Java 6中的URL解码

import java.net.URLDecoder;
import java.io.UnsupportedEncodingException;

public class URLDecodeExample {
    public static void main(String[] args) {
        String encodedUrl = "https%3A%2F%2Fwww.example.com%2Fpage%3Fparam%3Dvalue";
        
        try {
            String decodedUrl = URLDecoder.decode(encodedUrl, "UTF-8");
            System.out.println("Decoded URL: " + decodedUrl);
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
    }
}