java base64编码解码

/**
     * @Description base64编码
     * @param
     * @return
     */
    public static String encode(String str){
        String base64Str = "";
        try{
            //String -> byte[]
            byte[] data = str.getBytes("utf-8");
            base64Str = DatatypeConverter.printBase64Binary(data);
        }catch (Exception e){
            e.printStackTrace();
        }
        return base64Str;
    }

    /**
     * @Description base64解码
     * @param
     * @return
     */
    public static String decode(String base64Str){
        String str = "";
        byte[] base64Data = DatatypeConverter.parseBase64Binary(base64Str);
        try{
            str = new String(base64Data,"utf-8");
        }catch (Exception e){
            e.printStackTrace();
        }
        return str;
    }