如何使用Javascript解析多層次json/jquery

我對JSON非常陌生，一直在解析多層次的JSON數組，我想使用javascript或jquery解析它。從我想application id的JSON，application description & Product description如何使用Javascript解析多層次json/jquery

[ 
    { 
     "roadMapData": [ 
      { 
       "applicationDetail": [ 
        { 
         "applicationDescr": "R25updated-R25updated", 
         "applicationId": 352 
        } 
       ] 
      }, 
      { 
       "productSubGrupDetail": [ 
        { 
         "productGroupId": 271, 
         "productSubGroupDes": "TEST123-TEST1234" 
        } 
       ] 
      }, 
      { 
       "productSubGrupDetail": [ 
        { 
         "productGroupId": 278, 
         "productSubGroupDes": "ggg-hhhh" 
        } 
       ] 
      } 
     ] 
    }, 
    { 
     "roadMapData": [ 
      { 
       "applicationDetail": [ 
        { 
         "applicationDescr": "R25updated-R25updated", 
         "applicationId": 352 
        } 
       ] 
      }, 
      { 
       "productSubGrupDetail": [ 
        { 
         "productGroupId": 271, 
         "productSubGroupDes": "TEST123-TEST1234" 
        } 
       ] 
      }, 
      { 
       "productSubGrupDetail": [ 
        { 
         "productGroupId": 278, 
         "productSubGroupDes": "ggg-hhhh1" 
        } 
       ] 
      } 
     ] 
    } 
]

感謝提前:)

來源

2014-04-27 Gaurav Gagan

[JSON對象的Javascript多級陣列 - 如何訪問鍵 - 值對在第二級或更高]（HTTP：// stackoverflow.com/questions/1650090/javascript-multi-level-array-of-json-objects-how-to-access-key-value-pair-in-s）將幫助你 – Satpal

它不會奏效，你能請提出更多建議 –

這裏是Demo

檢查jQuery.parseJSON

var jsonObj = jQuery.parseJSON(jsonString); 
for (i = 0; i < jsonObj.length; i++) { 
    var roadMapData = jsonObj[i].roadMapData; 
    var applicationDetail = roadMapData[0].applicationDetail; //First Object 
    var productSubGrupDetail1 = roadMapData[1].productSubGrupDetail; //Second Object 
    var productSubGrupDetail2 = roadMapData[2].productSubGrupDetail; //Third Object 
    console.log(applicationDetail[0].applicationDescr); //applicationDetail's First Object 
    console.log(productSubGrupDetail1[0].productGroupId); //productSubGrupDetail1's First Object 
    console.log(productSubGrupDetail2[0].productSubGroupDes); //productSubGrupDetail2's First Object 
}

來源

2014-04-27 13:02:19 VenomVendor

如果數據最初呈現JSON（字符串），你需要先用JSON.parse(json)解析成JavaScript對象。然後，您可以使用對象點符號訪問任何屬性。如果您不熟悉JavaScript中的對象，請檢查this article。

來源

2014-04-27 12:29:08 Roman

如何使用Javascript解析多層次json/jquery

回答

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