Spring 3批注：无xml声明式事务管理

Question

I am creating a purely annotation driven (xml-less) spring 3 application following the tutorial here

And here's my configuration file

@Bean(name = "dataSource")
public DriverManagerDataSource dataSource() {
    DriverManagerDataSource driverManagerDataSource = new DriverManagerDataSource();
    driverManagerDataSource.setDriverClassName("org.postgresql.Driver");
    driverManagerDataSource.setUrl("jdbc:postgresql://localhost:5432/test");
    driverManagerDataSource.setUsername("postgres");
    driverManagerDataSource.setPassword("gayle");
    return driverManagerDataSource;
}

@Bean(name = "studentJDBCTemplate")
public StudentJDBCTemplate studentJDBCTemplate() {
    StudentJDBCTemplate studentJDBCTemplate = new StudentJDBCTemplate();
    studentJDBCTemplate.setDataSource(dataSource());
    studentJDBCTemplate.setDataSourceTransactionManager(dataSourceTransactionManager());
    studentJDBCTemplate.setJdbcTemplate(new JdbcTemplate());
    return studentJDBCTemplate;
}

@Bean
public DataSourceTransactionManager dataSourceTransactionManager() {
    DataSourceTransactionManager dataSourceTransactionManager = new DataSourceTransactionManager();
    dataSourceTransactionManager.setDataSource(dataSource());
    return dataSourceTransactionManager;
}

Now I'm trying to do declarative transaction management hence my create() method inside StudentJDBCTemplate

public void create(String name, Integer age) {
    System.out.println("Creating!");
    String SQL = "insert into Student (name, age) values (?, ?)";
    jdbcTemplate.update(SQL, name, age);
    System.out.println("Created Record Name=" + name + " Age=" + age);
}

does not programmatically call the transaction manager.

How do I achieve this? Do I have to declare an @Aspect to do this? Is there any annotation that can automatically configure when to commit transactions?

Answer 1

You want to use the @Transactional annotation. Here's the documentation for it. Specifically, go to section 10.5.1. All you need to do is annotate the methods you want to have a transaction wrapped around with the annotation. With the annotation's values you can specify anything you want about the type of transaction.