MyExceptionFilter 异常注入

最新推荐文章于 2020-09-24 20:29:55 发布

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最新推荐文章于 2020-09-24 20:29:55 发布

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原文链接：http://www.cnblogs.com/qq605490312/p/7823816.html

本文介绍了一个自定义异常过滤器的实现方法，通过注入日志服务来捕获并记录异常信息。此外还展示了如何在.NET Core环境中配置此过滤器，并通过依赖注入使其在整个应用程序中可用。

  public class MyExceptionFilter : IExceptionFilter
    {
        private ILogService logService;
        public MyExceptionFilter(ILogService logService)
        {
            this.logService = logService;
        }

        public void OnException(ExceptionContext context)
        {
            logService.AddLog(context.Exception.Message);
        }
    }

 public void ConfigureServices(IServiceCollection services)
        {

            services.AddSingleton(typeof(MyExceptionFilter));
            // services.AddMvc();
            services.AddMvc(options =>
           {
               var serviceProvider = services.BuildServiceProvider();
               var filter= serviceProvider.GetService<MyExceptionFilter>();
               options.Filters.Add(filter);
           });

            Assembly asm = Assembly.Load(new AssemblyName("IOC.Services"));
            var serivesTypes = asm.GetTypes().Where(t => typeof(IServiceSupport).IsAssignableFrom(t)
            && !t.GetTypeInfo().IsAbstract);
            foreach (var sericeType in serivesTypes)
            {
                foreach (var intfType in sericeType.GetInterfaces())
                {
                    services.AddSingleton(intfType, sericeType);
                }
            }
        }