這篇文章主要介紹了jQuery Ajax和getJSON獲取后臺(tái)普通json數(shù)據(jù)和層級(jí)json數(shù)據(jù)用法,結(jié)合實(shí)例形式分析了jQuery基于ajax操作json格式數(shù)據(jù)的相關(guān)技巧,需要的朋友可以參考下

本文實(shí)例講述了jQuery Ajax和getJSON獲取后臺(tái)普通json數(shù)據(jù)和層級(jí)json數(shù)據(jù)用法。分享給大家供大家參考，具體如下：

運(yùn)行效果截圖如下：

具體代碼如下：

<!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>Ajax和getJSON獲取后臺(tái)普通Json數(shù)據(jù)和層級(jí)Json數(shù)據(jù)解析</title>
  <script src="JS/jquery-1.8.0.min.js" type="text/javascript"></script>
  <script type="text/javascript">
    $(function () {
      //方式一 Ajax方式獲取Json數(shù)據(jù)
      $.ajax({
        url: 'jsondata.ashx?type=1',
        type: 'GET',
        dataType: 'json',
        timeout: 1000,
        cache: false,
        beforeSend: LoadFunction, //加載執(zhí)行方法
        error: erryFunction, //錯(cuò)誤執(zhí)行方法
        success: succFunction //成功執(zhí)行方法
      })
      function LoadFunction() {
        $("#list").html('加載中...');
      }
      function erryFunction() {
        alert("error");
      }
      function succFunction(tt) {
        var json = eval(tt); //數(shù)組
        var tt = "";
        $.each(json, function (index) {
          //循環(huán)獲取數(shù)據(jù)
          var Id = json[index].id;
          var Name = json[index].name;
          var Age = json[index].age;
          var Score = json[index].score;
          tt += Id + "___" + Name + "___" + Age + "___" + Score + "<br>";
        });
        $("#list").html('');
        $("#list").html(tt);
      }
      //方式二 Json方式獲取數(shù)據(jù)
      $.getJSON(
        "jsondata.ashx?type=1",
        function (data) {
          //循環(huán)獲取數(shù)據(jù)
          var tt = "";
          $.each(data, function (k, v) {
            $.each(v, function (kk, vv) {
              tt += kk + ":" + vv + "___";
            });
            tt += "<br/>";
          });
          $("#list2").html(tt);
        }
      );
      //方式三 Ajax方式獲取Json層級(jí)數(shù)據(jù)
      $.ajax({
        url: 'jsondata.ashx?type=3',
        type: 'GET',
        dataType: 'json',
        timeout: 1000,
        cache: false,
        beforeSend: LoadFunction1, //加載執(zhí)行方法
        error: erryFunction1, //錯(cuò)誤執(zhí)行方法
        success: succFunction1 //成功執(zhí)行方法
      })
      function LoadFunction1() {
        $("#list3").html('加載中...');
      }
      function erryFunction1() {
        alert("error");
      }
      function succFunction1(tt) {
        var json = eval(tt); //數(shù)組
        var tt = "";
        $.each(json, function (index) {
          //循環(huán)獲取數(shù)據(jù)
          var Id = json[index].id;
          var Name = json[index].name;
          var Age = json[index].age;
          var Score = json[index].score;
          tt += Id + "___" + Name + "___" + Age + "___";
          $.each(Score, function (k, v) {
            tt += k + ":" + v + "___";
          })
          tt += "<br/>";
        });
        $("#list3").html('');
        $("#list3").html(tt);
      }
      //方式四 Json方式獲取層級(jí)數(shù)據(jù)
      $.getJSON(
        "jsondata.ashx?type=3",
        function (json) {
          //循環(huán)獲取數(shù)據(jù)
          var tt = "";
          $.each(json, function (index) {
            //循環(huán)獲取數(shù)據(jù)
            var Id = json[index].id;
            var Name = json[index].name;
            var Age = json[index].age;
            var Score = json[index].score;
            tt += Id + "___" + Name + "___" + Age + "___";
            $.each(Score, function (k, v) {
              tt += k + ":" + v + "___";
            })
            tt += "<br/>";
          });
          $("#list4").html('');
          $("#list4").html(tt);
        }
      );
    });
  </script>
</head>
<body>
  <p>方式一</p>
  <ul id="list">
  </ul>
  ____________________________________
  <p>方式二</p>
  <ul id="list2">
  </ul>
  ____________________________________
  <p>方式三</p>
  <ul id="list3">
  </ul>
  ____________________________________
  <p>方式四</p>
  <ul id="list4">
  </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;
using System.Collections.Generic;
using System.Data;
using Newtonsoft.Json;
public class jsondata : IHttpHandler {
  public void ProcessRequest(HttpContext context)
  {
    context.Response.ContentType = "text/plain";
    context.Response.Cache.SetNoStore();
    string type = context.Request["type"];
    if (type=="1") //普通數(shù)據(jù)
    {
      List<Dictionary<String, String>> aa = new List<Dictionary<string, string>>();
      for (int i = 0; i < 6; i++)
      {
        Dictionary<String, String> aaa = new Dictionary<string, string>();
        aaa.Add("id", "no" + i);
        aaa.Add("name", "張三" + i);
        aaa.Add("age", "21");
        aaa.Add("score", "1001");
        aa.Add(aaa);
      }
      string json = JsonConvert.SerializeObject(aa, Formatting.Indented);
      context.Response.Write(json);
    }
    if (type == "3") //層級(jí)數(shù)據(jù)
    {
      List<Student> list = new List<Student>();
      for (int i = 0; i < 6; i++)
      {
        Student a = new Student();
        a.id = "no" + i;
        a.name = "張三" + i;
        a.age = "21";
        Dictionary<string, string> dic = new Dictionary<string, string>();
        dic.Add("語文","80");
        dic.Add("數(shù)學(xué)", "81");
        dic.Add("英語", "83");
        dic.Add("生物", "89");
        dic.Add("化學(xué)", "90");
        dic.Add("物理", "95");
        a.score = dic;
        list.Add(a);
      }
      string json = JsonConvert.SerializeObject(list, Formatting.Indented);
      context.Response.Write(json);
    }
  }
  public struct Student
  {
    public string id;
    public string name;
    public string age;
    public Dictionary<string,string> score;
  }
  public bool IsReusable
  {
    get
    {
      return false;
    }
  }
}

更多關(guān)于jQuery相關(guān)內(nèi)容感興趣的讀者可查看本站專題：《jquery中Ajax用法總結(jié)》、《jQuery表格(table)操作技巧匯總》、《jQuery拖拽特效與技巧總結(jié)》、《jQuery擴(kuò)展技巧總結(jié)》、《jQuery常見經(jīng)典特效匯總》、《jQuery動(dòng)畫與特效用法總結(jié)》、《jquery選擇器用法總結(jié)》及《jQuery常用插件及用法總結(jié)》

希望本文所述對(duì)大家jQuery程序設(shè)計(jì)有所幫助。

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