Spring4 Declarative Transactions

1. Introducing the TX namespace in the Spring configuration file

xmlns:tx= "Http://www.springframework.org/schema/tx"

2. Configure the transaction manager

<!--Configure the things manager -    <BeanID= "TransactionManager"class= "Org.springframework.jdbc.datasource.DataSourceTransactionManager">        < Propertyname= "DataSource"ref= "DataSource"></ Property>    </Bean>

3. Enable transaction annotations

<!-- Enable transaction Annotations  - <  transaction-manager= "TransactionManager"/>

4. Add @Transactional above the corresponding business code method to indicate that this method is subject to transaction management

// Spring's declarative Transactions    @Transactional    @Override    publicvoid  Purchase (String ISBN, String userName) {        //1. Find the price according to the ISBN        int price=  BOOKSHOPDAO.FINDPRICEBYISBN (ISBN);                 // 2. Stock-1         Bookshopdao.updatebookstock (ISBN);                 // 3. Account Balance-price         bookshopdao.updateaccount (userName, price);    }

Spring4 Declarative Transactions