How to do URL decoding in Java?

Question

In Java, I want to convert this:

https%3A%2F%2Fmywebsite%2Fdocs%2Fenglish%2Fsite%2Fmybook.do%3Frequest_type

To thi

Answer 1

I use apache commons

String decodedUrl = new URLCodec().decode(url);

The default charset is UTF-8