arrays - 如何通过python从json数组中获取数据

Question

我有以下 json 对象数据，如何使用 python 来获取"BuildId"第二个"ftp" （注意：它在"ArchiveLocation"）值？

     {"BuildId":"4c53575f-36f48a7f1f37",
      "EventId":1,
      "ArchiveLocations":
      [
         {
            "archive_server":"CA",
            "ftp":"ftp://ABC1.com/2011_V2/2011.4.103.002",
            "dfs":"\\\\ABD\\dfs\\Department\\2011.4.103.002"
         },
         {
            "archive_server":"CT",
            "ftp":"ftp://ABC2.com/2011_V2/2011.4.103.002",
            "dfs":"\\\\ABD.com\\dfs\\Department\\2011.4.103.002"
         }
      ]

   }

Answer 1

你可以这样做：

data =   {
      "BuildId":"4c53575f-36f48a7f1f37",
      "EventId":1,
      "ArchiveLocations":
      [
         {
            "archive_server":"CA",
            "ftp":"ftp://ABC1.com/2011_V2/2011.4.103.002",
            "dfs":"\\\\ABD\\dfs\\Department\\2011.4.103.002"
         },
         {
            "archive_server":"CT",
            "ftp":"ftp://ABC2.com/2011_V2/2011.4.103.002",
            "dfs":"\\\\ABD.com\\dfs\\Department\\2011.4.103.002"
         }
      ]

   }

buildid = data['BuildId']
firstserver = data['ArchiveLocations'][0]['archive_server']
secondserver = data['ArchiveLocations'][1]['archive_server']

print buildid, secondserver

这返回4c53575f-36f48a7f1f37 CT

或者，您可以遍历每个键并以这种方式提取值。很难给你一个完整的答案，因为我不知道你的问题的上下文。