Question

我是RegExp的新手，但做了一些基础教程。从下面，我需要能够提取以下内容。您对此的帮助将增强我对RegExp的理解。

提取字符串：

2016-02-17 19:59:18,182 GMT [transaction-Id=47ad8e96-1db8-4b41-85e5-9256fca485ab] [request_uri=/mydevice/2232234] [] INFO Response:{"executionTimeInMillis":54,"transactionId":"3191569800","success":false,"internalTransactionId":"47ad8e96-1db8-4b41-85e5-9256fca485ab","operationResults":[{"operation":"addDevice","code":"409","message":"Cannot add device"}]}

要提取的输出字符串值：

47ad8e96-1db8-4b41-85e5-9256fca485ab
22xs32234
{"operation":"addDevice","code":"409","message":"Cannot add device"}

Answer 1

transaction-Id=(.*?)].*?request_uri=(.*?)].*?"operationResults":[(.*?)]

提取$ 0，$ 1，$ 2

Answer 2

Perl代码：

    #!/usr/bin/perl

    use strict;
    use warnings;

    my $string = '2016-02-17 19:59:18,182 GMT [transaction-Id=47ad8e96-1db8-    4b41-85e5-9256fca485ab] [request_uri=/mydevice/2232234] [] INFO Response:{"executionTimeInMillis":54,"transactionId":"3191569800","success":false,"internalTransactionId":"47ad8e96-1db8-4b41-85e5-9256fca485ab","operationResults":[{"operation":"addDevice","code":"409","message":"Cannot add device"}]}';


    if($string =~ /(?:transaction\-Id=)(.*)\] \[(?:request_uri=\/mydevice\/)(.*)\] \[.*(?:operationResults.:\[)(.*)\]\}$/ig){
       print "$1\n$2\n$3\n";
    }
    else{
        print "no match\n";
    }

Answer 3

(?<=[\/=\[])([^\/=\[]+)(?=\])如果你想参考比赛，(?<=[\/=\[])[^\/=\[]+(?=\])如果不这样做。

“22xs32234”预期结果是否正确？由于“2232234”是原始字符串。如果是，那么这些表达式还没有准备好。

DEMO

另一个运行步骤较少的解决方案（更快，但想通了它会返回你不想要的整个URI）： (?<=transaction-Id=|request_uri=|operationResults.:\[)[^\]]+

DEMO

最后一个固定版本（比第一个更快）： (?<=transaction-Id=|request_uri=|operationResults.:\[)(?:\/[^\]]+\/)?([^\]]+)

DEMO

特定搜索模式RegExp

3 个答案: