java課件將表影射成JavaBean的操作就是對(duì)表

Hibernate-ORM將表影射成JavaBean,JavaBean1：org.hibernate..SessionFactoryorg.hibernate.Session-Connection對(duì)象，表示一級(jí)緩存。org.hibernate.Query/SqlQuery-用于執(zhí)行HQL/Native-SQL2：配hibernate.cfg.xmlXxxx.hbm.xml-影射文件，用于配置JavaBean3：Hibernate:Hibernate的插件：4：先安裝插安裝完成以后：出現(xiàn)Hibernate5：了解的hibernate源代碼包的內(nèi)6：快速Hibernate1：創(chuàng)建一個(gè)Java項(xiàng)目Hibernate必須的步2：創(chuàng)建一個(gè)練習(xí)用的數(shù)3：在Java的項(xiàng)目中，創(chuàng)建hibernate.cfg.xml文<?xmlversion="1.0"encoding="UTF-<!DOCTYPEhibernate-configuration"-//Hibernate/HibernateConfigurationDTD3.0//EN""">SQL<property<property<property步4：創(chuàng)建SessionFactory測(cè)試是否可以獲取packageimportimportpublicclassSessionFactoryUtils{privatestaticSessionFactorysf;//通過hibernate.cfg.xml文件，來創(chuàng)建SessionFactory對(duì)Configurationconfignewconfig.configure();//默認(rèn)的//獲取SessionFactorysf=}publicstaticSessionFactoryreturn}}packageimportimportimportorg.hibernate.Session;importorg.hibernate.SessionFactory;importorg.hibernate.jdbc.Work;importorg.junit.Test;importpublicclassDemo01_TestConnection{publicvoidtest1()SessionFactorysf=獲取Sessionsession=session.doWork(newWork由于Sessionpublicvoidexecute(Connectioncon)throwsSQLExceptionSystem.err.println(">>"+con);//}}}步5：創(chuàng)建一個(gè)JavaBean/領(lǐng)域?qū)ο笥糜谂c表一一對(duì)publicclassStud{privateStringid;privateStringname;privateInteger同時(shí)創(chuàng)建一個(gè)影射的XML<?xml<!DOCTYPEhibernate-mapPUBLIC"-//Hibernate/HibernateMapDTD3.0//EN"""><!--一個(gè)類，指定類名及對(duì)應(yīng)的表--<classname="cn.eric..Stud"<idname="id"column="s_id"type="string"<generator<propertyname="name"column="s_name"type="java.lang.String"<propertyname="age"column="s_age"步6：將上面的影射文件配置到的配置文件中7：實(shí)現(xiàn)1：保publicvoidSessionFactorysf=SessionFactoryUtils.sessionFactory();Sessions=sf.openSession();//對(duì)象，不用指定主鍵，指定也不會(huì)使用代碼指定的Studstud=newStud();//s.save(stud);//SQL-insretstud.setId(...)但不會(huì)執(zhí)行這語句s.getTransaction().commit();//此時(shí)才會(huì)執(zhí)行insrt語句寫入數(shù)據(jù)庫(kù)}2：刪publicvoidSessionFactorysf=SessionFactoryUtils.sessionFactory();Sessions=sf.openSession();StudstudnewStud(); s.getTransaction().commit();//此時(shí)才會(huì)執(zhí)行delete}3：修publicvoid}4：查

SessionFactorysf=SessionFactoryUtils.sessionFactory();Sessions=sf.openSession();StudstudnewStud(); s.getTransaction().commit();//此時(shí)才會(huì)執(zhí)行deletepublicvoidquery()SessionFactorysf=SessionFactoryUtils.sessionFactory();Sessions=sf.openSession();Criteriacriteria=s.createCriteria(Stud.class);List<Stud>list=criteria.list();}}7:查詢的方QBC-QueryByHQLHibernateQueryLanguageNative-SQL:原生的SQL語句1：QBC查詢所有記錄直接封裝成publicvoidquery()SessionFactorysf=SessionFactoryUtils.sessionFactory();Sessions=sf.openSession();Criteriacriteria=s.createCriteria(Stud.class);List<Stud>list=criteria.list();}publicvoidquery()SessionFactorysf=SessionFactoryUtils.sessionFactory();Sessions=sf.openSession();Criteriacriteria=.add(Pperty("name"),"name"));List<Stud>list=criteria.list();}2：使用HQL語句查詢出所有的記錄封裝publicvoidquery2()SessionFactorysf=SessionFactoryUtils.sessionFactory();Sessions=sf.openSession();List<Stud>lists.createQuery("fromStud").getResultList();}publicvoidquery2()SessionFactorysf=Sessions=sf.openSession();List<Stud>list=s.createQuery("fromcn.eric..Stud").getResultList();}publicvoidquery2()SessionFactorysfSessionFactoryUtils.sessionFactory();Sessions=sf.openSession();//name是類的成員屬性List<Stud>list=s.createQuery("selectnamefrom}3：使用原生SQL查詢出所有數(shù)publicvoidquery3()SessionFactorysf=SessionFactoryUtils.sessionFactory();Sessions=sf.openSession();List<Stud>lists.createNativeQuery("selects_idasid,s_nameasname,s_ageasagefromstud")//Bean}publicvoid