如何提取路径的一部分并将其作为参数传递给Java中Play框架中的所有操作？

Question

Our paths are something like:

• www.example.org/first/firstaction
• www.example.org/second/firstaction
• www.example.org/first/secondaction
• www.example.org/second/secondaction

We need to get the first part (first, second) of the path for all actions, manipulate it and pass it to the action. I dont want to make the manipulation in every action, so I'm looking for a better way.

Filters might be good, but Filters wrap the action after the action has been looked up by the router. So they are too late for me. Global.onRouteRequest might be better, but I don't understand how to pass parameters to the action neither how to pass to standard routing afterwards.

What would be the best way?

Answer 1

我切换到动作合成：使用动作来操纵路径前缀，并将每个ctx.args.put（）将其传递给每个注释所链接的每个动作。

Answer 2

Try using a split, the '/' as the split:

String[] parts = url.split('/');
String first = parts[1]; // first
String second = parts[2]; // firstaction