Unable to set classpath for log4j

[Sree Potluri]

I am using the example from the website Log4J Example

I am having log4j in "C:\apache-log4j-1.2.16" and log4j-1.2.16.jar is in "C:\apache-log4j-1.2.16". I have set the path to C:\apache-log4j-1.2.16\log4j-1.2.16 and LOG4J_HOME="C:\apache-log4j-1.2.16"
When I run the program, I am getting this error:

log4j:WARN No appenders could be found for logger (com.vaannila.helloworld.HelloWorld).
log4j:WARN Please initialize the log4j system properly.
log4j:WARN See http://logging.apache.org/log4j/1.2/faq.html#noconfig for more info.
 

I am using netbeans and have added the library file to the project. What is going on?


Thanks,

[Joachim Rohde]

That's not an error but a warning. Have you followed the steps suggested in the warning (read: do you had a look at the FAQ)?

[Sree Potluri]

Yes I did read the article. But I gave it the path to the properties file and still I am unable to see the output.

[Sree Potluri]

I have even tried

  Loader.getResource("C:\\apache-log4j-1.2.16\\log4j-1.2.16.jar");  

still getting the same warning and I see no messages

[Joachim Rohde]

But

log4j-1.2.16.jar

is not the property file. Usually you name it log4j.properties.

[Sree Potluri]

   public class HelloWorld {

    static final Logger logger = Logger.getLogger(HelloWorld.class);

    public static void main(String[] args) {
       // BasicConfigurator.configure();
        Loader.getResource("C:\\apache-log4j-1.2.16\\log4j-1.2.16.jar");
        PropertyConfigurator.configure("src\\java\\com\\vaannila\\log4j.properties");
        logger.debug("Sample debug message");
        logger.info("Sample info message");
        logger.warn("Sample warn message");
        logger.error("Sample error message");
        logger.fatal("Sample fatal message");
    }
} 

if I give PropertyConfigurator.configure("log4j.properties"); I get fileNotFound error.

[Martijn Verburg]

The JAR file and the properties file simply need to be in your CLASSPATH, you should not have to explicitly link to them in your code. Please serach this forum for similar questions as there are several good answers there.