asp.net创建webapi

1、添加一般应用程序，默认名Handler1.ashx，名字自己更改

2、通过HttpContext.Current.Request.QueryString["参数名"]获取参数

string id = HttpContext.Current.Request.QueryString["id"];

3、整体如下

using System;using System.Collections.Generic;using System.Linq;using System.Web;namespace Api_WebForm{    /// <summary>    /// Handler1 的摘要说明    /// </summary>    public class Handler1 : IHttpHandler    {        public void ProcessRequest(HttpContext context)        {            string id = HttpContext.Current.Request.QueryString["id"];            context.Response.ContentType = "text/plain";            context.Response.Write("Hello World");        }        public bool IsReusable        {            get            {                return false;            }        }    }}