文件配置spring方法

111

识别配置文件

@Configuration

包扫描

@ComponentScan("com.zhang")

aop注解识别
@EnableAspectJAutoProxy

引入properties文件

@PropertySource("jdbc.properties")

引入其他配置文件
@Import(Assembly2.class)
public class Assembly {

创建bean对象
    @Bean
    public MyTransactionManager4 createMtr(DataSource ds){
        MyTransactionManager4 manager = new MyTransactionManager4();
        manager.setDataSource(ds);
        return manager;
    }
}

@Configuration
public class Assembly2 {
    @Value("${jdbc.url}")
    private String url;
    @Value("${jdbc.driver}")
    private String driverClassName;
    @Value("${jdbc.username}")
    private String username;
    @Value("${jdbc.password}")
    private String password;

    @Bean(initMethod = "init",destroyMethod = "close")
    public DruidDataSource createDataSouce(){
        DruidDataSource dataSource = new DruidDataSource();
        dataSource.setUrl(url);
        dataSource.setDriverClassName(driverClassName);
        dataSource.setUsername(username);
        dataSource.setPassword(password);
        dataSource.setInitialSize(2);
        return dataSource;
    }
}