Javascript：解析JSON對象

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我想分析以下數據，這是來自服務器的對象列表。這是我有我的數據使用JSON.stringify(data.d);後：Javascript：解析JSON對象

"[{"__type":"EditGridDemo.CellData","empProperty":"SSN","empValue":"a","isValid":false,"comments":"Reason of what went wrong"},{"__type":"EditGridDemo.CellData","empProperty":"Birth_Date","empValue":"","isValid":false,"comments":"Reason of what went wrong"},{"__type":"EditGridDemo.CellData","empProperty":"Department_Name","empValue":"","isValid":false,"comments":"Reason of what went wrong"},{"__type":"EditGridDemo.CellData","empProperty":"email","empValue":"","isValid":false,"comments":"Reason of what went wrong"},{"__type":"EditGridDemo.CellData","empProperty":"First_Name","empValue":"","isValid":false,"comments":"Reason of what went wrong"},{"__type":"EditGridDemo.CellData","empProperty":"Sex","empValue":"","isValid":false,"comments":"Reason of what went wrong"},{"__type":"EditGridDemo.CellData","empProperty":"Strata_ID","empValue":null,"isValid":false,"comments":"Reason of what went wrong"},{"__type":"EditGridDemo.CellData","empProperty":"SSN","empValue":"b","isValid":false,"comments":"Reason of what went wrong"},{"__type":"EditGridDemo.CellData","empProperty":"Birth_Date","empValue":"","isValid":false,"comments":"Reason of what went wrong"},{"__type":"EditGridDemo.CellData","empProperty":"Department_Name","empValue":"","isValid":false,"comments":"Reason of what went wrong"},{"__type":"EditGridDemo.CellData","empProperty":"email","empValue":"","isValid":false,"comments":"Reason of what went wrong"},{"__type":"EditGridDemo.CellData","empProperty":"First_Name","empValue":"","isValid":false,"comments":"Reason of what went wrong"},{"__type":"EditGridDemo.CellData","empProperty":"Sex","empValue":"","isValid":false,"comments":"Reason of what went wrong"},  
{"__type":"EditGridDemo.CellData","empProperty":"Strata_ID","empValue":null,"isValid":false,"comments":"Reason of what went wrong"}]"

這是CellData，其中包括列表empProperty，empValue，isValid方法，評價其attributes..I不能夠訪問這些屬性JS。

來源

2013-03-12 faizanjehangir

解析它會對其進行字符串化。你爲什麼首先把它串起來？ – Quentin 2013-03-12 13:22:16

以前，我在做$ .parseJSON（data.d），它給了undefined .. – faizanjehangir 2013-03-12 13:23:28

你爲什麼要解析已經是JavaScript對象的東西？只需使用'data.d'。 – Quentin 2013-03-12 13:24:01

剛開始使用data.d [I] .empProperty並且如在一些評論提到data.d [I] .empValue i是陣列的索引。不要將它串起來，它已經被解析成了一個對象。

閱讀關於JSON Here

來源

2013-03-12 13:48:34 fahadash

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該結構是一個對象數組。所以，你可以簡單地通過索引來訪問每個元素：

var arr = JSON.stringify(data.d); 
var item = arr[0];

然後你可以用不同的方式來訪問每個屬性：

empValue = item.empValue; //returns "a" 
empProperty = item["empProperty"]; //returns "SSN"

例here。

來源

2013-03-12 13:25:26

請添加評論，除了你的downvote – 2013-03-12 13:29:21

我沒有downvote，但我認爲'var arr = JSON.stringify（data.d）;'將在arr中設置data.d的字符串表示，所以'arr [0 ]'只會返回該字符串的第一個字符。 – Jacopofar 2013-03-12 13:34:36

@Jackopo：請看看演示。它工作正常。 – 2013-03-12 13:50:55

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我引述以下鏈接部分：JSON

爲了抵禦這，應使用JSON解析器。 JSON解析器將只識別JSON文本，拒絕所有腳本。

var jsonData = JSON.stringify(data.d); 
var myObject = JSON.parse(jsonData);

來源

2013-03-12 13:29:24

正如Quentin在上面的評論中提到的那樣，爲什麼我會解析一個對象，它已經是一個JS對象，轉換成JSON ... – faizanjehangir 2013-03-12 13:31:35

你對對象進行了stringify，把它放到一個對象的方式是：解析 – 2013-03-12 13:35:40

但是'data .d'是**輸入**來stringify，而不是輸出！ – Quentin 2013-03-12 13:40:11

Javascript：解析JSON對象

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