log4j2 in Java project - Can't find output

Question

Im new here, Please help me to understand my new project's log4j2 configuration.

My question is:

• How to get all Log outputs?

• From where should I search log files?

Also how to save tomcat console outputs in the txt file?

I really appreciate your help and support, Today I want to learn something new from you guys! Thanks!

This is the log4j2.xml:

    <?xml version="1.0" encoding="UTF-8"?>

<configuration status="error" monitorInterval="1800">
    <Properties>
        <Property name="LOG_HOME">\Workspaces\logs\paymentweb</Property>
        <Property name="LOG_DEBUG">${LOG_HOME}\app\debug.log</Property>
        <Property name="LOG_INFO">${LOG_HOME}\app\info.log</Property>
        <Property name="LOG_ERROR">${LOG_HOME}\app\error.log</Property>
    </Properties>


    <appenders>

        <Console name="Console" target="SYSTEM_OUT">
        （onMismatch）-->
            <ThresholdFilter level="trace" onMatch="ACCEPT" onMismatch="DENY"/>

            <PatternLayout pattern="%d{yyyy.MM.dd HH:mm:ss z} %-5level %class{36}.%M()/%L - %msg%xEx%n"/>
        </Console>


        <RollingRandomAccessFile name="app_debug" fileName="${LOG_DEBUG}" append="false" filePattern="${LOG_HOME}\$${date:yyyy-MM}\debug-%d{MM-dd-yyyy}-%i.log.gz">
            <Filters>
                <ThresholdFilter level="debug" onMatch="ACCEPT" onMismatch="NEUTRAL"/>
            </Filters>
            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss z} %-5level %class{36}.%M()/%L - %msg%xEx%n"/>
            <Policies>
                <OnStartupTriggeringPolicy />
                <SizeBasedTriggeringPolicy size="50 MB" />
                <TimeBasedTriggeringPolicy />
            </Policies>
        </RollingRandomAccessFile>


        <CustomRollingRandomAccessFile name="app_info" fileName="${LOG_INFO}" append="false" filePattern="${LOG_HOME}\$${date:yyyy-MM}\info-%d{MM-dd-yyyy}-%i.log.gz">
            <Filters>
                <ThresholdFilter level="warn" onMatch="DENY" onMismatch="NEUTRAL"/>
                <ThresholdFilter level="info" onMatch="ACCEPT" onMismatch="DENY"/>
            </Filters>
            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss z} %-5level %class{36}.%M()/%L - %msg%xEx%n"/>
            <Policies>
                <OnStartupTriggeringPolicy />
                <SizeBasedTriggeringPolicy size="50 MB" />
                <TimeBasedTriggeringPolicy />
            </Policies>
        </CustomRollingRandomAccessFile>


        <CustomRollingRandomAccessFile name="app_error" fileName="${LOG_ERROR}" append="false" filePattern="${LOG_HOME}\$${date:yyyy-MM}\error-%d{MM-dd-yyyy}-%i.log.gz">
            <Filters>
                <ThresholdFilter level="warn" onMatch="ACCEPT" onMismatch="DENY"/>
            </Filters>
            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss z} %-5level %class{36}.%M()/%L - %msg%xEx%n"/>
            <Policies>
                <OnStartupTriggeringPolicy />
                <SizeBasedTriggeringPolicy size="50 MB" />
                <TimeBasedTriggeringPolicy />
            </Policies>
        </CustomRollingRandomAccessFile>
    </appenders>


    <loggers>

        <root level="trace" additivity="false">
            <appender-ref ref="Console"/>  
            <appender-ref ref="app_debug"/>  
            <appender-ref ref="app_info"/>  
            <appender-ref ref="app_error"/>
       </root>
    </loggers>
 </configuration>

Answer 1

all your logs are in \Workspaces\logs\paymentweb\app*.log

Answer 2

You can find out details about how your appenders are configured by enabling internal Log4j2 "status" logging.

At the top of your configuration file, change it to TRACE <configuration status="trace" monitorInterval="1800">. I believe this will show the full path of the file appenders on the console. (No guarantees for the custom appender CustomRollingRandomAccessFile.)

Also, you have a non-XML compliant snippet inside the <Console> appender configuration. This looks bad and should be removed:

（onMismatch）-->