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I agree with the above except for the part about manually configuring log4j using PropertyConfigurator. For one thing, the pattern above is going to reconfigure log4j every time you hit the page. I always like to leverage log4j's automatic configuration by putting the configuration file (and I prefer the XML form) somewhere on the classpath so that log4j can find it and configure itself when necessary. If you prefer a more JSP-ish way of logging, have a look at <a href="http://jakarta.apache.org/taglibs/doc/log-doc/intro.html" rel="ugc nofollow">http://jakarta.apache.org/taglibs/doc/log-doc/intro.html</a>.<br />
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Regards,<br />
Jim Cakalic
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I agree with the above except for the part about manually configuring log4j using PropertyConfigurator. For one thing, the pattern above is going to reconfigure log4j every time you hit the page. I always like to leverage log4j's automatic configuration by putting the configuration file (and I prefer the XML form) somewhere on the classpath so that log4j can find it and configure itself when necessary. If you prefer a more JSP-ish way of logging, have a look at http://jakarta.apache.org/taglibs/doc/log-doc/intro.html [http://jakarta.apache.org/taglibs/doc/log-doc/intro.html].

Regards,
Jim Cakalic

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If you are going to use taglibs, then this site has a very nice walk-through of how to use log4j tags in a JSP page:<br />
<a href="http://www.mobilefish.com/developer/log4j/log4j_quickguide_jsp.html" rel="ugc">http://www.mobilefish.com/developer/log4j/log4j_quickguide_jsp.html</a><br />
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However, if you don't use taglibs, it's easier to set up a more basic configuration as I documented above.
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If you are going to use taglibs, then this site has a very nice walk-through of how to use log4j tags in a JSP page:
http://www.mobilefish.com/developer/log4j/log4j_quickguide_jsp.html [http://www.mobilefish.com/developer/log4j/log4j_quickguide_jsp.html]

However, if you don't use taglibs, it's easier to set up a more basic configuration as I documented above.

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I have been asked to add log4J to a JSP so I can test application logging. Im not sure where to begin and what to put in the jsp?<br />
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any help would be appreciated.
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I have been asked to add log4J to a JSP so I can test application logging. Im not sure where to begin and what to put in the jsp?

any help would be appreciated.

Adding log4J to a JSP

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.

Java

JavaServer Pages (JSP) allow the development of dynamically generated web pages. It uses the Java programming language; JSP pages are translated into servlets at runtime, with each servlet being cached and reused until the JSP is modified. JSP allows Java code to be interleaved with static web markup content, so the resulting page can be compiled and executed on the server to deliver the content.