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修复了添加设备OpcUa服务器地址为空的问题，修复了Opc后台服务退出的问题

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This commit is contained in:
David P.G
2025-07-10 21:24:20 +08:00
parent d1b99188d5
commit 1f4772ef3f
2 changed files with 142 additions and 86 deletions
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225
Services/OpcUaBackgroundService.cs
View File

@@ -59,14 +59,23 @@ namespace PMSWPF.Services
{
private CancellationTokenSource _cancellationTokenSource;
private Task _executingTask;
private readonly DataServices _dataServices;
// 存储 OPC UA 会话，键为终结点 URL，值为会话对象。
private readonly Dictionary<string, Session> _opcUaSessions;
// 存储 OPC UA 订阅，键为终结点 URL，值为订阅对象。
private readonly Dictionary<string, Subscription> _opcUaSubscriptions;
// 存储活动的 OPC UA 变量，键为变量的唯一 ID。
private readonly Dictionary<int, VariableData> _opcUaVariables; // Key: VariableData.Id
private readonly Dictionary<int, CancellationTokenSource> _opcUaPollingTasks; // Key: VariableData.Id, Value: CancellationTokenSource for polling task
private readonly Dictionary<int, CancellationTokenSource>
_opcUaPollingTasks; // Key: VariableData.Id, Value: CancellationTokenSource for polling task
private List<Device> _opcUaDevices;
private List<VariableData> _opcUaAllVariableDatas;
/// <summary>
/// OpcUaBackgroundService 的构造函数。
@@ -79,6 +88,7 @@ namespace PMSWPF.Services
_opcUaSubscriptions = new Dictionary<string, Subscription>();
_opcUaVariables = new Dictionary<int, VariableData>();
_opcUaPollingTasks = new Dictionary<int, CancellationTokenSource>();
_opcUaAllVariableDatas = new List<VariableData>();
}
/// <summary>
@@ -104,10 +114,7 @@ namespace PMSWPF.Services
try
{
_cancellationTokenSource.Cancel();
NlogHelper.Info("OpcUaBackgroundService stopping.");
// 服务停止时，取消订阅事件并断开所有 OPC UA 连接。
_dataServices.OnVariableDataChanged -= HandleVariableDataChanged;
await DisconnectAllOpcUaSessions();
}
finally
{
@@ -131,8 +138,10 @@ namespace PMSWPF.Services
// // 可以在这里添加周期性任务，例如检查和重新连接断开的会话。
// await Task.Delay(TimeSpan.FromSeconds(10), stoppingToken);
// }
NlogHelper.Info("OpcUaBackgroundService stopping.");
// 服务停止时，取消订阅事件并断开所有 OPC UA 连接。
_dataServices.OnVariableDataChanged -= HandleVariableDataChanged;
await DisconnectAllOpcUaSessions();
}
/// <summary>
@@ -142,16 +151,33 @@ namespace PMSWPF.Services
{
NlogHelper.Info("正在加载 OPC UA 变量...");
// var allVariables = await _dataServices.GetAllVariableDataAsync();
var opcUaVariables = _dataServices.VariableDatas.Where(v => v.ProtocolType == ProtocolType.OpcUA && v.IsActive).ToList();
if (opcUaVariables==null || opcUaVariables.Count==0)
_opcUaDevices = _dataServices.Devices.Where(d => d.ProtocolType == ProtocolType.OpcUA && d.IsActive == true)
.ToList();
if (_opcUaDevices.Count == 0)
return;
foreach (Device device in _opcUaDevices)
{
var deviceVarData = device.VariableTables
.Where(vt => vt.IsActive == true && vt.ProtocolType == ProtocolType.OpcUA)
.SelectMany(vt => vt.DataVariables)
.Where(vd => vd.IsActive == true)
.ToList();
_opcUaAllVariableDatas.AddRange(deviceVarData);
}
// var opcUaVariables = _dataServices
// .VariableDatas.Where(v => v.ProtocolType == ProtocolType.OpcUA && v.IsActive)
// .ToList();
if (_opcUaAllVariableDatas == null || _opcUaAllVariableDatas.Count == 0)
return;
// 清理不再活跃或已删除的变量。
await RemoveInactiveOpcUaVariables(opcUaVariables);
await RemoveInactiveOpcUaVariables(_opcUaAllVariableDatas);
// 处理新增或更新的变量。
await ProcessActiveOpcUaVariables(opcUaVariables);
await ProcessActiveOpcUaVariables(_opcUaAllVariableDatas);
}
/// <summary>
@@ -193,7 +219,8 @@ namespace PMSWPF.Services
}
}
private async Task PollOpcUaVariable(Session session, VariableData variable, Device device, CancellationToken cancellationToken)
private async Task PollOpcUaVariable(Session session, VariableData variable, Device device,
CancellationToken cancellationToken)
{
while (!cancellationToken.IsCancellationRequested)
{
@@ -202,10 +229,10 @@ namespace PMSWPF.Services
if (session != null && session.Connected)
{
var nodeToRead = new ReadValueId
{
NodeId = new NodeId(variable.OpcUaNodeId),
AttributeId = Attributes.Value
};
{
NodeId = new NodeId(variable.OpcUaNodeId),
AttributeId = Attributes.Value
};
var nodesToRead = new ReadValueIdCollection { nodeToRead };
session.Read(
@@ -221,7 +248,8 @@ namespace PMSWPF.Services
var value = results[0];
if (StatusCode.IsGood(value.StatusCode))
{
NlogHelper.Info($"[OPC UA 轮询] {variable.Name}: {value.Value} | 时间戳: {value.SourceTimestamp.ToLocalTime()} | 状态: {value.StatusCode}");
NlogHelper.Info(
$"[OPC UA 轮询] {variable.Name}: {value.Value} | 时间戳: {value.SourceTimestamp.ToLocalTime()} | 状态: {value.StatusCode}");
// 更新变量数据
variable.DataValue = value.Value.ToString();
variable.DisplayValue = value.Value.ToString(); // 或者根据需要进行格式化
@@ -229,13 +257,15 @@ namespace PMSWPF.Services
}
else
{
NlogHelper.Warn($"Failed to read OPC UA variable {variable.Name} ({variable.OpcUaNodeId}): {value.StatusCode}");
NlogHelper.Warn(
$"Failed to read OPC UA variable {variable.Name} ({variable.OpcUaNodeId}): {value.StatusCode}");
}
}
}
else
{
NlogHelper.Warn($"OPC UA session for {device.OpcUaEndpointUrl} is not connected. Attempting to reconnect...");
NlogHelper.Warn(
$"OPC UA session for {device.OpcUaEndpointUrl} is not connected. Attempting to reconnect...");
// 尝试重新连接会话
await ConnectAndSubscribeOpcUa(variable, device);
}
@@ -249,6 +279,7 @@ namespace PMSWPF.Services
var pollInterval = GetPollInterval(variable.PollLevelType);
await Task.Delay(pollInterval, cancellationToken);
}
NlogHelper.Info($"Polling for OPC UA variable {variable.Name} stopped.");
}
@@ -256,8 +287,10 @@ namespace PMSWPF.Services
{
foreach (var value in monitoredItem.DequeueValues())
{
NlogHelper.Info($"[OPC UA 通知] {monitoredItem.DisplayName}: {value.Value} | 时间戳: {value.SourceTimestamp.ToLocalTime()} | 状态: {value.StatusCode}");
Console.WriteLine($"[通知] {monitoredItem.DisplayName}: {value.Value} | 时间戳: {value.SourceTimestamp.ToLocalTime()} | 状态: {value.StatusCode}");
NlogHelper.Info(
$"[OPC UA 通知] {monitoredItem.DisplayName}: {value.Value} | 时间戳: {value.SourceTimestamp.ToLocalTime()} | 状态: {value.StatusCode}");
Console.WriteLine(
$"[通知] {monitoredItem.DisplayName}: {value.Value} | 时间戳: {value.SourceTimestamp.ToLocalTime()} | 状态: {value.StatusCode}");
}
}
@@ -269,18 +302,18 @@ namespace PMSWPF.Services
private TimeSpan GetPollInterval(PollLevelType pollLevelType)
{
return pollLevelType switch
{
PollLevelType.OneSecond => TimeSpan.FromSeconds(1),
PollLevelType.FiveSeconds => TimeSpan.FromSeconds(5),
PollLevelType.TenSeconds => TimeSpan.FromSeconds(10),
PollLevelType.ThirtySeconds => TimeSpan.FromSeconds(30),
PollLevelType.OneMinute => TimeSpan.FromMinutes(1),
PollLevelType.FiveMinutes => TimeSpan.FromMinutes(5),
PollLevelType.TenMinutes => TimeSpan.FromMinutes(10),
PollLevelType.ThirtyMinutes => TimeSpan.FromMinutes(30),
PollLevelType.OneHour => TimeSpan.FromHours(1),
_ => TimeSpan.FromSeconds(1), // 默认1秒
};
{
PollLevelType.OneSecond => TimeSpan.FromSeconds(1),
PollLevelType.FiveSeconds => TimeSpan.FromSeconds(5),
PollLevelType.TenSeconds => TimeSpan.FromSeconds(10),
PollLevelType.ThirtySeconds => TimeSpan.FromSeconds(30),
PollLevelType.OneMinute => TimeSpan.FromMinutes(1),
PollLevelType.FiveMinutes => TimeSpan.FromMinutes(5),
PollLevelType.TenMinutes => TimeSpan.FromMinutes(10),
PollLevelType.ThirtyMinutes => TimeSpan.FromMinutes(30),
PollLevelType.OneHour => TimeSpan.FromHours(1),
_ => TimeSpan.FromSeconds(1), // 默认1秒
};
}
/// <summary>
@@ -300,7 +333,17 @@ namespace PMSWPF.Services
}
// 取消与此会话相关的轮询任务
var variablesToCancelPolling = _opcUaVariables.Where(kv => kv.Value.VariableTable != null && kv.Value.VariableTable.DeviceId.HasValue && _dataServices.GetDeviceByIdAsync(kv.Value.VariableTable.DeviceId.Value).Result?.OpcUaEndpointUrl == endpointUrl && kv.Value.OpcUaUpdateType == OpcUaUpdateType.OpcUaPoll).ToList();
var variablesToCancelPolling = _opcUaVariables.Where(kv => kv.Value.VariableTable != null &&
kv.Value.VariableTable.DeviceId.HasValue &&
_dataServices
.GetDeviceByIdAsync(
kv.Value.VariableTable.DeviceId
.Value)
.Result?.OpcUaEndpointUrl ==
endpointUrl &&
kv.Value.OpcUaUpdateType ==
OpcUaUpdateType.OpcUaPoll)
.ToList();
foreach (var entry in variablesToCancelPolling)
{
if (_opcUaPollingTasks.ContainsKey(entry.Key))
@@ -339,7 +382,7 @@ namespace PMSWPF.Services
/// </summary>
/// <param name="sender">事件发送者。</param>
/// <param name="variableDatas">变化的变量数据列表。</param>
private async void HandleVariableDataChanged( List<VariableData> variableDatas)
private async void HandleVariableDataChanged(List<VariableData> variableDatas)
{
NlogHelper.Info("Variable data changed. Reloading OPC UA variables.");
await LoadOpcUaVariables();
@@ -356,50 +399,57 @@ namespace PMSWPF.Services
{
// 1. 创建应用程序配置
var application = new ApplicationInstance
{
ApplicationName = "OpcUADemoClient",
ApplicationType = ApplicationType.Client,
ConfigSectionName = "Opc.Ua.Client"
};
{
ApplicationName = "OpcUADemoClient",
ApplicationType = ApplicationType.Client,
ConfigSectionName = "Opc.Ua.Client"
};
var config = new ApplicationConfiguration()
{
ApplicationName = application.ApplicationName,
ApplicationUri = $"urn:{System.Net.Dns.GetHostName()}:OpcUADemoClient",
ApplicationType = application.ApplicationType,
SecurityConfiguration = new SecurityConfiguration
{
ApplicationCertificate = new CertificateIdentifier
{
StoreType = "Directory",
StorePath = "%CommonApplicationData%/OPC Foundation/CertificateStores/MachineDefault",
SubjectName = application.ApplicationName
},
TrustedIssuerCertificates = new CertificateTrustList
{
StoreType = "Directory",
StorePath = "%CommonApplicationData%/OPC Foundation/CertificateStores/UA Certificate Authorities"
},
TrustedPeerCertificates = new CertificateTrustList
{
StoreType = "Directory",
StorePath = "%CommonApplicationData%/OPC Foundation/CertificateStores/UA Applications"
},
RejectedCertificateStore = new CertificateTrustList
{
StoreType = "Directory",
StorePath = "%CommonApplicationData%/OPC Foundation/CertificateStores/RejectedCertificates"
},
AutoAcceptUntrustedCertificates = true // 自动接受不受信任的证书 (仅用于测试)
},
TransportQuotas = new TransportQuotas { OperationTimeout = 15000 },
ClientConfiguration = new ClientConfiguration { DefaultSessionTimeout = 60000 },
TraceConfiguration = new TraceConfiguration
{
OutputFilePath = "./Logs/OpcUaClient.log", DeleteOnLoad = true,
TraceMasks = Utils.TraceMasks.Error | Utils.TraceMasks.Security
}
};
{
ApplicationName = application.ApplicationName,
ApplicationUri = $"urn:{System.Net.Dns.GetHostName()}:OpcUADemoClient",
ApplicationType = application.ApplicationType,
SecurityConfiguration = new SecurityConfiguration
{
ApplicationCertificate = new CertificateIdentifier
{
StoreType = "Directory",
StorePath
= "%CommonApplicationData%/OPC Foundation/CertificateStores/MachineDefault",
SubjectName = application.ApplicationName
},
TrustedIssuerCertificates = new CertificateTrustList
{
StoreType = "Directory",
StorePath
= "%CommonApplicationData%/OPC Foundation/CertificateStores/UA Certificate Authorities"
},
TrustedPeerCertificates = new CertificateTrustList
{
StoreType = "Directory",
StorePath
= "%CommonApplicationData%/OPC Foundation/CertificateStores/UA Applications"
},
RejectedCertificateStore = new CertificateTrustList
{
StoreType = "Directory",
StorePath
= "%CommonApplicationData%/OPC Foundation/CertificateStores/RejectedCertificates"
},
AutoAcceptUntrustedCertificates
= true // 自动接受不受信任的证书 (仅用于测试)
},
TransportQuotas = new TransportQuotas { OperationTimeout = 15000 },
ClientConfiguration = new ClientConfiguration { DefaultSessionTimeout = 60000 },
TraceConfiguration = new TraceConfiguration
{
OutputFilePath = "./Logs/OpcUaClient.log",
DeleteOnLoad = true,
TraceMasks = Utils.TraceMasks.Error |
Utils.TraceMasks.Security
}
};
application.ApplicationConfiguration = config;
// 验证并检查证书
@@ -477,9 +527,8 @@ namespace PMSWPF.Services
{
if (!_opcUaPollingTasks.ContainsKey(variable.Id))
{
var cts = new CancellationTokenSource();
_opcUaPollingTasks.Add(variable.Id, cts);
_ = Task.Run(() => PollOpcUaVariable(session, variable, device, cts.Token), cts.Token);
_opcUaPollingTasks.Add(variable.Id, _cancellationTokenSource);
_ = Task.Run(() => PollOpcUaVariable(session, variable, device,_cancellationTokenSource.Token), _cancellationTokenSource.Token);
NlogHelper.Info($"Started polling for OPC UA variable: {variable.Name} ({variable.OpcUaNodeId})");
}
}
@@ -490,8 +539,10 @@ namespace PMSWPF.Services
/// <param name="activeOpcUaVariables">当前所有活跃的 OPC UA 变量列表。</param>
private async Task RemoveInactiveOpcUaVariables(List<VariableData> activeOpcUaVariables)
{
var currentOpcUaVariableIds = activeOpcUaVariables.Select(v => v.Id).ToHashSet();
var variablesToRemove = _opcUaVariables.Keys.Except(currentOpcUaVariableIds).ToList();
var currentOpcUaVariableIds = activeOpcUaVariables.Select(v => v.Id)
.ToHashSet();
var variablesToRemove = _opcUaVariables.Keys.Except(currentOpcUaVariableIds)
.ToList();
NlogHelper.Info($"发现 {variablesToRemove.Count} 个要移除的 OPC UA 变量。");
@@ -502,7 +553,7 @@ namespace PMSWPF.Services
if (variable.OpcUaUpdateType == OpcUaUpdateType.OpcUaSubscription)
{
// 获取关联的设备信息
var device = await _dataServices.GetDeviceByIdAsync(variable.VariableTable.DeviceId??0);
var device = await _dataServices.GetDeviceByIdAsync(variable.VariableTable.DeviceId ?? 0);
if (device != null)
{
// 断开与该变量相关的 OPC UA 会话。
@@ -519,6 +570,7 @@ namespace PMSWPF.Services
cts.Dispose();
}
}
_opcUaVariables.Remove(id);
}
}
@@ -533,7 +585,7 @@ namespace PMSWPF.Services
foreach (var variable in opcUaVariables)
{
// 获取关联的设备信息
var device = await _dataServices.GetDeviceByIdAsync(variable.VariableTable.DeviceId??0);
var device = await _dataServices.GetDeviceByIdAsync(variable.VariableTable.DeviceId ?? 0);
if (device == null)
{
NlogHelper.Warn($"变量 '{variable.Name}' (ID: {variable.Id}) 关联的设备不存在。");
@@ -551,7 +603,8 @@ namespace PMSWPF.Services
// 如果变量已存在，则更新其信息。
_opcUaVariables[variable.Id] = variable;
// 如果终结点 URL 对应的会话已断开，则尝试重新连接。
if (_opcUaSessions.ContainsKey(device.OpcUaEndpointUrl) && !_opcUaSessions[device.OpcUaEndpointUrl].Connected)
if (_opcUaSessions.ContainsKey(device.OpcUaEndpointUrl) &&
!_opcUaSessions[device.OpcUaEndpointUrl].Connected)
{
await ConnectAndSubscribeOpcUa(variable, device);
}

3
ViewModels/DevicesViewModel.cs
View File

@@ -76,6 +76,9 @@ public partial class DevicesViewModel : ViewModelBase
return;
}
if (device.ProtocolType == ProtocolType.OpcUA)
device.OpcUaEndpointUrl = $"opc.tcp://{device.Ip}:{device.Prot}";
await _deviceRepository.Add(device);
}
catch (Exception e)