Java Logger with Servlets

I am using a wrapper class A which initializes the java.util.logger

static class A {

    public static Logger logger;

    public static void init(){

    logger = Logger.getLogger("test");

}

Now, everywhere in my program I call A.init() and then logger.log("Message+uniqid"). But recently I moved to HTTP servlets and I am having problems.

Basically, If a app is already running and 开发者_JAVA百科the logger is logging... and someone else runs the app again, the logger from the previous instance stops and starts logging for the second one. Can anyone have a solution to how I should go about fixing this static variable issue?

I can pass the logger into all constructor classes but thats really tedious. Any better solution would be appreciated..

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You don't need to initialize your logger multiple times.

Actually, you don't even need to do it manually because you can create a properties-file with configuration information and put it to the certain directory in the way that this file will be deployed to WEB-INF/classes folder in your application server.

In the configuration file (properties-file) you can define different ways of writing logs. Then when you want to write log from some servlet, for example UserCounterServlet, you should do:

private static final Logger logger = Logger.getLogger (UserCounterServlet.class);
...
logger.info("some info");

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If you want really good logging solution in servlets, don't use a static logger (even if you know about some famous servlet-based projects use this way of logging). Use right logging solution developed with web app in mind (for example LogBack - advance of log4j, or so on)

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Yes never use static on a webapplication and what user177883 said use log4j it is a good solution for logging so why bother to write it from scratch