You want to use WebLogic Builder to deploy a web application.
WebLogic Builder installs with the WebLogic 7.0 Server, so you can launch the Builder application and use its graphical tools to deploy the web application.
WebLogic Builder is a graphical tool that installs with WebLogic Server 7. It can be used to edit deployment descriptor files such as web.xml and weblogic.xml, as well as for deploying web applications to a server. Using WebLogic Builder, you can open up, edit, and deploy web applications that exist as either WAR files or in exploded directory format.
Exploded directory format is a web-application directory structure as it would appear in your filesystem, but that is not in archived or in WAR form. To be deployed on WebLogic as a web application, the root directory must contain the WEB-INF/web.xml deployment descriptor and any other properly structured application components, such as a the WEB-INF/classes directory containing your servlets (including any package-related directories).
You can launch WebLogic Builder on Windows from either the "Start" menu or the command line. The start script for Builder is at: <BEA_HOME>/weblogic700/server/bin/startWLBuilder.cmd (or startWLBuilder.sh on Unix). <BEA_HOME> is the directory where WebLogic Server 7.0 is installed.
It is easy to open up and edit the deployment descriptor for a web application in WebLogic Builder. Go to the File → Open menu ...