<Context><Environment name="mykey" value="myvalue" type="java.lang.String"/></Context>Object object = ((Context)(new InitialContext().lookup("java:comp/env")).lookup("mykey");.
Handling NamingException.
Public String getFromEnvironment(final String name).
{.
If(name == null) return null;.
Try.
{.
Final Object object = ((Context)(new InitialContext().lookup("java:comp/env"))).lookup(name);.
If (object != null) return object.toString();.
} catch (final Exception e) {}.
Return System.getenv(name);.
}.
JUnit test. The naming bits used by Tomcat are in a JAR file not in the TOMCAT_HOME/lib, but instead in the TOMCAT_HOME/bin/tomcat-juli.jar file!.
Updated:
2026 Aug 19
