单选题Which is the true choice about the web container request processing model（）？AThe init method on a filter is called the first time a servlet mapped to that filter is invokedBA filter defined for a servlet must always forward control to the next resource
题目
单选题
Which is the true choice about the web container request processing model（）？
A
The init method on a filter is called the first time a servlet mapped to that filter is invoked
B
A filter defined for a servlet must always forward control to the next resource in the filter chain.
C
Filters associated with a named servlet are applied in the order they appear in the web application deployment descriptor file
D
If the init method on a filter throws an UnavailableException， then the container will make no further attempt to execute it