Question

我可以知道如何设计过滤器以使一个字段具有多个匹配项吗？这是一个示例，我需要调整以下段落中的所有upperlinkVolume，以汇总所有上行链路量。

如何使用Python正则表达式来做到这一点？

{extensionType：{1}长度：{48} serviceList：{：{serviceCode：{2000}上行链路容量：{268266}下行链路容量：{11761667}用法持续时间：{-}网址：{-} chargerRuleBaseName：{-} ratingGroup ：{-} serviceIdentifier：{-} localSequenceNumber：{-} envelopeStartTime：{-} envelopeEndTime：{-}持续时间：{-} changeTimeTimeZone：{-} noOCSCreditControl：{-} uplinkPacketNum：{-} downlinkPacketNum：{-}} ：{serviceCode：{99}上行链路量：{296}下行链路量：{923}使用时间：{-}网址：{-} chargerRuleBaseName：{-} ratingGroup：{-} serviceIdentifier：{-} localSequenceNumber：{-} envelopeStartTime：{ -} envelopeEndTime：{-}持续时间：{-} changeTimeTimeZone：{-} noOCSCreditControl：{-} uplinkPacketNum：{-} downlinkPacketNum：{-}}}} changeTimeList：{-} recordOpeningTime：{-}持续时间：{-}透明VSA ：{-} cdrType：{-} createTime：{-} chargeType：{-}漫游：{-}个人资料：{-} nsapi：{-} lastActivityTimeUpLink：{-} lastActivityTimeDownLink：{-} zoneId：{-} daylightSavingTime ：{-} localTimeZone：{-} sgsnChange：{-}会话ID：{-} recordOpeningTimeZ一个：{-} saRecordChangeTimeZone：{-} saRecordChangeTimeZone：{-} acctSessionId：{-} acctTerminateCause：{-}} {extensionType：{1}长度：{144} serviceList：{：{serviceCode：{281}上行链路容量：{4021}下行链路容量：{4125}用法持续时间：{-}网址：{-} chargerRuleBaseName：{-} ratingGroup：{- } serviceIdentifier：{-} localSequenceNumber：{-} envelopeStartTime：{-} envelopeEndTime：{-}持续时间：{-} changeTimeTimeZone：{-} noOCSCreditControl：{-} uplinkPacketNum：{-} downlinkPacketNum：{-}}：{serviceCode ：{2000}上行容量：{266097}下行容量：{9213530}使用期限：{-}网址：{-} chargerRuleBaseName：{-} ratingGroup：{-} serviceIdentifier：{-} localSequenceNumber：{-} envelopeStartTime：{-} envelopeEndTime ：{-}持续时间：{-} changeTimeTimeZone：{-} noOCSCreditControl：{-}上行链路包数量：{-}下行链路包数量：{-}}：{serviceCode：{99}上行链路数量：{1129}下行链路数量：{2733}使用时间：{ -}网址：{-} chargeRuleBaseName：{-} ratingGroup：{-} serviceIdentifier：{-} localSequenceNumber：{-} envelopeStartTime：{-} envelopeEndTime：{-}持续时间：{-} changeTimeTimeZone：{-} noOCSCreditControl：{ -} uplinkPacketNum：{-} downlinkPacke tNum：{-}}：{服务代码：{281}上行容量：{104}下行容量：{135}使用时间：{-}网址：{-} chargerRuleBaseName：{-} ratingGroup：{-} serviceIdentifier：{-} localSequenceNumber： {-} envelopeStartTime：{-} envelopeEndTime：{-}持续时间：{-} changeTimeTimeZone：{-} noOCSCreditControl：{-} uplinkPacketNum：{-} downlinkPacketNum：{-}}：{serviceCode：{2000} uploadVolume：{260058 }下行音量：{11145532}使用时间：{-}网址：{-} chargerRuleBaseName：{-} ratingGroup：{-} serviceIdentifier：{-} localSequenceNumber：{-} envelopeStartTime：{-} envelopeEndTime：{-}持续时间：{- } changeTimeTimeZone：{-} noOCSCreditControl：{-} uplinkPacketNum：{-} downlinkPacketNum：{-}}：{serviceCode：{99}上行链路量：{294}下行链路量：{811}用法持续时间：{-}网址：{-} chargerRuleBaseName ：{-} ratingGroup：{-} serviceIdentifier：{-} localSequenceNumber：{-} envelopeStartTime：{-} envelopeEndTime：{-}持续时间：{-} changeTimeTimeZone：{-} noOCSCreditControl：{-} uplinkPacketNum：{-} downlinkPacketNum ：{-}}} changeTimeList：{-}记录开启时间：{-}持续时间：{-}透明VSA：{-} cdrType：{-} createTime：{-} chargeingType：{-}漫游：{-}配置文件：{-} nsapi：{-} lastActivityTimeUpLink：{-} lastActivityTimeDownLink：{-} zoneId：{-} daylightSavingTime：{-} localTimeZone：{-} sgsnChange：{-} sessionID：{-} recordOpeningTimeZone：{-} saRecordChangeTime：{-} saRecordChangeTimeZone：{-} acctSessionId：{-} acctTerminateCause：{-}}

Answer 1

此表达式查找所有上行链路容量字段，并将找到的字段的值放在一个组中。样本中不包含等于“-”的值。

r"uplinkVolume:{(\d+)}"

使用示例：

import re

json_text = "YOUR_JSON_TEXT_FROM_THE_EXAMPLE_ABOVE"
field_values = re.findall(r"uplinkVolume:{(\d+)}", json_text)
# field_values = ['268266', '296', '4021', '266097', '1129', '104', '260058', '294']

Answer 2

使用此：

string = '{ extensionType:{1} length:{48} serviceList:{:{serviceCode:{2000} uplinkVolume:{268266} downlinkVolume:{11761667} usageduration:{-} url:{-} chargingRuleBaseName:{-} ratingGroup:{-} serviceIdentifier:{-} localSequenceNumber:{-} envelopeStartTime:{-} envelopeEndTime:{-} duration:{-} changeTimeTimeZone:{-} noOCSCreditControl:{-} uplinkPacketNum:{-} downlinkPacketNum:{-} } :{serviceCode:{99} uplinkVolume:{296} downlinkVolume:{923} usageduration:{-} url:{-} chargingRuleBaseName:{-} ratingGroup:{-} serviceIdentifier:{-} localSequenceNumber:{-} envelopeStartTime:{-} envelopeEndTime:{-} duration:{-} changeTimeTimeZone:{-} noOCSCreditControl:{-} uplinkPacketNum:{-} downlinkPacketNum:{-} } } changeTimeList:{-} recordOpeningTime:{-} duration:{-} transparentVSA:{-} cdrType:{-} createTime:{-} chargingType:{-} roaming:{-} profile:{-} nsapi:{-} lastActivityTimeUpLink:{-} lastActivityTimeDownLink:{-} zoneId:{-} daylightSavingTime:{-} localTimeZone:{-} sgsnChange:{-} sessionID:{-} recordOpeningTimeZone:{-} saRecordChangeTime:{-} saRecordChangeTimeZone:{-} acctSessionId:{-} acctTerminateCause:{-} } { extensionType:{1} length:{144} serviceList:{:{serviceCode:{281} uplinkVolume:{4021} downlinkVolume:{4125} usageduration:{-} url:{-} chargingRuleBaseName:{-} ratingGroup:{-} serviceIdentifier:{-} localSequenceNumber:{-} envelopeStartTime:{-} envelopeEndTime:{-} duration:{-} changeTimeTimeZone:{-} noOCSCreditControl:{-} uplinkPacketNum:{-} downlinkPacketNum:{-} } :{serviceCode:{2000} uplinkVolume:{266097} downlinkVolume:{9213530} usageduration:{-} url:{-} chargingRuleBaseName:{-} ratingGroup:{-} serviceIdentifier:{-} localSequenceNumber:{-} envelopeStartTime:{-} envelopeEndTime:{-} duration:{-} changeTimeTimeZone:{-} noOCSCreditControl:{-} uplinkPacketNum:{-} downlinkPacketNum:{-} } :{serviceCode:{99} uplinkVolume:{1129} downlinkVolume:{2733} usageduration:{-} url:{-} chargingRuleBaseName:{-} ratingGroup:{-} serviceIdentifier:{-} localSequenceNumber:{-} envelopeStartTime:{-} envelopeEndTime:{-} duration:{-} changeTimeTimeZone:{-} noOCSCreditControl:{-} uplinkPacketNum:{-} downlinkPacketNum:{-} } :{serviceCode:{281} uplinkVolume:{104} downlinkVolume:{135} usageduration:{-} url:{-} chargingRuleBaseName:{-} ratingGroup:{-} serviceIdentifier:{-} localSequenceNumber:{-} envelopeStartTime:{-} envelopeEndTime:{-} duration:{-} changeTimeTimeZone:{-} noOCSCreditControl:{-} uplinkPacketNum:{-} downlinkPacketNum:{-} } :{serviceCode:{2000} uplinkVolume:{260058} downlinkVolume:{11145532} usageduration:{-} url:{-} chargingRuleBaseName:{-} ratingGroup:{-} serviceIdentifier:{-} localSequenceNumber:{-} envelopeStartTime:{-} envelopeEndTime:{-} duration:{-} changeTimeTimeZone:{-} noOCSCreditControl:{-} uplinkPacketNum:{-} downlinkPacketNum:{-} } :{serviceCode:{99} uplinkVolume:{294} downlinkVolume:{811} usageduration:{-} url:{-} chargingRuleBaseName:{-} ratingGroup:{-} serviceIdentifier:{-} localSequenceNumber:{-} envelopeStartTime:{-} envelopeEndTime:{-} duration:{-} changeTimeTimeZone:{-} noOCSCreditControl:{-} uplinkPacketNum:{-} downlinkPacketNum:{-} } } changeTimeList:{-} recordOpeningTime:{-} duration:{-} transparentVSA:{-} cdrType:{-} createTime:{-} chargingType:{-} roaming:{-} profile:{-} nsapi:{-} lastActivityTimeUpLink:{-} lastActivityTimeDownLink:{-} zoneId:{-} daylightSavingTime:{-} localTimeZone:{-} sgsnChange:{-} sessionID:{-} recordOpeningTimeZone:{-} saRecordChangeTime:{-} saRecordChangeTimeZone:{-} acctSessionId:{-} acctTerminateCause:{-} }'

import re

regex = re.compile(r'uplinkVolume:{.*?}') # ? makes it not greedy and . will mach anything in curly brackets except new line
filtered_string = re.findall(regex, string)
print(filtered_string)

输出：

C:\Users\Desktop>py x.py
['uplinkVolume:{268266}', 'uplinkVolume:{296}', 'uplinkVolume:{4021}', 'uplinkVolume:{266097}', 'uplinkVolume:{1129}', 'uplinkVolume:{104}', 'uplinkVolume:{260058}', 'uplinkVolume:{294}']

如何使用python正则表达式过滤多个文件

2 个答案: