What is a container mean?

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JTL.zheng - 01 Apr 2007 05:44 GMT

It said that Tomcat is all servlets' container.
what is this container mean?
can I say that JVM is Tomcat or other Java app's container?
or OS is JVM's container?

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Arne Vajhøj - 01 Apr 2007 15:47 GMT

> It said that Tomcat is all servlets' container.
> what is this container mean?
> can I say that JVM is Tomcat or other Java app's container?
> or OS is JVM's container?

Servlets run in a servlet container.
A servlet container runs in a JVM.
A JVM runs in an OS.

But:

A servlet container only runs servlets (incl. those
generated by JSP pages).

A JVM runs servlet containers and many other types
of Java apps.

An OS runs JVM's and many other types of executables.

Arne

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JTL.zheng - 01 Apr 2007 17:22 GMT

Thank you very much.. : )

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