關於ajax讀取數據表中存放復合json的問題
阿新 • • 發佈：2017-07-27
關於ajax讀取數據表中存放復合json的問題
自己模擬了一點json數據存放在了數據庫一個表中大家可以自己模擬
{"1":{"id":"1","name":"asd","type":"1","value":"1L,4L"}}
{"2":{"id":"2","name":"kjf","type":"1","value":"1L,4L"}}
{"3":{"id":"3","name":"sss","type":"1","value":"1L,4L"}}下面我用的pdo執行的php文件
<?php
$db = ‘mysql‘;
$host =‘localhost‘;
$port = ‘3306‘;
$dbname = ‘t_shop‘;
$user = ‘root‘;
$pwd = ‘‘;
$dsn = "$db:host=$host;port=$port;dbname=$dbname";
//設定字符集
$options = array(PDO::MYSQL_ATTR_INIT_COMMAND=>‘SET NAMES \‘UTF8\‘‘);
$pdo = new PDO($dsn,$user,$pwd,$options);
$sql="select id,json from ecs_json";
$res=$pdo->query($sql);
$row = $res->fetchAll();
// $row是一個含有json字段鍵值得二維數組
//打印結果 Array
(
[0] => Array
(
[id] => 1
[0] => 1
[json] => {"1":{"id":"1","name":"asd","type":"1","value":"1L,4L"}}
[1] => {"1":{"id":"1","name":"asd","type":"1","value":"1L,4L"}}
)
[1] => Array
(
[id] => 2
[0] => 2
[json] => {"2":{"id":"2","name":"kjf","type":"1","value":"1L,4L"}}
[1] => {"2":{"id":"2","name":"kjf","type":"1","value":"1L,4L"}}
)
[2] => Array
(
[id] => 3
[0] => 3
[json] => {"3":{"id":"3","name":"sss","type":"1","value":"1L,4L"}}
[1] => {"3":{"id":"3","name":"sss","type":"1","value":"1L,4L"}}
)
)
//定義一個空數組 把二維組裏json解析後放進新數組中
$json = array();
foreach ($row as $k=>$v){
//json新數組中放入我需要的id 和 json 的二維數組鍵
$json[$k][‘id‘] =$v[‘id‘];
//把鍵值為json的json串轉換成數組 放到新數組中
$json[$k][‘json‘] =json_decode($v[‘json‘],true);
//轉換成數組的json串
//Array
(
[3] => Array
(
[id] => 3
[name] => sss
[type] => 1
[value] => 1L,4L
)
)
}
echo json_encode($json);
exit;前端ajax接收輸出
<script>
//解析json
function Object(value){
return eval("("+value+")");
}
function get_wd(){
$.get(‘./json.php‘,function (data){
var data = Object(data)
for(i in data){
var obj = data[i][‘json‘];
var keys = [];
var values = [];
for(var key in obj){
// console.log(key);
// keys.push(key); //定義一個數組用來接受key
// values.push(obj[key]);//取得value
//追加內容定義追加對象的id
$(‘#div1‘).append(‘<p>‘+obj[key][‘name‘]+‘<p>‘);
}
}
})
}
</script>
<title>前端接收json</title>
</head>
<body id="userlogin_body">
<div class="popped_card_con" id="div1">
<p>姓名</p>
</div>
<input type="button" value="點擊" onclick="get_wd()"/>
</body>本文出自 “kangjunfei” 博客，轉載請與作者聯系！
關於ajax讀取數據表中存放復合json的問題