public class MyContext implements ApplicationContextAware { private static ApplicationContext context;// 声明一个静态变量保存 @Override public void setApplicationContext(ApplicationContext context) throws BeansException { // TODO Auto-generated method stub this.context = context; } public static ApplicationContext getContext() { return context; } }
2:在applicationContext.xml里面注入该类,
<bean class="com.util.MyContext"></bean>
这样就能够在类里面使用applicationContext提供的bean啦。
java
public class SpringDataSource extends AbsDataSource { private static Logger logger = Logger.getLogger(SpringDataSource.class); private DataSource ds; public SpringDataSource(){ this.ds = (DataSource) MyContext.getContext().getBean ("dataSource"); System.out.println("########"+ this.ds.toString()); } @Override public Connection getConnection() { try { logger.debug("从数据源" + this.getName() + "获取数据库链接"); return this.ds.getConnection(); } catch (SQLException e) { throw new WabacusRuntimeException("获取" + this.getName() + "数据源的数据库链接失败", e); } } @Override public DataSource getDataSource() { return this.ds; } }
4:在wabacus的配置文件wabacus.cfg.xml 中就能够这样配置来获取数据源啦,以下:
<datasources default="ds_mysql"> <datasource name="ds_mysql" type="com.wabacus.SpringDataSource" dbtype="com.wabacus.config.database.type.MySql"> <property name="driver">driver</property> </datasource> </datasources>