[英]How to add the date timestamp to log4j2 logfiles?
I want to create day dependent logfiles with log4j2
:我想用
log4j2
创建依赖日的日志文件:
<RollingFile name="APP" fileName="application-%d{yyyy-MM-dd}.log" />
Resulting logfile name: application-%d{yyyy-MM-dd}.log
, the timestamp is not replaced.结果日志文件名:
application-%d{yyyy-MM-dd}.log
,时间戳没有被替换。 Why?为什么?
要用日期附加文件名,用以下格式替换 %d,我遇到了同样的问题,但这样做了:
<RollingFile name="APP" fileName="application-${date:yyyy-MM-dd}.log" />
The pattern should not be given in the attribute "fileName" rather you have to specify the pattern in the attribute "filePattern" as like below.模式不应在属性“fileName”中给出,而必须在属性“filePattern”中指定模式,如下所示。
<RollingFile name="RollingFile" fileName="${log-path}/filename.log"
filePattern="${log-path}/filename-%d{yyyy-MM-dd}-%i.log" >
...
...
</RollingFile>
The "%i" is the counter that will be automatically incremented in rollover. “%i”是将在翻转时自动递增的计数器。
Hope this will help you.希望这会帮助你。
Try this:尝试这个:
<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="warn" name="MyApp" packages="">
<Properties>
<Property name="log-path">D:/logs/</Property>
</Properties>
<Appenders>
<RollingFile name="DebuggerLogger" fileName="${log-path}CMSAutomation.${date:yyyy-MM-dd_hh-mm-ss}.log" filePattern="${log-path}/$${date:yyyy-MM}/app-%d{MM-dd-yyyy}-%i.log.gz">
<PatternLayout>
<Pattern>%d %p %c{1.} [%t] %m%n</Pattern>
</PatternLayout>
<Policies>
<TimeBasedTriggeringPolicy />
<SizeBasedTriggeringPolicy size="10 MB" />
</Policies>
</RollingFile>
</Appenders>
<Loggers>
<Root level="ALL">
<AppenderRef ref="DebuggerLogger"/>
</Root>
</Loggers>
</Configuration>
Use ASizeBasedTriggeringPolicy
class in appender.在 appender 中使用
ASizeBasedTriggeringPolicy
类。 You can even append the current second to the logfile name.您甚至可以将当前秒附加到日志文件名。
%d{yyyy_MM_dd HH.mm.ss}
import org.apache.logging.log4j.core.LogEvent;
import org.apache.logging.log4j.core.appender.rolling.*;
import org.apache.logging.log4j.core.config.plugins.Plugin;
import org.apache.logging.log4j.core.config.plugins.PluginAttribute;
import org.apache.logging.log4j.core.config.plugins.PluginFactory;
@Plugin(name = "ASizeBasedTriggeringPolicy",
category = "Core",
printObject = true
)
public class ASizeBasedTriggeringPolicy extends AbstractTriggeringPolicy {
private SizeBasedTriggeringPolicy sizeBasedTriggeringPolicy;
private RollingFileManager aManager;
protected ASizeBasedTriggeringPolicy(String maxFileSize) {
sizeBasedTriggeringPolicy = SizeBasedTriggeringPolicy.createPolicy(maxFileSize);
}
public void initialize(RollingFileManager aManager) {
sizeBasedTriggeringPolicy.initialize(aManager);
this.aManager = aManager;
}
public boolean isTriggeringEvent(LogEvent event) {
if (sizeBasedTriggeringPolicy.isTriggeringEvent(event)) {
aManager.getPatternProcessor().setPrevFileTime(System.currentTimeMillis());
return true;
} else {
return false;
}
}
@PluginFactory
public static ASizeBasedTriggeringPolicy createPolicy(@PluginAttribute("size") String size) {
return new ASizeBasedTriggeringPolicy(size);
}
}
Then use ASizeBasedTriggeringPolicy
in log appender然后在日志追加器中使用
ASizeBasedTriggeringPolicy
<RollingFile name="complete-log" fileName="${log-path}/complete-${date:yyyy_MM_dd HH.mm.ss} .log"
filePattern="${log-path}/app-complete-%d{yyyy_MM_dd HH.mm.ss} - %i.log" >
...
...
<Policies>
<ASizeBasedTriggeringPolicy size="200 kB" />
</Policies>
</RollingFile>
In yaml check the Property filePattern
defined as "${date:yyyy-MM-dd}"
, which helps to tag the date.在 yaml 检查属性
filePattern
定义为"${date:yyyy-MM-dd}"
,这有助于标记日期。 If you are interested to tag the HOSTNAME
environment variable to date then : "${env:HOST}-${date:yyyy-MM-dd}"
如果您有兴趣将
HOSTNAME
环境变量标记为日期,则: "${env:HOST}-${date:yyyy-MM-dd}"
Properties:
Property:
- name: log-path
value: "logs"
- name: filePattern
value: "${date:yyyy-MM-dd}"
Appenders:
Console:
name: Console_Appender
target: SYSTEM_OUT
PatternLayout:
pattern: "[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n"
File:
name: File_Appender
fileName: "${log-path}/filelog-${filePattern}.log"
PatternLayout:
pattern: "[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n"
RollingFile:
- name: RollingFile_Appender
fileName: "${log-path}/rollingfile-${filePattern}.log"
filePattern: "logs/archive/rollingfile.log.%d{yyyy-MM-dd-hh-mm}.gz"
PatternLayout:
pattern: "[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %c{1} - %msg%n"
To show the date with the time timestamp to log4j2 file then add in log4j2.property file like: appender.file.fileName=${filename}/app-${date:yyyy-MM-dd-hh-mm-ss}.log
要在 log4j2 文件中显示带有时间戳的日期,然后在 log4j2.property 文件中添加:
appender.file.fileName=${filename}/app-${date:yyyy-MM-dd-hh-mm-ss}.log
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