网站首页  汉语字词  英语词汇  考试资料  写作素材  旧版资料

请输入您要查询的考试资料：

　

标题 jQuery操作JSON的CRUD用法实例
内容
    这篇文章主要介绍了jQuery操作JSON的CRUD用法,实例分析了jQuery进行CURD的操作技巧,具有一定参考借鉴价值,需要的朋友可以参考下
    本文实例讲述了jQuery操作JSON的CRUD用法。分享给大家供大家参考。具体实现方法如下：
    代码如下:
    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">
    <html xmlns="">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
    <title>Jquery ui</title>
    <link href="css/jquery-ui-1.8.16.custom.css" rel="stylesheet" type="text/css" />
    <script src="js/jquery-1.6.2.min.js" type="text/javascript"></script>
    <script src="js/jquery-ui-1.8.16.custom.js" type="text/javascript"></script>
    </head>
    // Author By Eric Liang
    <body>
    <form>
    <table id="personform">
    <tr>
    <td>id</id>
    <td>name</td>
    <td>sex</td>
    <td>age</td>
    <td>Delete Action</td>
    <td>Update Action</td>
    </tr>
    </table>
    </form>
    id: <input type="text" id="userid" />
    name: <input type="text" id="username"/>
    sex: <input type="text" id="sex"/>
    age: <input type="text" id="age"/>
    <input type="button" value="add" onclick="addperson()"/>
    </br>
    id: <input type="text" id="update_userid" disabled="disabled" />
    name: <input type="text" id="update_username"/>
    sex: <input type="text" id="update_sex"/>
    age: <input type="text" id="update_age" />
    <input type="button" value="update" onclick="update()"/>
    </body>
    </html>
    <script>
    </script>
    <script type="text/javascript">
    var jsonObj = { teacher: [
    { id:'1', name: "Eric", sex: "m", age: "40" },
    { id:'2', name: "Ghost", sex: "m", age: "28" },
    { id:'3', name: "Didi", sex: "m", age: "27" }
    ]};
    refresh();
    function refresh() {
    var persons = jsonObj.teacher;
    $("tr[name='person']").remove();
    for(var i=0; i<persons.length; i++) {
    var cur_person = persons[i];
    var cur_name = cur_person.name;
    var cur_sex = cur_person.sex;
    var cur_age = cur_person.age;
    var cur_id = cur_person.id;
    var idTd = "<td>"+ cur_id +"</td>";
    var nameTd = "<td>"+ cur_name +"</td>";
    var sexTd = "<td>"+ cur_sex +"</td>";
    var ageTd = "<td>"+ cur_age +"</td>";
    var deleteAction = "<td><a href='#' onclick='deleteperson(this)' name='";
    deleteAction += cur_id +"'" +"</a>删除</td>"
    var updateAction = "<td><a href='#' onclick='updateperson(this)' name='";
    updateAction += cur_id +"'" +"</a>更新</td>"
    //alert(deleteAction);
    var trStr = "<tr name='person'>" + idTd;
    trStr += nameTd;
    trStr += sexTd;
    trStr += ageTd;
    trStr += deleteAction;
    trStr += updateAction;
    //alert(trStr);
    $('#personform').append(trStr);
    }
    }
    function checkPersonExist(targetId) {
    var persons = jsonObj.teacher;
    for(var i=0; i<persons.length; i++) {
    var cur_person = persons[i];
    if(cur_person.id == targetId) {
    alert("添加失败! Id"+ targetId + "已经存在!");
    return false;
    }
    }
    return true;
    }
    function addperson() {
    var userid = $('#userid').val();
    var flag = checkPersonExist(userid);
    if(flag == false) {
    return false;
    }
    var username = $('#username').val();
    var sex = $('#sex').val();
    var age = $('#age').val();
    var newPerson = "{id:" + "'"+userid+"'" +","+ "name:"+ "'"+username+"'"+","+ "sex:"+"'"+sex + "'"+"," + "age:"+"'"+age+"'" +"}";
    newPerson = eval("(" + newPerson + ")");
    //$('#personform').append(trStr);
    jsonObj.teacher.push(newPerson);
    refresh();
    }
    function deleteperson(obj) {
    //alert(obj.name);
    var delId = obj.name;
    var persons = jsonObj.teacher;
    for(var i=0; i<persons.length; i++) {
    var cur_person = persons[i];
    if(cur_person.id == delId) {
    persons.splice(i,1);
    }
    }
    refresh();
    }
    function updateperson(targetId) {
    var updateId = targetId.name;
    var persons = jsonObj.teacher;
    for(var i=0; i<persons.length; i++) {
    var cur_person = persons[i];
    if(cur_person.id == updateId) {
    var cur_id = cur_person.id
    var cur_name = cur_person.name;
    var cur_sex = cur_person.sex;
    var cur_age = cur_person.age;
    $('#update_userid').attr('value',cur_id);
    $('#update_username').attr('value',cur_name);
    $('#update_sex').attr('value',cur_sex);
    $('#update_age').attr('value',cur_age);
    }
    }
    }
    function update() {
    var cur_id = $('#update_userid').val();
    var cur_name = $('#update_username').val();
    var cur_sex = $('#update_sex').val();
    var cur_age = $('#update_age').val();
    var persons = jsonObj.teacher;
    for(var i=0; i<persons.length; i++) {
    var userId = persons[i].id;
    if(cur_id == userId) {
    persons[i].name = cur_name;
    persons[i].age = cur_age;
    persons[i].sex = cur_sex;
    }
    }
    refresh();
    }
    </script>
    希望本文所述对大家的jQuery程序设计有所帮助。
随便看

　

在线学习网考试资料包含高考、自考、专升本考试、人事考试、公务员考试、大学生村官考试、特岗教师招聘考试、事业单位招聘考试、企业人才招聘、银行招聘、教师招聘、农村信用社招聘、各类资格证书考试等各类考试资料。

　

Copyright © 2002-2024 cuapp.net All Rights Reserved
更新时间：2025/5/16 0:58:34