Spring整合Hibernate由兩種形式

1、繼續使用Hibernate的對映檔案*.hbm.xml

2、使用jpa形式的pojo物件， 去掉*.hbm.xml檔案

一、繼續使用Hibernate的對映檔案*.hbm.xml

此時Spring的配置檔案中的SeesionFactory需要使用org.springframework.orm.hibernate.LocalSessionFactoryBean

<bean id="sessionFactory"
	class="org.springframework.orm.hibernate.LocalSessionFactoryBean">
	<property name="dataSource" ref="dataSource" />
	<property name="hibernateProperties">
		<props>
			<prop key="hibernate.dialect">org.hibernate.dialect.SQLServerDialect</prop>
			<prop key="hibernate.show_sql">true</prop>
			<prop key="hibernate.format_sql">true</prop>
		</props>
	</property>
</bean>
 

mappingResources、mappingLocations、mappingDirectoryLocations與mappingJarLocations 

1、mappingResources：指定classpath下具體對映檔名 

	/**
	 * Set Hibernate mapping resources to be found in the class path,
	 * like "example.hbm.xml" or "mypackage/example.hbm.xml".
	 * Analogous to mapping entries in a Hibernate XML config file.
	 * Alternative to the more generic setMappingLocations method.
	 * <p>Can be used to add to mappings from a Hibernate XML config file,
	 * or to specify all mappings locally.
	 * @see #setMappingLocations
	 * @see org.hibernate.cfg.Configuration#addResource
	 */
	public void setMappingResources(String... mappingResources) {
		this.mappingResources = mappingResources;
	}
 

<property name="mappingResources">
	<value>example.hbm.xml </value>
</property>

src/mypackage目錄下的example.hbm.xml檔案

<property name="mappingResources">
	<value>mypackage/example.hbm.xml</value>
</property>

2、mappingLocations，可以指定對映檔案的路徑，可以指定classpath路徑下和其他資料夾下的對映檔案

	/**
	 * Set locations of Hibernate mapping files, for example as classpath
	 * resource "classpath:example.hbm.xml". Supports any resource location
	 * via Spring's resource abstraction, for example relative paths like
	 * "WEB-INF/mappings/example.hbm.xml" when running in an application context.
	 * <p>Can be used to add to mappings from a Hibernate XML config file,
	 * or to specify all mappings locally.
	 * @see org.hibernate.cfg.Configuration#addInputStream
	 */
	public void setMappingLocations(Resource... mappingLocations) {
		this.mappingLocations = mappingLocations;
	}

<property name="mappingLocations">
	<value>WEB-INF/mappings/example.hbm.xml </value>
</property>

</pre><pre>

指定classpath下的example.hbm.xml對映檔案

<property name="mappingLocations">
	<value>classpath:example.hbm.xml </value>
</property>

也可以使用*作為萬用字元

3、mappingDirectoryLocations，指定包含對映檔案的資料夾的目錄

	/**
	 * Set locations of directories that contain Hibernate mapping resources,
	 * like "WEB-INF/mappings".
	 * <p>Can be used to add to mappings from a Hibernate XML config file,
	 * or to specify all mappings locally.
	 * @see org.hibernate.cfg.Configuration#addDirectory(java.io.File)
	 */
	public void setMappingDirectoryLocations(Resource... mappingDirectoryLocations) {
		this.mappingDirectoryLocations = mappingDirectoryLocations;
	}

<property name="mappingDirectoryLocations">
	<list>
		<value>WEB-INF/mappings</value>
	</list>
</property>

也可以通過classpath來指出,此處包含classpath路徑下的hbm包下的所有*.hbm.xml檔案   

<property name="mappingDirectoryLocations">
	<list>
		<value>classpath:hbm/</value>
	</list>
</property>

4、mappingJarLocations ，指定載入的對映檔案在jar檔案中

	/**
	 * Set locations of jar files that contain Hibernate mapping resources,
	 * like "WEB-INF/lib/example.hbm.jar".
	 * <p>Can be used to add to mappings from a Hibernate XML config file,
	 * or to specify all mappings locally.
	 * @see org.hibernate.cfg.Configuration#addJar(java.io.File)
	 */
	public void setMappingJarLocations(Resource... mappingJarLocations) {
		this.mappingJarLocations = mappingJarLocations;
	}

<property name="mappingDirectoryLocations">
     <value>WEB-INF/lib/example.hbm.jar</value>
</property>

</pre><p></p><p><span style="line-height:30px"><span style="line-height:21px"><span style="font-family: FangSong_GB2312; font-size: 18px;"></span></span></span></p><p></p><p>二、使用jpa形式的pojo物件， 去掉*.hbm.xml檔案</p><p>此時Spring的配置檔案中的SeesionFactory需要使用<span style="color:rgb(255,0,0);">org.springframework.orm.hibernate3.annotation.AnnotationSessionFactoryBean</span></p><p>AnnotationSessionFactoryBean中查詢jpa註解形式的pojo對映物件的屬性有：annotatedClasses、packagesToScan</p><p>1、annotatedClasses：指定classpath下指定的註解對映實體類的類名</p><p><pre name="code" class="java">/**
 * Specify annotated classes, for which mappings will be read from
 * class-level annotation metadata.
 * @see org.hibernate.cfg.AnnotationConfiguration#addAnnotatedClass(Class)
 */
public void setAnnotatedClasses(Class<?>... annotatedClasses) {
     this.annotatedClasses = annotatedClasses;
}

<property name="annotatedClasses"> <list> <value>com.anyview.entities.ClassTable</value> <value>com.anyview.entities.ClassStudentTable</value> </list> </property>

2、 packagesToScan指定對映檔案的包名

        /**
	 * Specify packages to search using Spring-based scanning for entity classes in
	 * the classpath. This is an alternative to listing annotated classes explicitly.
	 * <p>Default is none. Specify packages to search for autodetection of your entity
	 * classes in the classpath. This is analogous to Spring's component-scan feature
	 * ({@link org.springframework.context.annotation.ClassPathBeanDefinitionScanner}).
	 */
	public void setPackagesToScan(String... packagesToScan) {
		this.packagesToScan = packagesToScan;
	}

<property name="packagesToScan" value="com/anyview/entities/"></property></strong></span>