我正试图从我的json字符串中获取一个简单的值。它似乎比我想象的更难。我如何在以下JSON中找到第一个ModuleAction对象的'name'(第一个数组称为'data'):
[
{
"ModuleController":{
"id":"3"
},
"ModuleActionModuleController":[
{
"id":"4",
"module_action_id":"1",
"module_controller_id":"3",
"ModuleAction":{
"id":"1",
"name":"Overzicht",
"action":"index"
}
},
{
"id":"5",
"module_action_id":"2",
"module_controller_id":"3",
"ModuleAction":{
"id":"2",
"name":"Detail",
"action":"view"
}
}
]
}
]
这是我最好的尝试:
data[0].ModuleActionModuleController[0].id
但我有错误:
add:93 Uncaught TypeError: Cannot read property '0' of undefined
at Object.success (add:93)
at j (jquery-2.1.0.min.js:2)
at Object.fireWith [as resolveWith] (jquery-2.1.0.min.js:2)
at x (jquery-2.1.0.min.js:4)
at XMLHttpRequest.<anonymous> (jquery-2.1.0.min.js:4)
知道我做错了什么吗? :)
修改
这是返回数据JSON字符串的ajax函数:
$(function() {
$('#PageModuleId').on('change', function(){
var formData = $('#PageAddForm').serialize();
// POST to server
$.ajax({
type: 'POST',
url: '<?php echo $this->here; ?>',
dataType: 'text',
data: formData,
success: function(data){
console.log(data[0].ModuleActionModuleController[0].ModuleAction.name);
}
});
});
});
答案 0 :(得分:1)
我如何才能找到例如&#39; 名称&#39;第一个ModuleAction 以下JSON中的对象?
在我看来,你只是错过了下一个子元素:ModuleActionModuleController.ModuleAction.name
$(document).ready(function() {
var obj = jQuery.parseJSON( '{"ModuleController":{"id":"3"},"ModuleActionModuleController":[{"id":"4","module_action_id":"1","module_controller_id":"3","ModuleAction":{"id":"1","name":"Overzicht","action":"index"}},{"id":"5","module_action_id":"2","module_controller_id":"3","ModuleAction":{"id":"2","name":"Detail","action":"view"}}]}' );
//alert( obj.ModuleActionModuleController[0].ModuleAction.name );
document.body.innerHTML = obj.ModuleActionModuleController[0].ModuleAction.name;
});
&#13;
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
&#13;
答案 1 :(得分:0)
这对我有用:
var JSON = {
"data": [
{
"ModuleController":{
"id":"3"
},
"ModuleActionModuleController":[
{
"id":"4",
"module_action_id":"1",
"module_controller_id":"3",
"ModuleAction":{
"id":"1",
"name":"Overzicht",
"action":"index"
}
},
{
"id":"5",
"module_action_id":"2",
"module_controller_id":"3",
"ModuleAction":{
"id":"2",
"name":"Detail",
"action":"view"
}
}
]
}
]
};
alert(JSON.data[0].ModuleActionModuleController[0].ModuleAction.id);
&#13;