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：
复制代码 代码如下:<!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>
<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="/UploadFiles/2021-04-02/jquery-1.6.2.min.js">
<script src="js/jquery-ui-1.8.16.custom.js">
</head>
// Author By Eric Liang
<body>
<form>
<table border="1" 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。
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昨天有一位朋友在大神群里分享，自己亚服账号被封号之后居然弹出了国服的封号信息对话框。
这里面让他访问的是一个国服的战网网址，com.cn和后面的zh都非常明白地表明这就是国服战网。
而他在复制这个网址并且进行登录之后，确实是网易的网址，也就是我们熟悉的停服之后国服发布的暴雪游戏产品运营到期开放退款的说明。这是一件比较奇怪的事情，因为以前都没有出现这样的情况，现在突然提示跳转到国服战网的网址，是不是说明了简体中文客户端已经开始进行更新了呢？