Do i need to install java ee7 to develop web application if i have se 8.45

I'm new to java web application and just followed some courses on servlets and jsp. But now i'm starting on a new course where i should learning the basics of spring. Where they notice i should download java ee. but everything worked without installing Java ee on the previous course.

I know these are silly questions but i can't find a proper answer...

Some questions.

From the site of oracle: The Java EE 7 SDK Update 1 or Java EE 7 Web Profile SDK Update 1 is extracted into a new glassfish4 directory under your current directory.

How can i download java ee7 without the glassfish server so i can deploy the web application on a tomcat or wildfly server?

If i create web application should i use java ee 7 as external libary instead of se 8.45 .

Do i need to install new windows environment variables for java ee7. like JAVA_HOME for se?

Or don't i need java ee for spring web application ?