net Core 创建第一个net core项目
1.创建空Core项目
利用vs2022 创建一个空的Core项目
下一步,添加工程名称和选择路径。即可
Startup.cs的解释
public class Startup { //配置容器服务 public void ConfigureServices(IServiceCollection services) { } // 配置HTTP请求处理管道当中一些配置 public void Configure(IApplicationBuilder app, IWebHostEnvironment env) { if (env.IsDevelopment()) { app.UseDeveloperExceptionPage(); } app.UseRouting(); app.UseEndpoints(endpoints => { endpoints.MapGet("/", async context => { await context.Response.WriteAsync("Hello World!"); }); }); } }
Program.cs的解释
public class Program { //主启动 public static void Main(string[] args) { //对CreateHostBuilder(args).Build().Run();的分布解释 //内部,会配置kestrel服务器,IIS相关,其他配置。 IHostBuilder builder = Host.CreateDefaultBuilder(args); builder.ConfigureWebHostDefaults(webBuilder => { webBuilder.UseStartup<Startup>(); }); IHost webHost = builder.Build(); webHost.Run(); //CreateHostBuilder(args).Build().Run(); } public static IHostBuilder CreateHostBuilder(string[] args) => Host.CreateDefaultBuilder(args) .ConfigureWebHostDefaults(webBuilder => { webBuilder.UseStartup<Startup>(); }); }
2.启动