Deploying a servlet is actually making the servlet "ready for use" in simple words. To start using the application in IBM Websphere, these are the "basic" steps.
1) Create a ear(Enterprise Application Archive) or war(Web Application Archive) file. let us assume you have created a war file. 2) copy the war file to the <wasinstall>\WebSphere\AppServer\installableApps folder. 3) If you have created any shared jar file, copy them to the folder <wasinstall>\WebSphere\AppServer\lib\ext folder. 4) configure the application server. (assign port, create security, create datasource, creating alias and much more) 5) Next is to install the war file that was copied to the installableApps apps folder earlier. Open admin console and select "Install New Application". select the war file which needs to be deployed and do the additional settings.
Please refer to the detailed Websphere setup and deploying applications from the ibm site. Hope this gives you a good start.
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