VOTE实例_Struts完整版(j2ee完整项目+sql文件).rar6

/* * Generated by MyEclipse Struts * Template path: templates/java/JavaClass.vtl */ package org.matrix.vote.control; import java.io.IOException; import java.lang.reflect.InvocationTargetException; import java.util.Iterator; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.commons.beanutils.BeanUtils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.apache.struts.action.ActionForm; import org.apache.struts.action.ActionForward; import org.apache.struts.action.ActionMapping; import org.apache.struts.actions.MappingDispatchAction; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartUtilities; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.PlotOrientation; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.data.general.DefaultPieDataset; import org.matrix.vote.logic.VoteService; import org.matrix.vote.web.VoteDTO; import org.matrix.vote.web.VoteItemVO; import org.matrix.vote.web.VoteVO; /** * MyEclipse Struts * Creation date: 05-27-2008 * * XDoclet definition: * @struts.action path="/vote" name="voteForm" input="/vote_add.jsp" parameter="method" scope="request" validate="true" */ public class VoteAction extends MappingDispatchAction { private static final Log log = LogFactory.getLog(VoteService.class); /* * Generated Methods */ /** * Method execute * @param mapping * @param form * @param request * @param response * @return ActionForward */ public ActionForward pubVote(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { VoteForm voteForm = (VoteForm) form; VoteDTO vdto = new VoteDTO(); try { BeanUtils.copyProperties(vdto, voteForm); } catch (IllegalAccessException e) { log.error("拷贝属性出现异常情况！"); e.printStackTrace(); } catch (InvocationTargetException e) { log.error("拷贝属性出现异常情况！"); e.printStackTrace(); } VoteService vs = new VoteService(this.getDataSource(request)); vs.pubVote(vdto); mapping.getInputForward(); return mapping.getInputForward(); } public ActionForward listAllVote(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { VoteForm voteForm = (VoteForm) form; VoteService vs = new VoteService(this.getDataSource(request)); List votes = vs.getAllVote(); request.setAttribute("votes", votes); return mapping.getInputForward(); } public ActionForward viewVote(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { VoteForm voteForm = (VoteForm) form; VoteService vs = new VoteService(this.getDataSource(request)); VoteVO vvo = vs.viewVote(Integer.parseInt(voteForm.getId()),true); request.setAttribute("vote", vvo); return mapping.getInputForward(); } public ActionForward modifyVote(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { VoteForm voteForm = (VoteForm) form; VoteDTO vdto = new VoteDTO(); try { BeanUtils.copyProperties(vdto, voteForm); } catch (IllegalAccessException e) { log.error("拷贝属性出现异常情况！"); e.printStackTrace(); } catch (InvocationTargetException e) { log.error("拷贝属性出现异常情况！"); e.printStackTrace(); } VoteService vs = new VoteService(this.getDataSource(request)); vs.modifyVote(vdto); mapping.getInputForward(); return mapping.findForward("manage"); } public ActionForward delVote(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { VoteForm voteForm = (VoteForm) form; VoteService vs = new VoteService(this.getDataSource(request)); vs.deleteVote(Integer.parseInt(voteForm.getId())); return mapping.findForward("manage"); } public ActionForward chart(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response) { VoteForm voteForm = (VoteForm) form; VoteService vs = new VoteService(this.getDataSource(request)); VoteVO vote = vs.viewVote(Integer.parseInt(voteForm.getId()), true); // 得到JFreeChart对象的实例 JFreeChart chart = getChart( vote ); // 设置输出对象的类型 response.setContentType( "image/jpeg" ); // 输出图形 try { ChartUtilities.writeChartAsJPEG( response.getOutputStream(), 100, chart, 400, 300, null); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } return null; } // 得到JFreeChart对象的实例 public static JFreeChart getChart( VoteVO vote ) { JFreeChart chart = null; // 判断是否为饼图 if( vote.getPictype().indexOf( "PIE" ) == 0 ) { // 组织生成饼图的数据 DefaultPieDataset data = new DefaultPieDataset(); Iterator it = vote.getVoteitems().iterator(); while( it.hasNext() ) { VoteItemVO vi = (VoteItemVO)it.next(); data.setValue( vi.getTitle(), vi.getVotenum() ); } // 判断是否为普通饼图 if( "PIE".equals( vote.getPictype() ) ) { chart = ChartFactory.createPieChart( vote.getTitle(), data, false, false, false ); } else // 3D饼图 { chart = ChartFactory.createPieChart3D( vote.getTitle(), data, false, false, false ); } } else { // 组织柱状图的数据 DefaultCategoryDataset data = new DefaultCategoryDataset(); Iterator it = vote.getVoteitems().iterator(); while( it.hasNext() ) { VoteItemVO vi = (VoteItemVO)it.next(); data.addValue( vi.getVotenum(), "选项", vi.getTitle() ); } // 判断是否为普通柱状图 if( "BAR".equals( vote.getPictype() ) ) { chart = ChartFactory.createBarChart( vote.getTitle(), "选项", "数量", data, PlotOrientation.VERTICAL, false, false, false ); } else // 3D柱状图 { chart = ChartFactory.createBarChart3D( vote.getTitle(), "选项", "数量", data, PlotOrientation.VERTICAL, false, false, false ); } } return chart; } }