I am new to Framework 2.0. In Play 1.0, after you Eclipsify your project, you have have a *.launch file that you can use to launch your project.
After you eclipsify in
Question 1:
After you have eclipsified, open Eclipse and choose File -> Import... -> Existing Projects into Workspace. A dialog will open, choose your Play Framework 2.0 project folder and click Finish.
Question 2:
Start your Play Framework application using play debug run. You will see something like this:
Listening for transport dt_socket at address: 9999 ...
In Eclipse, right-click on your project in Project Explorer and choose Debug As -> Debug Configurations....
A new dialog called Debug Configurations will open. Double-click on Remote Java Application and a new window will appear on the right side. Change the Connection properties so that the point to host localhost and port 9999. Confirm by clicking the Debug button.
Put a breakpoint in your Application in Eclipse.
Try your application as normal in a web-browser. If it hits a breakpoint then Eclipse will be brought as frontmost and let you debug.