How to escape forward slash in request to make url-routers count it as part of uri parameter?

问题

I have following route mapping using gorilla/mux:

router.Handle("/v1/data/{param}", handler)

when I call curl http://localhost:8080/v1/data/hello%2Fworld I get 404 response code. The problem is that in my microservice I would like to interpret everything that goes after /v1/data/ as param.

Code that's capturing params is following:

uriP := mux.Vars(r)
param := uriP["param"]

Is it possible to achieve this using gorilla/mux or any other router?

回答1:

You should add regexp, bc default regexp is matching until / or ? symbols.

router.Handle("/v1/data/{param:.*}", handler)

回答2:

For your question:

Is it possible to achieve this using gorilla/mux or any other router?

Yes it is possible using gorilla/mux. There is nothing wrong in the code you have posted.

The error is page not found which means the url that you are passing is not registered with the mux router.

Pass http://localhost:8080/v1/data/hello world on browser. route will capture any parameter after the defined url. Also print the captured url path inside handler request struct to see what is the requested url as:

fmt.Println(r.URL.Path)
uriP := mux.Vars(r)
param := uriP["param"]

来源：https://stackoverflow.com/questions/51634411/how-to-escape-forward-slash-in-request-to-make-url-routers-count-it-as-part-of-u