log4j to a file

[Anonymous]

Hi, 
I need help to write log4j logging information to a file. By default log4J is writing on console. How should I configure, and where should I configure If I want log4J to write logging information to a file like " c:/log.txt ".

 
Thanks,
Abhi529

[Anonymous]

Hello,

Please take a look at this related topic:https://community.talend.com/t5/Design-and-Development/Issue-with-tRest/m-p/31782

You can do this with a little Java code in a tJava component at the beginning of your Job or use a custom component tredirectOutput.

Let us know if it is Ok with you.

Best regards

Sabrina

[Anonymous]

Hi @xdshi,

thanks for your answer but it is not work for me.

I have added the following code into log4j.xml.....then still i am unable to get the the log4j file in reqired location...

 <appender name="DailyFileAppender" class="org.apache.log4j.DailyRollingFileAppender">
		<param name="DatePattern" value="'.'yyyy-MM-dd"/>
		<param name="File" value="c:/log/myjob.txt "/>
		<param name="Append" value="true"/>
		<layout class="org.apache.log4j.PatternLayout">
			<param name="ConversionPattern" value="%d{HH:mm:ss,SSS} %-5p %c{2} - %m%n"/>
		</layout>
	</appender>

Please find below image...

Thanks,

Abhi529

[Anonymous]

Hi,

You added code into log4j.xml?

Have you tried to use this custom component tredirectoutput which is used to redirect all the message printed on the console to a file. to see if it works?

Best regards

Sabrina

[Anonymous]

Hello,

Is there any update for your issue? Feel free to post your issue here.

Best regards

Sabrina

[Anonymous]

Hi@xdshi ,I've tried your method too, but it doesn't work.

[Anonymous]

Hello,

Which section will block you? Are you able using tJava component to save your output in a file?

Best regards

Sabrina

[Anonymous]

Thank you for your answer.But how do I use the tJava component  to output the content of log4j?

[charlesclement1]

Hi all,

You need to complete with this at the end :

    <!-- Root Logger -->  
	<root>
		<priority value ="warn"/>
		<appender-ref ref="CONSOLE"/>
		<appender-ref ref="DailyFileAppender"/>
	</root>

Here my complete configuration : 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
  
<log4j:configuration xmlns:log4j='http://jakarta.apache.org/log4j/' >
  
  	<!--  CONSOLE appender  -->
	<appender name="CONSOLE" class="org.apache.log4j.ConsoleAppender">
		<layout class="org.apache.log4j.PatternLayout">
		 	<param name="ConversionPattern"  
		  		value="[%-5p]: %c - %m%n" />
		</layout>
	</appender>

 <appender name="DailyFileAppender" class="org.apache.log4j.DailyRollingFileAppender">
		<param name="DatePattern" value="'.'yyyy-MM-dd"/>
		<param name="File" value="c:/log/myjob.txt "/>
		<param name="Append" value="true"/>
		<layout class="org.apache.log4j.PatternLayout">
			<param name="ConversionPattern" value="%d{HH:mm:ss,SSS} %-5p %c{2} - %m%n"/>
		</layout>
</appender>
	
	<!-- logstash appender -->
    <!-- <appender name="LOGSTASH" class="org.apache.log4j.net.SocketAppender">
        <param name="RemoteHost" value="localhost"/>
        <param name="Port" value="8052"/>
    </appender> -->
	
	<!-- Spring Logger -->  
	<logger name="log4j.logger.org.springframework">  
        <level value="WARN" />  
        <appender-ref ref="CONSOLE"/>
    </logger>
    
    <!-- throwableRenderer <throwableRenderer class="org.apache.log4j.EnhancedThrowableRenderer"/>--> 
	
    <!-- Root Logger -->  
	<root>
		<priority value ="warn"/>
		<appender-ref ref="CONSOLE"/>
		<appender-ref ref="DailyFileAppender"/>
	</root>
</log4j:configuration>

[tale103108]

I think your appender name has to be FILE not DailyFileAppender