[logback-user] Project Can't Find logback.xml file

[Adam Gordon]

I'm no logback expert either… :-)

No, you're right.  %n is a newline.  The space character beforehand is not necessary but it shouldn't cause any issues.  See http://logback.qos.ch/manual/layouts.html for details on pattern characters (what they are, how to use them, etc…)

I don't know if it will make any difference - as I don't know what the default encoder is if you don't specify one, but try setting the class attribute on your <encoder> element, i.e.:

<encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder">
  <pattern>….</pattern>
</encoder>

You may also want to try changing the pattern to see if the changes are indeed picked up.  I don't see any package in front of your class, but this may be due to the class being in the default package.

On Jan 20, 2012, at 10:42 AM, Roger Spears wrote:

> Hello,
> 
> Thank you for your suggestion of add the ClassLoader.  I don't know why I didn't think of that.  Maybe it's because I'm fairly new to Java.
> 
> I added the following two lines to my HelloWorld.java class:
> 
>     String URL = "logback.xml";
>     System.out.println(ClassLoader.getSystemResource(URL));
> 
> The output I receive on the console looks like this:
> 
> file:/Users/roger/NetBeansProjects/HelloWorld/build/classes/logback.xml
> 12:30:01.762 [main] DEBUG helloworld - Hello world.
> 
> When I open the logback.xml file that is listed in the console output, it looks exactly like the custom logback.xml file I created.
> 
> The problem still exists that it's not picking up on the custom pattern I have in logback.xml.  That pattern looks like this:
> 
> <pattern>%date %n [%thread] %level %logger{35} - %n %msg</pattern>
> 
> 
> I would have expected to see the date followed by a jump down to a new line followed by [main] followed by a jump down to a new line and etc. etc etc.
> 
> Am I wrong to think logback uses %n as new line characters?
> 
> My experience has been with log4j and %n generates the newline in its pattern.
> 
> Thanks again,
> Rogert
> 
>> 	Adam Gordon	January 20, 2012 12:13 PM
>> The XML file needs to be in your class path. The first thing I would check is to see if you can load the file as a resource with ClassLoader.getResourceAsStream(String) or similar. If this is able to load the file, then it's on your class path and I'm not sure what the problem is but it's something to eliminate as an issue first.
>> 
>> In my maven project, I have it in src/main/resources and everything is happy.
>> 
>> 
>> 
>> _______________________________________________
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>> Logback-user at qos.ch
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>> 	Roger Spears	January 20, 2012 12:07 PM
>> Hello, 
>> 
>> I'm running Netbeans 7.0.1 on a Mac Book Pro with OS Lion.  I'm currently using log4j without any problems.  I wanted to try out logback. 
>> 
>> Yesterday I downloaded logback and placed the 4 jar files in the proper location.  I'm able to run the basic logback HelloWorld example.  Here's the code for the HelloWorld example I'm working with: 
>> 
>> package helloworld; 
>> 
>> import org.slf4j.Logger; 
>> import org.slf4j.LoggerFactory; 
>> 
>> public class HelloWorld { 
>> 
>>   public static void main(String[] args) { 
>> 
>>     Logger logger = LoggerFactory.getLogger("helloworld"); 
>>     logger.debug("Hello world."); 
>> 
>>   } 
>> 
>> } 
>> 
>> Here's my customized logback.xml file: 
>> 
>> <configuration> 
>> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> 
>> <encoder> 
>> <pattern>%date %n [%thread] %level %logger{35} - %n %msg</pattern> 
>> </encoder> 
>> </appender> 
>> <root level="DEBUG"> 
>> <appender-ref ref="STDOUT" /> 
>> </root> 
>> </configuration> 
>> 
>> The problem is...Netbeans (or java) never picks up on my customized logback.xml file.  I'm starting out easy by just changing the pattern to see if I can get it to work.  When I run the project, I see the following on the console: 
>> 
>> 11:56:33.569 [main] DEBUG helloworld - Hello world. 
>> 
>> That's not the pattern I specified in logback.xml. 
>> 
>> I'm assuming I just don't have it in the proper location.  I have a copy of logback.xml in the following locations just to see if I had it in the wrong place: 
>> 
>> NetBeansProjects -> HelloWorld -> src -> logback.xml 
>> 
>> NetBeansProjects -> HelloWorld -> logback.xml 
>> 
>> NetBeansProjects -> HelloWorld -> nbproject -> private -> logback.xml 
>> 
>> NetBeansProjects -> HelloWorld -> build -> classes -> logback.xml 
>> 
>> System -> Libraries -> Java -> Extensions -> logback.xml 
>> 
>> 
>> I am still unable to get the pattern I'm looking for. 
>> 
>> Does anyone know why this would be happening? 
>> 
>> Thanks, 
>> Roger 
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