将JSON解析为U-SQL，然后转换为csv

我正在尝试将一些JSON格式的遥测数据转换为CSV格式，然后使用U-SQL将其写入文件

问题是一些JSON键值中有句点，因此当我执行SELECT操作时，U-SQL无法识别它们。当我检查输出文件时，我看到的只是“p1”的值。如何在脚本中表示JSON键名称的名称，以便识别它们。提前感谢您的帮助

代码：

JSON:

---

{“EventInfo.Source”：“JS_default_Source”，“EventInfo.Sequence”：“1”，“EventInfo.Name”：“daysofweek”，“EventInfo.Time”：“2018-01-25T21:09:36.779Z”，“EventInfo.SdkVersion”：“ACT-Web-JS-2.6.0”，“AppInfo.Language”：“en”，“UserInfo.Language”：“en-US”，“UserInfo.TimeZone”：-08:00”，“DeviceInfo.BrowserName”：“Chrome”，“DeviceInfo.BrowserVersion”：“63.0.3239.132”，“DeviceInfo.OsName”：“Mac OS X”，“DeviceInfo.OsVersion”：“10”，“p1”：“V1”，“PipelineInfo.IngestionTime”：“2018-01-25T21:09:33.9930000Z”，“PipelineInfo.ClientCountry”：“CA”，“PipelineInfo.IngestionPath”：“FastPath”，“EventInfo.BaseType”：“自定义”，“EventInfo.IngestionTime”：“2018-01-25T21:09:33.9930000Z”}我用单引号和单方括号实现了这一点，例如

@columnized = SELECT 
            json["['EventInfo.Source']"] AS EventInfoSource,
...

完整代码：

@columnized = SELECT 
            json["['EventInfo.Source']"] AS EventInfoSource,
            json["['EventInfo.InitId']"] AS EventInfoInitId,
            json["['EventInfo.Sequence']"] AS EventInfoSequence,
            json["['EventInfo.Name']"] AS EventInfoName,
            json["['EventInfo.Time']"] AS EventInfoTime,
            json["['EventInfo.SdkVersion']"] AS EventInfoSdkVersion,
            json["['AppInfo.Language']"] AS AppInfoLanguage,
            json["['UserInfo.Language']"] AS UserInfoLanguage,
            json["['DeviceInfo.BrowserName']"] AS DeviceInfoBrowswerName,
            json["['DeviceInfo.BrowserVersion']"] AS BrowswerVersion,
            json["['DeviceInfo.OsName']"] AS DeviceInfoOsName,
            json["['DeviceInfo.OsVersion']"] AS DeviceInfoOsVersion,
            json["['DeviceInfo.Id']"] AS DeviceInfoId,
            json["p1"] AS p1,
            json["['PipelineInfo.AccountId']"] AS PipelineInfoAccountId, 
            json["['PipelineInfo.IngestionTime']"] AS PipelineInfoIngestionTime, 
            json["['PipelineInfo.ClientIp']"] AS PipelineInfoClientIp,
            json["['PipelineInfo.ClientCountry']"] AS PipelineInfoClientCountry,
            json["['PipelineInfo.IngestionPath']"] AS PipelineInfoIngestionPath,
            json["['AppInfo.Id']"] AS AppInfoId,
            json["['EventInfo.Id']"] AS EventInfoId,
            json["['EventInfo.BaseType']"] AS EventInfoBaseType,
            json["['EventINfo.IngestionTime']"] AS EventINfoIngestionTime
    FROM @jsonify;

我的结果：

---

您有JSON文件的示例吗？代码本身没有帮助。@MichaelRys感谢您的评论。我已经添加了原始JSON文件的一部分。由于数据机密性，无法发布整个内容。我的问题是：我是否需要特殊语法来避开JSON键值中的句点？我之所以问这个问题，是因为输出文件仅包含h作为“p1”的值“，这是唯一一个没有句点的键，所以我猜这就是问题所在。您必须引用包含空格的名称，如wBob显示。我知道您的问题已经解决。但您能否围绕这个问题分享实时需求。它帮助我了解U-SQL的真正用法。我还有JSON格式的遥测数据。在将其发送到azure data lake之前，我必须将其转换为文件吗？谢谢，这很有效！还有一个问题：我正试图保持输出文件与输入文件的结构相同。当输入文件字符串是动态的（如原问题中所述）时，您知道如何陈述输出文件字符串以使其与输入文件字符串匹配吗？感谢所有的帮助这是一项经常被要求的功能，并且在这里的反馈列表中，同时还显示了Powershell的解决方法：在data lake engine处理这些功能之前，是否必须转换为CSV？我不能直接在azure data lake中处理所有传入的json遥测吗？

@columnized = SELECT 
            json["['EventInfo.Source']"] AS EventInfoSource,
            json["['EventInfo.InitId']"] AS EventInfoInitId,
            json["['EventInfo.Sequence']"] AS EventInfoSequence,
            json["['EventInfo.Name']"] AS EventInfoName,
            json["['EventInfo.Time']"] AS EventInfoTime,
            json["['EventInfo.SdkVersion']"] AS EventInfoSdkVersion,
            json["['AppInfo.Language']"] AS AppInfoLanguage,
            json["['UserInfo.Language']"] AS UserInfoLanguage,
            json["['DeviceInfo.BrowserName']"] AS DeviceInfoBrowswerName,
            json["['DeviceInfo.BrowserVersion']"] AS BrowswerVersion,
            json["['DeviceInfo.OsName']"] AS DeviceInfoOsName,
            json["['DeviceInfo.OsVersion']"] AS DeviceInfoOsVersion,
            json["['DeviceInfo.Id']"] AS DeviceInfoId,
            json["p1"] AS p1,
            json["['PipelineInfo.AccountId']"] AS PipelineInfoAccountId, 
            json["['PipelineInfo.IngestionTime']"] AS PipelineInfoIngestionTime, 
            json["['PipelineInfo.ClientIp']"] AS PipelineInfoClientIp,
            json["['PipelineInfo.ClientCountry']"] AS PipelineInfoClientCountry,
            json["['PipelineInfo.IngestionPath']"] AS PipelineInfoIngestionPath,
            json["['AppInfo.Id']"] AS AppInfoId,
            json["['EventInfo.Id']"] AS EventInfoId,
            json["['EventInfo.BaseType']"] AS EventInfoBaseType,
            json["['EventINfo.IngestionTime']"] AS EventINfoIngestionTime
    FROM @jsonify;