Java掩码的几种使用例举

 private static String nameMask(String name) throws Exception { if(name ==null)throw new Exception("请输入要掩码的字符串"); if(name.length()<=1) return name+"*"; return name.replaceAll("([//u4e00-//u9fa5]{1})(.*)", "$1"+createAsterisk(name.length()-1)); } private static String createAsterisk(int len) { StringBuffer sb = new StringBuffer(); for(int i=0;i<len;i++){  sb.append("*"); } return sb.toString(); }

/** * 对客户证件号码做掩码 *  * */ public static String maskCertId(String certId) throws Exception { if(certId==null||certId.length()==0) return ""; if(certId.length()==18) {  String v = certId.substring(0,4);  String end = certId.substring(certId.length()-4);  return v+StringUtils.repeat("*",8)+end; } else  return ""; }

/** * 对客户姓名做掩码 * @throws JBOException  * */ public static String maskUserName(String userName) throws Exception { if(userName==null||userName.length()==0) return ""; String v = userName.substring(0,1); return StringUtils.rightPad(v, userName.length(),"*");//StringUtils.rightPad方法做一个字符串右补齐 }

/** * 对字符串进行脱敏处理 * @param word 被脱敏的字符 * @param startLength 被保留的开始长度 0代表不保留 * @param endLength 被保留的结束长度 0代表不保留 * @param pad 填充字符 * */ public static String wordMask(String word,int startLength ,int endLength,String pad)  { if(word==null) return StringUtils.leftPad("", startLength+endLength,pad); if(word.length()<=startLength+endLength) return StringUtils.leftPad("", startLength+endLength,pad); String startStr = ""; String endStr = ""; int padLength = 0; if(word.length()>startLength) startStr = StringUtils.substring(word, 0,startLength); if(word.length()>startLength+endLength) endStr = StringUtils.substring(word, word.length()-endLength); padLength = word.length()-startLength-endLength; return startStr + StringUtils.repeat(pad, padLength)+endStr; }