0.引言
上一篇博文主要介绍了ABP模块及插件的相关知识，本章节主要开发一个插件示例来学习如何创建一个插件，并在应用程序中使用。这个命名为FirstABPPlugin的插件主要在指定的时间段内删除审计日志。
1.创建插件
(1).新建项目，选择【类库(.NET Core)】
(2).添加引用Abp、Abp.ZeroCore
(3).创建FirstABPPluginModule类，继承AbpModule类和声明依赖于AbpZeroCoreModule
[DependsOn(typeof(AbpZeroCoreModule))] public class FirstABPPluginModule:AbpModule
{ public override void Initialize()
{
IocManager.RegisterAssemblyByConvention(Assembly.GetExecutingAssembly());
} public override void PostInitialize()
{ var workManager = IocManager.Resolve<IBackgroundWorkerManager>();
workManager.Add(IocManager.Resolve(DeleteOldAuditLogsWorker());
}
}(4).添加DeleteOldAuditLogsWorker类
public class DeleteOldAuditLogsWorker : PeriodicBackgroundWorkerBase, ISingletonDependency
{ private readonly IRepository<AuditLog, long> _auditLogRepository; public DeleteOldAuditLogsWorker(AbpTimer timer,IRepository<AuditLog,long> auditLogRepository) : base(timer)
{
_auditLogRepository = auditLogRepository;
Timer.Period = 5000;
}
[UnitOfWork] protected override void DoWork()
{
Logger.Info("---------------- DeleteOldAuditLogsWorker 正在工作 ----------------"); using (CurrentUnitOfWork.DisableFilter(AbpDataFilters.MayHaveTenant))
{ var fiveMinutesAgo = Clock.Now.Subtract(TimeSpan.FromMinutes(5));
_auditLogRepository.Delete(log => log.ExecutionTime > fiveMinutesAgo);
CurrentUnitOfWork.SaveChanges();
}
}
}(5).最终结构如下
(6).生成项目，在bin/Debug/netcoreapp2.1目录下生成FirstABPPlugin.dll
2.添加插件到应用程序
(1).启动ABP项目模版生成的程序，把刚生成的FirstABPPlugin.dll拷贝到wwwroot/Plugins目录下
(2).在Mvc项目的Startup.cs类中，添加如下代码：
public class Startup{ private readonly IConfigurationRoot _appConfiguration; public Startup(IHostingEnvironment env) { _appConfiguration = env.GetAppConfiguration(); } public IServiceProvider ConfigureServices(IServiceCollection services) { ... // Configure Abp and Dependency Injection return services.AddAbp<AbpProjectNameWebMvcModule>( // Configure Log4Net logging options => options.IocManager.IocContainer.AddFacility<LoggingFacility>( f => f.UseAbpLog4Net().WithConfig("log4net.config") ); options.PlugInSources.AddFolder(Path.Combine(_hostingEnvironment.WebRootPath, "Plugins"), SearchOption.AllDirectories); ); } ...} |
(3)运行程序，查看Logs.txt日志记录