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Posted to commits@logging.apache.org by mi...@apache.org on 2015/11/11 11:25:34 UTC
[07/16] logging-log4j2 git commit: FAQ improvements.
FAQ improvements.
Project: http://git-wip-us.apache.org/repos/asf/logging-log4j2/repo
Commit: http://git-wip-us.apache.org/repos/asf/logging-log4j2/commit/02e954c8
Tree: http://git-wip-us.apache.org/repos/asf/logging-log4j2/tree/02e954c8
Diff: http://git-wip-us.apache.org/repos/asf/logging-log4j2/diff/02e954c8
Branch: refs/heads/LOG4J-1181
Commit: 02e954c8972a8023553614230f0ac0e5a483a790
Parents: febe3db
Author: rpopma <rp...@apache.org>
Authored: Wed Nov 11 13:43:58 2015 +0900
Committer: rpopma <rp...@apache.org>
Committed: Wed Nov 11 13:43:58 2015 +0900
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src/site/xdoc/faq.xml | 13 ++++++++++++-
1 file changed, 12 insertions(+), 1 deletion(-)
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http://git-wip-us.apache.org/repos/asf/logging-log4j2/blob/02e954c8/src/site/xdoc/faq.xml
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diff --git a/src/site/xdoc/faq.xml b/src/site/xdoc/faq.xml
index 12f6290..7c4aa87 100644
--- a/src/site/xdoc/faq.xml
+++ b/src/site/xdoc/faq.xml
@@ -25,6 +25,8 @@
<body>
<section name="Frequently Asked Questions">
<ul>
+ <li><a href="#missing_core">I'm seeing this error "Unable to locate a logging implementation, using SimpleLogger".
+ What is wrong?</a></li>
<li><a href="#which_jars">Which JAR files do I need?</a></li>
<li><a href="#config_location">How do I specify the configuration file location?</a></li>
<li><a href="#config_from_code">How do I configure log4j2 in code without a configuration file?</a></li>
@@ -39,7 +41,13 @@
-->
</ul>
<subsection>
- <a name="which_jars" />
+ <a name="missing_core" />
+ <h4>I'm seeing this error "Unable to locate a logging implementation, using SimpleLogger".
+ What is wrong?</h4>
+ <p>You have the log4j-api-2.x jar file in your classpath but you still need to add the log4j-core-2.x jar to the
+ classpath. (Also, it looks like you are using an old version of Log4j 2. You may want to upgrade.)</p>
+
+ <a name="which_jars" />
<h4>Which JAR files do I need?</h4>
<p>You need at least the log4j-api-2.x and the log4j-core-2.x jar files.</p>
<p>The other jars are necessary if your application calls the API
@@ -59,6 +67,9 @@
</p><p>
You can also specify the full path of the configuration file with this system property:<br />
<code>-Dlog4j.configurationFile=path/to/log4j2.xml</code></p>
+ <p>Web applications can specify the Log4j configuration file location with a servlet context parameter.
+ See <a href="http://logging.apache.org/log4j/2.x/manual/webapp.html#ContextParams">this section</a>
+ of the Using Log4j 2 in Web Applications manual page.</p>
<a name="config_from_code" />
<h4>How do I configure log4j2 in code without a configuration file?</h4>