【免费】HibernateAPI.rar资源-CSDN文库

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《深入理解Hibernate API》 Hibernate，作为Java领域中的一款强大且广泛应用的对象关系映射（ORM）框架，极大地简化了数据库操作。它通过提供一套丰富的API，使得开发人员能够以面向对象的方式处理数据库交互，从而降低了数据库编程的复杂性。本篇文章将深度剖析Hibernate API的核心概念和使用方法。一、Hibernate体系结构 Hibernate主要由Session、SessionFactory和Configuration三个核心组件构成。SessionFactory是线程安全的，用于创建Session实例，而Session则代表了与数据库的一次会话，它是所有数据库操作的入口点。Configuration则负责配置和初始化SessionFactory。二、配置Hibernate 在使用Hibernate之前，我们需要通过Configuration类来配置Hibernate。这通常涉及设置数据库连接信息、加载映射文件等。例如，我们可以通过`configure()`方法加载hibernate.cfg.xml配置文件，然后使用`buildSessionFactory()`生成SessionFactory。三、实体和映射在Hibernate中，实体类对应数据库中的表，实体类的属性对应表中的字段。通过使用注解或XML文件进行映射，我们可以指定数据库表名、字段名以及类型等信息。例如，使用`@Entity`定义实体类，`@Table`指定表名，`@Column`标注字段。四、Session操作 Session提供了多种数据库操作接口，如：保存（save()）、更新（update()）、删除（delete()）、加载（get()）和查询（createQuery()、createSQLQuery()）。此外，Session还支持事务管理，使用begin()开启事务，commit()提交事务，rollback()回滚事务。五、Criteria查询除了传统的HQL（Hibernate Query Language）查询，Hibernate还提供了Criteria API，它允许动态构建查询条件，更加灵活。Criteria API包括DetachedCriteria，用于创建可重用的查询条件，以及Criteria，用于执行实际的查询。六、Hibernate缓存为了提高性能，Hibernate提供了两级缓存机制：一级缓存是Session级别的，每个Session有自己的缓存；二级缓存是SessionFactory级别的，可以跨Session共享。我们还可以配置第三方缓存提供商，如Ehcache，进一步优化性能。七、实体关系映射 Hibernate支持多种关系映射，包括一对一（OneToOne）、一对多（OneToMany）、多对一（ManyToOne）和多对多（ManyToMany）。通过注解或XML配置，我们可以定义实体之间的关联关系，例如，使用`@OneToOne`、`@OneToMany`等。八、延迟加载和懒加载延迟加载（Lazy Loading）是Hibernate的一个重要特性，它意味着关联对象只有在真正需要时才会被加载。例如，使用`@ManyToOne(fetch = FetchType.LAZY)`可以实现懒加载，避免了不必要的数据库查询。九、事件监听和拦截器 Hibernate提供了一套事件监听机制，允许我们在特定的数据库操作前后执行自定义逻辑。同时，拦截器（Interceptor）提供了更细粒度的控制，可以在Session级别的操作前、后，甚至每个单独的持久化操作前后执行代码。十、性能优化优化Hibernate应用涉及到多个方面，包括合理设计数据库表结构、选择合适的查询方式、使用缓存、避免N+1查询问题、减少对象状态的转换等。理解和熟练掌握Hibernate API，有助于我们在开发过程中做出正确的决策，提高应用程序的性能。 Hibernate API是Java开发人员处理数据库操作的强大工具，通过深入理解并熟练运用其各项功能，我们可以构建出高效、易于维护的数据库驱动的应用程序。无论是初学者还是经验丰富的开发者，都应该对Hibernate API有深入的了解，以便更好地利用它来提升开发效率和软件质量。

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Hibernate API.rar （2000个子文件）

jdstyle.css 2KB

index-all.html 4.1MB

HibernateException.html 1.25MB

SessionImplementor.html 610KB

serialized-form.html 560KB

AbstractEntityPersister.html 416KB

Type.html 373KB

overview-tree.html 304KB

SessionImpl.html 300KB

constant-values.html 263KB

MappingException.html 253KB

SessionFactoryImplementor.html 245KB

ResultSetWrapper.html 218KB

AbstractCollectionPersister.html 212KB

CollectionPersister.html 170KB

EntityMode.html 167KB

allclasses-frame.html 161KB

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EntityPersister.html 152KB

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Collection.html 100KB

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Property.html 65KB

AbstractType.html 64KB

PostgreSQLDialect.html 64KB

AbstractBatcher.html 63KB

HibernateService.html 63KB

Oracle9Dialect.html 62KB

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">  <HTML> <HEAD>  <TITLE> Index (Hibernate API Documentation) </TITLE> <LINK REL ="stylesheet" TYPE="text/css" HREF="jdstyle.css" TITLE="Style"> <SCRIPT type="text/javascript"> function windowTitle() { parent.document.title="Index (Hibernate API Documentation)"; } </SCRIPT> </HEAD> <BODY BGCOLOR="white" onload="windowTitle();">  <A NAME="navbar_top"></A> <A HREF="#skip-navbar_top" title="Skip navigation links"></A> <TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""> <TR> <TD COLSPAN=3 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A NAME="navbar_top_firstrow"></A> <TABLE BORDER="0" CELLPADDING="0" CELLSPACING="3" SUMMARY=""> <TR ALIGN="center" VALIGN="top"> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="overview-summary.html">Overview</A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> Package </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> Class </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> Use </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="overview-tree.html">Tree</A> </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="deprecated-list.html">Deprecated</A> </TD> <TD BGCOLOR="#FFFFFF" CLASS="NavBarCell1Rev">  Index </TD> <TD BGCOLOR="#EEEEFF" CLASS="NavBarCell1"> <A HREF="help-doc.html">Help</A> </TD> </TR> </TABLE> </TD> <TD ALIGN="right" VALIGN="top" ROWSPAN=3> </TD> </TR> <TR> <TD BGCOLOR="white" CLASS="NavBarCell2">  PREV   NEXT</TD> <TD BGCOLOR="white" CLASS="NavBarCell2"> <A HREF="index.html" target="_top">FRAMES</A>    <A HREF="index-all.html" target="_top">NO FRAMES</A>    <SCRIPT type="text/javascript">  </SCRIPT> <NOSCRIPT> <A HREF="allclasses-noframe.html">All Classes</A> </NOSCRIPT> </TD> </TR> </TABLE> <A NAME="skip-navbar_top"></A>  <A HREF="#_A_">A</A> <A HREF="#_B_">B</A> <A HREF="#_C_">C</A> <A HREF="#_D_">D</A> <A HREF="#_E_">E</A> <A HREF="#_F_">F</A> <A HREF="#_G_">G</A> <A HREF="#_H_">H</A> <A HREF="#_I_">I</A> <A HREF="#_J_">J</A> <A HREF="#_K_">K</A> <A HREF="#_L_">L</A> <A HREF="#_M_">M</A> <A HREF="#_N_">N</A> <A HREF="#_O_">O</A> <A HREF="#_P_">P</A> <A HREF="#_Q_">Q</A> <A HREF="#_R_">R</A> <A HREF="#_S_">S</A> <A HREF="#_T_">T</A> <A HREF="#_U_">U</A> <A HREF="#_V_">V</A> <A HREF="#_W_">W</A> <A HREF="#_X_">X</A> <A HREF="#_Y_">Y</A> <A HREF="#___">_</A> <HR> <A NAME="_A_"></A><H2> A</H2> <DL> <DT><A HREF="org/hibernate/engine/Cascade.html#AFTER_EVICT">AFTER_EVICT</A> - Static variable in class org.hibernate.engine.<A HREF="org/hibernate/engine/Cascade.html" title="class in org.hibernate.engine">Cascade</A> <DD>A cascade point that occurs just after eviction of the parent entity from the session cache <DT><A HREF="org/hibernate/engine/Cascade.html#AFTER_INSERT_BEFORE_DELETE">AFTER_INSERT_BEFORE_DELETE</A> - Static variable in class org.hibernate.engine.<A HREF="org/hibernate/engine/Cascade.html" title="class in org.hibernate.engine">Cascade</A> <DD>A cascade point that occurs just after the insertion of the parent entity and just before deletion <DT><A HREF="org/hibernate/engine/Cascade.html#AFTER_INSERT_BEFORE_DELETE_VIA_COLLECTION">AFTER_INSERT_BEFORE_DELETE_VIA_COLLECTION</A> - Static variable in class org.hibernate.engine.<A HREF="org/hibernate/engine/Cascade.html" title="class in org.hibernate.engine">Cascade</A> <DD>A cascade point that occurs just after the insertion of the parent entity and just before deletion, inside a collection <DT><A HREF="org/hibernate/engine/Cascade.html#AFTER_LOCK">AFTER_LOCK</A> - Static variable in class org.hibernate.engine.<A HREF="org/hibernate/engine/Cascade.html" title="class in org.hibernate.engine">Cascade</A> <DD>A cascade point that occurs just after refreshing a parent entity <DT><A HREF="org/hibernate/ConnectionReleaseMode.html#AFTER_STATEMENT">AFTER_STATEMENT</A> - Static variable in class org.hibernate.<A HREF="org/hibernate/ConnectionReleaseMode.html" title="class in org.hibernate">ConnectionReleaseMode</A> <DD>Indicates that JDBC connection should be aggressively released after each SQL statement is executed. <DT><A HREF="org/hibernate/ConnectionReleaseMode.html#AFTER_TRANSACTION">AFTER_TRANSACTION</A> - Static variable in class org.hibernate.<A HREF="org/hibernate/ConnectionReleaseMode.html" title="class in org.hibernate">ConnectionReleaseMode</A> <DD>Indicates that JDBC connections should be released after each transaction ends (works with both JTA-registered synch and HibernateTransaction API). <DT><A HREF="org/hibernate/engine/Cascade.html#AFTER_UPDATE">AFTER_UPDATE</A> - Static variable in class org.hibernate.engine.<A HREF="org/hibernate/engine/Cascade.html" title="class in org.hibernate.engine">Cascade</A> <DD>A cascade point that occurs just after update of the parent entity <DT><A HREF="org/hibernate/hql/antlr/HqlSqlTokenTypes.html#AGGREGATE">AGGREGATE</A> - Static variable in interface org.hibernate.hql.antlr.<A HREF="org/hibernate/hql/antlr/HqlSqlTokenTypes.html" title="interface in org.hibernate.hql.antlr">HqlSqlTokenTypes</A> <DD>  <DT><A HREF="org/hibernate/hql/antlr/HqlTokenTypes.html#AGGREGATE">AGGREGATE</A> - Static variable in interface org.hibernate.hql.antlr.<A HREF="org/hibernate/hql/antlr/HqlTokenTypes.html" title="interface in org.hibernate.hql.antlr">HqlTokenTypes</A> <DD>  <DT><A HREF="org/hibernate/hql/antlr/SqlTokenTypes.html#AGGREGATE">AGGREGATE</A> - Static variable in interface org.hibernate.hql.antlr.<A HREF="org/hibernate/hql/antlr/SqlTokenTypes.html" title="interface in org.hibernate.hql.antlr">SqlTokenTypes</A> <DD>  <DT><A HREF="org/hibernate/hql/antlr/HqlSqlTokenTypes.html#ALIAS">ALIAS</A> - Static variable in interface org.hibernate.hql.antlr.<A HREF="org/hibernate/hql/antlr/HqlSqlTokenTypes.html" title="interface in org.hibernate.hql.antlr">HqlSqlTokenTypes</A> <DD>  <DT><A HREF="org/hibernate/hql/antlr/HqlTokenTypes.html#ALIAS">ALIAS</A> - Static variable in interface org.hibernate.hql.antlr.<A HREF="org/hibernate/hql/antlr/HqlTokenTypes.html" title="interface in org.hibernate.hql.antlr">HqlTokenTypes</A> <DD>  <DT><A HREF="org/hibernate/hql/antlr/SqlTokenTypes.html#ALIAS">ALIAS</A> - Static variable in interface org.hibernate.hql.antlr.<A HREF="org/hibernate/hql/antlr/SqlTokenTypes.html" title="interface in org.hibernate.hql.antlr">SqlTokenTypes</A> <DD>  <DT><A HREF="org/hibernate/hql/antlr/HqlSqlTokenTypes.html#ALIAS_REF">ALIAS_REF</A> - Static variable in interface org.hibernate.hql.antlr.<A HREF="org/hibernate/hql/antlr/HqlSqlTokenTypes.html" title="interface in org.hibernate.hql.antlr">HqlSqlTokenTypes</A> <DD>  <DT><A HREF="org/hibernate/hql/antlr/SqlTokenTypes.html#ALIAS_REF">ALIAS_REF</A> - Static variable in interface org.hibernate.hql.antlr.<A HREF="org/hibernate/hql/antlr/SqlTokenTypes.html" title="interface in org.hibernate.hql.antlr">SqlTokenTypes</A> <DD>  <DT><A