Append relative URL to java.net.URL

Question

Provided I have a java.net.URL object, pointing to let's say

http://example.com/myItems or http://example.com/myItems/

Is there some helper somewhere to append some relative URL to this? For instance append ./myItemId or myItemId to get : http://example.com/myItems/myItemId

question from:https://stackoverflow.com/questions/7498030/append-relative-url-to-java-net-url

Answer 1

This one does not need any extra libs or code and gives the desired result:

//import java.net.URL;
URL url1 = new URL("http://petstore.swagger.wordnik.com/api/api-docs?foo=1&bar=baz");
URL url2 = new URL(url1.getProtocol(), url1.getHost(), url1.getPort(), url1.getPath() + "/pet" + "?" + url1.getQuery(), null);
System.out.println(url1);
System.out.println(url2);

This prints:

http://petstore.swagger.wordnik.com/api/api-docs?foo=1&bar=baz
http://petstore.swagger.wordnik.com/api/api-docs/pet?foo=1&bar=baz

The accepted answer only works if there is no path after the host (IMHO the accepted answer is wrong)