java web 案例

/* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */ package com.sjtu.web.struts.action; import com.sjtu.model.Paper; import com.sjtu.model.Pq; import java.sql.SQLException; import java.util.ArrayList; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.actions.DispatchAction; import com.sjtu.common.Constants; import com.sjtu.model.Question; import com.sjtu.service.PaperService; import com.sjtu.service.QuestionService; import com.sjtu.service.impl.PaperServiceImpl; import com.sjtu.service.impl.QuestionServiceImpl; import com.sjtu.web.struts.form.MkpaperForm; /** * MyEclipse Struts * Creation date: 05-26-2008 * * XDoclet definition: * @struts.action path="/exam" name="examForm" input="/exam.jsp" parameter="method" scope="request" validate="true" */ public class ExamAction extends DispatchAction { /* * Generated Methods */ /** * Method execute * @param mapping * @param form * @param request * @param response * @return ActionForward */ public ActionForward getPaper(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { Long paperId = new Long(request.getParameter("paperId")); request.getSession().setAttribute("paperId", paperId); PaperService paperService = new PaperServiceImpl(); try{ List<Question> questionList = paperService.queryPaperContent(paperId); request.setAttribute(Constants.QUESTION_LIST, questionList); return mapping.findForward("getpaper"); }catch (SQLException e) { System.out.println(e.getMessage()); return mapping.findForward("error"); } } public ActionForward makePaper(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { MkpaperForm mkpaperForm = (MkpaperForm) form; PaperService paperService = new PaperServiceImpl(); Paper paper = new Paper(); paper.setPaperName(mkpaperForm.getName()); try { Long paperId = paperService.mkPaper(paper); request.getSession().setAttribute("paperId", paperId); } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } QuestionService questionService = new QuestionServiceImpl(); List<Question> questionList = new ArrayList<Question>(); try { questionList=questionService.queryAll(); request.setAttribute(Constants.QUESTION_LIST, questionList); return mapping.findForward("allQAdd"); //System.out.println(Constants.QUESTION_LIST+"seeAll setAttribute = = = = == ="); } catch (SQLException e) { System.out.println("seeAll = = = = == ="); e.printStackTrace(); } return null; } public ActionForward addtoPaper(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { MkpaperForm mkpaperForm = (MkpaperForm) form; Long questionId = new Long(request.getParameter("questionId")); Long paperId = (Long)request.getSession().getAttribute("paperId"); System.out.println(paperId); System.out.println(questionId); PaperService paperService = new PaperServiceImpl(); Pq pq = new Pq(); pq.setPaperId(paperId); pq.setQuestionId(questionId); QuestionService questionService = new QuestionServiceImpl(); try { paperService.addtoPaper(pq); } catch (SQLException e1) { // TODO Auto-generated catch block e1.printStackTrace(); } List<Question> questionList = new ArrayList<Question>(); try { questionList=questionService.queryAll(); request.setAttribute(Constants.QUESTION_LIST, questionList); return mapping.findForward("allQAdd"); //System.out.println(Constants.QUESTION_LIST+"seeAll setAttribute = = = = == ="); } catch (SQLException e) { System.out.println("seeAll = = = = == ="); e.printStackTrace(); } return null; } }