I downloaded Apache Tomcat 6.0.2 And created a new server in Eclipse
1- double click on server 2- Make Sure You have switched correctly the directory for tomcat here
Before
After Fix
3- And Even if you do #2 above you may need do this here as well !
Again here !
see if below URL Helps to resolve the issue
http://www.youtube.com/watch?v=orctlc_F5Y0
Launch your eclipse Run as administration:
For that right click on eclipse-----> run as administration.
It works.
If it not works then again do same and then follow these steps:
In Eclipse, right click on server --> Properties --> Click Switch Location --> Apply-->Ok
(This will switch the [workspace metadata] location to the installed Tomcat location.)Then go back to server, double click it. This will open Overview tab. Under this tab goto -->Server Location --> Select Use Tomcat Installation combo box.
Now close it, save it and try run your server and then rerun the URL.
The error 404 appears when Tomcat can't find the localhost.ser file. In order to get rid of this follow these steps: 1) In Eclipse, right click on server --> Properties --> Click Switch Location --> Apply-->Ok (This will switch the [workspace metadata] location to the installed Tomcat location.) 2) Then go back to server, double click it. This will open Overview tab. Under this tab goto -->Server Location --> Select Use Tomcat Installation combo box.
Now close it, save it and try run your server and then rerun the URL.
The problem is just as drvdijk mentioned, in order to run a webapp on tomcat from eclipse, it needs to be "deployed" to it. This can be done by right clicking the tomcat server -> add and remove
Alternatively, you can try to startup your tomcat server outside of eclipse. Go to your command line and type
$CATALINA_HOME\bin\startup.bat (Windows)
$CATALINA_HOME/bin/startup.sh (Unix)
Where $catalina_home is the directory of where you installed tomcat
If your wanting to see your Tomcat Server Homepage then you will need to specify the server path and deploy path. The default is set to Use workspace metadata (does not modify your Tomcat installation).
How to do it.
Hope this helps!