public String topicbuilt() { System.out.println("--------------topicbuilt-----------"); User u = new User(); u = (User) this.request.getSession().getAttribute("user_"); this.topic = new Topic(); this.topic.setTitle(this.binfo.getTopictitle()); this.topic.setContent(this.binfo.getTopiccontent()); this.topic.setDate(CONSTANT.getNowTime()); this.topic.setAuther(u.getId()); this.topic.setAuthername(u.getUsername()); this.topic.setLastupdate(this.topic.getDate()); System.out.println("topic---------------" + this.topic.toString()); try { bm.add(this.topic); } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (SQLException e) { e.printStackTrace(); } this.alltopiclist(); return "built"; }