如何解析具有多个值的json数据？

Question

我有一个多维 json 。我想解析它以获取值。

var json='{"Links":[],"RequestedObject":{"FieldContents":{"21514":{"Type":1,"IsError":false,"Value":"Saneen","FieldId":21514,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21516":{"Type":1,"IsError":false,"Value":"English","FieldId":21516,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21517":{"Type":1,"IsError":false,"Value":"Malayalam","FieldId":21517,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21515":{"Type":2,"IsError":false,"Value":26.0,"FieldId":21515,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21518":{"Type":2,"IsError":false,"Value":80.0,"FieldId":21518,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21519":{"Type":2,"IsError":false,"Value":40.0,"FieldId":21519,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21520":{"Type":4,"IsError":false,"Value":{"ValuesListIds":[72639],"OtherText":null},"FieldId":21520,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21523":{"Type":3,"IsError":false,"Value":"2017-03-29T00:00:00","FieldId":21523,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21510":{"Type":6,"FieldId":21510,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21511":{"Type":21,"FieldId":21511,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21512":{"Type":22,"FieldId":21512,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21521":{"Type":11,"Value":null,"FieldId":21521,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}}}},"IsSuccessful":true,"ValidationMessages":[]}';

我尝试过 JSON.parse ，但没​​有运气。

Answer 1

这是JSON.parse()和here is document for that的简单示例：

var json='{"Links":[],"RequestedObject":{"FieldContents":{"21514":{"Type":1,"IsError":false,"Value":"Saneen","FieldId":21514,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21516":{"Type":1,"IsError":false,"Value":"English","FieldId":21516,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21517":{"Type":1,"IsError":false,"Value":"Malayalam","FieldId":21517,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21515":{"Type":2,"IsError":false,"Value":26.0,"FieldId":21515,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21518":{"Type":2,"IsError":false,"Value":80.0,"FieldId":21518,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21519":{"Type":2,"IsError":false,"Value":40.0,"FieldId":21519,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21520":{"Type":4,"IsError":false,"Value":{"ValuesListIds":[72639],"OtherText":null},"FieldId":21520,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21523":{"Type":3,"IsError":false,"Value":"2017-03-29T00:00:00","FieldId":21523,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21510":{"Type":6,"FieldId":21510,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21511":{"Type":21,"FieldId":21511,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21512":{"Type":22,"FieldId":21512,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}},"21521":{"Type":11,"Value":null,"FieldId":21521,"UpdateInformation":{"CreateDate":null,"UpdateDate":null,"CreateLogin":null,"UpdateLogin":null}}}},"IsSuccessful":true,"ValidationMessages":[]}';

var obj = JSON.parse(json);
console.log(obj);

// retrieve particular fields

var newFieldContents = {};

for(var key in obj['RequestedObject']['FieldContents']){
  var o = obj['RequestedObject']['FieldContents'][key];
  newFieldContents[key] = {
    Value: o['Value'],
    FieldId: o['FieldId']
  }
}

console.log(newFieldContents);

更新

添加如何检索特定字段。