<? xml?version="1.0"?encoding="gb2312" ?>
<! ?--?Spring?配置文件的DTD?定義-- >
<! DOCTYPE?beans?PUBL工C?"-//SPRING//DTD?BEAN//EN"
''http://www.springfrarnework.org/dtd/sp工rng-beans.dtd" >
<!-- ?Spring?配置文件的根元素是beans -->
???? < beans >
???????? <!-- 定義數(shù)據(jù)源，該bean?的ID?為dataSource-→
????????<bean?id="dataSource"?class="org.springfrarnework.jdbc.datasource.DriverManagerDataSource">
????????????<!--?指定數(shù)據(jù)庫驅(qū)動 -->
???????????? < property? narne ="driverClassNarne" >< value > corn.rnysql.jdbc.Driver </ value ></ property >
???????????? <!-- ?指定連接數(shù)據(jù)庫的URL -->
???????????? < property? narne ="url" >< value > jdbc:rnysql://wonder:3306/j2ee </ value ></ property >
???????????? <!-- root?為數(shù)據(jù)庫的用戶名 -->
???????????? < property? name ="username" >< value > root </ value ></ property >
???????????? <!-- ?pass?為數(shù)據(jù)庫密碼 -->
???????????? < property? name ="password" >< value > pass </ value ></ property >
???????? </ bean >
???????? <!-- 定義Hibernate?的SessionFactory -->
???????? < bean? id ="sessionFactory" ?class ="org.springframework.orm.hibernate3.LocalSessionFactoryBean" >
???????????? <!-- 依賴注入數(shù)據(jù)源，注入上文定義的dataSource -->
???????????? < property? name ="dataSource" >< ref? local ="dataSource" /></ property >
???????????? <!-- mappingResouces屬性用來列出全部映射文件>
????????????<property?name="mappingResources">
????????????????<list>
????????????????????<!--以下用來列出所有的PO?映射文件 -->
???????????????????? < value > lee/MyTest.hbm.xml </ value >
???????????????? </ list >
???????????? </ property >
???????? <!-- 定義Hibernate?的SessionFactory的屬性 --> ????
???????????? < property? name ="hibernateProperties" >
???????????????? < props >
???????????????????? <!-- ?指定Hibernate?的連接方法 -->
???????????????????? < prop? key ="hibernate.dialect" > org.hibernate.dialect.MySQLDialect </ prop >
???????????????????? <! ?不同數(shù)據(jù)庫連接，啟動時選擇create?，?update?，?create-drop-- >
???????????????????? < prop? key ="hibernate.hbm2ddl.auto" > update </ prop >
???????????????? </ props >
???????????? </ property >
???????? </ bean >
???????? <!-- 配置Hibernate?的事務(wù)管理器一〉
????????<!--使用HibernateTransactionManager類，該類是PlatformTransactionManager?接口針對采用Hibernate持久化連接的特定實現(xiàn)。 -->
???????? < bean? id ="transactionManager" ????????class ="org.springframework.orm.hibernate3.HibernateTransactionManager" >
???????? <!-- HibernateTransactionManager?bean?需要依賴注入一個SessionFactory?bean?的引用 -->
???????????? < property? name ="sessionFactory" >
???????????????? < ref? local ="sessionFactory" />
???????????? </ property >
???????? </ bean >
</ beans >

public ? class ?TransactionTest
... {
public ? static ? void ?main(String[]?args)
... {
???? // 因為并未在web?應(yīng)用中測試，故需要手動創(chuàng)建Spring?的上下文
???? final ?ApplicationContext?ctx? = ? new ?FileSystemXrnlApplicationContext( " bean.xml " );
???? // 獲得Spring?上下文的事務(wù)管理器
????PlatformTransactionManager?transactionManager = (PlatformTransactionManager)ctx.getBean( " transactionManager " );
???? final ?SessionFactory?sessionFactory? = ????(SessionFactory)ctx.getBean( " sessionFactory " );
???? // 以事務(wù)管理器實例為參數(shù)，創(chuàng)建TransactionTemplate對象
????TransactionTemplate?tt? = ? new ?TransactionTemplate(transactionManager);
???? // 設(shè)置TransactionTemplate的事務(wù)傳播屬性
????tt.?setPropagationBehavior?(TransactionDefinition.PROPAGATION_REQUlRED);
???? // 執(zhí)行TransactionTemplate的execute方法，該方法需要TransactionCallback實例
????tt.execute( new ?TransactionCallbackWithoutResult()
???? // 采用TransactionCallbackWithoutResult匿名內(nèi)部類的形式執(zhí)行
????protectedvoid?dolnTransactionWithoutResult(TransactionStatus?ts)
???? try
???? ... {
???????? // 以SessionFactory?實例為參數(shù)創(chuàng)建HibernateTemplate
????????HibernateTemplate?hibernateTemplate? =
???????? new ?HibernateTemplate(sessionFactory);
????????MyTestpl? = 丑ew?MyTest?( " Jack " );
???????? // 保存第一個實例
????????hibernateTemplate.save(pl);
???????? // 讓下面的數(shù)據(jù)庫操作拋出異常即可看出事務(wù)效果。前面的操作也
???????? // 不會生效
????????MyTestp2? = ? new ?MyTest?( " Jack " );
???????? // 保存第二個實例，可將Person?的name?屬性設(shè)為標(biāo)識屬性，并
???????? // 引起主鍵重復(fù)的異常，可看出前一條記錄也不會加入數(shù)據(jù)庫中
????????hibernateTemplate.save(p2);
????}
???? catch ?(Exception?e)
???? ... {
????????ts.setRollbackOnly();
????????}
????????}
????????} );
????????}
????????}