Disable loggin for standalone Hello World! app

[zooom]

Hello,
I searched on forums but could not find an answer for this question, as all problems relate to apps running on web servers.

I have the following bean.xml file:

  
  <!-- headers ommited -->
  <bean id="bean1" class="Bean">
    <property name="say" value="Hello world!"/>
  </bean>

And the following Bean.java file:

//import header ommited
public class Bean {
  public Bean () {}
  private String say;
  public void setSay (String what) {this.say = what; }
  public static void main(String[] args) throws Exception {
    ClassPathXmlApplicationContext ctx 
        = new ClassPathXmlApplicationContext("bean.xml"); 
    Bean b = ctx.getBean("bean1",Bean.class);
    System.out.println(b.say);
  }  
}

Running this program produces six lines of info logs - what should I do to turn them off?

Best regards,
zoom.

[sudheerk84]

These logs could be coming from spring classes.

Ensure that your logging framework will have error levels for classes which are spitting the logs.

something like com.springfgramework.* - to have error level

[zooom]

sudhherk, thanks for your answer.
Obviously the logs come from Spring framework but I did not ask for them.
I tried to make the smallest Hello World app, only this libraries are in classpath:

commons-logging-1.1.1.jar
org.springframework.asm-3.0.0.RELEASE.jar
org.springframework.beans-3.0.0.RELEASE.jar
org.springframework.context-3.0.0.RELEASE.jar
org.springframework.core-3.0.0.RELEASE.jar
org.springframework.expression-3.0.0.RELEASE.jar

I tried to delete commons-logging-1.1.1.jar but then spring throws ClassNotFoundException.

So what do I need to do to turn off logging?

[sudheerk84]

i mean to say its uses commons logging to log. Set the logging level to required level.

http://commons.apache.org/logging/gu...l#Introduction
[default is info]

[priyavenkat]

Adding to what Sudheer says,

In your log4j.properties,

just set

# Debug statements logged by Spring framework.
log4j.category.org.springframework=<the level that you want to get printed eg: INFO,DEBUG>

Priya
More Java Programming Tips

[zooom]

sudheerk, priyavenkat thanks for your answers.
In my simple Hello World! app I did not have a log4j.properties file so I created one.
I did not know where to put it so I used the same folder where the sources are [I use eclipse so it got automatically copied to binary folder that is in classpath]

My log4j.properties looks like this:

log4j.category.org.springframework=ERROR

But still my Hello World! app produces six lines of INFO logs :-(
Maybe it is because I do not use log4j in my tiny app?

I also went with sudheerk's advice and read commons-logging doc and I created the following commons-logging.properties file

org.apache.commons.logging.Log=org.apache.commons.logging.impl.SimpleLog
org.apache.commons.logging.simplelog.defaultlog=ERROR

Amazingly spring log output got reduced from 6 lines to 3 all starting with [INFO] string

so it's like 50% success...
But I see it as 50% failure :-)
Any more I ideas what should I do - all I have is a simpe Hello world! app

[priyavenkat]

Hi Dude,

am not sure how you have implemented log4j.

here is the complete details of a sample implementation. This should get you through. Check this out

How to use Log4j in Spring Projects: Sample

Let me know if this works

Thanks
Priya

[zooom]

It works -thanks [I easly managed to change ERROR output to console].
It is a very nice tutorial that you wrote - now everyone can understand

But as long as all I need to do is just turn logging off - this solutions seems somewhat ugly - I need to download another library to disable something. It seems a little like a workaround :-)

But still you tutorial is very useful and thanks a lot!