ashx获取请求域名

using System;
using System.Web;

public class MyHandler : IHttpHandler
{
    public void ProcessRequest(HttpContext context)
    {
        // 获取请求的域名
        string host = context.Request.Url.Host;
        string scheme = context.Request.Url.Scheme;

        // 组合成完整的请求URL
        string fullUrl = scheme + "://" + host + context.Request.RawUrl;

        // 输出请求的域名
        context.Response.Write("请求的域名是：" + fullUrl);
    }

    public bool IsReusable
    {
        get { return false; }
    }
}

if (context != null)
{
    string host = context.Request.Url.Host;
    string scheme = context.Request.Url.Scheme;
    string fullUrl = scheme + "://" + host + context.Request.RawUrl;
    context.Response.Write("请求的域名是：" + fullUrl);
}
else
{
    context.Response.Write("HttpContext对象为空");
}

context.Response.AddHeader("Access-Control-Allow-Origin", "*");
context.Response.AddHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS");
context.Response.AddHeader("Access-Control-Allow-Headers", "Content-Type, Authorization");