C# .Net6搭建灵活的RestApi服务器

本文介绍: C# .Net6后支持顶级语句，更简单的RestApi服务支持，可以快速搭建一个极为简洁的Web系统。推荐使用Visual Studio 2022，安装”ASP.NET 和Web开发”组件。

C# .Net6后支持顶级语句，更简单的RestApi服务支持，可以快速搭建一个极为简洁的Web系统。推荐使用Visual Studio 2022，安装”ASP.NET 和Web开发”组件。

关键步骤如下：


using Newtonsoft.Json;
using System.Runtime.CompilerServices;
using System.Text;

int bodySize = 8192;
Encoder encoder = Encoding.UTF8.GetEncoder();

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

var app = builder.Build();

// Configure the HTTP request pipeline.
if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseHttpsRedirection();

app.MapGet("/{*myUrl}", (HttpRequest request,string myUrl) => {
    return HttpRequestParse(request, myUrl);
});
app.MapPost("/{*myUrl}", (HttpRequest request, string myUrl) => {
    return HttpRequestParse(request, myUrl);
});

string HttpRequestParse(HttpRequest request, string myUrl)
{
    string body = "";
    using (var reader = new StreamReader(request.Body))
    {
        Task<string> t = reader.ReadToEndAsync();
        t.Wait();
        body = t.Result;
    }
    string msg = $"{myUrl} {request.Method} {request.Scheme} {request.Path} {request.QueryString} {body}";
    Console.WriteLine(msg);
    return msg;
}

app.Run();

{
    "Logging": {
        "LogLevel": {
            "Default": "Information",
            "Microsoft.AspNetCore": "Warning"
        }
    },
    "AllowedHosts": "*",
    "Kestrel": {
        "Endpoints": {
            "Http": {
                "Url": "http://*:9000"
            }
        }
    }
}

appsettings.{Environment}.json 值替代 appsettings.json 中的键。例如，默认情况下：

使用默认配置时，会通过 reloadOnChange: true 启用 appsettings.json 和 appsettings.{Environment}.json 文件。应用启动后，对 appsettings.json 和 appsettings.{Environment}.json 文件所做的更改将由 JSON 配置提供程序读取。