通过http上下文判断是否是Ajax请求

判断AJAX请求

最新推荐文章于 2023-07-17 21:07:39 发布

转载最新推荐文章于 2023-07-17 21:07:39 发布 · 309 阅读

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原文链接：http://www.cnblogs.com/tangchun/p/9121334.html

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#测试

本文介绍了一种通过检查HTTP请求头部的X-Requested-With字段来确定请求是否为AJAX请求的方法，并提供了具体的C#实现代码。

using System;

namespace System.Web.Mvc
{
    /// <summary>Represents a class that extends the <see cref="T:System.Web.HttpRequestBase" /> class by adding the ability to determine whether an HTTP request is an AJAX request.</summary>
    public static class AjaxRequestExtensions
    {
        /// <summary>Determines whether the specified HTTP request is an AJAX request.</summary>
        /// <returns>true if the specified HTTP request is an AJAX request; otherwise, false.</returns>
        /// <param name="request">The HTTP request.</param>
        /// <exception cref="T:System.ArgumentNullException">The <paramref name="request" /> parameter is null (Nothing in Visual Basic).</exception>
        public static bool IsAjaxRequest(this HttpRequestBase request)
        {
            if (request == null)
            {
                throw new ArgumentNullException("request");
            }
            return request["X-Requested-With"] == "XMLHttpRequest" || (request.Headers != null && request.Headers["X-Requested-With"] == "XMLHttpRequest");
        }
    }
}