• ajax异步通信


    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <title></title>
        <script language="javascript" type="text/javascript" src="jquery-1.8.0.min.js"></script>
        <script language="javascript">
            $(function () {
                $(":input").mouseenter(function () {
                    $(this).css("border", "1px solid red");
                });
                $(":input").mouseout(function () {
                    $(this).css("border", "1px solid black");
                });
            });
            var xmlHttp;
            function createXMLHttpRequest() {
                if (window.ActiveXObject)
                    xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
                else if (window.XMLHttpRequest)
                    xmlHttp = new XMLHttpRequest();
            }
            function startRequest() {
                createXMLHttpRequest();
                xmlHttp.open("GET", "Default.aspx", true);
                xmlHttp.onreadystatechange = function(){
                    if (xmlHttp.readyState == 4 && xmlHttp.status == 200)
                        alert("服务器返回"+xmlHttp.responseText);
                }
                xmlHttp.send(null);
                //alert("服务器返回" + xmlHttp.responseText);
            }
        </script>
        <style type="text/css">
            .btn 
            {
                60px;
                border:1px solid red; 
                background-color:gray;
                color:Red;
            }
        </style>
    </head>
    <body>
    <center>
    <form>
    <table>
    <tr>
        <td><label>用户名</label></td><td><input type="text" name="name" /></td>
    </tr>
    <tr>
        <td><label>密码</label></td><td><input type="password" name="pass" /></td>
    </tr>
    <tr>
        <td></td><td align="center"><input type="button" value="OK" class="btn" />&nbsp<input type="reset" value="reset" class="btn" /></td>
    </tr>
    </table>
    <p>Test JS</p>
    <input type="button" value="测试异步通信" onclick="startRequest()" />
    </form>
    </center>
    </body>
    </html>
    
     
     
    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" ContentType="text/html" ResponseEncoding="gb2312" %>
    <%@ Import Namespace="System.Data" %>
    <%
        Response.Write("异步测试成功,Hello!!");    
    %>
    
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  • 原文地址:https://www.cnblogs.com/perock/p/2633620.html
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