Spring MVC URL与正则表达式匹配

Question

I'm trying to use the regex possibilities of Spring MVC's RequestMapping to distinguish between several REST APIs:

/somepath/{item:[^&?/]+}/{subitem:[^&?/]+}
/somepath/{item:[^&?/]+}
/somepath

In each case the API returns a totally different JSON object.

Spring MVC has the usually useful habit of conflating multiple slashes or ignoring trailing slashes. However, I need to get around that in this case. So I'm using regular expressions to handle the cases with the path variables are empty ie to stop /somepath//asubitem being matched to the second API rather than the first.

The problem is that when I use a slash character in the regex, the pattern will not match. Just using [^&?]+ matches but obviously this is not quite what I need.

Does anyone have an idea why we have this regex behaviour and how to get around it?

Answer 1

You can try this

/\//ig; //  Matches /

Refer following url for more detail

Forward Slash with a regex