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You can access your app in your web browser at http://localhost:8888/apps/yourappnamehere/ and it will automatically go to EntryAction. If you have more than one entry point you will need to specify which action to go to. For SAP apps, you do not need to specify sapSystemId as this is configured in your site/ApplicationLocal.properties file (the r3default property). If you want to access your localhost from a different IP address, you will need to know the name. You can get this info by bringing up the Command Prompt and ping localhost. The response will be something like Pinging fss-115-2.mit.edu ... fss-115-2.mit.edu should replace loaclhost in the URL above.
When you rebuild your app, you can either do Run As again or you can right click your server and select Publish.
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