• 吴裕雄--天生自然轻量级JAVA EE企业应用开发Struts2Sping4Hibernate整合开发学习笔记:Hibernate使用@Transient修饰不想持久保持的属性


    <?xml version="1.0" encoding="GBK"?>
    <project name="hibernate" basedir="." default="">
        <property name="src" value="src"/>
        <property name="dest" value="classes"/>
    
        <path id="classpath">
            <fileset dir="../../lib">
                <include name="**/*.jar"/>
            </fileset>
            <pathelement path="${dest}"/>
        </path>
    
        <target name="compile" description="Compile all source code">
            <delete dir="${dest}"/>
            <mkdir dir="${dest}"/>
            <copy todir="${dest}">
                <fileset dir="${src}">
                    <exclude name="**/*.java"/>
                </fileset>        
            </copy>
            <javac destdir="${dest}" debug="true" includeantruntime="yes"
                deprecation="false" optimize="false" failonerror="true">
                <src path="${src}"/>
                <classpath refid="classpath"/>
                <compilerarg value="-Xlint:deprecation"/>
            </javac>
        </target>
    
        <target name="run" description="Run the main class" depends="compile">
            <java classname="lee.NewsManager" fork="yes" failonerror="true">
                <classpath refid="classpath"/>
            </java>
        </target>
    
    </project>
    package lee;
    
    import org.hibernate.*;
    import org.hibernate.cfg.*;
    import org.hibernate.service.*;
    import org.hibernate.boot.registry.*;
    import org.crazyit.app.domain.*;
    
    /**
     * Description:
     * <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
     * <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
     * <br/>This program is protected by copyright laws.
     * <br/>Program Name:
     * <br/>Date:
     * @author  Yeeku.H.Lee kongyeeku@163.com
     * @version  1.0
     */
    public class NewsManager
    {
        public static void main(String[] args)
            throws Exception
        {
            // 实例化Configuration,
            Configuration conf = new Configuration()
            // 不带参数的configure()方法默认加载hibernate.cfg.xml文件,
            // 如果传入abc.xml作为参数,则不再加载hibernate.cfg.xml,改为加载abc.xml
                .configure();
            ServiceRegistry serviceRegistry = new StandardServiceRegistryBuilder()
                .applySettings(conf.getProperties()).build();
            // 以Configuration实例创建SessionFactory实例
            SessionFactory sf = conf.buildSessionFactory(serviceRegistry);
            // 创建Session
            Session sess = sf.openSession();
            // 开始事务
            Transaction tx = sess.beginTransaction();
            // 创建消息对象
            News n = new News();
            // 设置消息标题和消息内容
            n.setTitle("疯狂Java联盟成立了");
            n.setContent("疯狂Java联盟成立了,"
                + "网站地址http://www.crazyit.org");
            // 保存消息
            sess.save(n);
            // 提交事务
            tx.commit();
            // 关闭Session
            sess.close();
            sf.close();
        }
    }
    package org.crazyit.app.domain;
    
    import javax.persistence.*;
    /**
     * Description:
     * <br/>网站: <a href="http://www.crazyit.org">疯狂Java联盟</a>
     * <br/>Copyright (C), 2001-2016, Yeeku.H.Lee
     * <br/>This program is protected by copyright laws.
     * <br/>Program Name:
     * <br/>Date:
     * @author  Yeeku.H.Lee kongyeeku@163.com
     * @version  1.0
     */
    @Entity
    @Table(name="news_inf")
    public class News
    {
        // 消息类的标识属性
        @Id
        @GeneratedValue(strategy=GenerationType.IDENTITY)
        private Integer id;
        // 消息标题
        // @Column指定该属性映射的列信息,此处指定了列名、长度
        @Column(name="news_title" , length=50)
        private String title;
        // 消息内容
        @Transient
        private String content;
    
        // id的setter和getter方法
        public void setId(Integer id)
        {
            this.id = id;
        }
        public Integer getId()
        {
            return this.id;
        }
    
        // title的setter和getter方法
        public void setTitle(String title)
        {
            this.title = title;
        }
        public String getTitle()
        {
            return this.title;
        }
    
        // content的setter和getter方法
        public void setContent(String content)
        {
            this.content = content;
        }
        public String getContent()
        {
            return this.content;
        }
    }
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  • 原文地址:https://www.cnblogs.com/tszr/p/12367202.html
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