jfinal的回滚

    @Before(Tx.class)    
    public void test() throws Exception {    
        
    } 

    public void pay() {    
        boolean bool = Db.tx(new IAtom() {    
            @Override    
            public boolean run() throws SQLException {    
                if (...) {    
                    //全部回滚
                    return false;    
                } else {    
                    //全部成功
                    return true;    
                }      
                //return true;    
            }    
        });    
            
        render...;
    }