WebForm种Ajax调用WebService

using System.ComponentModel;
using System.Web.Script.Services;
using System.Web.Services;

namespace AjaxCallWebServiceInWebFormDemo
{
    /// <summary>
    ///     WebService1 的摘要说明
    /// </summary>
    [WebService(Namespace = "http://tempuri.org/")]
    [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
    [ToolboxItem(false)]
    // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务,请取消注释以下行。 
    [ScriptService]
    public class WebService1 : WebService
    {
        [WebMethod]
        public string HelloWorld()
        {
            return "Hello World";
        }

        /// <summary>
        ///     和某人打招呼
        /// </summary>
        /// <param name="name">名字</param>
        /// <returns>和某人打招呼</returns>
        [WebMethod(CacheDuration = 60, Description = "和某人打招呼!")]
        public string SayHelloToSomeone(string name)
        {
            return $"Nice to meet you, {name}.";
        }
    }
}
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Index.aspx.cs" Inherits="AjaxCallWebServiceInWebFormDemo.Index" %>

<!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>WebForm种Ajax调用WebService</title>
    <script src="Scripts/jquery-3.4.1.min.js"></script>
    <script type="text/javascript">
        $(function() {
            $("#btnAjaxCallWebService").click(function() {
                $.ajax({
                    type: 'POST',
                    contentType: 'application/json',
                    url: 'WebService1.asmx/SayHelloToSomeone',
                    dataType: 'json',
                    data: '{ name: "LDH" }',
                    success: function(data) {
                        alert('执行结果:' + data.d);
                        console.log('%c 执行成功!', 'color:pink;font-size:50px');
                    },
                    error: function(data) {
                        alert(data.responseText);
                        console.log('%c 执行失败!' + data.responseText, 'color:red;font-size:50px');
                    },
                    complete: function() {
                        alert('执行完成!');
                        console.log('%c 执行完成!', 'color:green;font-size:50px');
                    }
                });
            });
        });
    </script>
</head>
<body>
<form id="form1" runat="server">
    <input type="button" id="btnAjaxCallWebService" value="Ajax调用WebService"/>
    <%--<button id="btnAjaxCallWebService">Ajax调用WebService</button>--%>
</form>
</body>
</html>

踏实做一个为人民服务的搬运工!
原文地址:https://www.cnblogs.com/LifeDecidesHappiness/p/14791869.html