wolfking

package org.wolfking.controller; import java.util.ArrayList; import java.util.Arrays; import java.util.HashSet; import java.util.List; import java.util.Set; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.Action; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.wolfking.apputil.DAO; import org.wolfking.apputil.Factory; import org.wolfking.apputil.SharePool; import org.wolfking.apputil.TestUtil; import org.wolfking.apputil.Timer; import org.wolfking.persistence.Paper; import org.wolfking.persistence.Question; import org.wolfking.persistence.SubType; import org.wolfking.persistence.Temp; import org.wolfking.persistence.User; import org.wolfking.strutsform.Params; public class TestController extends Action { // private static TimeController timeCtr = Factory.getTimeController(); private static TestUtil testUtil = new TestUtil(); @SuppressWarnings("unchecked") @Override public ActionForward execute(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request, HttpServletResponse response) throws Exception { String require = request.getParameter("require"); /* * 考生开始考试 */ if (require.equals("come")) { List<String> exams = new ArrayList<String>(); if (SharePool.get("ex") != null) { exams.addAll((Set) SharePool.get("ex")); request.getSession().setAttribute("exams", exams); } return mapping.findForward("select"); } /* * 页面传过来的select表示选择考场，这里处理完之后将跳转到test-begin<br> 处理时要将考场标识添加到Session中<br> * 此分支由王真提供 */ if (require.equals("select")) { String select = request.getParameter("select"); request.getSession().setAttribute("examroom", select); Paper paper = (Paper) (SharePool .get((String) SharePool.get(select))); request.setAttribute("timelong", paper.getTimeLast()); SubType st = (SubType) Factory.getDAO().get(SubType.class, paper.getSubTypeId()); if (st != null) request.setAttribute("sub", st); return mapping.findForward("testbegin"); } /* 正式开始的话进入考试页面test.jsp */ if (require.equals("start")) return startTest(mapping, actionForm, request, response); /* 考生答题 */ if (require.equals("answer")) return handle(mapping, actionForm, request, response); // 交卷 if (require.equals("hand")) { String examroom = (String) request.getSession().getAttribute( "examroom"); if (examroom == null) return mapping.findForward("timeover"); TimeController timeCtr = Factory.getTimeController(examroom); if (timeCtr == null) return mapping.findForward("timeover"); handle(mapping, actionForm, request, response); User user = (User) request.getSession().getAttribute("user"); Timer timer = null; timer = timeCtr.getTimer(user.getUserId()); if (timer != null) timer.stop(); return mapping.findForward("timeover"); } /* 查看任一试题 */ if (require.equals("view")) return view(mapping, actionForm, request); /* 查看剩余时间 */ if (require.equals("lefttime")) return viewLeftTime(mapping, request); { // 可能是页面出错，或是有人搞恶意破坏 } return mapping.findForward(""); }// ~execute /** * 查看任一道试题 * * @param mapping * @param request * @return */ private ActionForward view(ActionMapping mapping, ActionForm form, HttpServletRequest request) { String examroom = (String) request.getSession() .getAttribute("examroom"); if (examroom == null) return mapping.findForward("timeover"); TimeController timeCtr = Factory.getTimeController(examroom); if (timeCtr == null) return mapping.findForward("timeover"); int qid = Integer.parseInt(request.getParameter("qid")); User user = (User) request.getSession().getAttribute("user"); Params params = (Params) form; qid = qid <= 0 ? 1 : qid; params.setPage(qid); setData(mapping, params, request, testUtil.getQuestions(examroom), user); return mapping.findForward("test"); }// ~view /** * 查看剩余时间 * * @param mapping * @param request * @return */ private ActionForward viewLeftTime(ActionMapping mapping, HttpServletRequest request) { String examroom = (String) request.getSession() .getAttribute("examroom"); if (examroom == null) return mapping.findForward("timeover"); TimeController timeCtr = Factory.getTimeController(examroom); if (timeCtr == null) return mapping.findForward("timeover"); User user = (User) request.getSession().getAttribute("user"); Timer timer = null; if (timeCtr != null) { timer = timeCtr.getTimer(user.getUserId()); request.setAttribute("lefttime", timer.getLeftTime()); } return mapping.findForward("lefttime"); }// ~viewLeftTime /** * 方法startTest实现考试的初始化所有准备。设置成功考生将可以进行正式考试 * * @author 郭华辉 修改：王红燕 */ @SuppressWarnings("unchecked") private ActionForward startTest(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request, HttpServletResponse response) { String examroom = (String) request.getSession() .getAttribute("examroom"); if (examroom == null) return mapping.findForward("timeover"); TimeController timeCtr = Factory.getTimeController(examroom); if (timeCtr == null) return mapping.findForward("timeover"); Params params = (Params) actionForm; // 取出考场对应的试卷，从而取得试题列表 String pname = (String) SharePool.get(examroom); Paper paper = (Paper) SharePool.get(pname); List<Question> questions = new ArrayList<Question>(); questions.addAll(paper.getQuestions()); User user = (User) request.getSession().getAttribute("user"); Long userId = user.getUserId(); if (timeCtr.initialed() == false) { timeCtr.setTime(paper.getStartTime(), paper.getTimeLast() * 60); timeCtr.setExamroom(examroom); } // 如果考生ID对应没有计时器，说明是开始 if (timeCtr.getTimer(userId) == null) { // 开始计时 timeCtr.add(userId, paper.getTimeLast() * 60); DAO dao = Factory.getDAO(); for (int i = 0; i < questions.size(); i++) { Question question = (Question) questions.get(i); Long questionId = question.getQuestionId(); Long knowId = question.getKnow().getId(); Temp temp = new Temp(); temp.setExamroom(examroom); temp.setUserId(userId); temp.setQuestionId(questionId); if (dao.get(Temp.class, temp) != null) break; temp.setKnowId(knowId); dao.save(temp); } }// end if SharePool.add(String.valueOf(userId), new HashSet()); // 设置考试开始的第一道题及初始信息 Question firstQuestion = (Question) questions.get(0); params.setQuestionID(firstQuestion.getQuestionId()); params.setPage(1); request.setAttribute("question", firstQuestion); request.setAttribute("curPage", 1); request.getSession().setAttribute("total", questions.size()); request.getSession().setAttribute("timeslong", paper.getTimeLast()); request.setAttribute("answered", SharePool.get(String.valueOf(user .getUserId()))); return mapping.findForward("test"); }// ~startTest /** * 处理考生答题 */ @SuppressWarnings("unchecked") private ActionForward handle(ActionMapping mapping, ActionForm actionForm, HttpServletRequest request, HttpServletResponse response) { String examroom = (String) request.getSession() .getAttribute("examroom"); if (examroom == null) return mapping.findForward("timeover"); TimeController timeCtr = Factory.getTimeController(examroom); if (timeCtr == null) return mapping.findForward("timeover"); User user = (User) request.getSession().getAttribute("user"); if (user == null