Java EE – for web What is the meaning of false in the servlet definition in XML?

It seems that servlet's web XML has an element named

<enabled>false</enabled>

This can be placed in the service definition

<servlet>
    <servlet-name>example</servlet-name>
    <servlet-class>com.example.TestServlet</servlet-class>
    <load-on-startup>100</load-on-startup>
    <enabled>false</enabled>
</servlet>

Is the ability of the servlet to process requests enabled? I noticed that even if I set enabled to false, the init method of servelt will be called Searching through servlet spec PDF does not provide an explanation of the meaning of < enabled > In fact, I can't even find the string < enabled > in the servlet 3.0 specification

Solution

From java servlet 3.0 specification, 8.2 3 see the PDF:

Editor: This is another article on the exact topic: how to make sure that servlet is not loaded?

Edit 2: (place a summary of the following comments here) in Tomcat 7 (version 7.0.25), it seems that the servlet will initialize, but the request for its URL pattern will respond with status code 503 (sc_service_unavailable)