Писать в аппендер только сообщения определенного уровня:
| Код | LevelRangeFilter rangeFilter = new LevelRangeFilter();
rangeFilter.setLevelMax(Level.OFF);
rangeFilter.setLevelMin(Level.WARN);
ConsoleAppender errAppender = new ConsoleAppender(new PatternLayout("%d{dd-MM-yyyy HH:mm:ss.SSS} | %-5p | %m%n"), "System.err");
errAppender.addFilter(rangeFilter); |
Или в конфигурационном файле прописать, что-то вроде:
| Код | <?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
<log4j:configuration>
<appender name="Console" class="org.apache.log4j.ConsoleAppender">
<param name="Target" value="System.out"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%-5p: %m%n"/>
</layout>
</appender>
<appender name="File" class="org.apache.log4j.FileAppender">
<param name="File" value="main.log"/>
<param name="Append" value="false"/>
<param name="BufferedIO" value="false"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d [%-5p] %m {at %c}%n"/>
</layout>
<filter class="org.apache.log4j.varia.LevelRangeFilter">
<param name="LevelMax" value="OFF"/>
<param name="LevelMin" value="INFO"/>
</filter>
</appender>
<appender name="DebugFile" class="org.apache.log4j.FileAppender">
<param name="File" value="debug.log"/>
<param name="Append" value="false"/>
<param name="BufferedIO" value="false"/>
<layout class="org.apache.log4j.PatternLayout">
<param name="ConversionPattern" value="%d [%-5p] %m {at %c}%n"/>
</layout>
<filter class="org.apache.log4j.varia.LevelRangeFilter">
<param name="LevelMax" value="DEBUG"/>
<param name="LevelMin" value="ALL"/>
</filter>
</appender>
<root>
<priority value ="ALL"/>
<appender-ref ref="Console"/>
<appender-ref ref="File"/>
<appender-ref ref="DebugFile"/>
</root>
</log4j:configuration> |
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