[java] How can I create 2 separate log files with one log4j config file?

Try the following configuration:

log4j.rootLogger=TRACE, stdout

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d [%24F:%t:%L] - %m%n

log4j.appender.debugLog=org.apache.log4j.FileAppender
log4j.appender.debugLog.File=logs/debug.log
log4j.appender.debugLog.layout=org.apache.log4j.PatternLayout
log4j.appender.debugLog.layout.ConversionPattern=%d [%24F:%t:%L] - %m%n

log4j.appender.reportsLog=org.apache.log4j.FileAppender
log4j.appender.reportsLog.File=logs/reports.log
log4j.appender.reportsLog.layout=org.apache.log4j.PatternLayout
log4j.appender.reportsLog.layout.ConversionPattern=%d [%24F:%t:%L] - %m%n

log4j.category.debugLogger=TRACE, debugLog
log4j.additivity.debugLogger=false

log4j.category.reportsLogger=DEBUG, reportsLog
log4j.additivity.reportsLogger=false

Then configure the loggers in the Java code accordingly:

static final Logger debugLog = Logger.getLogger("debugLogger");
static final Logger resultLog = Logger.getLogger("reportsLogger");

Do you want output to go to stdout? If not, change the first line of log4j.properties to:

log4j.rootLogger=OFF

and get rid of the stdout lines.

Examples related to java

Under what circumstances can I call findViewById with an Options Menu / Action Bar item? How much should a function trust another function How to implement a simple scenario the OO way Two constructors How do I get some variable from another class in Java? this in equals method How to split a string in two and store it in a field How to do perspective fixing? String index out of range: 4 My eclipse won't open, i download the bundle pack it keeps saying error log

Examples related to logging

How to redirect docker container logs to a single file? Console logging for react? Hide strange unwanted Xcode logs Where are logs located? Retrieve last 100 lines logs Spring Boot - How to log all requests and responses with exceptions in single place? How do I get logs from all pods of a Kubernetes replication controller? Where is the Docker daemon log? How to log SQL statements in Spring Boot? How to do logging in React Native?

Examples related to log4j

No log4j2 configuration file found. Using default configuration: logging only errors to the console How to stop INFO messages displaying on spark console? What is log4j's default log file dumping path How to give environmental variable path for file appender in configuration file in log4j No appenders could be found for logger(log4j)? SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". in a Maven Project log4j:WARN No appenders could be found for logger (running jar file, not web app) Error: "setFile(null,false) call failed" when using log4j java.lang.ClassNotFoundException: org.apache.log4j.Level How can I create 2 separate log files with one log4j config file?