URLDecoder

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

public class TestEncode {

	/**
	 * @param args
	 */
	public static void main(String[] args) 
	{
		// TODO Auto-generated method stub
		String urlEncodeUserName = new String("%E5%AD%99%E8%89%BA%E7%8F%8D");
		try {
			String name=URLDecoder.decode(urlEncodeUserName,"utf-8");
			System.out.println(name);
		} catch (UnsupportedEncodingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

}