【发布时间】：2014-06-28 19:51:29
【问题描述】：
我正在使用 JQUERY 检索多维 JSON 数组。
我需要打印出数组中的各种项目，但我很难弄清楚如何通过数组并获取这些项目，以便我可以将它们插入 HTML。
这是一个数组示例（这是从下面引用的 jsonpage.php 中获取的。
{
"count":1,
"total_count":1,
"contacts":[
{
"id":92840643,
"user_id":55536,
"first_name":"John",
"last_name":"Doe",
"full_name":"John Doe",
"initials":"JD",
"title":null,
"company":null,
"email":"john@doe.com",
"avatar":"https://graph.facebook.com/123454/picture?type=large",
"avatar_url":"https://graph.facebook.com/123454/picture?type=large",
"last_contacted":null,
"visible":true,
"twitter":null,
"facebook_url":null,
"linkedin_url":null,
"first_contacted":null,
"created_at":"2014-05-26T19:06:55Z",
"updated_at":"2014-05-26T19:12:42Z",
"hits":0,
"user_bucket_id":486405,
"team_parent_id":null,
"snoozed_at":null,
"snooze_days":null,
"groupings":[
{
"id":21554286,
"type":"Grouping::Location",
"name":"Johnson, NY",
"stub":"frisco tx",
"bucket_id":null,
"user_id":55536,
"domain_id":null,
"editable":null,
"conversable":null,
"locked":null,
"derived_from_id":null
},
{
"id":21553660,
"type":"Grouping::Bucket",
"name":"Top Customers",
"stub":"top customers",
"bucket_id":486405,
"user_id":55536,
"domain_id":null,
"editable":null,
"conversable":null,
"locked":null,
"derived_from_id":null,
"has_followups":true,
"num_days_to_followup":30,
"program_id":null
}
],
"email_addresses":[
"john@doe.com"
],
"tags":[
],
"contact_status":3,
"team_last_contacted":null,
"team_last_contacted_by":null,
"phone_numbers":[
],
"addresses":[
{
"_id":"538390cfcc0fb067d8000353",
"created_at":"2014-05-26T19:06:55Z",
"deleted_at":null,
"extra_data":{
"address_city":"Johnson",
"address_state":"NY",
"address_country":"United States"
},
"label":"Address",
"primary":null,
"remote_id":null,
"updated_at":"2014-05-26T19:06:55Z",
"username":null,
"value":"Johnson, NY\nUnited States"
}
],
"social_profiles":[
],
"websites":[
],
"custom_fields":[
{
"_id":"538390cfcc0fb067d8000354",
"custom_field_id":46639,
"deleted_at":null,
"label":"WeeklyNews",
"value":"YES"
},
{
"_id":"538390cfcc0fb067d8000355",
"custom_field_id":46640,
"deleted_at":null,
"label":"Current Credits",
"value":"142"
},
{
"_id":"538390cfcc0fb067d8000356",
"custom_field_id":46641,
"deleted_at":null,
"label":"Total Purchased Amount",
"value":"400"
},
{
"_id":"538390cfcc0fb067d8000357",
"custom_field_id":46642,
"deleted_at":null,
"label":"VDownloads",
"value":"112"
},
{
"_id":"538390cfcc0fb067d8000358",
"custom_field_id":46643,
"deleted_at":null,
"label":"AEDownloads",
"value":"9"
},
{
"_id":"538390cfcc0fb067d8000359",
"custom_field_id":46644,
"deleted_at":null,
"label":"ADownloads",
"value":"53"
},
{
"_id":"538390cfcc0fb067d800035a",
"custom_field_id":46638,
"deleted_at":null,
"label":"Last Login",
"value":"2014-05-25 23:14:19"
},
{
"_id":"538390cfcc0fb067d800035b",
"custom_field_id":46649,
"deleted_at":null,
"label":"Label",
"value":"Group1"
}
]
}
]
}
这里是jquery成功代码：
$.post('/jsonpage.php', post_data, function(response) {
});
现在，如果我输入警报（响应）；在函数内，即：
$.post('/jsonpage.php', post_data, function(response) {
alert(response);
});
然后，它“确实”提醒上面列出的整个 JSON 字符串。
但是，如果我这样说：
$.post('/jsonpage.php', post_data, function(response) {
alert(response.count);
});
然后，我在警告框中得到了 UNDEFINED。我尝试了几个不同的变量来“警报”，但它们都未定义。
感谢您的帮助！
克雷格
【问题讨论】：
-
除非您的 html 页面非常复杂并且您真的需要一切，否则 imo json 中的“东西”太多了，而 jsonpage.php 可能应该将那个巨大的 blob 缩减为更有用/更易于管理的东西/不是带宽密集型的。但是，嘿，也许你需要它！
-
谢谢詹姆斯。我正在通过 API 检索它，你是对的。我不需要这一切，我会看看如何限制它而不是把所有东西都拿回来。感谢您的评论。
-
感谢您的编辑和清理我的问题。我非常感谢。
标签： javascript jquery json