• jQuery Ajax 方法调用 Asp.Net WebService 以及调用aspx.cs中方法的详细例子


    一、jQuery Ajax 方法调用 Asp.Net WebService (引自Terry Feng)

    Html文件

    <!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 id="Head1" runat="server">
        <title></title>

        <script type="text/javascript" src="Scripts/jquery-1.4.1.js" ></script>

        <style type="text/css">
            .hover
            {
                cursor: pointer; /*小手*/
                background: #ffc; /*背景*/
            }
            .button
            {
                150px;
                float: left;
                text-align: center;
                margin: 10px;
                padding: 10px;
                border: 1px solid #888;
            }
            #dictionary
            {
                text-align: center;
                font-size: 18px;
                clear: both;
                border-top: 3px solid #888;
            }
            #loading
            {
                border: 1px #000 solid;
               
                padding: 20px;
                margin: 100px 0 0 200px;
                position: absolute;
                display: none;
            }
            #switcher
            {
            }
        </style>

        <script type="text/javascript">


            //无参数调用
            $(document).ready(function () {
                $('#btn1').click(function () {
                    $.ajax({
                        type: "POST",   //访问WebService使用Post方式请求
                        contentType: "application/json", //WebService 会返回Json类型
                        url: "WebService1.asmx/HelloWorld", //调用WebService的地址和方法名称组合 ---- WsURL/方法名
                        data: "{}",         //这里是要传递的参数,格式为 data: "{paraName:paraValue}",下面将会看到       
                        dataType: 'json',
                        success: function (result) {     //回调函数,result,返回值
                            alert(result.d);
                            $('#dictionary').append(result.d);
                        }
                    });
                });
            });


            //有参数调用
            $(document).ready(function () {
                $("#btn2").click(function () {
                    $.ajax({
                        type: "POST",
                        contentType: "application/json",
                        url: "WebService1.asmx/GetWish",
                        data: "{value1:'心想事成',value2:'万事如意',value3:'牛牛牛',value4:2009}",
                        dataType: 'json',
                        success: function (result) {
                            $('#dictionary').append(result.d);
                            
                        }
                    });
                });
            });


            //返回集合(引用自网络,很说明问题)
            $(document).ready(function () {
                $("#btn3").click(function () {
                    $.ajax({
                        type: "POST",
                        contentType: "application/json",
                        url: "WebService1.asmx/GetArray",
                        data: "{i:10}",
                        dataType: 'json',
                        success: function (result) {
                            $(result.d).each(function () {
                                //alert(this);
                                $('#dictionary').append(this.toString() + " ");
                                //alert(result.d.join(" | "));
                            });
                        }
                    });
                });
            });


            //返回复合类型
            $(document).ready(function () {
                $('#btn4').click(function () {
                    $.ajax({
                        type: "POST",
                        contentType: "application/json",
                        url: "WebService1.asmx/GetClass",
                        data: "{}",
                        dataType: 'json',
                        success: function (result) {
                            $(result.d).each(function () {
                                //alert(this);
                                $('#dictionary').append(this['ID'] + " " + this['Value']);
                                //alert(result.d.join(" | "));
                            });

                        }
                    });
                });
            });

            //返回DataSet(XML)
            $(document).ready(function () {
                $('#btn5').click(function () {
                    $.ajax({
                        type: "POST",
                        url: "WebService1.asmx/GetDataSet",
                        data: "{}",
                        dataType: 'xml', //返回的类型为XML ,和前面的Json,不一样了
                        success: function (result) {
                            //演示一下捕获
                            try {
                                $(result).find("Table1").each(function () {
                                    $('#dictionary').append($(this).find("ID").text() + " " + $(this).find("Value").text());
                                });
                            }
                            catch (e) {
                                alert(e);
                                return;
                            }
                        },
                        error: function (result, status) { //如果没有上面的捕获出错会执行这里的回调函数
                            if (status == 'error') {
                                alert(status);
                            }
                        }
                    });
                });
            });


            //Ajax 为用户提供反馈,利用ajaxStart和ajaxStop 方法,演示ajax跟踪相关事件的回调,他们两个方法可以添加给jQuery对象在Ajax前后回调
            //但对与Ajax的监控,本身是全局性的
            $(document).ready(function () {
                $('#loading').ajaxStart(function () {
                    $(this).show();
                }).ajaxStop(function () {
                    $(this).hide();
                });
            });

            // 鼠标移入移出效果,多个元素的时候,可以使用“,”隔开
            $(document).ready(function () {
                $('div.button').hover(function () {
                    $(this).addClass('hover');
                }, function () {
                    $(this).removeClass('hover');
                });
            });
            
            
        </script>

    </head>
    <body>
        <form id="form1" runat="server">
        <div id="switcher">
            <h2>
                jQuery 的WebServices 调用</h2>
            <div class="button" id="btn1">
                HelloWorld</div>
            <div class="button" id="btn2">
                传入参数</div>
            <div class="button" id="btn3">
                返回集合</div>
            <div class="button" id="btn4">
                返回复合类型</div>
            <div class="button" id="btn5">
                返回DataSet(XML)</div>
        </div>
        <div id="loading">
            服务器处理中,请稍后。
        </div>
        <div id="dictionary">
        </div>
        </form>
    </body>
    </html>

    WebService1.cs代码

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.Services;
    using System.Data;


        /// <summary>
        /// WebService1 的摘要说明
        /// </summary>
        [WebService(Namespace = "http://tempuri.org/")]
        [WebServiceBinding(ConformsTo = WsiProfiles.BasicProfile1_1)]
        [System.ComponentModel.ToolboxItem(false)]
        // 若要允许使用 ASP.NET AJAX 从脚本中调用此 Web 服务,请取消对下行的注释。
        [System.Web.Script.Services.ScriptService]
        public class WebService1 : System.Web.Services.WebService
        {
            /// <summary>
            /// 无参数
            /// </summary>
            /// <returns></returns>
            [WebMethod]
            public string HelloWorld()
            {
                return "Hello World ";
            }

            /// <summary>
            /// 带参数
            /// </summary>
            /// <param name="value1"></param>
            /// <param name="value2"></param>
            /// <param name="value3"></param>
            /// <param name="value4"></param>
            /// <returns></returns>
            [WebMethod]
            public string GetWish(string value1, string value2, string value3, int value4)
            {
                return string.Format("祝您在{3}年里 {0}、{1}、{2}", value1, value2, value3, value4);
            }

            /// <summary>
            /// 返回集合
            /// </summary>
            /// <param name="i"></param>
            /// <returns></returns>
            [WebMethod]
            public List<int> GetArray(int i)
            {
                List<int> list = new List<int>();

                while (i >= 0)
                {
                    list.Add(i--);
                }

                return list;
            }

            /// <summary>
            /// 返回一个复合类型
            /// </summary>
            /// <returns></returns>
            [WebMethod]
            public Class1 GetClass()
            {
                return new Class1 { ID = "1", Value = "牛年大吉" };
            }


            /// <summary>
            /// 返回XML
            /// </summary>
            /// <returns></returns>
            [WebMethod]
            public DataSet GetDataSet()
            {
                DataSet ds = new DataSet();
                DataTable dt = new DataTable();
                dt.Columns.Add("ID", Type.GetType("System.String"));
                dt.Columns.Add("Value", Type.GetType("System.String"));
                DataRow dr = dt.NewRow();
                dr["ID"] = "1";
                dr["Value"] = "新年快乐";
                dt.Rows.Add(dr);
                dr = dt.NewRow();
                dr["ID"] = "2";
                dr["Value"] = "万事如意";
                dt.Rows.Add(dr);
                ds.Tables.Add(dt);
                return ds;
            }


        }
        //自定义的类,只有两个属性
        public class Class1
        {
            public string ID { get; set; }
            public string Value { get; set; }
        }

    二、jQuery Ajax 方法调用 aspx.cs方法

    首先在 aspx.cs文件里建一个公开的静态方法,然后加上WebMethod属性(要引入System.Web.Services)。

    代码如下:

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

    public partial class Default2 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }
        [WebMethod]
        public static string GetUserName()
        {
            return "Hello";
        }

        //如果要在这个方法里操作session,那 还得将WebMethod的EnableSession 属性设为true 。即:

    [WebMethod(EnableSession = true)]//或[WebMethod(true)]
     public static string GetUserName1() 
     {
         return "Hello";
     }

    }

    aspx页面代码如下:

    <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>

    <!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 runat="server">
        <title></title>
          <script type="text/javascript" src="Scripts/jquery-1.4.1.js" charset="gb2132"></script>
          <script type="text/javascript">
              $.ajax({
                  type: "POST",
                  contentType: "application/json",
                  url: "Default2.aspx/GetUserName",
                  data: "{}",
                  dataType: "json",
                  success: function (result) {                 
                      alert(result.d);                 
                  }
              });

          </script>
    </head>
    <body>
        <form id="form1" runat="server">
        <div>
        
        </div>
        </form>
    </body>
    </html>

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  • 原文地址:https://www.cnblogs.com/xinhuawei/p/5414517.html
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