java.net.URLEncode编码 与 URLDecode解码问题

public static void main(String[] args) {        try {            String param1 = java.net.URLEncoder.encode("www.bianxianmao.com变现猫", "utf-8");            String param2 = java.net.URLDecoder.decode(param1, "utf-8");            // 这两条语句在同一个页面中的话,得到的结果是:            // param1:www.bianxianmao.com%E5%8F%98%E7%8E%B0%E7%8C%AB            // param2:www.bianxianmao.com变现猫            System.out.println("param1:" + param1);            System.out.println("param2:" + param2);        } catch (UnsupportedEncodingException e) {            // TODO Auto-generated catch block            e.printStackTrace();        }    }