取得Weblogic版本信息
参考: http://cn.forums.oracle.com/forums/thread.jspa?threadID=1104035

Option-A).
Just run ". ./setWLSEnv.sh" and then run the following Program:

java weblogic.version


 OUTPUT: (something like this)
 WebLogic Server 10.3 Fri Jul 25 16:30:05 EDT 2008 1137967
 Use 'weblogic.version -verbose' to get subsystem information
 Use 'weblogic.utils.Versions' to get version information for all modules
 =================================

Option-D).
从<WL_HOME>/registry.xml 或 <WL_HOME>/logs/log.txt 中取得