Java Regex-匹配tomcat日志文件中的条目

我试图一个接一个地读取每个日志条目。这是日志文件的一部分：

at java.net.Socket.<init>(Socket.java:434)
    at java.net.Socket.<init>(Socket.java:211)
    at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40)
    at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:148)
    at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613)
    ... 31 more
26.03.2018 14:43:57,113| INFO http-nio-8080-exec-10 configService==nullLooking up configuration service on rmi://localhost:1199/ConfigService |com.ase.common.utils.ConfigurationServiceUtils
26.03.2018 14:43:57,113| WARN http-nio-8080-exec-10 Could not connect to services. |com.ase.common.utils.ConfigurationServiceUtils
java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
    java.net.ConnectException: Connection refused
    at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:619)
    at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)
    at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
    at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:342)
    at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source) 

它匹配ok所有条目，但没有stacktrace。我需要如何改进我的正则表达式以获得堆栈跟踪

所以我需要这样做：

Match1 : `26.03.2018 14:43:57,113| INFO http-nio-8080-exec-10 configService==nullLooking up configuration service on rmi://localhost:1199/ConfigService |com.ase.common.utils.ConfigurationServiceUtils` 

Group(1)-> `26.03.2018 14:43:57,113`; Group(2)->`INFO`; Group(3)-> `http-nio-8080-exec-10`; Group(4)->`configService==nullLooking up configuration service on rmi://localhost:1199/ConfigService`; 
Group(5)->`com.ase.common.utils.ConfigurationServiceUtils`

Match2 : `26.03.2018 14:43:57,113| WARN http-nio-8080-exec-10 Could not connect to services. |com.ase.common.utils.ConfigurationServiceUtils
java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
    java.net.ConnectException: Connection refused
    at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:619)
    at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)
    at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
    at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:342)
    at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source) ` 

Group(1)-> `26.03.2018 14:43:57,113`; Group(2)->`WARN`; Group(3)-> `http-nio-8080-exec-10`; Group(4)->`Could not connect to services.`; 
Group(5)->`com.ase.common.utils.ConfigurationServiceUtils`; Group(6)->

    java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
        java.net.ConnectException: Connection refused...

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您应该在正则表达式中使用更具体的捕获组，我将指出：

^(\d+\.\d+\.\d{4}[^|]+)\|\s+(\S+)\s+(\S+)\s+([^|]+)\|(\S+)\s+((?:(?!^\d+\.)[^|])*)

细分：

• ^（\d+\.\d+\.\d{4}[^ |]+）\

  匹配以日期开头的行（字幕组#1）

• \s+（\s+）

  匹配空格并捕获以下非空白字符（CG#2）

• \s+（\s+）

  相同（CG#3）

• \s+（[^ |]+）\\\\\\

  匹配空格和除
  （CG#3）以外的任何内容

• （\S+）\S+

  匹配并捕获后跟空格的非空白字符（CG#4）

• （（？：（？！^\d+\）[^ |]*）

  回火模式，用于检查是否位于应作为下一个匹配开始的行的开头。如果不匹配下一个直接字符（CG#5，可选组）

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准确显示您要匹配的内容（边界是什么）以及是否要捕获内容。编辑我的答案。请检查此感谢！很好！

^(\d+\.\d+\.\d{4}[^|]+)\|\s+(\S+)\s+(\S+)\s+([^|]+)\|(\S+)\s+((?:(?!^\d+\.)[^|])*)