java.util.logging

How to get the logger wrapped in slf4j?

六眼飞鱼酱① 提交于 2021-02-20 08:32:13
问题 Is it possible to get the logger wrapped by slf4j ? For example, in debug mode, when I inspect org.slf4j.LoggerFactory.getLogger(loggerName) , I can see the logger (here, java.util.logging ) : I want to do something like : // Get the real logger, cast in java.util.logging java.util.logging.Logger myLogger = LoggerFactory.getLogger(loggerName))...; // Use the java.util.logging methods myLogger.setLevel(Level.parse(level)); 回答1: I've found a solution using reflection. Looking for the "logger"

Java util Logger not writing to file

 ̄綄美尐妖づ 提交于 2021-02-05 08:15:50
问题 I have written a silly Logger for my application. It writes into a log file info, warning and severe messages. It worked perfectly some time ago, but suddenly, it stopped working for no aparent reason. It keeps creating the log file if it does not exist, but no content is written. I can't find why it is not working now. I would thank some help. Debugging with my IDE, I realise that messages are passed correctly to logger, and logger.info() is being executed. public class FsLogger { private

Logging handler usage

对着背影说爱祢 提交于 2021-01-29 09:32:00
问题 my question is similar to Why does java.util.logging.Logger print to stderr? post. I want to use only one handler in my logging, where as it should print INFO statements on to out stream and WARNING & SEVERE onto error stream. Is this possible ? If I take two handlers for example, one for out stream - and level as INFO another for error stream - and level as WARNING/SEVERE in this case, application is showing messages twice one with out stream and another with error stream. So any solution ?

What is the correct way of logging in an xml from two different classes ? For now I get an error in the xml produced

谁说胖子不能爱 提交于 2021-01-28 10:42:19
问题 By default the code : class Tester { public static void main(String args[]) throws IOException{ Logger logger = Logger.getLogger(Tester.class.getName()); FileHandler fHandler = new FileHandler("LOGGED.xml",true); logger.addHandler(fHandler); logger.log(Level.INFO,"This is an info log message"); fHandler.close(); } } produces a xml of the type : <?xml version="1.0" encoding="windows-1252" standalone="no"?> <!DOCTYPE log SYSTEM "logger.dtd"> <log> <record> <date>2013-02-03T08:16:37</date>

What is the correct way of logging in an xml from two different classes ? For now I get an error in the xml produced

|▌冷眼眸甩不掉的悲伤 提交于 2021-01-28 10:37:16
问题 By default the code : class Tester { public static void main(String args[]) throws IOException{ Logger logger = Logger.getLogger(Tester.class.getName()); FileHandler fHandler = new FileHandler("LOGGED.xml",true); logger.addHandler(fHandler); logger.log(Level.INFO,"This is an info log message"); fHandler.close(); } } produces a xml of the type : <?xml version="1.0" encoding="windows-1252" standalone="no"?> <!DOCTYPE log SYSTEM "logger.dtd"> <log> <record> <date>2013-02-03T08:16:37</date>

Google Cloud Logging Handler Not Found

不问归期 提交于 2021-01-28 07:06:36
问题 My google app engine local development server returns a classdef not found exception when I point the logger to google clouds logging handler, how do I fix this? INFO: Dev App Server is now running Can't load log handler "com.google.cloud.logging.LoggingHandler" java.lang.ClassNotFoundException: com.google.cloud.logging.LoggingHandler java.lang.ClassNotFoundException: com.google.cloud.logging.LoggingHandler at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader

Java logging using getHead() with append

人走茶凉 提交于 2021-01-27 13:39:37
问题 We're developing a web application and I'm implementing event logging on the server side. I decided a nice approach would be to extend the Java logging API to log events to a CSV file. I created a java.util.logging.Formatter class as follows: public class EventLogCsvFormatter extends Formatter { private static final SimpleDateFormat SDF = new SimpleDateFormat("MM/dd/yyyy h:mm a"); private static final String[] COL_HEADERS = {"Date/Time", "Source", "Event Type", "Application Context",