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我正在尝试解决如何从PHP文件解码JSON响应。
JSON的结构如下：
[{
"id": 1,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/amazon-webstore-379672",
"price": " - "
}
}, {
"id": 2,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/we-need-someone-to-design-t-shirts-for-the-world-cup-2014-379671",
"price": "\u00a3 50 "
}
}, {
"id": 3,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/unusual-request-for-expert-help-to-work-on-lowering-google-p-379670",
"price": "\u00a3 50 "
}
}, {
"id": 4,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/1-to-2-developers-to-work-on-a-large-project-379669",
"price": " - "
}
}, {
"id": 5,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/we-would-like-someone-to-design-some-world-cup-t-shirts-for-379665",
"price": "\u00a3 50 "
}
}, {
"id": 6,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/graphic-design-of-3-x-sample-pages-for-a-website-379664",
"price": "\u00a3 200 "
}
}, {
"id": 7,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/youtube-channel-art-379663",
"price": "\u00a3 9 "
}
}, {
"id": 8,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/pr-events-organisation-source-prizes-for-charity-raffle-379661",
"price": "\u00a3 100 "
}
}, {
"id": 9,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/wordpress-thesis-website-finessing-improve-main-opt-in-des-379659",
"price": "\u00a3 40 "
}
}, {
"id": 10,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/i-would-like-my-logo-redesigned-updated-379651",
"price": "\u00a3 10 "
}
}, {
"id": 11,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/pattern-maker-pattern-cutter-379650",
"price": " - "
}
}, {
"id": 12,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/add-captcha-379652",
"price": "\u00a3 30 "
}
}, {
"id": 13,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/setup-salesforce-api-so-we-can-just-pull-data-via-rest-379638",
"price": "\u00a3 31 "
}
}, {
"id": 14,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/simple-map-illustration-379643",
"price": "\u00a3 25 "
}
}, {
"id": 15,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/time-lapse-video-for-indoor-construction-project-12-week-p-379637",
"price": "\u00a3 1.0k "
}
}, {
"id": 16,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/i-need-a-asterisk-vicidial-expert-to-help-support-us-379640",
"price": "\u00a3 15 "
}
}, {
"id": 17,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/i-need-a-freelancer-to-provide-help-setting-up-cytoscape-379641",
"price": "\u00a3 21 \/hr"
}
}, {
"id": 18,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/500-word-article-on-business-today-379632",
"price": "\u00a3 12 "
}
}, {
"id": 19,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/web-interface-app-design-379629",
"price": "\u00a3 20 \/hr"
}
}, {
"id": 20,
"info": {
"title": "http:\/\/www.peopleperhour.com\/job\/distribute-leaflets-in-central-birmingham-379630",
"price": "\u00a3 7 \/hr"
}
}]
您可以在我的其他问题上查看当前的AJAX调用（此帖子顶部的链接）。
有没有人能够解释我如何解码JSON数组客户端？
我希望有这样的结构：
<div class="item">
<div class="title">JSON Title</div>
<div class="price">JSON Price</div>
</div>
答案 0 :(得分：1)
这是你如何做到的。您需要的是JSON.parse()
<强> test.php的
<?php
// Ajax-Server Request Handler
if (isset($_GET['loadData'])) {
exit(json_encode(array(
array(
'id' => 1,
'info' => array('title' => 'http://www.peopleperhour.com/job/amazon-webstore-379672', 'price' => ' - ')
),
array(
'id' => 2,
'info' => array('title' => 'http://www.peopleperhour.com/job/we-need-someone-to-design-t-shirts-for-the-world-cup-2014-379671', 'price' => '\u00a3 50 ')
),
array(
'id' => 3,
'info' => array('title' => 'http://www.peopleperhour.com/job/unusual-request-for-expert-help-to-work-on-lowering-google-p-379670', 'price' => '\u00a3 50 ')
)
)));
}
?>
<!-- Ajax-Client -->
<script type="text/javascript" src="http://code.jquery.com/jquery-1.10.2.min.js"></script>
<script type="text/javascript">
// When Page Loads
$(document).ready(function()
{
// Make Ajax Request
$.get("test.php?loadData", function(data)
{
// Parse Data
var jsonResults = JSON.parse(data);
// Iterate Through Results
$.each(jsonResults, function(key, value)
{
// Display Data
$('.results').append(
'<div class="item" id="'+ value.info.id +'">'+
'<div class="title">'+ value.info.title +'</div>'+
'<div class="price">'+ value.info.price +'</div>'+
'</div>'
);
});
});
});
</script>
<!-- HTML Page - Display Result -->
<div class="results"></div>
答案 1 :(得分：1)
注意：从您的其他问题来看，目前尚不清楚总是是否期望获得json答案，或者您是否可以接收json，html或xml。
如果你总是期待json：
$.ajax({ url: ..., data: ...,
dataType: 'json', // <- tell jQuery to expect json,
// and to build a js object from the answer
success : function(obj){
//obj is a regular js object, built from the received json
obj[i].info.title; // <- accessing this piece of data
}
});
如果您的数据有时是json，有时则是其他内容：
success: function(data){
var obj
try {
obj = JSON.parse(data);
// if no exception is thrown, data was a valid json string,
// and obj is a regular js object
obj[i].info.title; // <- accessing this piece of data
} catch (e) {
// Maybe do something on error ?
};
}
然后，您可以构建一个像hsuk建议的html字符串：
var html = '';
for(i=0; i < obj.length; i++) {
html += '<div class="item">';
html += '<div class="title">' + obj[i].info.title + '</div>';
html += '<div class="price">' + obj[i].info.price + '</div>';
html += '</div>';
}
alert.html(html).fadeIn();
答案 2 :(得分：0)
实际上，关于JSON（JavaScript Object Notation）的有趣的一点是你可以在Javascript中使用它。
意思是，如果你的JSON字符串是{"foo": "bar"}，你可以在Javascript中直接使用它：
var myObject = {"foo": "bar"};
或
var myJSONString = '{"foo": "bar"}';
var myObject = eval(myJSONString);
但也许您最好使用JSON.Parse，因为如果您正在解析用户数据，eval可能是漏洞，可能不一定是JSON格式。 （EG。通过HTTP发送的Json数据，客户端可能会混淆ti。）