103 lines
6.0 KiB
C#
103 lines
6.0 KiB
C#
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using Opc.Ua;
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using Opc.Ua.Client;
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using Opc.Ua.Configuration;
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namespace PMSWPF.Helper;
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public static class OpcUaServiceHelper
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{
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/// <summary>
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/// 创建并配置 OPC UA 会话。
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/// </summary>
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/// <param name="endpointUrl">OPC UA 服务器的终结点 URL。</param>
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/// <returns>创建的 Session 对象，如果失败则返回 null。</returns>
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public static async Task<Session> CreateOpcUaSessionAsync(string endpointUrl)
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{
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try
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{
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// 1. 创建应用程序配置
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var application = new ApplicationInstance
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{
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ApplicationName = "OpcUADemoClient",
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ApplicationType = ApplicationType.Client,
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ConfigSectionName = "Opc.Ua.Client"
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};
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var config = new ApplicationConfiguration()
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{
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ApplicationName = application.ApplicationName,
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ApplicationUri = $"urn:{System.Net.Dns.GetHostName()}:OpcUADemoClient",
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ApplicationType = application.ApplicationType,
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SecurityConfiguration = new SecurityConfiguration
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{
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ApplicationCertificate = new CertificateIdentifier
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{
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StoreType = "Directory",
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StorePath
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= "%CommonApplicationData%/OPC Foundation/CertificateStores/MachineDefault",
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SubjectName = application.ApplicationName
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},
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TrustedIssuerCertificates = new CertificateTrustList
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{
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StoreType = "Directory",
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StorePath
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= "%CommonApplicationData%/OPC Foundation/CertificateStores/UA Certificate Authorities"
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},
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TrustedPeerCertificates = new CertificateTrustList
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{
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StoreType = "Directory",
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StorePath
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= "%CommonApplicationData%/OPC Foundation/CertificateStores/UA Applications"
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},
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RejectedCertificateStore = new CertificateTrustList
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{
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StoreType = "Directory",
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StorePath
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= "%CommonApplicationData%/OPC Foundation/CertificateStores/RejectedCertificates"
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},
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AutoAcceptUntrustedCertificates
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= true // 自动接受不受信任的证书 (仅用于测试)
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},
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TransportQuotas = new TransportQuotas { OperationTimeout = 15000 },
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ClientConfiguration = new ClientConfiguration { DefaultSessionTimeout = 60000 },
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TraceConfiguration = new TraceConfiguration
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{
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OutputFilePath = "./Logs/OpcUaClient.log",
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DeleteOnLoad = true,
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TraceMasks = Utils.TraceMasks.Error |
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Utils.TraceMasks.Security
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}
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};
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application.ApplicationConfiguration = config;
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// 验证并检查证书
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await config.Validate(ApplicationType.Client);
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await application.CheckApplicationInstanceCertificate(false, 0);
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// 2. 查找并选择端点 (将 useSecurity 设置为 false 以进行诊断)
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var selectedEndpoint = CoreClientUtils.SelectEndpoint(endpointUrl, false);
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var session = await Session.Create(
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config,
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new ConfiguredEndpoint(null, selectedEndpoint, EndpointConfiguration.Create(config)),
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false,
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"PMSWPF OPC UA Session",
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60000,
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new UserIdentity(new AnonymousIdentityToken()),
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null);
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NotificationHelper.ShowSuccess($"已连接到 OPC UA 服务器: {endpointUrl}");
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return session;
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}
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catch (Exception ex)
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{
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NotificationHelper.ShowError($"连接 OPC UA 服务器失败: {endpointUrl} - {ex.Message}", ex);
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return null;
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}
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}
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}
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