jQuery ajax asp.net mvc Webservice Json

后台:

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

namespace MvcAll.Server
{
    /// <summary>
    /// PicLib 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 PicLib : 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" };
        }
        [WebMethod]
        public object[] GetClass1()
        {
            return new object[] { 213,"中国",2.333};
        }

        /// <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; }
    }

}

 

前台

<%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage" %>

<asp:Content ID="indexTitle" ContentPlaceHolderID="TitleContent" runat="server">
    Home Page
</asp:Content>
<asp:Content ID="indexContent" ContentPlaceHolderID="MainContent" runat="server">
    <style type="text/css">
        .hover
        {
            cursor: pointer; /*小手*/
            background: #ffc; /*背景*/
        }
        .button
        {
            width: 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;
            background-color: #eee;
            padding: 20px;
            margin: 100px 0 0 200px;
            position: absolute;
            display: none;
        }
        #switcher
        {
        }
    </style>

    <script type="text/javascript" src="/Scripts/jquery-1.3.2.js"></script>

    <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: "/Server/PicLib.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
                        $('#dictionary').append(result.d);
                        alert(result.d);
                    }
                });
            });
        });


        //有参数调用
        $(document).ready(function() {
            $("#btn2").click(function() {
                $.ajax({
                    type: "POST",
                    contentType: "application/json",
                    url: "/Server/PicLib.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: "/Server/PicLib.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: "/Server/PicLib.asmx/GetClass1",//可以改成GetClass
                    data: "{}",
                    dataType: 'json',
                    success: function(result) {
                       
                        $(result.d).each(function() {
                            //alert(this);
                            $('#dictionary').append(this['ID'] + " " + this['Value']);
                            //alert(result.d.join(" | "));
                        });
                        alert(result.d + ' ' + result.d);
                        var msg = eval( result );
                        alert(msg.d.ID + '' + msg.d.Value); 

                    }
                });
            });
        });

        //返回DataSet(XML)
        $(document).ready(function() {
            $('#btn5').click(function() {
                $.ajax({
                    type: "POST",
                    url: "/Server/PicLib.asmx/GetDataSet",
                    data: "{}",
                    dataType: 'xml', //返回的类型为XML ，和前面的Json，不一样了
                    success: function(result) {
                        alert(result.toString());
                        //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);
                        }
                        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>

    <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>
</asp:Content>