hibernate多对一关联关系

package org.lxh.test; import org.hibernate.Session; import org.hibernate.Transaction; import org.junit.BeforeClass; import org.lxh.vo.Article; import org.lxh.vo.Author; import util.HibernateUtil; public class Test { @BeforeClass public static void setUpBeforeClass() throws Exception { } @org.junit.Test public void save(){ Session ses=null; Transaction tr=null; try{ ses=HibernateUtil.getSession(); tr=ses.beginTransaction(); Author author=new Author(); author.setName("chenwill4"); Article article=new Article(); article.setAuthor(author); //建立2个对象的关联 article.setName("老鹰抓小鸡3"); ses.save(author); //将author信息保存 ses.save(article); tr.commit(); //将事务提交，否侧数据不会被保存 }catch(Exception e){ e.printStackTrace(); }finally{ if(ses!=null){ ses.close(); //关闭连接，否则会把数据库卡死 } } } @org.junit.Test public void queryByAuthor(){ Session ses=null; Transaction tr=null; try{ ses=HibernateUtil.getSession(); tr=ses.beginTransaction(); Article art=(Article)ses.get(Article.class, 3); System.out.println("作者的姓名是:"+art.getAuthor().getName()); //通过文章查询作者 tr.commit(); //将事务提交 }catch(Exception e){ e.printStackTrace(); }finally{ if(ses!=null){ ses.close(); //关闭连接，否则会把数据库卡死 } } } }