如何在spring框架中解决多数据源的问题

public class MultiDataSource implements DataSource {
private DataSource dataSource = null;
public MultiDataSource(DataSource dataSource){
this.dataSource = dataSource;
}
/* (non-Javadoc)
* @see javax.sql.DataSource#getConnection()
*/
public Connection getConnection() throws SQLException {
return getDataSource().getConnection();
}
//其它DataSource接口应当实现的方法

public DataSource getDataSource(){
return this.dataSource;
}
}
public void setDataSource(DataSource dataSource) {
this.dataSource = dataSource;
}
}