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jquery盗用后台方法

最近做项目,听说jquery是个不错的jquery 框架,所以就用jquery

原来虽然也了解一点jquer知识,不过都局限与他的选择器,这次做项目,稍微多用了点jquery 的AJAX方法

越到一些问题,先提供解决方法,希望能为大家提供帮助。

jquery 调用asp.net后台方法

需要在方法前面加[System.Web.Services.WebMethod] 才可以调用。并且需要是静态方法,可是这就越到个问题了,我们使用不了session与cookie,根据我跟踪我发现,ajax调用都先会执行 asp.net的load方法,所以我在调用的时候传递一个key值,然后load方法根据key值,执行方法,就可以不需要是静态方法,就可以使用 session变量!不知道大家还有没有更好的方法。我也学习下!

asp.net后台方法.cs

jquery调用后台函数 - 霰雪鸟 - 凝固的过往[System.Web.Services.WebMethod]
jquery调用后台函数 - 霰雪鸟 - 凝固的过往        
public static string AjaxServiceTest(string str)
        
{
            
return string.Format("Hello,{0}", str);
         }

前台javascript 具体见jquery api 中的ajax方法。这里就不贴出来。

  

  

 

http://blog.csdn.net/sgivee/archive/2010/02/08/5299491.aspx

 

jQuery 调用后台方法(net)

引自:http://user.qzone.qq.com/398373855?ptlang=2052

<%@ 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>无标题页</title>
    <style type="text/css">
   
     .hover
        {
            cursor: pointer; /*小手*/
            background: #ffc; /*背景*/
        }

    </style>
    <script type="text/javascript" src="js/jquery-1.3.2-vsdoc2.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: "Default2.aspx/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);
                    }
                });
            });
        });


        //有参数调用
        $(document).ready(function() {
            $("#btn2").click(function() {
                $.ajax({
                    type: "POST",
                    contentType: "application/json",
                    url: "Default2.aspx/GetWish",
                    data: "{value1:'心想事成',value2:'万事如意',value3:'牛牛牛',value4:2009}",
                    dataType: 'json',
                    success: function(result) {
                        alert(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: "Default2.aspx/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: "Default2.aspx/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: "Default2.aspx/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);
                    //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() {
            $('btn').hover(function() {
                $(this).addClass('hover');
            }, function() {
                $(this).removeClass('hover');
            });
        });
    </script>

</head>
<body>
    <form id="form1" runat="server">
    <div>
    <input type="button" id="btn1" value="HelloWorld"/>
    <input type="button" id="btn2" value="传入参数"/>
    <input type="button" id="btn3" value="返回集合"/>
    <input type="button" id="btn4" value=" 返回复合类型"/>
    <input type="button" id="btn5" value="返回DataSet(XML)"/>
    </div>
    <div id="dictionary">dictionary
    </div>
    </form>
</body>
</html>
=========================================================

using System;
using System.Collections;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.Services;

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

    }
    [WebMethod]
    public static string HelloWorld()
    {
        return "123--->456";
    }
    [WebMethod]
    public static string ABC(string ABC)
    {
        return ABC;
    }
    [WebMethod]
    public static 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 static 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 static Class1 GetClass()
    {
        return new Class1 { ID = "1", Value = "牛年大吉" };
    }


    /// <summary>
    /// 返回XML
    /// </summary>
    /// <returns></returns>
    [WebMethod]
    public static 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;
    }
    public class Class1
    {
        public string ID { get; set; }
        public string Value { get; set; }
    }

}

http://www.cxy98.com/showthread.php?5-%E8%BD%AC%E8%BD%BD%E7%9A%84%E4%B8%80%E7%AF%87jquery-%E8%B0%83%E7%94%A8asp.net%E5%90%8E%E5%8F%B0%E6%96%B9%E6%B3%95

posted on 2010-07-15 18:39  HackerVirus  阅读(383)  评论(0编辑  收藏  举报