Steps to Deploy Webapplication into Weblogic 8.1 server:

1. Create a .war file using any ide like Netbeans 5.5, the .war file will be placed in the dist folder which is in project saved folder.
2. Start Weblogic ->User Projects -> mydomain -> start server
3. Open console using ie or mozilla with url http://hostname:7001/console give user credetials
4. Goto mydomain->deployments->webapplication modules-> right click -> deploy a new webapplication module.
5. Browse applicaion(.war file)
6. Press target module
Now your application will deployed and you will noticed with a status screen.
In testing tab you will get the url which is hosted you can test/call url in same or remote system to use that appliaction.
Regards
Jami