当返回一个ModelAndView时,可以使用其addObject(Object obj)方法,此时的约定是:
- An
x.y.User
instance added will have the nameuser
generated. - An
x.y.Registration
instance added will have the nameregistration
generated. - An
x.y.Foo
instance added will have the namefoo
generated. - A
java.util.HashMap
instance added will have the namehashMap
generated. You probably want to be explicit about the name in this case becausehashMap
is less than intuitive. - Adding
null
will result in anIllegalArgumentException
being thrown. If the object (or objects) that you are adding could benull
, then you will also want to be explicit about the name.
还有:
- An
x.y.User[]
array with zero or morex.y.User
elements added will have the nameuserList
generated. - An
x.y.Foo[]
array with zero or morex.y.User
elements added will have the namefooList
generated. - A
java.util.ArrayList
with one or morex.y.User
elements added will have the nameuserList
generated. - A
java.util.HashSet
with one or morex.y.Foo
elements added will have the namefooList
generated. - An empty
java.util.ArrayList
will not be added at all (in effect, theaddObject(..)
call will essentially be a no-op).
官方文档链接:
http://docs.spring.io/spring/docs/current/spring-framework-reference/html/mvc.html#mvc-coc
时间: 2024-10-22 16:04:29