关于 jquery+ajax向asp.net传递json的问题研究（呕心沥血、柳暗花明）

第一种方法：字典的方法

 //质检不合格
            $('#Button3').click(function () {
                if (!confirm('确定质检不合格吗?'))
                    return;

                var obj = new Object();
                obj.x1 = 123;
                obj.y1 = "abc";
                //var jsonText = $.toJSON(obj);
                var jsonText = JSON.stringify(obj);
                //这个时候，jsonText 传递到asp.net后，asp.net 收到字典对象，而不是字符串的json对象
                //jsonText = "'" + jsonText + "'";
                alert(jsonText);

                $.ajax({
                    type: "POST",
                    url: "Default3.aspx/ss",
                    data: "{'str':" + jsonText + "}",
                    contentType: "application/json; charset=utf-8",
                    dataType: "json",
                    async: true,
                    cache: false,
                    success: function (msg) {
                        alert(msg.d);
                    },
                    error: function (x, e) {
                        alert("The call to the server side failed. " + x.responseText);
                    }
                });

                return false;

            }); //这里是结束

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

public partial class Default3 : System.Web.UI.Page
{

    public class qhftest
    {

        public int my_x1 { get; set; }
        public string my_y1 { get; set; }

        public qhftest(int x1, string y1)
        {
            this.my_x1 = x1;
            this.my_y1 = y1;
        }

    }

    protected void Page_Load(object sender, EventArgs e)
    {

    }
    [System.Web.Services.WebMethod]
    public static string ss(object str)
    {

        //qhftest ee = JsonConvert.DeserializeObject<qhftest>(str.ToString());

        //return ee.my_x1.ToString()+"---"+ee.my_y1.ToString();

        /*
         * 先转为Dictionary对象，再转为json字符串，再转为一个具体的对象
         */
        Dictionary<string, object> tmp = (Dictionary<string, object>)str;

        qhftest ee = JsonConvert.DeserializeObject<qhftest>(JsonConvert.SerializeObject(tmp, Formatting.Indented));

        string s = "";

        foreach (string key in tmp.Keys)
        {
           s +="----" +String.Format("Key = {0}", key);
        }

        return tmp.ToString(); 

    }
}

第二种方法：呕心沥血的方法

  //质检不合格
             $('#Button3').click(function () {
                 if (!confirm('确定质检不合格吗?'))
                     return;

                 var obj = new Object();
                 obj.x1 = ;
                 obj.y1 = "abc";
                 //var jsonText = $.toJSON(obj);
                 var jsonText = JSON.stringify(obj);
                 jsonText = "'" + jsonText + "'";
                 /*
                 * 加了两边的单引号后，就变成字符串了，asp.net就非常容易转换
                 */

                 $.ajax({
                     type: "POST",
                     url: "Default3.aspx/ss",
                     data: "{'str':" + jsonText + "}",
                     contentType: "application/json; charset=utf-8",
                     dataType: "json",
                     async: true,
                     cache: false,
                     success: function (msg) {
                         alert(msg.d);
                     },
                     error: function (x, e) {
                         alert("The call to the server side failed. " + x.responseText);
                     }
                 });

                 return false;

             }); //这里是结束

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

public partial class Default3 : System.Web.UI.Page
{

    public class qhftest
    {

        public int my_x1 { get; set; }
        public string my_y1 { get; set; }

        public qhftest(int x1, string y1)
        {
            this.my_x1 = x1;
            this.my_y1 = y1;
        }

    }

    protected void Page_Load(object sender, EventArgs e)
    {

    }
    [System.Web.Services.WebMethod]
    public static string ss(object str)
    {

        qhftest ee = JsonConvert.DeserializeObject<qhftest>(str.ToString());

        return ee.my_x1.ToString()+"---"+ee.my_y1.ToString();

    }
}