利用ajax实现与php(json数组)数据交互,并局部刷新页面
json
适用于现代 C++ 的 JSON。
项目地址:https://gitcode.com/gh_mirrors/js/json

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利用ajax实现与php数据交互,并局部刷新页面
本文主要有以下几个要点:
- ajax的基本语法结构
- jQuery基本语法
- json数组基本结构
- ajax回调函数中的json数组解析及局部刷新
- php基本语法
- ajax与php的对接
- php中post数据提交方式与接收
ajax基本语法
$.ajax({
type: "post", //数据提交方式(post/get)
url: "demo.php", //提交到的url
data: {username:username,password:password},//提交的数据
dataType: "json",//返回的数据类型格式
success: function(msg){
...//返回成功的回调函数
},
error:function(msg){
...//返回失败的回调函数
}
});
php端的接收方法
<?php
$username=$_POST['username'];//接收以post方式提交来的username数据
$password=$_POST['password'];
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>ajaxTest</title>
</head>
<body>
<input type="text" id="username">
<input type="text" id="password">
<button id="sub">查询</button>
<span id="text"></span><!-- 用以显示返回来的数据,只刷新这部分地方 -->
</body>
<script src="//cdn.bootcss.com/jquery/3.0.0-alpha1/jquery.min.js"></script>
</html>
php端代码demo.php
<?php
header('Content-type:text/json;charset=utf-8');
$username=$_POST['username'];
$password=$_POST['password'];
$data='{username:"' . $username . '",password:"' . $password .'"}';//组合成json格式数据
echo json_encode($data);//输出json数据
<script>
$(function(){
$('#sub').click(function(){
var username=$('#username').val();
var password=$('#password').val();
$.ajax({
type: "post",
url: "demo.php",
data: {username:username,password:password},//提交到demo.php的数据
dataType: "json",//回调函数接收数据的数据格式
success: function(msg){
$('#text').empty(); //清空Text里面的所有内容
var data='';
if(msg!=''){
data = eval("("+msg+")"); //将返回的json数据进行解析,并赋给data
}
$('#text').html("用户名为:" + data.username + ",密码为:" + data.password); //在#text中输出
console.log(data); //控制台输出
},
error:function(msg){
console.log(msg);
}
});
});
})
</script>
最终效果如下
demo下载地址
下载demo : http://download.csdn.net/detail/haibusoi/9244147
引用:http://blog.csdn.net/haibusoi/article/details/49663243




适用于现代 C++ 的 JSON。
最近提交(Master分支:1 个月前 )
b451735f
Bumps [lukka/get-cmake](https://github.com/lukka/get-cmake) from 4.0.2 to 4.0.3.
- [Release notes](https://github.com/lukka/get-cmake/releases)
- [Commits](https://github.com/lukka/get-cmake/compare/ea004816823209b8d1211e47b216185caee12cc5...6b3e96a9bc9976b8b546346fdd102effedae0ca8)
---
updated-dependencies:
- dependency-name: lukka/get-cmake
dependency-version: 4.0.3
dependency-type: direct:production
update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> 1 天前
568b708f
Bumps [step-security/harden-runner](https://github.com/step-security/harden-runner) from 2.12.0 to 2.12.1.
- [Release notes](https://github.com/step-security/harden-runner/releases)
- [Commits](https://github.com/step-security/harden-runner/compare/0634a2670c59f64b4a01f0f96f84700a4088b9f0...002fdce3c6a235733a90a27c80493a3241e56863)
---
updated-dependencies:
- dependency-name: step-security/harden-runner
dependency-version: 2.12.1
dependency-type: direct:production
update-type: version-update:semver-patch
...
Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> 6 天前
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