1. 程式人生 > >Jquery 使用Ajax獲取後臺返回的Json數據後,頁面處理

Jquery 使用Ajax獲取後臺返回的Json數據後,頁面處理

[] object inpu empty 獲取 reader form 取數 oid

<!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>
    <title></title>
    <script src="JS/jquery-1.8.0.min.js" type="text/javascript"></script>
    <script type="
text/javascript"> $(function () { $.ajax({ url: jsondata.ashx, type: GET, dataType: json, timeout: 1000, cache: false, beforeSend: LoadFunction, //加載執行方法 error: erryFunction, //錯誤執行方法
success: succFunction //成功執行方法 }) function LoadFunction() { $("#list").html(加載中...); } function erryFunction() { alert("error"); } function succFunction(tt) { $("#list").html(‘‘);
//eval將字符串轉成對象數組 //var json = { "id": "10086", "uname": "zhangsan", "email": "[email protected]" }; //json = eval(json); //alert("===json:id=" + json.id + ",uname=" + json.uname + ",email=" + json.email); var json = eval(tt); //數組 $.each(json, function (index, item) { //循環獲取數據 var name = json[index].Name; var idnumber = json[index].IdNumber; var sex = json[index].Sex; $("#list").html($("#list").html() + "<br>" + name + " - " + idnumber + " - " + sex + "<br/>"); }); } }); </script> </head> <body> <ul id="list"> </ul> </body> </html>
<%@ WebHandler Language="C#" Class="jsondata" %>

using System;
using System.Web;
using System.Web.Script.Serialization;
using System.IO;
using System.Text;
using System.Collections.Generic;
using Newtonsoft.Json;
using System.Data;

public class jsondata : IHttpHandler {

    public void ProcessRequest(HttpContext context)
    {
        context.Response.ContentType = "text/plain";
        string JsonStr = JsonConvert.SerializeObject(CreateDT());
        context.Response.Write(JsonStr);
        context.Response.End();
    }

    #region 創建測試數據源
    //創建DataTable
    protected DataTable CreateDT()
    {
        DataTable tblDatas = new DataTable("Datas");
        //序號列
        //tblDatas.Columns.Add("ID", Type.GetType("System.Int32"));
        //tblDatas.Columns[0].AutoIncrement = true;
        //tblDatas.Columns[0].AutoIncrementSeed = 1;
        //tblDatas.Columns[0].AutoIncrementStep = 1;
        //數據列
        tblDatas.Columns.Add("IdNumber", Type.GetType("System.String"));
        tblDatas.Columns.Add("Name", Type.GetType("System.String"));
        tblDatas.Columns.Add("BirthDate", Type.GetType("System.String"));
        tblDatas.Columns.Add("Sex", Type.GetType("System.String"));
        tblDatas.Columns.Add("Wage", Type.GetType("System.Decimal"));
        tblDatas.Columns.Add("Bonus", Type.GetType("System.Decimal"));
        //統計列開始
        tblDatas.Columns.Add("NeedPay", Type.GetType("System.String"), "Wage+Bonus");
        //統計列結束
        tblDatas.Columns.Add("Address", Type.GetType("System.String"));
        tblDatas.Columns.Add("PostCode", Type.GetType("System.String"));
        //設置身份證號碼為主鍵
        tblDatas.PrimaryKey = new DataColumn[] { tblDatas.Columns["IdNumber"] };

        tblDatas.Rows.Add(new object[] { "43100000000000", "張三", "1982", "0", 3000, 1000, null, "深圳市", "518000" });
        tblDatas.Rows.Add(new object[] { "43100000000001", "李四", "1983", "1", 3500, 1200, null, "深圳市", "518000" });
        tblDatas.Rows.Add(new object[] { "43100000000002", "王五", "1984", "1", 4000, 1300, null, "深圳市", "518000" });
        tblDatas.Rows.Add(new object[] { "43100000000003", "趙六", "1985", "0", 5000, 1400, null, "深圳市", "518000" });
        tblDatas.Rows.Add(new object[] { "43100000000004", "牛七", "1986", "1", 6000, 1500, null, "深圳市", "518000" });
        return tblDatas;
    }
    #endregion 

    public bool IsReusable
    {
        get
        {
            return false;
        }
    }
}
<!--
        <script type="text/javascript">
        $(function () {
            $.ajax({
                url: jsondata.ashx,
                type: GET,
                dataType: json,
                timeout: 1000,
                cache: false,
                beforeSend: LoadFunction, //加載執行方法  
                error: erryFunction,  //錯誤執行方法  
                success: succFunction //成功執行方法  
            })
            function LoadFunction() {
                $("#list").html(加載中...);
            }
            function erryFunction() {
                alert("error");
            }
            function succFunction(tt) {
                $("#list").html(‘‘);

                //eval將字符串轉成對象數組
                //var json = { "id": "10086", "uname": "zhangsan", "email": "[email protected]" };
                //json = eval(json);
                //alert("===json:id=" + json.id + ",uname=" + json.uname + ",email=" + json.email);

                var json = eval(tt); //數組       
                $.each(json, function (index, item) {
                    //循環獲取數據  
                    var Key = json[index].key;
                    var Info = json[index].info;
                    //                 var idnumber = json[index].IdNumber;
                    //                 var sex = json[index].Sex;
                    $("#list").html($("#list").html() + "<br>" + Key + "----" + Info.name); //+ " - " + idnumber + " - " + sex + "<br/>");
                });
            }
        });
    </script>
-->
<%@ WebHandler Language="C#" Class="jsondata" %>

using System;
using System.Web;
using System.Web.Script.Serialization;
using System.IO;
using System.Text;
using System.Collections;
using System.Collections.Generic;
using System.Data;

public class jsondata : IHttpHandler {

    public void ProcessRequest(HttpContext context)
    {
        context.Response.ContentType = "text/plain";
        context.Response.Cache.SetNoStore();
        string data = "[{\"key\":\"1\",\"info\":{\"name\":\"222\",\"age\":\"333\",\"sex\":\"444\"}},{\"key\":\"2\",\"info\":{\"name\":\"999\",\"age\":\"000\",\"sex\":\"111\"}}]";
        context.Response.Write(new JavaScriptSerializer().Serialize(data));
    }


    public bool IsReusable
    {
        get
        {
            return false;
        }
    }
}
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Test2013.aspx.cs" Inherits="Test2013" %>

<!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 src="JS/jquery-1.8.0.min.js" type="text/javascript"></script>  
   <script type="text/javascript">
       function GetPara(o) {
           var sortid = $(o).val();
           $.ajax({
               url: GetPara.ashx?type=get&sortid= + sortid,
               type: GET,
               dataType: json,
               timeout: 3000,
               cache: false,
               beforeSend: LoadFunction, //加載執行方法    
               error: erryFunction,  //錯誤執行方法    
               success: succFunction //成功執行方法    
           })
           function LoadFunction() {
               $("#list").html(加載中...);
           }
           function erryFunction() {
               alert("error");
           }
           function succFunction(tt) {
               $("#list").html(‘‘);
               var json = eval(tt); //數組
               $.each(json, function (index, item) {
                   //循環獲取數據    
                   var Id = json[index].id;
                   var Name = json[index].name;
                   $("#list").html($("#list").html() + "<br>" + Name + "<input type=‘text‘ id=‘" + Id + "‘ /><br/>");
               });
           }
       };


       function SavePara() {
           var parameter = {};
           $("#list input:text").each(function () {
               var key = $(this).attr("id");
               var value = $(this).val();
               parameter[key] = value;
           });    

           $.ajax({
               url: GetPara.ashx?type=save,
               type: POST,
               dataType: json,
               data: parameter,
               timeout: 3000,
               cache: false,
               beforeSend: LoadFunction, //加載執行方法    
               error: erryFunction,  //錯誤執行方法    
               success: succFunction //成功執行方法    
           })
           function LoadFunction() {
           }
           function erryFunction() {
           }
           function succFunction(tt) {
           }
       };
   </script>  

</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:DropDownList ID="ddl1" runat="server" onchange="GetPara(this)">
        </asp:DropDownList>
        <ul id="list"></ul>

        <input type="button" value="保存數據" onclick="SavePara()" />
    </div>
    </form>
</body>
</html>
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Test2013.aspx.cs" Inherits="Test2013" %>

<!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 src="JS/jquery-1.8.0.min.js" type="text/javascript"></script>  
   <script type="text/javascript">
       function GetPara(o) {
           var sortid = $(o).val();
           $.ajax({
               url: GetPara.ashx?type=get&sortid= + sortid,
               type: GET,
               dataType: json,
               timeout: 3000,
               cache: false,
               beforeSend: LoadFunction, //加載執行方法    
               error: erryFunction,  //錯誤執行方法    
               success: succFunction //成功執行方法    
           })
           function LoadFunction() {
               $("#list").html(加載中...);
           }
           function erryFunction() {
               alert("error");
           }
           function succFunction(tt) {
               $("#list").html(‘‘);
               var json = eval(tt); //數組
               $.each(json, function (index, item) {
                   //循環獲取數據    
                   var Id = json[index].id;
                   var Name = json[index].name;
                   $("#list").html($("#list").html() + "<br>" + Name + "<input type=‘text‘ id=‘" + Id + "‘ /><br/>");
               });
           }
       };


       function SavePara() {
           var parameter = {};
           $("#list input:text").each(function () {
               var key = $(this).attr("id");
               var value = $(this).val();
               parameter[key] = value;
           });    

           $.ajax({
               url: GetPara.ashx?type=save,
               type: POST,
               dataType: json,
               data: parameter,
               timeout: 3000,
               cache: false,
               beforeSend: LoadFunction, //加載執行方法    
               error: erryFunction,  //錯誤執行方法    
               success: succFunction //成功執行方法    
           })
           function LoadFunction() {
           }
           function erryFunction() {
           }
           function succFunction(tt) {
           }
       };
   </script>  

</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:DropDownList ID="ddl1" runat="server" onchange="GetPara(this)">
        </asp:DropDownList>
        <ul id="list"></ul>

        <input type="button" value="保存數據" onclick="SavePara()" />
    </div>
    </form>
</body>
</html>
<%@ WebHandler Language="C#" Class="GetPara" %>

using System;
using System.Web;
using System.Data;
using System.Collections.Generic;
using System.Web.Script.Serialization;  


public class GetPara : IHttpHandler {    
    public void ProcessRequest (HttpContext context) {
        context.Response.ContentType = "text/plain";
        string SortId = context.Request["sortid"];
        string Type = context.Request["type"];
        if (Type=="get")
        {
            if (!string.IsNullOrEmpty(SortId))
            {
                DataTable dt = MSCL.SqlHelper.GetDataTable("select * from PR_PRODUCTPARAS where sortid=‘" + SortId + "");
                List<Paras> list = new List<Paras>();
                for (int i = 0; i < dt.Rows.Count; i++)
                {
                    Paras a = new Paras();
                    a.id = dt.Rows[i]["PARAID"].ToString();
                    a.name = dt.Rows[i]["PARANAME"].ToString();
                    list.Add(a);
                }
                context.Response.Write(new JavaScriptSerializer().Serialize(list));
            }
        }
        else if (Type == "save")
        {
            //反序列化json 
            System.IO.Stream stream = context.Request.InputStream;
            System.IO.StreamReader sr = new System.IO.StreamReader(stream, System.Text.Encoding.GetEncoding("UTF-8"));
            string sJson = sr.ReadToEnd();
            if (sJson.Contains("&"))
            {
                string[] sArr = sJson.Split(&);
                for (int i = 0; i < sArr.Length; i++)
                {
                    string[] sArr1 = sArr[i].Split(=);
                    object id = sArr1[0];
                    object value = sArr1[1];
                }
            }
        }
        else
        { }
    }
 
    public bool IsReusable {
        get {
            return false;
        }
    }

    public struct Paras
    {
        public string id;
        public string name; 
    }
}

Jquery 使用Ajax獲取後臺返回的Json數據後,頁面處理