使用.NET條碼閱讀器SDK

IronBarcode整合的最佳用例

IronBarcode 非常適合用於：

*庫存管理系統*– 自動掃描條碼以追蹤產品和庫存水準。 物流應用– 處理掃描的條碼影像，用於出貨、收貨和包裹追蹤。 零售POS系統– 驗證銷售交易和價格查詢的條碼掃描。 文件處理**– 從 PDF 發票、收據或身分證中提取條碼資料。

如何在 .NET 中建立條碼讀取器 SDK

要建立一個可以作為服務在應用程式中公開的條碼閱讀器，您需要將 IronBarcode 整合到 REST API 或 Web 應用程式中。以下範例展示如何使用 ASP.NET Core 實作此操作。

1.安裝用於在 C# 中讀取條碼的 .NET 函式庫

2. 建立一個可重複使用的條碼掃描類別。
3. 發展從不同來源讀取條碼的方法。
4. 將條碼影像讀取功能整合到您的應用程式中。
5. 測試並優化效能。

開始之前

如果您還沒有下載 IronBarcode，請立即下載到您的專案中。 請確保您擁有適用於您預期用途的正確許可證金鑰。 請注意，透過公共 API 公開 IronBarcode 的功能或將其轉售為獨立服務需要額外的許可（SDK、OEM 或 SaaS）。 在繼續操作之前，請務必了解許可證方面的注意事項。

建立條碼掃描器類

在設定好 IronBarcode 並將其安裝到您的專案中之後，您可以建立一個可重複使用的條碼掃描器類，該類別整合了 IronBarcode 的功能並將其公開為 API 端點。

using IronBarCode;
using System.IO;

namespace BarcodeIntegration
{
    public class BarcodeScanner
    {
        static BarcodeScanner()
        {
            // Set the license key
            IronBarCode.License.LicenseKey = "Your-License-Key";
        }

        // Method to read a barcode from an image file
        public string ReadBarcodeFromImage(string imagePath)
        {
            try
            {
                // Try to read the barcode from the given image path
                var barcode = BarcodeReader.Read(imagePath);
                return barcode?.ToString() ?? "No Barcode Found"; // Return the barcode string or indicate no barcode was found
            }
            catch (Exception ex)
            {
                // Return an error message if an exception occurs
                return $"Error reading barcode: {ex.Message}";
            }
        }

        // Method to read a barcode from a stream (e.g., file upload or memory stream)
        public string ReadBarcodeFromStream(Stream inputStream)
        {
            try
            {
                // Try to read the barcode from the given stream
                var barcode = BarcodeReader.Read(inputStream);
                return barcode?.ToString() ?? "No barcode found";
            }
            catch (Exception ex)
            {
                return $"Error reading barcode: {ex.Message}";
            }
        }

        // Method to read a barcode from a PDF file
        public string ReadBarcodeFromPdf(string filePath)
        {
            try
            {
                // Try to read the barcode from the given PDF file path
                var barcode = BarcodeReader.ReadPdf(filePath);
                return barcode?.ToString() ?? "No barcode found";
            }
            catch (Exception ex)
            {
                return $"Error reading barcode: {ex.Message}";
            }
        }
    }
}

using IronBarCode;
using System.IO;

namespace BarcodeIntegration
{
    public class BarcodeScanner
    {
        static BarcodeScanner()
        {
            // Set the license key
            IronBarCode.License.LicenseKey = "Your-License-Key";
        }

        // Method to read a barcode from an image file
        public string ReadBarcodeFromImage(string imagePath)
        {
            try
            {
                // Try to read the barcode from the given image path
                var barcode = BarcodeReader.Read(imagePath);
                return barcode?.ToString() ?? "No Barcode Found"; // Return the barcode string or indicate no barcode was found
            }
            catch (Exception ex)
            {
                // Return an error message if an exception occurs
                return $"Error reading barcode: {ex.Message}";
            }
        }

        // Method to read a barcode from a stream (e.g., file upload or memory stream)
        public string ReadBarcodeFromStream(Stream inputStream)
        {
            try
            {
                // Try to read the barcode from the given stream
                var barcode = BarcodeReader.Read(inputStream);
                return barcode?.ToString() ?? "No barcode found";
            }
            catch (Exception ex)
            {
                return $"Error reading barcode: {ex.Message}";
            }
        }

        // Method to read a barcode from a PDF file
        public string ReadBarcodeFromPdf(string filePath)
        {
            try
            {
                // Try to read the barcode from the given PDF file path
                var barcode = BarcodeReader.ReadPdf(filePath);
                return barcode?.ToString() ?? "No barcode found";
            }
            catch (Exception ex)
            {
                return $"Error reading barcode: {ex.Message}";
            }
        }
    }
}

Imports IronBarCode
Imports System.IO

Namespace BarcodeIntegration
	Public Class BarcodeScanner
		Shared Sub New()
			' Set the license key
			IronBarCode.License.LicenseKey = "Your-License-Key"
		End Sub

		' Method to read a barcode from an image file
		Public Function ReadBarcodeFromImage(ByVal imagePath As String) As String
			Try
				' Try to read the barcode from the given image path
				Dim barcode = BarcodeReader.Read(imagePath)
				Return If(barcode?.ToString(), "No Barcode Found") ' Return the barcode string or indicate no barcode was found
			Catch ex As Exception
				' Return an error message if an exception occurs
				Return $"Error reading barcode: {ex.Message}"
			End Try
		End Function

		' Method to read a barcode from a stream (e.g., file upload or memory stream)
		Public Function ReadBarcodeFromStream(ByVal inputStream As Stream) As String
			Try
				' Try to read the barcode from the given stream
				Dim barcode = BarcodeReader.Read(inputStream)
				Return If(barcode?.ToString(), "No barcode found")
			Catch ex As Exception
				Return $"Error reading barcode: {ex.Message}"
			End Try
		End Function

		' Method to read a barcode from a PDF file
		Public Function ReadBarcodeFromPdf(ByVal filePath As String) As String
			Try
				' Try to read the barcode from the given PDF file path
				Dim barcode = BarcodeReader.ReadPdf(filePath)
				Return If(barcode?.ToString(), "No barcode found")
			Catch ex As Exception
				Return $"Error reading barcode: {ex.Message}"
			End Try
		End Function
	End Class
End Namespace

BarcodeScanner類別抽象化了 IronBarcode 的功能，使其易於整合到任何 .NET 應用程式中。 讓我們來詳細了解這裡包含的不同方法：

透過 REST API 公開條碼讀取功能

using Microsoft.AspNetCore.Mvc;
using System.IO;
using Microsoft.AspNetCore.Http;
using BarcodeIntegration;

[ApiController]
[Route("api/barcode")]
public class BarcodeController : ControllerBase
{
    private readonly BarcodeScanner _barcodeScanner;

    public BarcodeController()
    {
        // Initialize the BarcodeScanner class
        _barcodeScanner = new BarcodeScanner();
    }

    // POST endpoint to read barcode from an uploaded image
    [HttpPost("read-from-image")]
    public IActionResult ReadFromImage(IFormFile file)
    {
        using var stream = file.OpenReadStream();
        var result = _barcodeScanner.ReadBarcodeFromStream(stream);
        return Ok(new { Barcode = result }); // Return the barcode reading result
    }
}

using Microsoft.AspNetCore.Mvc;
using System.IO;
using Microsoft.AspNetCore.Http;
using BarcodeIntegration;

[ApiController]
[Route("api/barcode")]
public class BarcodeController : ControllerBase
{
    private readonly BarcodeScanner _barcodeScanner;

    public BarcodeController()
    {
        // Initialize the BarcodeScanner class
        _barcodeScanner = new BarcodeScanner();
    }

    // POST endpoint to read barcode from an uploaded image
    [HttpPost("read-from-image")]
    public IActionResult ReadFromImage(IFormFile file)
    {
        using var stream = file.OpenReadStream();
        var result = _barcodeScanner.ReadBarcodeFromStream(stream);
        return Ok(new { Barcode = result }); // Return the barcode reading result
    }
}

Imports Microsoft.AspNetCore.Mvc
Imports System.IO
Imports Microsoft.AspNetCore.Http
Imports BarcodeIntegration

<ApiController>
<Route("api/barcode")>
Public Class BarcodeController
	Inherits ControllerBase

	Private ReadOnly _barcodeScanner As BarcodeScanner

	Public Sub New()
		' Initialize the BarcodeScanner class
		_barcodeScanner = New BarcodeScanner()
	End Sub

	' POST endpoint to read barcode from an uploaded image
	<HttpPost("read-from-image")>
	Public Function ReadFromImage(ByVal file As IFormFile) As IActionResult
		Dim stream = file.OpenReadStream()
		Dim result = _barcodeScanner.ReadBarcodeFromStream(stream)
		Return Ok(New With {Key .Barcode = result}) ' Return the barcode reading result
	End Function
End Class

進階功能

為了進一步增強 SDK，可以考慮加入以下內容：

1.支援多種條碼類型： IronBarcode 支援讀取多種條碼。 您可以新增選項來配置您的 SDK，使其能夠一次接受多個條碼。 舉例來說

```csharp
public string ReadBarcodeFromImage(string imagePath)
{
    try
    {
        BarcodeReaderOptions options = new BarcodeReaderOptions()
        {
            ExpectMultipleBarcodes = true,
            ExpectBarcodeTypes = BarcodeEncoding.AllOneDimensional,
        };
        foreach (var barcode in BarcodeReader.Read(imagePath, options))
        {
            return barcode.ToString();
        }
        return "No barcode found";
    }
    catch (Exception ex)
    {
        return $"Error reading barcode: {ex.Message}";
    }
}
```

2.錯誤處理：擴展錯誤處理和日誌記錄，為 SDK 用戶提供更好的診斷。 3.批次處理：如果要處理一組影像中的多個條碼，可以建立接受影像陣列或流的方法。 4.客製化：提供條碼檢測參數的配置選項，例如準確度、速度和支援的條碼類型。

立即免費試用 IronBarcode

體驗IronBarcode的創新力量。 試試我們的免費試用版，探索適用於 .NET 應用程式的無縫條碼產生、讀取和編輯功能。 IronBarcode 擁有先進的功能、卓越的性能和用戶友好的介面，是滿足您所有條碼需求的終極解決方案。 立即開始免費試用，提升您的專案水準。