在 Web.co/nfig 中设置许可证密钥
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此问题已在 IronOCR 2024.3.4 版本中得到解决。
Exception: Unhandled exception. IronSoftware.Exceptions.LicensingException: IronOCR must be licensed for development.
对于较旧的 IronOCR 版本(特别是 2023.4.13 至 2024.3.4 之间的版本),存在已知的许可问题:
- ASP.NET 项目
- .NET Framework 版本 >= 4.6.2
存储在 Web.co/nfig 文件中的密钥将不会被产品读取和使用。
解决方法
为解决此问题,建议在代码中使用 ConfigurationManager 从 Web.co/nfig 文件中获取许可证密钥,然后将其应用到 License.LicenseKey 属性上。
示例:
<configuration>
...
<appSettings>
<add key="IronOcr.LicenseKey" value="IRONOCR-MYLICENSE-KEY-1EF01"/>
</appSettings>
...
</configuration>
<configuration>
...
<appSettings>
<add key="IronOcr.LicenseKey" value="IRONOCR-MYLICENSE-KEY-1EF01"/>
</appSettings>
...
</configuration>
XML
利用上文提供的 XML 文件,我们可以使用 ConfigurationManager 检索许可证密钥值,并将其传递给 IronOcr.License.LicenseKey 属性。
using System.Co/nfiguration;
// Retrieve the license key from the Web.co/nfig's appSettings
string licenseKey = ConfigurationManager.AppSettings["IronOcr.LicenseKey"];
// Apply the license key to IronOcr to avoid licensing exceptions
IronOcr.License.LicenseKey = licenseKey;
using System.Co/nfiguration;
// Retrieve the license key from the Web.co/nfig's appSettings
string licenseKey = ConfigurationManager.AppSettings["IronOcr.LicenseKey"];
// Apply the license key to IronOcr to avoid licensing exceptions
IronOcr.License.LicenseKey = licenseKey;
Imports System.Configuration
' Retrieve the license key from the Web.config's appSettings
Dim licenseKey As String = ConfigurationManager.AppSettings("IronOcr.LicenseKey")
' Apply the license key to IronOcr to avoid licensing exceptions
IronOcr.License.LicenseKey = licenseKey
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