jfinal实现在线投票系统

基于jfinal的投票系统
1.数据库设计
投票主题表：

-- Create table
create table VOTE_THEME
(
  ID        VARCHAR2(32),
  NAME      VARCHAR2(200),
  STARTDATE VARCHAR2(10),
  ENDDATE   VARCHAR2(20),
  SFNM      VARCHAR2(1) default '0',
  YXBJ      VARCHAR2(1) default '1',
  SCRQ      DATE default sysdate,
  HEADPIC   VARCHAR2(200),
  FOOTPIC   VARCHAR2(200)
)
;
-- Add comments to the table 
comment on table VOTE_THEME
  is '投票主题';
-- Add comments to the columns 
comment on column VOTE_THEME.NAME
  is '主题';
comment on column VOTE_THEME.STARTDATE
  is '开始时间';
comment on column VOTE_THEME.ENDDATE
  is '截止时间';
comment on column VOTE_THEME.SFNM
  is '是否匿名';
comment on column VOTE_THEME.YXBJ
  is '有效标记';
comment on column VOTE_THEME.SCRQ
  is '生成日期';
comment on column VOTE_THEME.HEADPIC
  is '主题图片';
comment on column VOTE_THEME.FOOTPIC
  is '底部图片';

投票主题条目：

create table VOTE_THEME_ITEM
(
  ID       VARCHAR2(32),
  NAME     VARCHAR2(200),
  TYPE     VARCHAR2(1),
  THEME_ID VARCHAR2(32),
  SCRQ     DATE default sysdate,
  CNUM     NUMBER default 1
)
;
-- Add comments to the table 
comment on table VOTE_THEME_ITEM
  is '投票项目';
-- Add comments to the columns 
comment on column VOTE_THEME_ITEM.TYPE
  is '1:单选，2：多选；3：手工输入';
comment on column VOTE_THEME_ITEM.CNUM
  is '可以选择的个数';

投票条目选项表：

-- Create table
create table VOTE_THEME_ITEM_ANSWER
(
  ID         VARCHAR2(32),
  ITEM_ID    VARCHAR2(32),
  NAME       VARCHAR2(200),
  COMMS      CLOB,
  IMAGE_PATH VARCHAR2(200),
  FLV_PATH   VARCHAR2(200),
  DEPTNAME   VARCHAR2(50),
  THEME_ID   VARCHAR2(32),
  ONUM       NUMBER,
  CNUM       NUMBER,
  ZGH        VARCHAR2(20)
)
;
-- Add comments to the table 
comment on table VOTE_THEME_ITEM_ANSWER
  is '投票题目选项';

投票管理端代码

package cn.edu.jxut.vote.controller;

import java.io.File;
import java.util.List;

import net.loyin.jFinal.render.excel.ExcelRender;

import org.apache.commons.lang.StringUtils;

import cn.edu.jxut.common.config.GlobalConstants;
import cn.edu.jxut.common.config.PermInterceptor;
import cn.edu.jxut.common.controller.BaseController;
import cn.edu.jxut.common.model.LoginUser;
import cn.edu.jxut.vote.model.Theme;
import cn.edu.jxut.vote.model.ThemeItem;
import cn.edu.jxut.vote.model.ThemeItemAnswer;

import com.jfinal.aop.Before;
import com.jfinal.core.ActionKey;
import com.jfinal.plugin.activerecord.Db;
import com.jfinal.plugin.activerecord.Page;
import com.jfinal.plugin.activerecord.Record;
import com.jfinal.upload.UploadFile;
@Before(PermInterceptor.class)
public class VoteManagerController extends BaseController{

	@ActionKey("/vote")
	public void index() {
		LoginUser u = (LoginUser)getSessionAttr("LoginUser");
		setAttr("root", this.getRequest().getContextPath());
		Theme theme = this.getModel(Theme.class);
		Page p = Theme.dao.paginateByExample(theme, "yxbj = '1' and to_date(enddate,'yyyy-MM-dd') >= sysdate ", pageNumber, pageSize, "");
		setAttr("page",p);
		render("/WEB-INF/vote/index.html");
	}
	@ActionKey("/vote/add")
	public void toAddVote() {
		setAttr("root", this.getRequest().getContextPath());
		render("/WEB-INF/vote/add.html");
	}
	@ActionKey("/vote/detail")
	public void detail() {
		setAttr("root", this.getRequest().getContextPath());
		String id = getPara("id");
		Theme theme = Theme.dao.findById(id);
		List items = theme.getItems();
		setAttr("item",items.get(0));
		setAttr("theme",theme);
		render("/WEB-INF/vote/detail.html");
	}
	@ActionKey("/vote/export")
	public void exportVote(){
		String id = getPara("id");

		String sql = "select t.id,t.name,i.name as itemname,a.name as answer,(select count(distinct user_id) from vote_user_answer a1" +
				" where a1.theme_id = t.id and a1.answer_id = a.id) as answercount" +
				" from vote_theme t, vote_theme_item i, vote_theme_item_answer a where t.id = i.theme_id" +
				" and i.id = a.item_id and i.theme_id = t.id and t.id = ?";

		String[] col = {"投票名称","选项名称","得票数"};
		String[] col1 = {"name","answer","answercount"};

		List list = Db.find(sql,new Object[]{id});
		this.render(new ExcelRender("投票结果.xls",col,col1,list));

	}
	@ActionKey("/vote/save")
	public void voteSave() {
		UploadFile headpic = getFile("headpic");
		UploadFile footpic = getFile("footpic");
		Theme theme = this.getModel(Theme.class);
		ThemeItem themeItem = this.getModel(ThemeItem.class);
		themeItem.set("name", theme.getStr("name"));
		boolean update = true;
		if(StringUtils.isEmpty(theme.getStr("id"))){
			update = false;
			theme.genId();
		}
		File f = new File(GlobalConstants.filepath+File.separator+theme.getStr("id")+File.separator);
		System.out.println("111+++++++++++++++++++++++="+f.getAbsolutePath());
		if(!f.exists()){
			f.mkdirs();
		}
		System.out.println("222+++++++++++++++++++++++="+f.getAbsolutePath());
		if(headpic!=null){
			File uploadFile = headpic.getFile();
			uploadFile.renameTo(new File(f.getAbsolutePath()+File.separator+headpic.getFileName()));
			System.out.println("+++++++++++++++++++++++++++"+new File(f.getAbsolutePath()+File.separator+headpic.getFileName()).getAbsolutePath());
			theme.set("headpic", ("upload"+File.separator+theme.getStr("id")+File.separator+headpic.getFileName()).replace("\\", "/"));
		}
		if(footpic!=null){
			File uploadFile2 = footpic.getFile();
			uploadFile2.renameTo(new File(f.getAbsolutePath()+File.separator+footpic.getFileName()));
			theme.set("footpic", ("upload"+File.separator+theme.getStr("id")+File.separator+footpic.getFileName()).replace("\\", "/"));
		}
		if(update){
			theme.update();
			themeItem.set("theme_id", theme.getStr("id"));
			themeItem.update();
			setAttr("successMessage","修改成功！");
		}else{
			theme.genId();
			theme.save();
			themeItem.set("theme_id", theme.getStr("id"));
			themeItem.genId();
			themeItem.save();
			setAttr("successMessage","保存成功！");
		}
		render("/WEB-INF/vote/add.html");
	}

	@ActionKey("/vote/update")
	public void toUpdateVode() {
		LoginUser u = (LoginUser)getSessionAttr("LoginUser");
		setAttr("root", this.getRequest().getContextPath());
		String id = getPara("id");
		Theme theme = Theme.dao.findById(id);
		List items = theme.getItems();
		setAttr("item",items.get(0));
		setAttr("theme",theme);
		render("/WEB-INF/vote/edit.html");
	}
	@ActionKey("/vote/delete")
	public void deleteVote() {
		LoginUser u = (LoginUser)getSessionAttr("LoginUser");
		setAttr("root", this.getRequest().getContextPath());
	}
	@ActionKey("/vote/item/add")
	public void toItemAdd() {
		LoginUser u = (LoginUser)getSessionAttr("LoginUser");
		setAttr("root", this.getRequest().getContextPath());
	}
	@ActionKey("/vote/item/update")
	public void toItemUpdate() {
		LoginUser u = (LoginUser)getSessionAttr("LoginUser");
		setAttr("root", this.getRequest().getContextPath());
	}
	@ActionKey("/vote/item/delete")
	public void deleteItem() {

	}

	@ActionKey("/vote/addAnswer")
	public void toAddAnswer() {
		setAttr("themeId",getPara("id"));
		Theme theme = Theme.dao.findById(getPara("id"));
		ThemeItem item = ThemeItem.dao.findFirst("select * from vote_theme_item where theme_id = ?",new Object[]{theme.get("id")});
		setAttr("item_id",item.get("id"));
		render("/WEB-INF/vote/answer/add.html");
	}

	@ActionKey("/vote/answer/update")
	public void toUpdateAnswer() {
		LoginUser u = (LoginUser)getSessionAttr("LoginUser");
		ThemeItemAnswer answer = ThemeItemAnswer.dao.findById(getPara("id"));
		setAttr("answer",answer);
		render("/WEB-INF/vote/answer/edit.html");
	}

	@ActionKey("/vote/answer/save")
	public void saveAnswer() {
		UploadFile image = this.getFile("image");
		UploadFile flv = this.getFile("flv");
		ThemeItemAnswer answer = this.getModel(ThemeItemAnswer.class);
		boolean update = true;
		if(StringUtils.isEmpty(answer.getStr("id"))){
			update = false;
			answer.genId();
		}
		File f = new File(GlobalConstants.filepath+File.separator+answer.getStr("id")+File.separator);
		if(!f.exists()){
			f.mkdirs();
		}
		if(image!=null){
			File uploadFile = image.getFile();
			uploadFile.renameTo(new File(f.getAbsolutePath()+File.separator+image.getFileName()));
			answer.set("image_path", ("upload"+File.separator+answer.getStr("id")+File.separator+image.getFileName()).replace("\\", "/"));
		}
		if(flv!=null){
			File uploadFile2 = flv.getFile();
			uploadFile2.renameTo(new File(f.getAbsolutePath()+File.separator+flv.getFileName()));
			answer.set("flv_path", ("upload"+File.separator+answer.getStr("id")+File.separator+flv.getFileName()).replace("\\", "/"));
		}
		setAttr("root", this.getRequest().getContextPath());
		if(update){
			answer.update();
		}else{
			answer.save();
		}
		setAttr("successMessage","保存成功！");
		setAttr("themeId",answer.getStr("theme_id"));
		setAttr("item_id",answer.getStr("item_id"));
		render("/WEB-INF/vote/answer/add.html");
	}

	@ActionKey("/vote/answer/delete")
	public void toDeleteAnswer() {
		LoginUser u = (LoginUser)getSessionAttr("LoginUser");
		String id = getPara("id");
		ThemeItemAnswer answer = ThemeItemAnswer.dao.findById(id);
		ThemeItem item = answer.getItem();
		Theme theme = item.getTheme();
		ThemeItemAnswer.dao.deleteById(id);
		setAttr("successMessage","选项删除成功！");
		this.redirect("/vote/detail?id="+theme.getStr("id"));
	}

}

浏览并投票的代码

package cn.edu.jxut.vote.controller;

import java.io.File;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

import org.apache.commons.lang.StringUtils;

import cn.edu.jxut.common.controller.BaseController;
import cn.edu.jxut.common.model.LoginUser;
import cn.edu.jxut.vote.model.Theme;
import cn.edu.jxut.vote.model.ThemeItem;
import cn.edu.jxut.vote.model.ThemeItemAnswer;
import cn.edu.jxut.vote.model.VoteUserAnswer;

import com.jfinal.aop.ClearInterceptor;
import com.jfinal.aop.ClearLayer;
import com.jfinal.core.ActionKey;
import com.jfinal.plugin.activerecord.Db;
import com.jfinal.plugin.activerecord.Page;

public class VoteViewController extends BaseController{

	@ActionKey("/vote/view")
	@ClearInterceptor(ClearLayer.ALL)
	public void index() {
		setAttr("root", this.getRequest().getContextPath());
		String id = getPara("id");
		Theme theme = Theme.dao.findById(id);
		ThemeItem item = theme.getItems().get(0);
		ThemeItemAnswer answer = new ThemeItemAnswer();
		answer.set("theme_id", id);
		answer.set("item_id", item.get("id"));
		String name = getPara("name");
		if(StringUtils.isNotEmpty(name)){
			if("请输入教师姓名".equals(name)){
				name="";
			}
		}else{
			name = "";
		}
		Page p = ThemeItemAnswer.dao.paginateByExample(answer, "name like '%"+name+"%'", this.getPageNumber(), this.getPageSize(), "cnum desc,onum");
		setAttr("page",p);
		setAttr("theme",theme);
		setAttr("item",item);
		String sql = "select count(*) from vote_user_answer where user_id = ? and item_id = ?";
		LoginUser u = (LoginUser)getSessionAttr("LoginUser");
		if(u!=null){
			int con = Db.queryInt(sql,new Object[]{u.get("user_id"),item.get("id")});
			setAttr("cnum",con);
		}
		if("1".equals(getPara("success"))){
			setAttr("successMessage","投票成功！");
		}else if("0".equals(getPara("success"))){
			setAttr("errorMessage","您已经投过一次了！");
		}else if("-1".equals(getPara("success"))){
			setAttr("errorMessage","您没有剩余的投票机会了！");
		}else if("-2".equals(getPara("success"))){
			setAttr("errorMessage","当前投票已经截止！");
		}else if("-3".equals(getPara("success"))){
			setAttr("errorMessage","当前投票还没有开始！");
		}
		render("/WEB-INF/voteview/view.html");
	}
	@ActionKey("/vote/viewAll")
	@ClearInterceptor(ClearLayer.ALL)
	public void viewAll() {
		setAttr("root", this.getRequest().getContextPath());
		Theme theme = this.getModel(Theme.class);
		Page p = Theme.dao.paginateByExample(theme, "yxbj = '1' and enddate >= to_char(sysdate,'yyyy-MM-dd') ", pageNumber, pageSize, "");
		setAttr("page",p);
		render("/WEB-INF/voteview/viewAll.html");
	}
	@ActionKey("/vote/view/detail")
	@ClearInterceptor(ClearLayer.ALL)
	public void detail() {
		setAttr("root", this.getRequest().getContextPath());
		String id = getPara("id");
		ThemeItemAnswer answer = ThemeItemAnswer.dao.findById(id);
		ThemeItem item = answer.getItem();
		Theme theme = item.getTheme();
		setAttr("answer",answer);
		setAttr("theme",theme);
		String sql = "select count(*) from vote_user_answer where user_id = ? and item_id = ?";
		LoginUser u = (LoginUser)getSessionAttr("LoginUser");
		if(u!=null){
			int con = Db.queryInt(sql,new Object[]{u.get("user_id"),item.get("id")});
			setAttr("cnum",con);
		}
		render("/WEB-INF/voteview/show.html");
	}
	@ActionKey("/vote/vote")
	@ClearInterceptor(ClearLayer.ALL)
	public void vote(){
		LoginUser u = (LoginUser)getSessionAttr("LoginUser");
		String id = getPara("id");
		ThemeItemAnswer answer = ThemeItemAnswer.dao.findById(id);
		ThemeItem item = answer.getItem();
		Theme theme = item.getTheme();
		if("1".equals(theme.getStr("sfnm"))){
			u=new LoginUser();
			u.set("user_id", this.getRequest().getRemoteAddr());
		}else{
			if(u==null){
				this.redirect("/main?redirect=/vote/view?id="+theme.getStr("id"));
				return;
			}
		}
		String startDate = theme.getStr("startDate");
		String endDate = theme.getStr("endDate");
		SimpleDateFormat df = new SimpleDateFormat("yyyy-MM-dd");
		try {
			Date start = df.parse(startDate);
			Date end = df.parse(endDate);
			if(df.parse(df.format(new Date())).compareTo(end)>0){
				this.redirect("/vote/view?success=-2&id="+theme.getStr("id"));
				return;
			}
			if(new Date().compareTo(start)<0){
				this.redirect("/vote/view?success=-3&id="+theme.getStr("id"));
				return;
			}
		} catch (ParseException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		int cnum = item.getBigDecimal("cnum").intValue();
		String sql = "select count(*) from vote_user_answer where user_id = ? and item_id = ?";
		int con = Db.queryInt(sql,new Object[]{u.get("user_id"),item.get("id")});
		if(con>=cnum){
			this.redirect("/vote/view?success=-1&id="+theme.getStr("id"));
			return;
		}
		String sql2 = "select count(*) from vote_user_answer where user_id = ? and answer_id = ?";
		int con2 = Db.queryInt(sql2,new Object[]{u.get("user_id"),answer.get("id")});
		if(con2>0){
			this.redirect("/vote/view?success=0&id="+theme.getStr("id"));
			return;
		}
		VoteUserAnswer userAnswer = new VoteUserAnswer();
		userAnswer.genId();
		userAnswer.set("answer_id", id);
		userAnswer.set("user_id", u.get("user_id"));
		userAnswer.set("item_id", item.get("id"));
		userAnswer.set("theme_id", theme.get("id"));
		userAnswer.save();
		this.redirect("/vote/view?success=1&id="+theme.getStr("id"));
	}
}