SPRING AOP Transaction

    今天在公司（Symbio CORP .）里修改一个老的投票系统的时候出现了一个和事物处理相关问题，最终在Andy的帮助下得以解决。首先真的很感谢他的帮助！呵呵，说实话他真对Spring很了解！还得多向他学习。
    问题是这样的

控制器VoteViewFrontController的save方法的代码（SPRING MVC）

public ModelAndView save(HttpServletRequest request,
                            HttpServletResponse response) throws Exception {
       long id = RequestUtil.getLongParameter(request, "id");
       String cookieName = "Vote" + id;
       Cookie c = RequestUtil.getCookie(request, cookieName);
       if (c != null) {
           return view(request, response);
       }
       String[] ids = request.getParameterValues("voteSub");
       Map model = new HashMap();
       Vote vote = null;
       Vote lastVote = null;
       Vote nextVote = null;
       Set voteContents = null;
       vote = voteManager.getVote(new Long(id));
       if (id > 0) {
           vote = voteManager.getVote(new Long(id));
           if (id - 1 > 0) {
               lastVote = voteManager.getVote(new Long(id - 1));
           }
           if (id + 1 > 0) {
               nextVote = voteManager.getVote(new Long(id + 1));
           }
           voteContents = vote.getVoteContents();
       } else {
           throw new Exception("Invalid vote id.");
       }
       model.put("vote", vote);
       if (lastVote != null) {
           model.put("lastVote", lastVote);
       }
       model.put("vote", vote);
       if (nextVote != null) {
           model.put("nextVote", nextVote);
       }
       List voteContentsL = new ArrayList();
       voteContentsL.addAll(voteContents);
       Collections.sort(voteContentsL);
       model.put("voteContents", voteContentsL);
       if (ids != null) {
           String id1;
           // VoteContent bean = new VoteContent();
           for (int i = 0; i < ids.length; i++) {
               id1 = ids[i];
               voteContentManager.saveVoteContent(Long.valueOf(id1), request
                   .getRemoteAddr());
           }
       } else {
           model.put("error", "error");
           return new ModelAndView("voteView", "model", model);
       }
       String saved = "saved";
       model.put("saved", saved);
       String cookiePath = "";
       String cookieValue = "cookieValue";
       RequestUtil.setCookie(response, cookieName, cookieValue, cookiePath);
       return new ModelAndView("voteView", "model", model);
   }

 

java 代码

public void saveVoteContent(VoteContent voteContent) {
       // if (voteContent.getId() == null)
       // getHibernateTemplate().save(voteContent);
       // else
       // getHibernateTemplate().update(voteContent);
       getSession().saveOrUpdate(voteContent);
   }

   public void saveVoteContent(Long id, String ip) {
       List voteContents =
           getHibernateTemplate()
               .find("from VoteContent n where n.id = ?", id);
       VoteContent voteContent = new VoteContent();
       if (voteContents.size() > 0) {
           voteContent = (VoteContent) voteContents.get(0);
       }
       long count;
       if (voteContent.getCount() != null)
           count = voteContent.getCount().longValue();
       else
           count = 0;
       count++;
       voteContent.setCount(new Long(count));
       voteContent.setIp(ip);
       voteContent.setModifiedDate(new Date());
       getSession().saveOrUpdate(voteContent);
   }

   public void vote(Long id, String ip) {
       List voteContents =
           getHibernateTemplate()
               .find("from VoteContent n where n.id = ?", id);
       VoteContent voteContent = new VoteContent();
       if (voteContents.size() > 0) {
           voteContent = (VoteContent) voteContents.get(0);
       }
       long count;
       if (voteContent.getCount() != null)
           count = voteContent.getCount().longValue();
       else
           count = 0;
       count++;
       voteContent.setCount(new Long(count));
       voteContent.setIp(ip);
       voteContent.setModifiedDate(new Date());
       saveVoteContent(voteContent);
   }

 

文章资料整理中。。。。。。。

近期完成