Changing app.servlet.version does not affect web.xml

问题

Is there an issue to set the app.servlet.version to 3.0 in the application.properties for grails 2.0?

I created a new app, added the line app.servlet.version=3.0 to the application.properties and executed grails war (even tried clean before). However the web.xml still starts with:

<web-app         xmlns="http://java.sun.com/xml/ns/javaee" 
               version="2.5" 
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">

Iwould have expected to see 3.0. I also tried this Procedere with 2.4 and it is still 2.5. Is it the wrong place, which I am looking at?

回答1:

It looks like, that you need to change the BuildConfig.groovy as well, in order to achieve servlet version 3.0 in your web.xml. Add the following line into a plain grails project and the web.xml will start with desired version 3.0:

grails.servlet.version = "3.0"

来源：https://stackoverflow.com/questions/8615596/changing-app-servlet-version-does-not-affect-web-xml