关于ajax读取数据表中存放复合json的问题

时间：2023-01-16 22:18:40

自己模拟了一点json数据存放在了数据库一个表中大家可以自己模拟

{"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执行的php文件

<?php$db = 'mysql';$host ='localhost';$port  = '3306';$dbname = 't_shop';$user = 'root';$pwd  = '';$dsn = "$db:host=$host;port=$port;dbname=$dbname";   //设定字符集 $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();// $row是一个含有json字段键值得二维数组//打印结果   Array(    [0] => Array        (            [id] => 1            [0] => 1            [json] => {"1":{"id":"1","name":"asd","type":"1","value":"1L,4L"}}            [1] => {"1":{"id":"1","name":"asd","type":"1","value":"1L,4L"}}        )    [1] => Array        (            [id] => 2            [0] => 2            [json] => {"2":{"id":"2","name":"kjf","type":"1","value":"1L,4L"}}            [1] => {"2":{"id":"2","name":"kjf","type":"1","value":"1L,4L"}}        )    [2] => Array        (            [id] => 3            [0] => 3            [json] => {"3":{"id":"3","name":"sss","type":"1","value":"1L,4L"}}            [1] => {"3":{"id":"3","name":"sss","type":"1","value":"1L,4L"}}        ))//定义一个空数组 把二维组里json解析后放进新数组中$json = array();foreach ($row as $k=>$v){    //json新数组中放入我需要的id 和 json 的二维数组键    $json[$k]['id'] =$v['id'];    //把键值为json的json串转换成数组 放到新数组中    $json[$k]['json'] =json_decode($v['json'],true);   //转换成数组的json串   //Array(    [3] => Array        (            [id] => 3            [name] => sss            [type] => 1            [value] => 1L,4L        )) }echo json_encode($json);exit;

前端ajax接收输出

<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); //定义一个数组用来接受key                     // values.push(obj[key]);//取得value                       //追加内容定义追加对象的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="点击" onclick="get_wd()"/>                </body>


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