How to Read Barcodes From System Drawing Objects
从Cloudmersive条形码API迁移到IronBarcode
这是.NET条形码历史上最简单的迁移。 移除HTTP客户端。 添加NuGet包。 删除 API 密钥管理。 其余部分只需查找并替换即可。
Cloudmersive的.NET SDK是一个生成的REST API客户端——一个围绕HttpClient调用的薄包装。 应用程序中的每个 Cloudmersive 特定代码要么是该客户端的配置,要么是通过该客户端进行的调用,要么是网络请求失败时发生的错误处理。 IronBarcode不需要任何基础设施,它可以在本地处理条形码,无需网络依赖。
快速入门:三个步骤
第一步:交换包装
dotnet remove package Cloudmersive.APIClient.NET.Barcode
dotnet add package BarCode
dotnet remove package Cloudmersive.APIClient.NET.Barcode
dotnet add package BarCode
步骤 2:替换命名空间
// Remove these
using Cloudmersive.APIClient.NET.Barcode.Api;
using Cloudmersive.APIClient.NET.Barcode.Client;
// Add this
using IronBarCode;
// Remove these
using Cloudmersive.APIClient.NET.Barcode.Api;
using Cloudmersive.APIClient.NET.Barcode.Client;
// Add this
using IronBarCode;
Imports IronBarCode
步骤 3:将 API 密钥设置替换为许可证密钥
// Remove this
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY");
// Replace with this — set once at application startup
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
// Remove this
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY");
// Replace with this — set once at application startup
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
' Remove this
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY")
' Replace with this — set once at application startup
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY"
在ASP.NET Core应用程序中,许可证密钥放在builder.Build()之前:
using IronBarCode;
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
var builder = WebApplication.CreateBuilder(args);
// ... rest of startup
using IronBarCode;
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
var builder = WebApplication.CreateBuilder(args);
// ... rest of startup
Imports IronBarCode
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY"
Dim builder = WebApplication.CreateBuilder(args)
' ... rest of startup
成本:你过去的花费 vs 你未来的花费
迁移之前,最好先计算一下 Cloudmersive 集成的实际成本。 计算方法很简单:
| 每日交易量 | 每月请求 | Cloudmersive 层级 | IronBarcode (一次性) |
|---|---|---|---|
| 每天100 | 约3000 | 基础 $19.99/月 | $749 |
| 每天1000人 | 约30,000 | 商务高级 $99.99/月 | $749 |
| 每天 5,000 | 约15万 | 中型企业 $499.99/月 | $749 |
| 每天 10,000 | 约30万 | Enterprise(定制) | $749 |
| 每天 25,000 | 约75万 | Enterprise(定制) | 1499 美元(Plus3 位开发者) |
如果您为Cloudmersive支付的费用超过每月约$63,IronBarcode的Lite许可证将在第一年内自动偿还其费用。 达到盈亏平衡后,IronBarcode是永久许可证,无需续订,也没有每次请求的费用。
代码迁移示例
二维码生成
最常见的 Cloudmersive 生成调用直接映射到IronBarcode:
之前(Cloudmersive):
using Cloudmersive.APIClient.NET.Barcode.Api;
using Cloudmersive.APIClient.NET.Barcode.Client;
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY");
var apiInstance = new GenerateBarcodeApi();
byte[] result = apiInstance.GenerateBarcodeQRCode("https://example.com");
File.WriteAllBytes("qr.png", result);
using Cloudmersive.APIClient.NET.Barcode.Api;
using Cloudmersive.APIClient.NET.Barcode.Client;
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY");
var apiInstance = new GenerateBarcodeApi();
byte[] result = apiInstance.GenerateBarcodeQRCode("https://example.com");
File.WriteAllBytes("qr.png", result);
Imports Cloudmersive.APIClient.NET.Barcode.Api
Imports Cloudmersive.APIClient.NET.Barcode.Client
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY")
Dim apiInstance As New GenerateBarcodeApi()
Dim result As Byte() = apiInstance.GenerateBarcodeQRCode("https://example.com")
File.WriteAllBytes("qr.png", result)
(IronBarcode之后):
using IronBarCode;
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
byte[] result = QRCodeWriter.CreateQrCode("https://example.com", 500)
.ToPngBinaryData();
File.WriteAllBytes("qr.png", result);
// Or save directly
QRCodeWriter.CreateQrCode("https://example.com", 500)
.SaveAsPng("qr.png");
using IronBarCode;
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
byte[] result = QRCodeWriter.CreateQrCode("https://example.com", 500)
.ToPngBinaryData();
File.WriteAllBytes("qr.png", result);
// Or save directly
QRCodeWriter.CreateQrCode("https://example.com", 500)
.SaveAsPng("qr.png");
Imports IronBarCode
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY"
Dim result As Byte() = QRCodeWriter.CreateQrCode("https://example.com", 500).ToPngBinaryData()
File.WriteAllBytes("qr.png", result)
' Or save directly
QRCodeWriter.CreateQrCode("https://example.com", 500).SaveAsPng("qr.png")
Code128生成
之前(Cloudmersive):
using Cloudmersive.APIClient.NET.Barcode.Api;
using Cloudmersive.APIClient.NET.Barcode.Client;
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY");
var apiInstance = new GenerateBarcodeApi();
byte[] result = apiInstance.GenerateBarcodeCode128("SHIP-2024031500428");
File.WriteAllBytes("barcode.png", result);
using Cloudmersive.APIClient.NET.Barcode.Api;
using Cloudmersive.APIClient.NET.Barcode.Client;
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY");
var apiInstance = new GenerateBarcodeApi();
byte[] result = apiInstance.GenerateBarcodeCode128("SHIP-2024031500428");
File.WriteAllBytes("barcode.png", result);
Imports Cloudmersive.APIClient.NET.Barcode.Api
Imports Cloudmersive.APIClient.NET.Barcode.Client
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY")
Dim apiInstance As New GenerateBarcodeApi()
Dim result As Byte() = apiInstance.GenerateBarcodeCode128("SHIP-2024031500428")
File.WriteAllBytes("barcode.png", result)
(IronBarcode之后):
using IronBarCode;
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
BarcodeWriter.CreateBarcode("SHIP-2024031500428", BarcodeEncoding.Code128)
.SaveAsPng("barcode.png");
// Or get bytes directly
byte[] result = BarcodeWriter.CreateBarcode("SHIP-2024031500428", BarcodeEncoding.Code128)
.ToPngBinaryData();
using IronBarCode;
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
BarcodeWriter.CreateBarcode("SHIP-2024031500428", BarcodeEncoding.Code128)
.SaveAsPng("barcode.png");
// Or get bytes directly
byte[] result = BarcodeWriter.CreateBarcode("SHIP-2024031500428", BarcodeEncoding.Code128)
.ToPngBinaryData();
Imports IronBarCode
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY"
BarcodeWriter.CreateBarcode("SHIP-2024031500428", BarcodeEncoding.Code128) _
.SaveAsPng("barcode.png")
' Or get bytes directly
Dim result As Byte() = BarcodeWriter.CreateBarcode("SHIP-2024031500428", BarcodeEncoding.Code128) _
.ToPngBinaryData()
条形码读取
之前(Cloudmersive):
using Cloudmersive.APIClient.NET.Barcode.Api;
using Cloudmersive.APIClient.NET.Barcode.Client;
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY");
var scanApi = new BarcodeScanApi();
using (var stream = File.OpenRead("barcode.png"))
{
var result = scanApi.BarcodeScanImage(stream);
if (result.Successful == true)
{
Console.WriteLine($"Value: {result.RawText}");
Console.WriteLine($"Type: {result.BarcodeType}");
}
}
using Cloudmersive.APIClient.NET.Barcode.Api;
using Cloudmersive.APIClient.NET.Barcode.Client;
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY");
var scanApi = new BarcodeScanApi();
using (var stream = File.OpenRead("barcode.png"))
{
var result = scanApi.BarcodeScanImage(stream);
if (result.Successful == true)
{
Console.WriteLine($"Value: {result.RawText}");
Console.WriteLine($"Type: {result.BarcodeType}");
}
}
Imports Cloudmersive.APIClient.NET.Barcode.Api
Imports Cloudmersive.APIClient.NET.Barcode.Client
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY")
Dim scanApi As New BarcodeScanApi()
Using stream = File.OpenRead("barcode.png")
Dim result = scanApi.BarcodeScanImage(stream)
If result.Successful = True Then
Console.WriteLine($"Value: {result.RawText}")
Console.WriteLine($"Type: {result.BarcodeType}")
End If
End Using
(IronBarcode之后):
using IronBarCode;
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
var results = BarcodeReader.Read("barcode.png");
var result = results.First();
Console.WriteLine($"Value: {result.Value}");
Console.WriteLine($"Type: {result.Format}");
using IronBarCode;
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
var results = BarcodeReader.Read("barcode.png");
var result = results.First();
Console.WriteLine($"Value: {result.Value}");
Console.WriteLine($"Type: {result.Format}");
Imports IronBarCode
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY"
Dim results = BarcodeReader.Read("barcode.png")
Dim result = results.First()
Console.WriteLine($"Value: {result.Value}")
Console.WriteLine($"Type: {result.Format}")
异步条形码读取
如果您的 Cloudmersive 集成使用异步 API:
之前(Cloudmersive):
using Cloudmersive.APIClient.NET.Barcode.Api;
using Cloudmersive.APIClient.NET.Barcode.Client;
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY");
var scanApi = new BarcodeScanApi();
using (var stream = File.OpenRead("barcode.png"))
{
var result = await scanApi.BarcodeScanImageAsync(stream);
return result.Successful == true ? result.RawText : null;
}
using Cloudmersive.APIClient.NET.Barcode.Api;
using Cloudmersive.APIClient.NET.Barcode.Client;
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY");
var scanApi = new BarcodeScanApi();
using (var stream = File.OpenRead("barcode.png"))
{
var result = await scanApi.BarcodeScanImageAsync(stream);
return result.Successful == true ? result.RawText : null;
}
Imports Cloudmersive.APIClient.NET.Barcode.Api
Imports Cloudmersive.APIClient.NET.Barcode.Client
Configuration.Default.ApiKey.Add("Apikey", "YOUR-CLOUDMERSIVE-API-KEY")
Dim scanApi As New BarcodeScanApi()
Using stream = File.OpenRead("barcode.png")
Dim result = Await scanApi.BarcodeScanImageAsync(stream)
Return If(result.Successful = True, result.RawText, Nothing)
End Using
(IronBarcode之后):
using IronBarCode;
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
// IronBarcode is synchronous; wrap in Task.Run to free the calling thread for CPU-bound work
var results = await Task.Run(() => BarcodeReader.Read("barcode.png"));
return results.FirstOrDefault()?.Value;
using IronBarCode;
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
// IronBarcode is synchronous; wrap in Task.Run to free the calling thread for CPU-bound work
var results = await Task.Run(() => BarcodeReader.Read("barcode.png"));
return results.FirstOrDefault()?.Value;
Imports IronBarCode
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY"
' IronBarcode is synchronous; wrap in Task.Run to free the calling thread for CPU-bound work
Dim results = Await Task.Run(Function() BarcodeReader.Read("barcode.png"))
Return results.FirstOrDefault()?.Value
从 PDF 中读取条形码
Cloudmersive本身不支持PDF格式。 如果您的现有代码在扫描前会从 PDF 中提取图像,请将整个流程替换为单个IronBarcode调用:
之前(Cloudmersive——需要单独提取PDF文件):
// Requires a separate PDF library to extract pages as images,
// then one Cloudmersive API call per extracted page image.
var scanApi = new BarcodeScanApi();
foreach (var pageImagePath in ExtractPdfPages("document.pdf"))
{
using var stream = File.OpenRead(pageImagePath);
var result = await scanApi.BarcodeScanImageAsync(stream);
if (result.Successful == true)
{
Console.WriteLine($"Found: {result.RawText}");
}
}
// Requires a separate PDF library to extract pages as images,
// then one Cloudmersive API call per extracted page image.
var scanApi = new BarcodeScanApi();
foreach (var pageImagePath in ExtractPdfPages("document.pdf"))
{
using var stream = File.OpenRead(pageImagePath);
var result = await scanApi.BarcodeScanImageAsync(stream);
if (result.Successful == true)
{
Console.WriteLine($"Found: {result.RawText}");
}
}
Imports System.IO
Imports Cloudmersive.APIClient.NET.BarcodeScan
' Requires a separate PDF library to extract pages as images,
' then one Cloudmersive API call per extracted page image.
Dim scanApi As New BarcodeScanApi()
For Each pageImagePath In ExtractPdfPages("document.pdf")
Using stream As FileStream = File.OpenRead(pageImagePath)
Dim result = Await scanApi.BarcodeScanImageAsync(stream)
If result.Successful = True Then
Console.WriteLine($"Found: {result.RawText}")
End If
End Using
Next
(IronBarcode之后):
using IronBarCode;
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
// One call — all pages, all barcodes, no image extraction step
var results = BarcodeReader.Read("document.pdf");
foreach (var result in results)
{
Console.WriteLine($"Page {result.PageNumber}: {result.Value}");
}
using IronBarCode;
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
// One call — all pages, all barcodes, no image extraction step
var results = BarcodeReader.Read("document.pdf");
foreach (var result in results)
{
Console.WriteLine($"Page {result.PageNumber}: {result.Value}");
}
Imports IronBarCode
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY"
' One call — all pages, all barcodes, no image extraction step
Dim results = BarcodeReader.Read("document.pdf")
For Each result In results
Console.WriteLine($"Page {result.PageNumber}: {result.Value}")
Next
多条形码检测
如果您有可以扫描带有多个条形码的文档的代码:
之前(Cloudmersive——需要多次调用):
// Cloudmersive returns one barcode per scan — multiple calls for multiple barcodes
var scanApi = new BarcodeScanApi();
var barcodeValues = new List<string>();
foreach (var croppedRegion in CropBarcodeRegions("invoice.png"))
{
using var stream = new MemoryStream(croppedRegion);
var result = await scanApi.BarcodeScanImageAsync(stream);
if (result.Successful == true)
barcodeValues.Add(result.RawText);
}
// Cloudmersive returns one barcode per scan — multiple calls for multiple barcodes
var scanApi = new BarcodeScanApi();
var barcodeValues = new List<string>();
foreach (var croppedRegion in CropBarcodeRegions("invoice.png"))
{
using var stream = new MemoryStream(croppedRegion);
var result = await scanApi.BarcodeScanImageAsync(stream);
if (result.Successful == true)
barcodeValues.Add(result.RawText);
}
Imports System.IO
Imports System.Collections.Generic
Imports System.Threading.Tasks
' Cloudmersive returns one barcode per scan — multiple calls for multiple barcodes
Dim scanApi As New BarcodeScanApi()
Dim barcodeValues As New List(Of String)()
For Each croppedRegion In CropBarcodeRegions("invoice.png")
Using stream As New MemoryStream(croppedRegion)
Dim result = Await scanApi.BarcodeScanImageAsync(stream)
If result.Successful = True Then
barcodeValues.Add(result.RawText)
End If
End Using
Next
(IronBarcode之后):
using IronBarCode;
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
var options = new BarcodeReaderOptions
{
Speed = ReadingSpeed.Balanced,
ExpectMultipleBarcodes = true,
};
// One call — returns all barcodes in the image
var results = BarcodeReader.Read("invoice.png", options);
var barcodeValues = results.Select(r => r.Value).ToList();
using IronBarCode;
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY";
var options = new BarcodeReaderOptions
{
Speed = ReadingSpeed.Balanced,
ExpectMultipleBarcodes = true,
};
// One call — returns all barcodes in the image
var results = BarcodeReader.Read("invoice.png", options);
var barcodeValues = results.Select(r => r.Value).ToList();
Imports IronBarCode
IronBarCode.License.LicenseKey = "YOUR-LICENSE-KEY"
Dim options As New BarcodeReaderOptions With {
.Speed = ReadingSpeed.Balanced,
.ExpectMultipleBarcodes = True
}
' One call — returns all barcodes in the image
Dim results = BarcodeReader.Read("invoice.png", options)
Dim barcodeValues = results.Select(Function(r) r.Value).ToList()
拆除不再需要的基础设施
在迁移过程中,这一部分需要删除的代码比编写的代码还要多。
移除 HTTP 异常处理
Cloudmersive 操作可能会因网络错误、HTTP 4xx/5xx 响应和超时异常而失败。 这通常会产生IronBarcode不需要的 try/catch 结构:
// Remove all of this
try
{
var result = await scanApi.BarcodeScanImageAsync(stream);
// ...
}
catch (ApiException ex) when (ex.ErrorCode == 429)
{
// Rate limited — wait and retry
await Task.Delay(TimeSpan.FromSeconds(2));
// retry logic...
}
catch (ApiException ex) when (ex.ErrorCode == 503)
{
// Service unavailable — Cloudmersive is down
_logger.LogError("Cloudmersive unavailable: {Message}", ex.Message);
throw;
}
catch (HttpRequestException ex)
{
// Network error
_logger.LogError("Network failure: {Message}", ex.Message);
throw;
}
catch (TaskCanceledException)
{
// Timeout
_logger.LogError("Cloudmersive request timed out");
throw;
}
// Remove all of this
try
{
var result = await scanApi.BarcodeScanImageAsync(stream);
// ...
}
catch (ApiException ex) when (ex.ErrorCode == 429)
{
// Rate limited — wait and retry
await Task.Delay(TimeSpan.FromSeconds(2));
// retry logic...
}
catch (ApiException ex) when (ex.ErrorCode == 503)
{
// Service unavailable — Cloudmersive is down
_logger.LogError("Cloudmersive unavailable: {Message}", ex.Message);
throw;
}
catch (HttpRequestException ex)
{
// Network error
_logger.LogError("Network failure: {Message}", ex.Message);
throw;
}
catch (TaskCanceledException)
{
// Timeout
_logger.LogError("Cloudmersive request timed out");
throw;
}
Imports System
Imports System.Threading.Tasks
' Remove all of this
Try
Dim result = Await scanApi.BarcodeScanImageAsync(stream)
' ...
Catch ex As ApiException When ex.ErrorCode = 429
' Rate limited — wait and retry
Await Task.Delay(TimeSpan.FromSeconds(2))
' retry logic...
Catch ex As ApiException When ex.ErrorCode = 503
' Service unavailable — Cloudmersive is down
_logger.LogError("Cloudmersive unavailable: {Message}", ex.Message)
Throw
Catch ex As HttpRequestException
' Network error
_logger.LogError("Network failure: {Message}", ex.Message)
Throw
Catch ex As TaskCanceledException
' Timeout
_logger.LogError("Cloudmersive request timed out")
Throw
End Try
IronBarcode不会抛出网络异常。 如果无法从输入中解码条形码,它会抛出BarcodeException,这是内容问题而非基础设施问题。 简化的错误处理:
using IronBarCode;
var results = BarcodeReader.Read("barcode.png");
if (!results.Any())
{
_logger.LogWarning("No barcode detected in image");
}
using IronBarCode;
var results = BarcodeReader.Read("barcode.png");
if (!results.Any())
{
_logger.LogWarning("No barcode detected in image");
}
Imports IronBarCode
Dim results = BarcodeReader.Read("barcode.png")
If Not results.Any() Then
_logger.LogWarning("No barcode detected in image")
End If
移除重试逻辑
如果您的 Cloudmersive 集成包含重试策略(例如 Polly、自定义重试循环或指数退避),请将其完全移除:
// Remove retry infrastructure
// var retryPolicy = Policy
// .Handle<ApiException>()
// .WaitAndRetryAsync(3, retryAttempt =>
// TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)));
// IronBarcode — no retry needed
var results = BarcodeReader.Read("barcode.png");
// Remove retry infrastructure
// var retryPolicy = Policy
// .Handle<ApiException>()
// .WaitAndRetryAsync(3, retryAttempt =>
// TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)));
// IronBarcode — no retry needed
var results = BarcodeReader.Read("barcode.png");
' Remove retry infrastructure
' Dim retryPolicy = Policy _
' .Handle(Of ApiException)() _
' .WaitAndRetryAsync(3, Function(retryAttempt) _
' TimeSpan.FromSeconds(Math.Pow(2, retryAttempt)))
' IronBarcode — no retry needed
Dim results = BarcodeReader.Read("barcode.png")
移除速率限制跟踪
如果您的代码跟踪 API 调用次数以保持在 Cloudmersive 的每月配额范围内:
// Remove quota tracking
// private static int _monthlyCallCount = 0;
// private const int MonthlyLimit = 30000;
//
// if (Interlocked.Increment(ref _monthlyCallCount) > MonthlyLimit)
// throw new InvalidOperationException("Monthly Cloudmersive quota exceeded");
// IronBarcode — no quota
var results = BarcodeReader.Read("barcode.png");
// Remove quota tracking
// private static int _monthlyCallCount = 0;
// private const int MonthlyLimit = 30000;
//
// if (Interlocked.Increment(ref _monthlyCallCount) > MonthlyLimit)
// throw new InvalidOperationException("Monthly Cloudmersive quota exceeded");
// IronBarcode — no quota
var results = BarcodeReader.Read("barcode.png");
' Remove quota tracking
' Private Shared _monthlyCallCount As Integer = 0
' Private Const MonthlyLimit As Integer = 30000
'
' If Interlocked.Increment(_monthlyCallCount) > MonthlyLimit Then
' Throw New InvalidOperationException("Monthly Cloudmersive quota exceeded")
' IronBarcode — no quota
Dim results = BarcodeReader.Read("barcode.png")
移除网络超时配置
Cloudmersive客户端通常包含超时配置。 移除它:
// Remove timeout configuration
// Configuration.Default.Timeout = 30000; // 30 second timeout
// Configuration.Default.ConnectionTimeout = 5000;
// IronBarcode has no network timeout — no network
// Remove timeout configuration
// Configuration.Default.Timeout = 30000; // 30 second timeout
// Configuration.Default.ConnectionTimeout = 5000;
// IronBarcode has no network timeout — no network
' Remove timeout configuration
' Configuration.Default.Timeout = 30000 ' 30 second timeout
' Configuration.Default.ConnectionTimeout = 5000
' IronBarcode has no network timeout — no network
移除 API 密钥轮换
如果您的应用程序按计划轮换 API 密钥或将其存储在密钥管理系统中:
// Simplify this pattern
// private string GetCloudmersiveApiKey() =>
// _secretManager.GetSecret("cloudmersive-api-key-current");
//
// Configuration.Default.ApiKey["Apikey"] = GetCloudmersiveApiKey();
// IronBarcode — set once at startup
IronBarCode.License.LicenseKey = _configuration["IronBarcode:LicenseKey"];
// or literal: "YOUR-LICENSE-KEY"
// Simplify this pattern
// private string GetCloudmersiveApiKey() =>
// _secretManager.GetSecret("cloudmersive-api-key-current");
//
// Configuration.Default.ApiKey["Apikey"] = GetCloudmersiveApiKey();
// IronBarcode — set once at startup
IronBarCode.License.LicenseKey = _configuration["IronBarcode:LicenseKey"];
// or literal: "YOUR-LICENSE-KEY"
' Simplify this pattern
' Private Function GetCloudmersiveApiKey() As String
' Return _secretManager.GetSecret("cloudmersive-api-key-current")
' End Function
'
' Configuration.Default.ApiKey("Apikey") = GetCloudmersiveApiKey()
' IronBarcode — set once at startup
IronBarCode.License.LicenseKey = _configuration("IronBarcode:LicenseKey")
' or literal: "YOUR-LICENSE-KEY"
常见迁移问题
Cloudmersive返回的byte[]用于生成
Cloudmersive的生成方法直接返回byte[]。 IronBarcode返回一个GeneratedBarcode对象,为您提供更多选项:
// Cloudmersive returned byte[] directly
byte[] cloudmersiveResult = apiInstance.GenerateBarcodeQRCode("data");
// IronBarcode — call ToPngBinaryData() for the equivalent byte[]
byte[] ironBarcodeResult = BarcodeWriter.CreateBarcode("data", BarcodeEncoding.QRCode)
.ToPngBinaryData();
// Or save directly (often simpler)
BarcodeWriter.CreateBarcode("data", BarcodeEncoding.QRCode)
.SaveAsPng("output.png");
// Or get other formats
byte[] jpegBytes = BarcodeWriter.CreateBarcode("data", BarcodeEncoding.QRCode)
.ToJpegBinaryData();
// Cloudmersive returned byte[] directly
byte[] cloudmersiveResult = apiInstance.GenerateBarcodeQRCode("data");
// IronBarcode — call ToPngBinaryData() for the equivalent byte[]
byte[] ironBarcodeResult = BarcodeWriter.CreateBarcode("data", BarcodeEncoding.QRCode)
.ToPngBinaryData();
// Or save directly (often simpler)
BarcodeWriter.CreateBarcode("data", BarcodeEncoding.QRCode)
.SaveAsPng("output.png");
// Or get other formats
byte[] jpegBytes = BarcodeWriter.CreateBarcode("data", BarcodeEncoding.QRCode)
.ToJpegBinaryData();
Imports Cloudmersive.APIClient
Imports IronBarCode
' Cloudmersive returned byte() directly
Dim cloudmersiveResult As Byte() = apiInstance.GenerateBarcodeQRCode("data")
' IronBarcode — call ToPngBinaryData() for the equivalent byte()
Dim ironBarcodeResult As Byte() = BarcodeWriter.CreateBarcode("data", BarcodeEncoding.QRCode) _
.ToPngBinaryData()
' Or save directly (often simpler)
BarcodeWriter.CreateBarcode("data", BarcodeEncoding.QRCode) _
.SaveAsPng("output.png")
' Or get other formats
Dim jpegBytes As Byte() = BarcodeWriter.CreateBarcode("data", BarcodeEncoding.QRCode) _
.ToJpegBinaryData()
Cloudmersive 阅读返回了 JSON 响应模型
Cloudmersive的扫描结果是一个响应模型,具有诸如BarcodeType这样的属性。 IronBarcode返回类型化的结果对象:
// Cloudmersive result model
if (cloudmersiveResult.Successful == true)
{
string value = cloudmersiveResult.RawText;
string type = cloudmersiveResult.BarcodeType;
}
// IronBarcode result — use .Value and .Format directly
var results = BarcodeReader.Read("barcode.png");
if (results.Any())
{
string value = results.First().Value;
string format = results.First().Format.ToString();
}
// Cloudmersive result model
if (cloudmersiveResult.Successful == true)
{
string value = cloudmersiveResult.RawText;
string type = cloudmersiveResult.BarcodeType;
}
// IronBarcode result — use .Value and .Format directly
var results = BarcodeReader.Read("barcode.png");
if (results.Any())
{
string value = results.First().Value;
string format = results.First().Format.ToString();
}
' Cloudmersive result model
If cloudmersiveResult.Successful = True Then
Dim value As String = cloudmersiveResult.RawText
Dim type As String = cloudmersiveResult.BarcodeType
End If
' IronBarcode result — use .Value and .Format directly
Dim results = BarcodeReader.Read("barcode.png")
If results.Any() Then
Dim value As String = results.First().Value
Dim format As String = results.First().Format.ToString()
End If
多种 Cloudmersive API 实例类型
Cloudmersive将生成和扫描分隔为BarcodeScanApi实例。 IronBarcode使用静态类,无需实例:
// Cloudmersive — two separate API instances
var generateApi = new GenerateBarcodeApi();
var scanApi = new BarcodeScanApi();
// IronBarcode — static, no instances
// BarcodeWriter for generation
// BarcodeReader for reading
// QRCodeWriter for QR codes specifically
// Cloudmersive — two separate API instances
var generateApi = new GenerateBarcodeApi();
var scanApi = new BarcodeScanApi();
// IronBarcode — static, no instances
// BarcodeWriter for generation
// BarcodeReader for reading
// QRCodeWriter for QR codes specifically
' Cloudmersive — two separate API instances
Dim generateApi As New GenerateBarcodeApi()
Dim scanApi As New BarcodeScanApi()
' IronBarcode — static, no instances
' BarcodeWriter for generation
' BarcodeReader for reading
' QRCodeWriter for QR codes specifically
迁移清单
在迁移前后,请在代码库中运行以下搜索,以验证是否已捕获所有 Cloudmersive 引用:
# Find all Cloudmersive references
grep -r "Cloudmersive" --include="*.cs" .
grep -r "GenerateBarcodeApi" --include="*.cs" .
grep -r "BarcodeScanApi" --include="*.cs" .
grep -r "Configuration.Default.ApiKey" --include="*.cs" .
grep -r '"Apikey"' --include="*.cs" .
grep -r "GenerateBarcodeQRCode" --include="*.cs" .
grep -r "GenerateBarcodeCode128" --include="*.cs" .
grep -r "BarcodeScanImage" --include="*.cs" .
grep -r "cloudmersive" --include="*.csproj" .
grep -r "cloudmersive" --include="*.json" .
# Find all Cloudmersive references
grep -r "Cloudmersive" --include="*.cs" .
grep -r "GenerateBarcodeApi" --include="*.cs" .
grep -r "BarcodeScanApi" --include="*.cs" .
grep -r "Configuration.Default.ApiKey" --include="*.cs" .
grep -r '"Apikey"' --include="*.cs" .
grep -r "GenerateBarcodeQRCode" --include="*.cs" .
grep -r "GenerateBarcodeCode128" --include="*.cs" .
grep -r "BarcodeScanImage" --include="*.cs" .
grep -r "cloudmersive" --include="*.csproj" .
grep -r "cloudmersive" --include="*.json" .
迁移后,所有搜索结果应为零。 然后验证IronBarcode是否已正确引用:
grep -r "IronBarCode" --include="*.cs" .
grep -r "BarcodeReader" --include="*.cs" .
grep -r "BarcodeWriter" --include="*.cs" .
grep -r "IronBarCode" --include="*.cs" .
grep -r "BarcodeReader" --include="*.cs" .
grep -r "BarcodeWriter" --include="*.cs" .
配置清单
- 从所有
Cloudmersive.APIClient.NET.Barcode - 从
appsettings.json、环境变量和秘密存储中删除Cloudmersive API密钥 - 添加IronBarcode NuGet包
- 在应用程序启动时添加
IronBarCode.License.LicenseKey初始化 - 移除 Cloudmersive 调用的重试策略和熔断器
- 移除速率限制跟踪代码
- 移除网络超时配置
测试清单
迁移完成后:
- 验证二维码生成器是否产生有效、可扫描的输出
- 验证 Code128 和其他线性条码的生成
- 验证常见图像格式(PNG、JPEG、BMP)中的条形码读取情况
- 如果您要处理 PDF 文档,请测试 PDF 读取功能
- 如有需要,测试多条形码检测
- 确认网络流量中没有出现 Cloudmersive API 调用
- 确认应用程序在没有网络连接的情况下也能正常运行
迁移后你能获得什么
除了节省成本之外,迁移还消除了一整类运营方面的顾虑:
不再依赖网络进行条形码处理。无论 Cloudmersive 是否可用、您的网络连接质量如何,或者网络延迟出现峰值,您的文档处理流程都能正常运行。
不再需要进行配额管理。月底文档量激增不会导致意外超支或处理失败。
数据不再离开您的网络。包含敏感客户信息、财务信息或健康信息的条形码图像将保留在您的基础设施中。
代码更简洁。生产环境 Cloudmersive 集成所需的重试机制、超时处理和 HTTP 异常管理都已移除。 取而代之的是直接方法调用。
这种迁移是机械性的。 这样做的好处在于结构上——消除了工作流程中对外部网络服务的依赖,而该工作流程原本并不需要外部网络服务。
常见问题解答
我为什么要从 Cloudmersive Barcode API 迁移到 IronBarcode?
常见原因包括简化许可(消除 SDK + 运行时密钥的复杂性)、消除吞吐量限制、获得原生 PDF 支持、改进 Docker/CI/CD 部署以及减少生产代码中的 API 样板代码。
如何用 IronBarcode 替换 Cloudmersive API 调用?
用 `IronBarCode.License.LicenseKey = "key"` 替换实例创建和许可相关的样板代码。用 `BarcodeReader.Read(path)` 替换读取器调用,用 `BarcodeWriter.CreateBarcode(data, encoding)` 替换写入器调用。静态方法无需实例管理。
从 Cloudmersive Barcode API 迁移到 IronBarcode 时,需要修改多少代码?
大多数迁移都能减少代码行数。许可样板代码、实例构造函数和显式格式配置都被移除。核心读/写操作映射到更简洁的 IronBarcode 等效代码,并生成更清晰的结果对象。
迁移过程中是否需要同时保留 Cloudmersive Barcode API 和 IronBarcode?
不。大多数迁移都是直接替换,而不是并行操作。一次迁移一个服务类,替换 NuGet 引用,并更新实例化和 API 调用模式,然后再迁移下一个类。
IronBarcode 的 NuGet 包名称是什么?
该软件包名为“IronBarCode”(B 和 C 大写)。使用“Install-Package IronBarCode”或“dotnet add package IronBarCode”进行安装。代码中的 using 指令为“using IronBarCode;”。
与 Cloudmersive 条形码 API 相比,IronBarcode 如何简化 Docker 部署?
IronBarcode 是一个 NuGet 包,不包含任何外部 SDK 文件或已挂载的许可证配置。在 Docker 环境中,设置 IRONBARCODE_LICENSE_KEY 环境变量后,该包会在启动时自动处理许可证验证。
从 Cloudmersive 迁移后,IronBarcode 是否能自动检测所有条形码格式?
是的。IronBarcode 可以自动检测所有支持格式的条码符号,无需显式枚举 BarcodeTypes。如果已知条码格式且性能至关重要,BarcodeReaderOptions 允许缩小搜索范围以进行优化。
IronBarcode 能否在不使用单独库的情况下读取 PDF 中的条形码?
是的。`BarcodeReader.Read("document.pdf")` 可以直接处理 PDF 文件。结果包括每个条形码的页码、格式、值和置信度。无需外部 PDF 渲染步骤。
IronBarcode如何处理并行条码处理?
IronBarcode 的静态方法是无状态且线程安全的。可以直接对文件列表使用 Parallel.ForEach,无需进行线程级实例管理。BarcodeReaderOptions.MaxParallelThreads 控制内部线程预算。
从 Cloudmersive Barcode API 迁移到 IronBarcode 时,结果属性会发生哪些变化?
常见重命名:BarcodeValue 变为 Value,BarcodeType 变为 Format。IronBarcode 结果还会添加 Confidence 和 PageNumber。解决方案范围内的查找替换功能会处理现有结果处理代码中的重命名。
如何在 CI/CD 流水线中设置 IronBarcode 许可?
将 IRONBARCODE_LICENSE_KEY 存储为管道密钥,并在应用程序启动代码中赋值 IronBarCode.License.LicenseKey。一个密钥即可覆盖所有环境,包括开发、测试、预发布和生产环境。
IronBarcode是否支持生成自定义样式的二维码?
是的。QRCodeWriter.CreateQrCode() 支持通过 ChangeBarCodeColor() 自定义颜色、通过 AddBrandLogo() 嵌入徽标、可配置纠错级别以及多种输出格式,包括 PNG、JPG、PDF 和流媒体。

