecodedBarcodesResult\|GetFormatString" --include="*.cs" .
grep -r "GetSimplifiedSettings\|UpdateSettings\|SimplifiedCaptureVisionSettings" --include="*.cs" .
grep -r "router\.Dispose\|InitLicenseFromLicenseContent" --include="*.cs" .
處理每一個匹配:
using Dynamsoft.*→using IronBarCodeLicenseManager.InitLicense(key, out errorMsg)+ 錯誤檢查 →IronBarCode.License.LicenseKey = "key"new CaptureVisionRouter()→ 移除(靜態API,無實例)router.Capture(path, PresetTemplate.PT_READ_BARCODES)→BarcodeReader.Read(path)router.Capture(imageData, ...)(原始像素緩衝區) →BarcodeReader.Read(imageBytes)- 每頁PDF渲染迴圈 +
router.Capture(pageBytes, ...)→BarcodeReader.Read(pdfPath) BarcodeResultItem.GetText()→result.ValueBarcodeResultItem.GetFormatString()→result.FormatGetSimplifiedSettings(...)+UpdateSettings(...)→new BarcodeReaderOptions { ... }router.Dispose()→ 移除LicenseManager.InitLicenseFromLicenseContent(...)→ 完全移除- 如果只是為支持Dynamsoft PDF處理而新增了PdfiumViewer NuGet套件,請將其移除
- 移除Dynamsoft授權端點的Docker/Kubernetes網路出口規則
- 在部署配置中設置
IRONBARCODE_KEY環境變數
Curtis Chau擁有Carleton大學的電腦科學學士學位,專精於前端開發,擁有Node.js、TypeScript、JavaScript和React的專業知識。Curtis熱衷於建立直觀且美觀的使用者介面,喜愛使用現代框架並建立結構良好、視覺吸引力的手冊。
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