log4j redirect stdout to DailyRollingFileAppender

by 
// I set up a ConsoleAppender in Log4J to format Stdout/Stderr
log4j.rootLogger=DEBUG, CONSOLE
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=[%t] %-5p %c - %m%n


// And I call this StdOutErrLog.tieSystemOutAndErrToLog() on startup

public class StdOutErrLog {

    private static final Logger logger = Logger.getLogger(StdOutErrLog.class);

    public static void tieSystemOutAndErrToLog() {
        System.setOut(createLoggingProxy(System.out));
        System.setErr(createLoggingProxy(System.err));
    }

    public static PrintStream createLoggingProxy(final PrintStream realPrintStream) {
        return new PrintStream(realPrintStream) {
            public void print(final String string) {
                realPrintStream.print(string);
                logger.info(string);
            }
        };
    }
}

More Related Contents:

  1. Redirect console output to string in Java
  2. Read a file line by line in reverse order
  3. How to move elements of Java ArrayList to file in java [closed]
  4. Java NIO FileChannel versus FileOutputstream performance / usefulness
  5. Reading UTF-8 – BOM marker
  6. Java sending and receiving file (byte[]) over sockets
  7. Using File.listFiles with FileNameExtensionFilter
  8. How to create my own Appender in log4j?
  9. Java ‘file.delete()’ Is not Deleting Specified File
  10. Eclipse reading stdin (System.in) from a file
  11. How to get a random line of a text file in Java?
  12. Writing a file to sdcard
  13. Android : How to read file in bytes?
  14. Java File – Open A File And Write To It [closed]
  15. How to create a new java.io.File in memory? [duplicate]
  16. Initializing Log4J with Spring?
  17. how to drag and drop files from a directory in java
  18. Trouble with filewriter overwriting files instead of appending to the end
  19. Compress Log4j files
  20. How to send a stacktrace to log4j?
  21. Migrating from log4j to log4j2 – properties file configuration
  22. How can I get the count of line in a file in an efficient way? [duplicate]
  23. Selenium WebDriver: Upload multiple files
  24. How to exclude a single Class from a Log4j Logger / Appender?
  25. In Java, how can I redirect System.out to null then back to stdout again?
  26. How can I catch all exceptions thrown through reading / writing a file?
  27. Difference between java.io.PrintWriter and java.io.BufferedWriter?
  28. How to atomically rename a file in Java, even if the dest file already exists?
  29. How can I read file from classes directory in my WAR?
  30. Servlet redirect to same page with error message

Leave a Comment