南来北往

package com.heitian.ssm.utils; import org.apache.pdfbox.pdmodel.PDDocument; import org.apache.pdfbox.text.PDFTextStripper; import org.apache.poi.POIXMLDocument; import org.apache.poi.POIXMLTextExtrac

import com.alibaba.druid.util.StringUtils; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import javax.servlet.http.HttpServletRequest; /** * IP地址 */ public class IPUtils { private s...

package com.zxg.lottery.server.web.demo; import java.util.Random; /** * @program: lucky * @author: Mr.Han * @create: 2019-01-16 14:47 **/ /** * 抽奖算法demo */ public class Lucky { public st...