Web Technology loc Style Example class xxxdao i private DataSource ds; public void setData Source(DataSource ds)i this ds=ds i private Connection getConnection() throws Exception t return ds. getconnection ()i public void add(object xxx)iWeb Technology 10 IoC Style Example class XxxDAO { private DataSource ds; public void setDataSource(DataSource ds){ this.ds=ds; } private Connection getConnection() throws Exception { return ds.getConnection(); } public void add(Object xxx){ // ... } }