Core 6.0 webapi ‘报错InvalidOperationException：无法解析“ Microsoft.AspNetCore.Http.IHttpContextAccessor”类型的服务’

因接口版本升级 并使用core 6.0 却发现HttpContext.Current.Request 用不了  所以在网上找了半天 说是使用Microsoft.AspNetCore.Http.IHttpContextAccessor

 private IHttpContextAccessor _httpContextAccessor;

 public WebHelper(IHttpContextAccessor httpContextAccessor)
 {
     _httpContextAccessor = httpContextAccessor;
 }

 public string GetIpAddress()
 {
     var httpContext = _httpContextAccessor.HttpContext;
     var ip = httpContext.Request.Headers["X-Forwarded-For"].ToString().Split(',')[0].Trim();
     if (string.IsNullOrEmpty(ip))
     {
         ip = httpContext.Connection.RemoteIpAddress.ToString();
     }
     return ip;
 }

上面这个是用的地方  在调用接口的时候却一直报错 本来以为是依赖注入的问题 后查询是使用这个需要在Program注册

var builder = WebApplication.CreateBuilder(args);

//使用IHttpContextAccessor 必须注入
builder.Services.AddHttpContextAccessor();

或者

var builder = WebApplication.CreateBuilder(args);

builder.Services.TryAddSingleton<IHttpContextAccessor, HttpContextAccessor>();