ThingsGateway/framework/ThingsGateway.Admin.Application/System/EventSubscriber/UserEventSubscriber.cs

#region copyright
//------------------------------------------------------------------------------
//  此代码版权声明为全文件覆盖，如有原作者特别声明，会在下方手动补充
//  此代码版权（除特别声明外的代码）归作者本人Diego所有
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//  Gitee源代码仓库：https://gitee.com/diego2098/ThingsGateway
//  Github源代码仓库：https://github.com/kimdiego2098/ThingsGateway
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//------------------------------------------------------------------------------
#endregion

using Furion.DependencyInjection;
using Furion.EventBus;

using Microsoft.Extensions.DependencyInjection;

namespace ThingsGateway.Admin.Application;

/// <summary>
/// 用户模块事件总线
/// </summary>
public class UserEventSubscriber : IEventSubscriber, ISingleton
{
    private readonly IServiceProvider _services;
    /// <summary>
    /// <inheritdoc cref="UserEventSubscriber"/>
    /// </summary>
    /// <param name="services"></param>
    public UserEventSubscriber(IServiceProvider services)
    {
        _services = services;
    }

    /// <summary>
    /// 根据角色ID列表清除用户缓存
    /// </summary>
    /// <param name="context"></param>
    /// <returns></returns>
    [EventSubscribe(EventSubscriberConst.ClearUserCache)]
    public async Task DeleteUserCacheByRoleIds(EventHandlerExecutingContext context)
    {
        var roleIds = (List<long>)context.Source.Payload;//获取角色ID
        // 创建新的作用域
        using var scope = _services.CreateScope();
        // 解析角色服务
        var relationService = scope.ServiceProvider.GetRequiredService<IRelationService>();
        //获取用户和角色关系
        var relations = await relationService.GetRelationListByTargetIdListAndCategoryAsync(roleIds.Select(it => it.ToString()).ToList(), CateGoryConst.Relation_SYS_USER_HAS_ROLE);
        if (relations.Count > 0)
        {
            var userIds = relations.Select(it => it.ObjectId).ToArray();//用户ID列表
            // 解析用户服务
            var userService = scope.ServiceProvider.GetRequiredService<ISysUserService>();
            //从缓存中删除
            userService.DeleteUserFromCache(userIds);
        }
    }
}