我正在使用JQUERY检索多维JSON数组。
我需要从数组中打印出各种项目，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到HTML中。
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"
}
]
}
]
}
这是jquery成功代码：
$.post('/jsonpage.php', post_data, function(response) {
});
现在，如果我发出警报（响应）;在该职能范围内，即：
$.post('/jsonpage.php', post_data, function(response) {
alert(response);
});
然后，它确实＆＃39;警告上面列出的整个JSON字符串。
但是，如果我这样说：
$.post('/jsonpage.php', post_data, function(response) {
alert(response.count);
});
然后，我在警告框中显示UNDEFINED。我尝试了一些不同的变量来警告＆＃39;他们都回来了未定义。
感谢您的帮助！
克雷格
答案 0 :(得分：1)
response.total_count
response.contacts[0].id
response.contacts[0].groupings[0].stub
等等。
答案 1 :(得分：1)
以下是在json响应中使用数据的一些方法。希望它有所帮助。
$.post('/jsonpage.php', post_data, function(response) {
if (!response.contacts || !response.contacts.length) {
alert("Error loading that/those contact(s)");
return;
}
for (var i=0, c; c = response.contacts[i]; i++) {
// c is each contact, do stuff with c
alert("That contact was created at " + c.created_at + " and last updated at " + c.updated_at);
var cities = [];
for (var j=0, a; a = c.addresses[j]; j++) {
// a refers to each address
cities.push(a.extra_data.address_city);
}
alert(c.full_name + " lives in " + cities.join(" and ") + ".");
for (var j=0, cf; cf = c.custom_fields[j]; j++) {
// cf is each custom_field
// build a form or something
// element label is cf.label
// element value is currently cf.value
var p = document.createElement("p");
p.appendChild(document.createTextNode(cf.label));
var el = document.createElement("input");
el.type = "text";
el.value = cf.value;
p.appendChild(el);
document.getElementById("someForm").appendChild(p);
}
}
});
答案 2 :(得分：0)
试试这个
var data = { "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"}]}] };
alert(data["contacts"][0]["id"]);
//get count
alert(data["count"]); //1
//get first contacts data
data["contacts"][0]["id"] //retruns 92840643
//do same for others to get data