URLEncode進行url傳遞地址的加密與解密

String encodeStr = URLEncoder.encode("中國", "utf-8");  
System.out.println("處理後:" + encodeStr);  
String decodeStr = URLDecoder.decode(encodeStr, "utf-8");  
System.out.println("解碼:" + decodeStr);  

處理後:%E4%B8%AD%E5%9B%BD  
解碼:中國