package com.akaxin.site.web.admin.common; import org.apache.commons.lang3.StringUtils; /** * 消息工具类 * * @author Sam{@link an.guoyue254@gmail.com} * @since 2018-04-25 11:49:21 */ public class MsgUtils { public static String buildU2MsgId(String siteUserid) { StringBuilder sb = new StringBuilder("U2-"); if (StringUtils.isNotEmpty(siteUserid)) { int len = siteUserid.length(); sb.append(siteUserid.substring(0, len >= 8 ? 8 : len)); sb.append("-"); } sb.append(System.currentTimeMillis()); return sb.toString(); } }