问题：用Net8创建WebAPI时勾选启动OpenAPI，项目自动集成了Swagger，但是接口注释没有展示？

解决：

1.需要生成Api项目的XML文件。操作如下：

2.生成XML文件后，还需要在启动类Program.cs里面配置SwaggerUI的文件映射配置；代码如下：

// 配置swagger的注释xml
builder.Services.AddSwaggerGen(c =>
{
    var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
    var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);
    c.IncludeXmlComments(xmlPath);

});

整体的Program.cs代码如下:

using AnNeng.Service.Application.Test;
using System.Reflection;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.

builder.Services.AddControllers();
// Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();
builder.Services.AddSingleton<ITestService, TestService>();  // 依赖注入配置


// 配置swagger的注释xml
builder.Services.AddSwaggerGen(c =>
{
    var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
    var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);
    c.IncludeXmlComments(xmlPath);

});


var app = builder.Build();

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

app.UseAuthorization();

app.MapControllers();

app.Run();

3.问题解决，效果如下