CODEWITHSUNDEEP
javalog4jstack-trace
Geek
Geek

Reputation: 3329

Getting stacktrace in logger

I am using log4j to log my exceptions. I want to log whatever I get in e.printStackTrace();
My code looks like this:

try {

} catch(Exception e) {
    log.error("Exception is:::" + e);
}

But the content I get logged looks like this:

2012-02-02 12:47:03,227 ERROR [com.api.bg.sample] - Exception in unTech:::[Ljava.lang.StackTraceElement;@6ed322
2012-02-02 12:47:03,309 ERROR [com.api.bg.sample] - Exception is :::java.lang.IndexOutOfBoundsException: Index: 0, Size: 0

But the content I expect is:

java.io.IOException: Not in GZIP format
at java.util.zip.GZIPInputStream.readHeader(Unknown Source)
at java.util.zip.GZIPInputStream.<init>(Unknown Source)
at java.util.zip.GZIPInputStream.<init>(Unknown Source)
at com.api.bg.sample.unGZIP(sample.java:191)
at com.api.bg.sample.main(sample.java:69)

I tried e.getMessage(), e.getStackTrace(); however I don't get the full stacktrace. Any suggestions?

Upvotes: 57

Views: 87058

Answers (5)

Arun
Arun

Reputation: 915

If you use the below than e.toString() will be called which calls e.getMessage()

log.error("Exception is:::" + e);

However, to print full stack trace you can use the below:

log.error("Exception is:::" + ExceptionUtils.getStackTrace(e));

where ExceptionUtils is imported as org.apache.commons.lang3.exception.ExceptionUtils

Upvotes: 3

Mansa
Mansa

Reputation: 11

log.log(LEVEL.ERROR,e.getMessage(),e);

Upvotes: 0

Brian Tarbox
Brian Tarbox

Reputation: 2375

You have to use the two argument form

log.error("my logging message", exception)

See http://www.devdaily.com/blog/post/java/how-print-exception-stack-trace-using-log4j-commons for more details.

Upvotes: 92

Jonathan
Jonathan

Reputation: 7604

Change your logging statement to:

log.error("Exception is: ", e);

Upvotes: 8

Kurt Du Bois
Kurt Du Bois

Reputation: 7655

It is actualy log4j that prevents the printing of the fulltime stacktrace. You should however set the exception as a second parameter for the error method.

Upvotes: 4

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