CODEWITHSUNDEEP
java
Jay
Jay

Reputation: 1356

Match certain part of URI

I need to parse into a variable a certain part of a URI for a Spring filter I am writing. I am trying to extract out a username, which could be the last part of the URI, part of a more complex URI or contain query string parameters after the username.

Example inputs

In each case I would like to end up with a string containing "jay". Would simply using indexOf be appropriate here, or is this better suited to a regex? I have limited experience with regular expressions in Java so any help is appreciated. Thanks!

Upvotes: 1

Views: 68

Answers (1)

aioobe
aioobe

Reputation: 421030

To do this properly I suggest you use the URI class.

URI users = URI.create("/users"); // Can be put as a final static field

URI uri = URI.create(uriString);  // Can be skipped if you have a URI as input

String afterUsers = users.relativize(uri).getPath();
if (afterUsers.isEmpty())
    System.out.println("No user");
else
    System.out.println("User: " + afterUsers.split("/", 2)[0]);

Upvotes: 4

Related Questions