0-ajax操作json(番外篇)

使用Ajax获取JSON数据

最新推荐文章于 2025-09-11 22:10:09 发布

weixin_30538029

最新推荐文章于 2025-09-11 22:10:09 发布

阅读量66

点赞数

CC 4.0 BY-SA版权

文章标签： json javascript 前端 ViewUI

原文链接：http://www.cnblogs.com/dshvv/p/5577260.html

本文介绍了如何使用Ajax GET请求从本地文件中加载JSON数据，并展示了三种不同的应用实例：获取单个对象属性、批量读取JSON数组及在项目实战中动态填充表格。

【可以先看后边再看此文】

get获取json

前端代码

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <script type="text/javascript" src="js/jquery-2.1.4.min.js"></script>
        <title></title>
    </head>
    <body>
        <div >
            小丁的年龄是：<span id="dsh"></span>
        </div>
        <script type="text/javascript">
            $.ajax({   
               type: "get",   
               url:  "DB.json", 
               datatype: "json",//"xml", "html", "script", "html", "jsonp", "text".
               success: function (data,status) {
                   document.getElementById("dsh").innerHTML=data.teacher[1].age;
                   //var js=JSON.stringify(data);//转换成json字符串
               },
               error:   function (data,status) { alert("Ajax请求Json错误");}   
             });  
        </script>
    </body>
</html>

DB.json

{ "student": [
{ "name": "王老师",  "age": "40" },
{ "name": "丁老师",  "age": "30" }
],
"teacher": [
{ "name": "小王",  "age": "20" },
{ "name": "小丁",  "age": "10" }
] }

效果

html批量读取json

html

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <script type="text/javascript" src="js/jquery-2.1.4.min.js"></script>
        <title></title>
    </head>
    <body>
        <script type="text/javascript">
            $.ajax({   
               type: "get",   
               url:  "DB.json", 
               datatype: "json",//"xml", "html", "script", "html", "jsonp", "text".
               success: function (data,status) {
                      document.writeln("学生：<br/>")
                       for (var x in data.student) {
                           document.writeln(data.student[x].name+data.student[x].age+"<br/>")
                       }
                       
                       document.writeln("<p/>老师：<br/>")
                       for (var x in data.teacher) {
                           document.writeln(data.teacher[x].name+data.teacher[x].age+"<br/>")
                       }
               },
               error:   function (data,status) { alert("Ajax请求Json错误");}   
             });  
        </script>
    </body>
</html>

json

{ "student": [
{ "name": "小王",  "age": "10" },
{ "name": "小丁",  "age": "20" }
],
"teacher": [
{ "name": "王老师",  "age": "30" },
{ "name": "丁老师",  "age": "40" }
] }

效果

项目实战

html

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <script type="text/javascript" src="js/jquery-2.1.4.min.js"></script>
        <style type="text/css">
            table{border-collapse: collapse; width: 100%;}
            table tr td{border: red solid 1px;  width: 50%; text-align: center;}
        </style>
    </head>
    <body>
        <table>
        </table>
        <script type="text/javascript">
            $.ajax({   
                type: "get",   
                  url:  "DB.json", 
                  datatype: "json",
                   success: function (data) {
                       for (var i=0; i<data.length; i++) {
                           $("table").append(
                               "<tr><td>"+data[i].name+"</td><td>"+data[i].age+"</td></tr>"
                           )
                       }
                   },
                   error:function () { alert("Ajax请求Json错误");}
               });
        </script>
    </body>
</html>

json

[
{"name": "小王",  "age": "10" },
{ "name": "小丁",  "age": "20" },
{ "name": "小红",  "age": "18" }
]

效果

转载于:https://www.cnblogs.com/dshvv/p/5577260.html