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

public class EncodeAndDecode {
  public static void main(String[] args) {
         try {
          System.out.println(URLDecoder.decode("%D6%D0%CE%C4%B9%FA%BC%CA","GBK"));/* GBK编码转中文 */
             System.out.println(URLEncoder.encode("中文国际","GBK")); /* 中文编码转GBK */
             System.out.println(URLDecoder.decode("%E4%B8%AD%E6%96%87%E5%9B%BD%E9%99%85","UTF-8"));/* UTF-8编码转中文 */
             System.out.println(URLEncoder.encode("中文国际","UTF-8")); /* UTF-8编码转中文 */
         } catch (UnsupportedEncodingException ex) {
            
         }       
     }
}