更新项目配置，新增设备同步模块，优化WebSocket和Swagger配置，增强SCADA系统的免登录接口，支持数据字典项和登录日志的免登录查询与记录。调整Java编译设置，确保更好的开发体验。
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172
yy-admin-master/YY.Admin/ViewModels/DashboardViewModel.cs
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172
yy-admin-master/YY.Admin/ViewModels/DashboardViewModel.cs
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using LiveChartsCore;
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using LiveChartsCore.Drawing;
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using LiveChartsCore.Kernel;
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using System.Collections.ObjectModel;
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using System.Windows.Input;
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using YY.Admin.Core;
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using YY.Admin.Services.Service.User;
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namespace YY.Admin.ViewModels
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{
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public class StatisticCard
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{
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public string Title { get; set; } = string.Empty;
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public string Value { get; set; } = string.Empty;
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public string Icon { get; set; } = string.Empty;
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public string Color { get; set; } = string.Empty;
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public string Trend { get; set; } = string.Empty;
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}
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public class RecentActivity
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{
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public string Title { get; set; } = string.Empty;
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public string Description { get; set; } = string.Empty;
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public DateTime Time { get; set; }
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public string Icon { get; set; } = string.Empty;
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}
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public class DashboardViewModel : BaseViewModel
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{
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private readonly ISysUserService _userService;
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public float[] Values1 { get; set; } = FetchVales(0);
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public float[] Values2 { get; set; } = FetchVales(-0.15f);
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public ICommand PointMeasuredCommand { get; }
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public DashboardViewModel(
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ISysUserService userService,
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IContainerExtension _container,
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IRegionManager regionManager
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) : base(_container, regionManager)
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{
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// _eventAggregator.GetEvent<ThemeChangedEvent>().Subscribe(ApplyTheme);
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_userService = userService;
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PointMeasuredCommand = new DelegateCommand<ChartPoint>(OnPointMeasured);
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_ = LoadDashboardDataAsync();
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}
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public ObservableCollection<StatisticCard> StatisticCards { get; } = new();
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public ObservableCollection<RecentActivity> RecentActivities { get; } = new();
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private async Task LoadDashboardDataAsync()
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{
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IsLoading = true;
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try
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{
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// 加载统计数据
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var users = await _userService.GetUsersAsync();
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StatisticCards.Clear();
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StatisticCards.Add(new StatisticCard
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{
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Title = "总用户数",
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Value = users.Count.ToString(),
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Icon = "UserOutlined",
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Color = "#1890ff",
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Trend = "+12%"
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});
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StatisticCards.Add(new StatisticCard
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{
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Title = "活跃用户",
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Value = users.Count(u => u.Status== StatusEnum.Enable).ToString(),
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Icon = "UserCheckOutlined",
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Color = "#52c41a",
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Trend = "+8%"
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});
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StatisticCards.Add(new StatisticCard
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{
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Title = "今日访问",
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Value = "1,234",
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Icon = "EyeOutlined",
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Color = "#faad14",
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Trend = "+5%"
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});
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StatisticCards.Add(new StatisticCard
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{
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Title = "系统消息",
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Value = "56",
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Icon = "MessageOutlined",
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Color = "#f5222d",
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Trend = "+2"
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});
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// 加载最近活动
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RecentActivities.Clear();
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RecentActivities.Add(new RecentActivity
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{
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Title = "用户登录",
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Description = "管理员 admin 登录系统",
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Time = DateTime.Now.AddMinutes(-5),
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Icon = "LoginOutlined"
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});
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RecentActivities.Add(new RecentActivity
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{
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Title = "数据更新",
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Description = "用户数据已同步更新",
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Time = DateTime.Now.AddMinutes(-15),
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Icon = "SyncOutlined"
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});
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RecentActivities.Add(new RecentActivity
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{
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Title = "系统备份",
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Description = "数据库备份已完成",
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Time = DateTime.Now.AddHours(-2),
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Icon = "DatabaseOutlined"
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});
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}
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finally
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{
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IsLoading = false;
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}
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}
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private static float[] FetchVales(float offset)
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{
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var values = new List<float>();
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// the EasingFunctions.BounceInOut, is just
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// a function that looks nice!
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var fx = EasingFunctions.BounceInOut;
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var x = 0f;
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while (x <= 1)
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{
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values.Add(fx(x + offset));
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x += 0.025f;
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}
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return [.. values];
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}
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private void OnPointMeasured(ChartPoint point)
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{
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// each point will have a different delay depending on its index
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var index = point.Context.Entity.MetaData!.EntityIndex; // the index of the point in the data source
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var delay = index / (float)Values1.Length;
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// the animation takes a function, that represents the normalized progress of the animation
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// the parameter is the normalized time of the animation, it goes from 0 to 1
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// the function must return a value from 0 to 1, where 0 is the initial state
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// and 1 is the final state
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var duration = TimeSpan.FromSeconds(3);
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var animation = new Animation(t => DelayedEase(t, delay), duration);
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point.Context.Visual?.SetTransition(animation);
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}
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private static float DelayedEase(float t, float delay)
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{
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if (t <= delay) return 0f;
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var remappedT = (t - delay) / (1f - delay);
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var baseEasing = EasingFunctions.BuildCustomElasticOut(1.5f, 0.60f);
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return baseEasing(Math.Clamp(remappedT, 0f, 1f));
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}
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}
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}
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