体彩7位数生成器

百无聊赖,以前曾有朋友要我写个体彩生成器,要求生成之前没有出现过的数字,水平有限,没折腾出来,现在有了hibernate简化了数据库部分的处理,(哈哈,在这里真是大材小用了)

关键代码如下,写的少许罗嗦,有兴趣的可以加以改良

 

随机生成10个数,从数据库中比较是否存在相同值

package mytc.test;import java.util.ArrayList;import java.util.List;import java.util.Random;import mytc.model.Sevmodel;import mytc.util.HibernateUtil;import org.hibernate.Query;import org.hibernate.Session;import org.junit.Test;public class GetNum {private Session session = HibernateUtil.getSessionFactory().getCurrentSession();public List<Sevmodel> snums = new ArrayList<Sevmodel>();String mynum = "";String pnum = "";Random rm = new Random();Sevmodel smd = new Sevmodel();@Testpublic void t() {for (int j = 0; j < 10; j++) {for (int i = 0; i < 7; i++) {smd.setSa(rm.nextInt(10) + "");smd.setSb(rm.nextInt(10) + "");smd.setSc(rm.nextInt(10) + "");smd.setSd(rm.nextInt(10) + "");smd.setSe(rm.nextInt(10) + "");smd.setSf(rm.nextInt(10) + "");smd.setSg(rm.nextInt(10) + "");}session.beginTransaction();Query qy = session.createQuery("from Sevmodel sm where sm.sa=:ca and "+ "sm.sb=:cb and " + "sm.sc=:cc and "+ "sm.sd=:cd and " + "sm.se=:ce and "+ "sm.sf=:cf and " + "sm.sg=:cg ");qy.setString("ca", smd.getSa());qy.setString("cb", smd.getSb());qy.setString("cc", smd.getSc());qy.setString("cd", smd.getSd());qy.setString("ce", smd.getSe());qy.setString("cf", smd.getSf());qy.setString("cg", smd.getSg());List result = qy.list();if (result.size() == 0) {System.out.print(smd.getSa() + smd.getSb() + smd.getSc()+ smd.getSd() + smd.getSe() + smd.getSf()+ smd.getSg());System.out.print(" 唯一");System.out.println();} else {System.out.print(smd.getSa() + smd.getSb() + smd.getSc()+ smd.getSd() + smd.getSe() + smd.getSf()+ smd.getSg());System.out.print(" 重复");}}}}

 

完整代码我已上传到我的资源中:java版体彩7位数生成器

相关hibernate的jar文件请自行解决,当前版本hibernate3.5,相关的数据从体彩网下载后倒入数据库即可