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我是任何正则表达式的初学者。我需要您的帮助/指点来解决问题。我有一个如下所示的 JSON 文件。

JSON格式

{"record-type":"int-stats","time":1389309548046925,"host-id":"a.b.c.d","port":"ab-0/0/44","latency":108992}
{"record-type":"int-stats","time":1389309548046925,"host-id":"x.x.x.x","port":"ab-0/0/45","latency":36940}
{"record-type":"int-stats","time":1389309548046925,"host-id":"x.x.x.x","port":"ab-0/0/46","latency":11315}
{"record-type":"int-stats","time":1389309548046925,"host-id":"x.x.x.x","port":"ab-0/0/47","latency":102668}
{"record-type":"int-stats","time":1389309548046925,"host-id":"x.x.x.x","port":"ab-0/0/9","latency":347776}

{"record-type":"int-stats","time":1389309548041555,"host-id":"a.b.c.d","port":"ab-0/0/44","latency":108992}
{"record-type":"int-stats","time":1389309548041554,"host-id":"x.x.x.x","port":"ab-0/0/45","latency":36940}
{"record-type":"int-stats","time":1389309548046151,"host-id":"x.x.x.x","port":"ab-0/0/46","latency":11315}
{"record-type":"int-stats","time":1389309548041667,"host-id":"x.x.x.x","port":"ab-0/0/47","latency":102668}
{"record-type":"int-stats","time":1389309548042626,"host-id":"x.x.x.x","port":"ab-0/0/9","latency":347776}

{"record-type":"int-stats","time":1389309548035666,"host-id":"a.b.c.d","port":"ab-0/0/44","latency":108992}
{"record-type":"int-stats","time":1389309548035635,"host-id":"x.x.x.x","port":"ab-0/0/45","latency":36940}
{"record-type":"int-stats","time":1389309548042255,"host-id":"x.x.x.x","port":"ab-0/0/46","latency":11315}
{"record-type":"int-stats","time":1389309548041715,"host-id":"x.x.x.x","port":"ab-0/0/47","latency":102668}
{"record-type":"int-stats","time":1389309548046161,"host-id":"x.x.x.x","port":"ab-0/0/9","latency":347776}

{"record-type":"int-stats","time":1389309548023422,"host-id":"a.b.c.d","port":"ab-0/0/44","latency":108992}
{"record-type":"int-stats","time":1389309548041617,"host-id":"x.x.x.x","port":"ab-0/0/45","latency":36940}
{"record-type":"int-stats","time":1389309548046676,"host-id":"x.x.x.x","port":"ab-0/0/46","latency":11315}
{"record-type":"int-stats","time":1389309548045675,"host-id":"x.x.x.x","port":"ab-0/0/47","latency":102668}
{"record-type":"int-stats","time":1389309548046172,"host-id":"x.x.x.x","port":"ab-0/0/9","latency":347776}

{"record-type":"int-stats","time":1389309548034534,"host-id":"a.b.c.d","port":"ab-0/0/44","latency":108992}
{"record-type":"int-stats","time":1389309548012345,"host-id":"x.x.x.x","port":"ab-0/0/45","latency":36940}
{"record-type":"int-stats","time":1389309548025232,"host-id":"x.x.x.x","port":"ab-0/0/46","latency":11315}
{"record-type":"int-stats","time":1389309548023423,"host-id":"x.x.x.x","port":"ab-0/0/47","latency":102668}
{"record-type":"int-stats","time":1389309548252352,"host-id":"x.x.x.x","port":"ab-0/0/9","latency":347776}

我需要提取"port":"ab-0/0/44"并"time"与该端口关联。我正在尝试计算任何两次此类事件的时间差，即第一次出现->"time":1389309548046925 "port":"ab-0/0/44"第二次出现-> "time":1389309548041555 "port":"ab-0/0/44"。计算的时间差必须存储在一个变量中。我尝试使用这样的正则表达式/\"time\":\\d+\.*\"port\":\".b-0\/0\/44\"/。任何帮助表示赞赏。提前致谢！

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1 回答 1

2

使用JSON模块。这很简单。

use strict;
use warnings;
use JSON;

while (<>) {
    /\S/ or next;
    my $data = decode_json($_);
    print "port -> $data->{port}\n";
    print "time -> $data->{time}\n";
}

使用您的数据，我得到如下输出：

port -> ab-0/0/44
time -> 1389309548046925
port -> ab-0/0/45
time -> 1389309548046925
... etc

我不确定你想如何计算你的时间，但我认为做算术是你自己可以算出的最好的东西。

于 2014-02-19T22:36:50.383 回答