川哥哥

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-configuration PUBLIC
        "-//Hibernate/Hibernate Configuration DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

    <session-factory>

        <!-- Database connection settings 數(shù)據(jù)庫(kù)連接設(shè)置-->
        <!-- 驅(qū)動(dòng)類 -->
        <property name="connection.driver_class">oracle.jdbc.OracleDriver</property><!-- 數(shù)據(jù)庫(kù)驅(qū)動(dòng)語(yǔ)言 -->
        <property name="connection.url">jdbc:oracle:thin:@localhost:1521:orcl</property><!-- 數(shù)據(jù)庫(kù)連接字符串 -->
        <property name="connection.username">cgg</property><!-- 用戶名 -->
        <property name="connection.password">1</property><!-- 密碼 -->
        <!-- SQL dialect （sql的方言）-->
        <property name="dialect">org.hibernate.dialect.Oracle10gDialect</property><!-- 通過oracle數(shù)據(jù)庫(kù)的版本規(guī)定sql方言 -->
        <!-- Echo all executed SQL to stdout 在控制臺(tái)打印后臺(tái)的sql語(yǔ)句-->
        <property name="show_sql">true</property><!-- 可省，展示生成的sql語(yǔ)句 -->
        <!-- 格式化顯示sql -->
        <property name="format_sql">true</property><!-- 可省，將展示出的sql語(yǔ)句格式化-->
        <!-- Drop and re-create the database schema on startup 序列化-->
        <property name="hbm2ddl.auto">update</property><!-- 數(shù)據(jù)庫(kù)的建表語(yǔ)句首選create，之后選擇update -->

　　　　　<!--線程綁定-->
　　　　　<property name="hibernate.current_session_context_class">thread</property>

　　　　<mapping resource="cn/happy/entity/Student.hbm.xml" /><!-- 關(guān)聯(lián)小配置文件 --> 
　　</session-factory> 

</hibernate-configuration>

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE hibernate-mapping PUBLIC
        "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
        "http://www.hibernate.org/dtd/hibernate-mapping-3.0.dtd">

<hibernate-mapping package="cn.happy.entity"><!-- 關(guān)聯(lián)哪個(gè)包下的類 -->
    <class name="Student" table="STUDENT"><!-- 符合一類對(duì)應(yīng)一表 -->
        <id name="sid" column="SID"><!-- 生成主鍵(唯一標(biāo)識(shí)) -->
            <!-- 主鍵生成策略：native: native:如果后臺(tái)是Oracle 后臺(tái)是MySQL，自動(dòng)應(yīng)用自增 -->
            <generator class="increment" />
        </id>
        <property name="sname" type="string" column="NAME" />
        <property name="sage"  type="int" column="AGE"/>
    </class>
</hibernate-mapping>

public class myTest {
    Configuration cfg;
    Session session;
    Transaction tran;
    @Before
    public void myBefore(){
        //讀取并解析配置文件
        cfg=new Configuration().configure("hibernate.cfg.xml");
        //讀取并解析映射信息，創(chuàng)建SessionFactory對(duì)象
        SessionFactory factory = cfg.buildSessionFactory();
        //打開session
        //使用的getCurrentSession()方法，會(huì)自動(dòng)關(guān)閉session
        session = factory.getCurrentSession();
        //開始一個(gè)事務(wù)（增刪改操作必須，查詢操作可選）
        tran=session.beginTransaction();
    }
    @After
    public void myAfter(){
        //結(jié)束事務(wù)
        tran.commit();;
    }
    //添加
    @Test
    public void addTest(){
        Student stu=new Student();
        stu.setSage(18);
        stu.setSname("安哲安哲");
        session.save(stu);
    }
    @Test
    public void findTest(){
        Student stu = session.load(Student.class, 11);
        System.out.print(stu.getSname());
    }
    @Test
    public void upTest(){
        Student stu = session.load(Student.class, 11);
        stu.setSname("安哲大傻逼");
    }
    @Test
    public void delTest(){
        Student stu = session.load(Student.class, 12);
        session.delete(stu);
    }