跨域獲取後臺日期-ASP

時間 2019-11-10

標籤獲取後臺日期 asp 欄目 ASP 简体版

原文原文鏈接

最近全部的計劃都被打亂，生活節奏也有些控制不住，因此在本身還算清醒的時候，把以前一個小功能寫下來，對其它人也有些幫助。javascript

需求前景：須要用AJAX跨域獲取後臺服務器日期。html

1.分析需求：前端

在這個需求中，可能須要解決的幾個重點：1.AJAX。2.跨域。3.獲取後臺服務器日期，在不確認獲取的服務器日期可能要知足如下狀況：Date、Time、Year、Month、Day、Hour、Minute、Second、DateTime。java

2.實現需求：跨域

前端代碼：服務器

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="TimeIndex.aspx.cs" Inherits="AjaxGetTime.TimeIndex" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <label id="lblText"></label>
    </form>
    <script type="text/javascript">
        var xmlHttp;
        function GetXmlHttp() {
            return window.XMLHttpRequest ? new XMLHttpRequest() : new ActiveXObject("Microsoft.XMLHTTP");
        }

        function GetRequest() {
            var url = "TimeIndex.aspx?";
            xmlHttp = GetXmlHttp();
            xmlHttp.open("GET", url, true);
            xmlHttp.send("");
        }
        
    </script>
</body>
</html>

　　　後臺代碼：學習

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace AjaxGetTime
{
    public partial class TimeIndex : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            try
            {
                DateTime dateTime = DateTime.Now;
                String dateParam = (Request.QueryString["D"] == null) ? Request.QueryString["d"] : Request.QueryString["D"];
                if (dateParam!=null)
                {
                    if (dateParam.Length<50)
                    {
                        if (dateParam.Equals("Date",StringComparison.OrdinalIgnoreCase))
                        {
                            Response.Write(dateTime.ToShortDateString().ToString());
                            Response.End();
                        }
                        else if (dateParam.Equals("Time", StringComparison.OrdinalIgnoreCase))
                        {
                            Response.Write(dateTime.ToLongTimeString().ToString());
                            Response.End();
                        }
                        else if (dateParam.Equals("Year", StringComparison.OrdinalIgnoreCase))
                        {
                            Response.Write(dateTime.Year.ToString());
                            Response.End();
                        }
                        else if (dateParam.Equals("Month", StringComparison.OrdinalIgnoreCase))
                        {
                            Response.Write(dateTime.Month.ToString());
                            Response.End();
                        }
                        else if (dateParam.Equals("Day", StringComparison.OrdinalIgnoreCase))
                        {
                            Response.Write(dateTime.Day.ToString());
                            Response.End();
                        }
                        else if (dateParam.Equals("Hour", StringComparison.OrdinalIgnoreCase))
                        {
                            Response.Write(dateTime.Hour.ToString());
                            Response.End();
                        }
                        else if (dateParam.Equals("Minute", StringComparison.OrdinalIgnoreCase))
                        {
                            Response.Write(dateTime.Minute.ToString());
                            Response.End();
                        }
                        else if (dateParam.Equals("Second", StringComparison.OrdinalIgnoreCase))
                        {
                            Response.Write(dateTime.Second.ToString());
                            Response.End();
                        }
                        else if (dateParam.Equals("DateTime", StringComparison.OrdinalIgnoreCase))
                        {
                            Response.Write(dateTime.ToString());
                            Response.End();
                        }
                        else
                        {
                            Response.Write(dateTime.ToString());
                            Response.End();
                        }
                    }
                }
                else
                {
                    Response.Write(dateTime.ToString());
                    Response.End();
                }
            }
            catch (Exception)
            {
            }
        }
    }
}