Question

我正在尝试访问json respose字段：

$.ajax({
    type: 'POST',
    url: './get_data_json.php',
    success: function(response) {
      console.log(response);
      console.log(response['time']);
      console.log(response['0']['key'])
    }

});

get_data_json.php文件是这样的： -

<?php header('Access-Control-Allow-Origin: *'); 
$str = file_get_contents('./data.json');
echo $str;
?>

和data.json文件类似： -

{"time":"08\/11\/2017 11:10:01 am","0":{"key":"\u3075\u308b\u3055\u3068\u7d0d\u7a0e","doc_count":31626,"old_count":25737},"1":{"key":"\u5b89\u5ba4\u5948\u7f8e\u6075","doc_count":19526,"old_count":13778},"2":{"key":"\u9001\u6599\u7121\u6599","doc_count":18881,"old_count":14411},"3":{"key":"\u3010\u8a33\u3042\u308a\u3011","doc_count":13415,"old_count":7770},"4":{"key":"\u5b89\u5ba4\u5948\u7f8e\u6075 finally","doc_count":12593,"old_count":13778},"5":{"key":"\u30ef\u30f3\u30d4\u30fc\u30b9","doc_count":9516,"old_count":9203},"6":{"key":"\u798f\u888b","doc_count":8998,"old_count":5867},"7":{"key":"\u30cb\u30c3\u30c8","doc_count":8906,"old_count":9443},"8":{"key":"\u30af\u30ea\u30b9\u30de\u30b9","doc_count":8240,"old_count":4913},"9":{"key":"\u3010\u25ce\u3011","doc_count":7245,"old_count":7742},"10":{"key":"\u5317\u6b27","doc_count":7190,"old_count":6844},"11":{"key":"\u30b9\u30cc\u30fc\u30d4\u30fc","doc_count":6971,"old_count":5019},"12":{"key":"\u30c7\u30a3\u30ba\u30cb\u30fc","doc_count":6590,"old_count":5878},"13":{"key":"\u3010\u30d0\u30fc\u30b2\u30f3\u672c\u3011","doc_count":6398,"old_count":4536},"14":{"key":"\u52a0\u6e7f\u5668","doc_count":6393,"old_count":4850},"15":{"key":"\u30af\u30ea\u30b9\u30de\u30b9\u30c4\u30ea\u30fc","doc_count":6346,"old_count":4972},"16":{"key":"\u30d5\u30a1\u30fc","doc_count":6268,"old_count":5487},"17":{"key":"\u30a2\u30a6\u30c8\u30ec\u30c3\u30c8","doc_count":6057,"old_count":5305}}

console.log（响应）的响应是： -

{"time":"08\/11\/2017 11:10:01 am","0":{"key":"\u3075\u308b\u3055\u3068\u7d0d\u7a0e","doc_count":31626,"old_count":25737},"1":{"key":"\u5b89\u5ba4\u5948\u7f8e\u6075","doc_count":19526,"old_count":13778},"2":{"key":"\u9001\u6599\u7121\u6599","doc_count":18881,"old_count":14411},"3":{"key":"\u3010\u8a33\u3042\u308a\u3011","doc_count":13415,"old_count":7770},"4":{"key":"\u5b89\u5ba4\u5948\u7f8e\u6075 finally","doc_count":12593,"old_count":13778},"5":{"key":"\u30ef\u30f3\u30d4\u30fc\u30b9","doc_count":9516,"old_count":9203},"6":{"key":"\u798f\u888b","doc_count":8998,"old_count":5867},"7":{"key":"\u30cb\u30c3\u30c8","doc_count":8906,"old_count":9443},"8":{"key":"\u30af\u30ea\u30b9\u30de\u30b9","doc_count":8240,"old_count":4913},"9":{"key":"\u3010\u25ce\u3011","doc_count":7245,"old_count":7742},"10":{"key":"\u5317\u6b27","doc_count":7190,"old_count":6844},"11":{"key":"\u30b9\u30cc\u30fc\u30d4\u30fc","doc_count":6971,"old_count":5019},"12":{"key":"\u30c7\u30a3\u30ba\u30cb\u30fc","doc_count":6590,"old_count":5878},"13":{"key":"\u3010\u30d0\u30fc\u30b2\u30f3\u672c\u3011","doc_count":6398,"old_count":4536},"14":{"key":"\u52a0\u6e7f\u5668","doc_count":6393,"old_count":4850},"15":{"key":"\u30af\u30ea\u30b9\u30de\u30b9\u30c4\u30ea\u30fc","doc_count":6346,"old_count":4972},"16":{"key":"\u30d5\u30a1\u30fc","doc_count":6268,"old_count":5487},"17":{"key":"\u30a2\u30a6\u30c8\u30ec\u30c3\u30c8","doc_count":6057,"old_count":5305}}

我正在收到消息 response ['time'] =未定义 response ['0'] ['key'] = undefined

Answer 1

您需要.之类的

访问Json Key

console.log(response.time);
console.log(response[0]);
console.log(response[0].key);

查看下面的代码段

＆＃13;

var response ={"time":"08\/11\/2017 11:10:01 am","0":{"key":"\u3075\u308b\u3055\u3068\u7d0d\u7a0e","doc_count":31626,"old_count":25737},"1":{"key":"\u5b89\u5ba4\u5948\u7f8e\u6075","doc_count":19526,"old_count":13778},"2":{"key":"\u9001\u6599\u7121\u6599","doc_count":18881,"old_count":14411},"3":{"key":"\u3010\u8a33\u3042\u308a\u3011","doc_count":13415,"old_count":7770},"4":{"key":"\u5b89\u5ba4\u5948\u7f8e\u6075 finally","doc_count":12593,"old_count":13778},"5":{"key":"\u30ef\u30f3\u30d4\u30fc\u30b9","doc_count":9516,"old_count":9203},"6":{"key":"\u798f\u888b","doc_count":8998,"old_count":5867},"7":{"key":"\u30cb\u30c3\u30c8","doc_count":8906,"old_count":9443},"8":{"key":"\u30af\u30ea\u30b9\u30de\u30b9","doc_count":8240,"old_count":4913},"9":{"key":"\u3010\u25ce\u3011","doc_count":7245,"old_count":7742},"10":{"key":"\u5317\u6b27","doc_count":7190,"old_count":6844},"11":{"key":"\u30b9\u30cc\u30fc\u30d4\u30fc","doc_count":6971,"old_count":5019},"12":{"key":"\u30c7\u30a3\u30ba\u30cb\u30fc","doc_count":6590,"old_count":5878},"13":{"key":"\u3010\u30d0\u30fc\u30b2\u30f3\u672c\u3011","doc_count":6398,"old_count":4536},"14":{"key":"\u52a0\u6e7f\u5668","doc_count":6393,"old_count":4850},"15":{"key":"\u30af\u30ea\u30b9\u30de\u30b9\u30c4\u30ea\u30fc","doc_count":6346,"old_count":4972},"16":{"key":"\u30d5\u30a1\u30fc","doc_count":6268,"old_count":5487},"17":{"key":"\u30a2\u30a6\u30c8\u30ec\u30c3\u30c8","doc_count":6057,"old_count":5305}};
console.log(response.time);
console.log(response[0]);
console.log(response[0].key);

＆＃13;

在javascript中访问json字段

1 个答案: