URLEncode进行url传递地址的加密与解密

String encodeStr = URLEncoder.encode("中国", "utf-8");  
System.out.println("处理后:" + encodeStr);  
String decodeStr = URLDecoder.decode(encodeStr, "utf-8");  
System.out.println("解码:" + decodeStr);  

处理后:%E4%B8%AD%E5%9B%BD  
解码:中国