Sitemed did not heard it before. So I went to see it.
Basically, it is convenient. Only a few TAGs are small, but it satisfies more than 80% of the needs.
From the technical aspect, there is nothing new, although the crown is named Decorator mode.
From a pure technical perspective, 俺 宁 宁 宁 选择 功能 功能 远 方案 方案 方案 方案 方案 方案 方案 方案 方案Although Sitemesh DecoratorMappers is more (annoying, each mapper usage does not seem to have no direct documentation, there is only the source file), but there are more than Cocoon.
The benefits of comparing cocoon or 俺 自己 自己 自己 x x:
Simple and possible performance is better to support Velocity, FreeMaker, etc.
Comparison ...
The function is not strong enough (it can be better than XPATH in this label?), Only solved a small problem. Some tags are no Neat, such as taking elementality properties, such as annoying eNCoding. I don't need velocity, freemaker ... anyway, not cool,% # $% # ^ #
Conclusion: Use can, but I am not used. OVER.