ASP.NET Core异常和错误处理（8）_实用技巧-木庄网络博客

本文摘自PHP中文网，作者微波，侵删。

这篇文章主要为大家详细介绍了ASP.NET Core异常和错误处理的相关资料，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

在这一章，我们将讨论异常和错误处理。当 ASP.NET Core应用程序中发生错误时，您可以以各种不同的方式来处理。让我们来看看通过添加一个中间件来处理异常情况，这个中间件将帮助我们处理错误。

要模拟出错，让我们转到应用程序，运行，如果我们只是抛出异常的话，看看程序是如何运转转的。

using Microsoft.AspNet.Builder; 
using Microsoft.AspNet.Hosting; 
using Microsoft.AspNet.Http; 
using Microsoft.Extensions.DependencyInjection; 
using Microsoft.Extensions.Configuration; 
namespace FirstAppDemo { 
 public class Startup { 
  public Startup() { 
   var builder = new ConfigurationBuilder() 
   .AddJsonFile("AppSettings.json"); 
   Configuration = builder.Build(); 
  } 
  public IConfiguration Configuration { get; set; } 
    
  // This method gets called by the runtime. 
  // Use this method to add services to the container. 
  // For more information on how to configure your application, 
  // visit http://go.microsoft.com/fwlink/?LinkID=398940 
  public void ConfigureServices(IServiceCollection services) { 
  } 
   
  // This method gets called by the runtime. 
  // Use this method to configure the HTTP request pipeline.
  public void Configure(IApplicationBuilder app) { 
   app.UseIISPlatformHandler(); 
   app.UseRuntimeInfoPage(); 
    
   app.Run(async (context) => { 
   throw new System.Exception("Throw Exception"); 
   var msg = Configuration["message"]; 
   await context.Response.WriteAsync(msg); 
   }); 
  } 
    
  // Entry point for the application. 
  public static void Main(string[] args) => WebApplication.Run<Startup>(args); 
 } 
}