At past , I always use MyEclipse to create and deploy web project.
Today I try to create a new web project by tomcat without MyEclipse . I found it can auto-deploy too.
The steps are:
1, Create a web project
file->new->project->dynamic web project，next -next-->
2, Configure tomat in eclipse.
Make sure you have installed tomcat .
windows->preference->server->Installed Runtimes . Then import your tomcat .
windows->preference->server->Launching . Click "Automatically published".
3，Right click your new project , choose "Run as -> Run on server" . next -next-->
Use "http://localhost:8080/%3Cproject%20name%3E/" to visit from browser.