我有一个包含对象和数组的(嵌套)数据结构。并尝试发送数据表,但只显示一个值。
JSON数据:
{
"data": [{
"name": "name1",
"value": "value1",
"list": [{
"sname": "sname1",
"svalue": "svalue1"
}, {
"sname": "sname2",
"svalue": "svalue2"
}]
}]
}
使用Java通过URL获取JSON数据。
jQuery代码:
var pk = $("#pk").val();
console.log(pk);
url = "/register/search?id=" + pk;
console.log(url);
$('#largeTable').DataTable({
"ajax": url,
"bDestroy": true,
"columns": [{
"data": "name"
},
{
"data": "value"
},
{
"data": "list.1.sname"
},
{
"data": "list.1.svalue"
},
{
"data": null,
"defaultContent": editview
}
]
});
此处可以使用list
或list.1
list.0
值
但我一次想要两个值。
答案 0 :(得分:0)
json数据结构中的list
是一个数组。所以,你应该使用
list.forEach(function(element) {
//console.log(element);
});
您可以创建一个对象并动态构建JSON并将其设置为“columns”数组。
以下是一个例子:
// make an empty object
var myObject = {};
// set the "list1" property to an array of strings
myObject.list1 = ['1', '2'];
// you can also access properties by string
myObject['list2'] = [];
// accessing arrays is the same, but the keys are numbers
myObject.list2[0] = 'a';
myObject['list2'][1] = 'b';
myObject.list3 = [];
// instead of placing properties at specific indices, you
// can push them on to the end
myObject.list3.push({});
// or unshift them on to the beginning
myObject.list3.unshift({});
myObject.list3[0]['key1'] = 'value1';
myObject.list3[1]['key2'] = 'value2';
myObject.not_a_list = '11';
答案 1 :(得分:0)
如果使用render或mRender,则可以对对象执行所需的操作。例如,您可以像本例中那样遍历数组。
$('#largeTable').DataTable({
"columnDefs": [
{"targets": [0], "title":"name", "data":"name"},
{"targets": [1], "title":"value", "data":"value"},
{"targets": [2], "title":"list", "data":"list", "type":"html"
"render":function(data){
var listArray = data;
var listHtml = "";
for(var i=0;i<listArray.length;i++) {
listHtml += listArray[i].sname + " " + listArray[i].svalue + "<br>";
}
return listHtml;
},
}]
});
$.ajax({
"type":"GET",
"url":url,
"success":function(data,status) {
var jsonData = $.parseJSON(data);
$('#largeTable').dataTable().fnAddData(jsonData);
}