Question

我有一个像这样的json数组

AlreadySaved:[  
{  
  "SNO":1,
  "SNUMBER":"827",
  "STARTDATE":"11/12/2016",
  "STARTTIME":"03:06:50 PM",
  "ITEMNAME":"KBand",
  "ITEMCODE":"KB2541",
  "ITEMSKUNAME":"Band",
  "ITEMSKUCODE":"BT102",
  "SALESRATE":100.0,
  "PURCHASERATE":5.0,
  "DOE":"~",
  "STOCKQTY":2.0,
  "PHYSICALQTY":1.0
}
]

我需要获取PHYSICALQTY的值并在alert中显示它。我是jquery / javascript的新手，所以任何帮助都会受到赞赏。

Answer 1

您可以通过点表示法在js中像普通对象一样访问json。

var json = {"STOCKQTY":2.0,"PHYSICALQTY":1.0};

console.log(json.PHYSICALQTY);

如果你把这个json保存在另一个对象下你需要更深入，例如。

var response = {AlreadySaved: [{"STOCKQTY":2.0,"PHYSICALQTY":1.0}] };

console.log(response.AlreadySaved[0].PHYSICALQTY);

请记住，在某些情况下，您可能将json（例如来自响应）视为字符串而非对象。

console.log(typeof someJson); //string

在这种情况下，您需要将此字符串解析为json

var json = JSON.parse(someJsonAsString);

快乐的黑客攻击！

Answer 2

您可以使用private void Form1_Load(object sender, EventArgs e) { foreach (Control c in this.Controls) { btn = c as Button; { if (btn == null) continue; c.MouseWheel += c_MouseWheel; } } } private void c_MouseWheel(object sender, MouseEventArgs e) { TabControl tabControl = sender as TabControl; if (tabControl != null) { if (e.Delta < 0) { tabControl.Size = new Size(-2, -2); } else { tabControl.Size = new Size(+2, +2); }

json[0].PHYSICALQTY

var json = [{
  "SNO": 1,
  "SNUMBER": "827",
  "STARTDATE": "11/12/2016",
  "STARTTIME": "03:06:50 PM",
  "ITEMNAME": "KBand",
  "ITEMCODE": "KB2541",
  "ITEMSKUNAME": "Band",
  "ITEMSKUCODE": "BT102",
  "SALESRATE": 100.0,
  "PURCHASERATE": 5.0,
  "DOE": "~",
  "STOCKQTY": 2.0,
  "PHYSICALQTY": 1.0
}];

document.getElementById('id1').innerHTML=json[0].PHYSICALQTY;

Answer 3

这不是json对象。

JSON：

foreach($entities as entity)
{
    $em->flush();
}

在这种情况下，您可以获得您的财产：警报（AlreadySaved [0] .PHYSICALQTY）;

Answer 4

您可以解析它，然后获取值。当然，如果你收到这个就像一个字符串。

2-27 17:34:32.461 4910-4910/com.crm.mail I/MCOperationQueue.cpp: trying to quit 0xb4a07c00
12-27 17:34:32.462 4910-4934/com.crm.mail I/MCOperationQueue.cpp: stopping 0xb4a07c00
12-27 17:34:32.462 4910-4910/com.crm.mail I/MCOperationQueue.cpp: thread stopped 0xb4a07c00
12-27 17:34:32.462 4910-4934/com.crm.mail I/MCOperationQueue.cpp: cleanup thread 0xb4a07c00

Answer 5

您的JSON对象无效，您可以在http://jsonlint.com/

查看

将其设置为

之后

var AlreadySaved =[{"SNO":1,"SNUMBER":"827","STARTDATE":"11/12/2016","STARTTIME":"03:06:50 PM","ITEMNAME":"KBand","ITEMCODE":"KB2541","ITEMSKUNAME":"Band","ITEMSKUCODE":"BT102","SALESRATE":100.0,"PURCHASERATE":5.0,"DOE":"~","STOCKQTY":2.0,"PHYSICALQTY":1.0}] ;

您可以通过AlreadySaved[0]["PHYSICALQTY"]

访问它

Answer 6

首先你必须像这样序列化你的对象;

var json_data = JSON.parse(AlreadySaved);

如果您知道json_data中的特定数据，则可以使用索引编号进行调用;

var result= json_data[0]["PHYSICALQTY"];

或者你可以找到你想要的任何东西，你可以找到foreach;

for(var item in json_data) {
   alert(item["PHYSICALQTY"].value);
}

Answer 7

请试试这个：

//In case you are getting this from ajax request put "returnObject.Json_Variable" instead of "Json_Variable"
var obj = (JSON.parse("Json_Variable"));
var resultPHYSICALQTY=obj.PHYSICALQTY);

如何使用javascript / jquery访问json数组的元素？

7 个答案: