浅谈ASP.NET Core静态文件处理源码探究

//wwwroot目录访问展示默认文件 app.UseDefaultFiles(); //或自定义目录默认展示文件 var fileProvider = new PhysicalFileProvider($"{env.ContentRootPath}/staticfiles"); app.UseDefaultFiles(new DefaultFilesOptions { RequestPath = "/staticfiles", FileProvider = fileProvider });

老规矩，我们查看下注册UseDefaultFiles的源码[点击查看DefaultFilesExtensions源码]

public static class DefaultFilesExtensions { public static IApplicationBuilder UseDefaultFiles(this IApplicationBuilder app) { return app.UseMiddleware<DefaultFilesMiddleware>(); } public static IApplicationBuilder UseDefaultFiles(this IApplicationBuilder app, string requestPath) { return app.UseDefaultFiles(new DefaultFilesOptions { RequestPath = new PathString(requestPath) }); } public static IApplicationBuilder UseDefaultFiles(this IApplicationBuilder app, DefaultFilesOptions options) { return app.UseMiddleware<DefaultFilesMiddleware>(Options.Create(options)); } }

使用方式和UseStaticFiles、UseDirectoryBrowser是一样,最终都是调用传递DefaultFilesOptions的方法，我们查看一下DefaultFilesOptions的大致实现[点击查看源码]

public class DefaultFilesOptions : SharedOptionsBase { public DefaultFilesOptions() : this(new SharedOptions()) { } public DefaultFilesOptions(SharedOptions sharedOptions) : base(sharedOptions) { //系统提供的默认页面的名称 DefaultFileNames = new List<string> { "default.htm", "default.html", "index.htm", "index.html", }; } /// <summary> /// 通过这个属性可以配置默认文件名称 /// </summary> public IList<string> DefaultFileNames { get; set; } }

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