asp.net 通过IHttpModule开发接口

最新推荐文章于 2023-06-25 15:58:53 发布

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博客介绍了在ASP.NET中实现IHttpModule接口处理AcquireRequestState事件的方法。先创建空项目并添加名为MyModule1.cs的ASP.NET模块，添加Context_AcquireRequestState方法，在web.config中增加节点，还给出了访问接口及返回数据相关信息。

实现IHttpModule接口，处理AcquireRequestState事件

1、创建asp.net空项目，添加asp.net module，命名为MyModule1.cs

2、添加Context_AcquireRequestState方法

using Newtonsoft.Json;
using System;
using System.Web;

namespace WebApplication1
{
    public class MyModule1 : IHttpModule
    {
        /// <summary>
        /// You will need to configure this module in the Web.config file of your
        /// web and register it with IIS before being able to use it. For more information
        /// see the following link: https://go.microsoft.com/?linkid=8101007
        /// </summary>
        #region IHttpModule Members

        public void Dispose()
        {
            //clean-up code here.
        }

        public void Init(HttpApplication context)
        {
            // Below is an example of how you can handle LogRequest event and provide 
            // custom logging implementation for it
            context.LogRequest += new EventHandler(OnLogRequest);
            context.AcquireRequestState += Context_AcquireRequestState;
        }

        private void Context_AcquireRequestState(object sender, EventArgs e)
        {
            var context = sender as HttpApplication;
            var info = new
            {
                name = "xiaowang",
                age = 21,
                sex = "男"
            };
            var path = context.Request.Path;
            if ("/queryInfo3".Equals(path))
            {
                // 防止调用两次
                context.CompleteRequest();
                context.Response.ContentType = "application/json";
                context.Response.Write(JsonConvert.SerializeObject(info));
                context.Response.Flush();
            }
        }

        #endregion

        public void OnLogRequest(Object source, EventArgs e)
        {
            //custom logging logic can go here
        }
    }
}

4、在web.config中增加如下节点

<?xml version="1.0"?>
<configuration>
  <system.webServer>
    <modules>
      <add type="WebApplication1.MyModule1" name="/queryInfo3"/>
    </modules>
  </system.webServer>
</configuration>

访问接口：
http://localhost:64683/queryInfo3
返回数据：

{"name":"xiaowang","age":21,"sex":"男"}