ublic class SignatureHelper_return { public static String sign(Map params, String privateKey) { Properties properties = new Properties(); for (Iterator iter = params.keySet().iterator(); iter.hasNext();) { String name = (String) iter.next(); Object
Public class BarCodeHelper 条形码帮助类 Public class Base64DEncrypt Base64加解密帮助类 Public class BindDataControl 数据展示控件 绑定数据类 Public class CacheHelper 缓存帮助类 Public class ChineseCalHelper 中国日历 Public class ConvertHelper 处理数据类型转换，数制转换、编码转换相关的类 Public class Coo
