JavaWeb项目开发案例精粹-第2章投票系统-004action层

1.

 1 package com.sanqing.action;
 2 
 3 import java.util.UUID;
 4 
 5 import com.opensymphony.xwork2.ActionSupport;
 6 import com.sanqing.bean.Vote;
 7 import com.sanqing.bean.VoteOption;
 8 import com.sanqing.dao.VoteDAO;
 9 import com.sanqing.dao.VoteOptionDAO;
10 import com.sanqing.daoFactory.VoteDAOFactory;
11 import com.sanqing.daoFactory.VoteOptionDAOFactory;
12 
13 public class AddVoteAction extends ActionSupport {
14     private int channel;        // 封装channel参数
15     private String voteName;    // 封装voteName参数
16     private String[] voteOption;// 封装voteOption参数
17 
18     public int getChannel() {
19         return channel;
20     }
21 
22     public void setChannel(int channel) {
23         this.channel = channel;
24     }
25 
26     public String getVoteName() {
27         return voteName;
28     }
29 
30     public void setVoteName(String voteName) {
31         this.voteName = voteName;
32     }
33 
34     public String[] getVoteOption() {
35         return voteOption;
36     }
37 
38     public void setVoteOption(String[] voteOption) {
39         this.voteOption = voteOption;
40     }
41 
42     public String execute() throws Exception {
43         VoteDAO voteDAO = VoteDAOFactory.getVoteDAOInstance();//获得VoteDAO实例
44         VoteOptionDAO voteOptionDAO = 
45             VoteOptionDAOFactory.getVoteOptionDAOInstance();//获得voteOption实例
46         //首先保存投票，然后再保存投票选项
47         Vote vote = new Vote();
48         vote.setChannelID(channel);
49         vote.setVoteName(voteName);
50         voteDAO.addVote(vote);
51         //查询投票ID
52         int voteID = voteDAO.findVoteByName(voteName).getVoteID();
53         //保存投票选项
54         for(String voteOptionName : voteOption) {
55             VoteOption vp = new VoteOption();
56             vp.setVoteID(voteID);
57             vp.setVoteOptionName(voteOptionName);
58             voteOptionDAO.addVoteOption(vp);
59         }
60         return this.SUCCESS;
61     }
62 
63 }

 

2.

 1 package com.sanqing.action;
 2 
 3 import java.util.List;
 4 
 5 import com.opensymphony.xwork2.ActionSupport;
 6 import com.sanqing.bean.VoteOption;
 7 import com.sanqing.dao.VoteDAO;
 8 import com.sanqing.dao.VoteOptionDAO;
 9 import com.sanqing.daoFactory.VoteDAOFactory;
10 import com.sanqing.daoFactory.VoteOptionDAOFactory;
11 
12 public class DeleteVoteAction extends ActionSupport{
13     private int voteID;
14 
15     public int getVoteID() {
16         return voteID;
17     }
18 
19     public void setVoteID(int voteID) {
20         this.voteID = voteID;
21     }
22 
23     public String execute() throws Exception {
24         VoteDAO voteDAO = VoteDAOFactory.getVoteDAOInstance();
25         VoteOptionDAO voteOptionDAO = VoteOptionDAOFactory
26                 .getVoteOptionDAOInstance();
27         //通过该投票ID查找该投票下的所有投票选项
28         List<VoteOption> voteOptions = voteOptionDAO.findVoteOptionByVoteID(voteID);
29         //循环进行删除
30         for(VoteOption voteOption : voteOptions) {
31             voteOptionDAO.deleteVoteOption(voteOption.getVoteOptionID());
32         }
33         //再删除该投票
34         voteDAO.deleteVote(voteID);
35         return this.SUCCESS;
36     }
37 }

 

3.

 1 package com.sanqing.action;
 2 
 3 import javax.servlet.http.Cookie;
 4 
 5 import org.apache.struts2.ServletActionContext;
 6 
 7 import com.opensymphony.xwork2.ActionContext;
 8 import com.opensymphony.xwork2.ActionSupport;
 9 import com.sanqing.bean.VoteOption;
10 import com.sanqing.dao.VoteOptionDAO;
11 import com.sanqing.daoFactory.VoteOptionDAOFactory;
12 
13 public class DoVoteAction extends ActionSupport{
14     private int voteOptionID;
15     private String otherOption;
16     private int voteID;
17     private int channelID;
18 
19     public int getChannelID() {
20         return channelID;
21     }
22     public void setChannelID(int channelID) {
23         this.channelID = channelID;
24     }
25     public int getVoteID() {
26         return voteID;
27     }
28 
29     public void setVoteID(int voteID) {
30         this.voteID = voteID;
31     }
32 
33     public int getVoteOptionID() {
34         return voteOptionID;
35     }
36 
37     public void setVoteOptionID(int voteOptionID) {
38         this.voteOptionID = voteOptionID;
39     }
40 
41     public String getOtherOption() {
42         return otherOption;
43     }
44 
45     public void setOtherOption(String otherOption) {
46         this.otherOption = otherOption;
47     }
48 
49     public String execute() throws Exception {
50         VoteOptionDAO voteOptionDAO = VoteOptionDAOFactory
51         .getVoteOptionDAOInstance();
52         //首先判断用户是否能进行投票
53         Cookie cookies[]= ServletActionContext.getRequest().getCookies();//取出cookies
54         
55         for(Cookie cookie : cookies) {//遍历cookies
56             
57             if(cookie.getValue().equals(Integer.toString(voteID))) {//如果用户已经投过票
58                 this.addActionError("您今天已经投过票了，请明天再来！");
59                 return this.INPUT;
60             }
61         }
62         //判断是否选择其他选项
63         if(voteOptionID == 0) {
64             //添加该选项
65             VoteOption voteOption = new VoteOption();
66             voteOption.setVoteID(voteID);
67             voteOption.setVoteOptionName(otherOption);
68             voteOption.setTicketNum(1);
69             voteOptionDAO.addVoteOption(voteOption);
70         }else {
71             //取出以前的投票选项
72             VoteOption voteOption = voteOptionDAO.findVoteOptionById(voteOptionID);
73             int ticketNum = voteOption.getTicketNum();
74             //更新选项的投票数
75             voteOption.setTicketNum(ticketNum + 1);
76             voteOptionDAO.updateVoteOption(voteOption);
77             //更新完成后，添加cookie，防止重复投票
78             Cookie cookie = new Cookie("hasVote" + voteID,Integer.toString(voteID));
79             ServletActionContext.getResponse().addCookie(cookie);
80         }
81         return this.SUCCESS;
82     }
83     
84 }

 

4.

 1 package com.sanqing.action;
 2 
 3 import java.util.ArrayList;
 4 import java.util.List;
 5 
 6 import javax.servlet.http.HttpServletRequest;
 7 
 8 import org.apache.struts2.ServletActionContext;
 9 
10 import com.opensymphony.xwork2.ActionSupport;
11 import com.sanqing.bean.Vote;
12 import com.sanqing.bean.VoteOption;
13 import com.sanqing.bean.VoteResult;
14 import com.sanqing.dao.VoteDAO;
15 import com.sanqing.dao.VoteOptionDAO;
16 import com.sanqing.daoFactory.VoteDAOFactory;
17 import com.sanqing.daoFactory.VoteOptionDAOFactory;
18 import com.sanqing.util.Page;
19 import com.sanqing.util.PageUtil;
20 
21 public class ShowVoteAction extends ActionSupport {
22     private int currentPage;
23 
24     public int getCurrentPage() {
25         return currentPage;
26     }
27 
28     public void setCurrentPage(int currentPage) {
29         this.currentPage = currentPage;
30     }
31 
32     public String execute() throws Exception {
33         VoteDAO voteDAO = VoteDAOFactory.getVoteDAOInstance();
34         VoteOptionDAO voteOptionDAO = VoteOptionDAOFactory
35                 .getVoteOptionDAOInstance();
36         int totalCount = voteDAO.findAllCount();
37         Page page = PageUtil.createPage(10, totalCount, currentPage);
38         List<Vote> votes = voteDAO.findAllVote(page);
39         List<VoteResult> voteResultList = new ArrayList<VoteResult>();
40         for (Vote vote : votes) {
41             List<VoteOption> voteOptions = voteOptionDAO
42                     .findVoteOptionByVoteID(vote.getVoteID());
43             VoteResult voteResult = new VoteResult();
44             voteResult.setVote(vote);
45             voteResult.setVoteOptions(voteOptions);
46             voteResultList.add(voteResult);
47         }
48         HttpServletRequest request = ServletActionContext.getRequest();
49         request.setAttribute("voteResultList",voteResultList);
50         request.setAttribute("page",page);
51         return this.SUCCESS;
52     }
53 }

 

5.

 1 package com.sanqing.action;
 2 
 3 import java.util.ArrayList;
 4 import java.util.List;
 5 
 6 import javax.servlet.http.HttpServletRequest;
 7 
 8 import org.apache.struts2.ServletActionContext;
 9 
10 import com.opensymphony.xwork2.ActionSupport;
11 import com.sanqing.bean.Vote;
12 import com.sanqing.bean.VoteOption;
13 import com.sanqing.bean.VoteResult;
14 import com.sanqing.dao.VoteDAO;
15 import com.sanqing.dao.VoteOptionDAO;
16 import com.sanqing.daoFactory.VoteDAOFactory;
17 import com.sanqing.daoFactory.VoteOptionDAOFactory;
18 import com.sanqing.util.Page;
19 import com.sanqing.util.PageUtil;
20 
21 public class ShowVoteByChannelAction extends ActionSupport {
22     private int channelID;
23     private int currentPage;
24 
25     public int getChannelID() {
26         return channelID;
27     }
28 
29     public void setChannelID(int channelID) {
30         this.channelID = channelID;
31     }
32 
33     public int getCurrentPage() {
34         return currentPage;
35     }
36 
37     public void setCurrentPage(int currentPage) {
38         this.currentPage = currentPage;
39     }
40 
41     public String execute() throws Exception {
42         VoteDAO voteDAO = VoteDAOFactory.getVoteDAOInstance();
43         VoteOptionDAO voteOptionDAO = VoteOptionDAOFactory
44                 .getVoteOptionDAOInstance();
45         // 获得该频道下的记录数
46         int totalCount = voteDAO.fintCountByChannel(channelID);
47         // 设置分页信息
48         Page page = PageUtil.createPage(3, totalCount, currentPage);
49         //取得该频道下的记录
50         List<Vote> votes = voteDAO.findVoteByChannel(page, channelID);
51         //存放所有投票和投票选项
52         List<VoteResult> voteResultList = new ArrayList<VoteResult>();
53         for (Vote vote : votes) {
54             //查询该投票下的所有投票选项
55             List<VoteOption> voteOptions = voteOptionDAO
56                     .findVoteOptionByVoteID(vote.getVoteID());
57             VoteResult voteResult = new VoteResult();
58             voteResult.setVote(vote);
59             voteResult.setVoteOptions(voteOptions);
60             voteResultList.add(voteResult);
61         }
62         HttpServletRequest request = ServletActionContext.getRequest();
63         request.setAttribute("voteResultList",voteResultList);
64         request.setAttribute("page",page);
65         return this.SUCCESS;
66     }
67 }

 

6.

 1 package com.sanqing.action;
 2 
 3 import java.util.List;
 4 
 5 import org.jfree.chart.ChartFactory;
 6 import org.jfree.chart.JFreeChart;
 7 import org.jfree.chart.plot.PlotOrientation;
 8 import org.jfree.data.category.DefaultCategoryDataset;
 9 
10 import com.opensymphony.xwork2.ActionSupport;
11 import com.sanqing.bean.Vote;
12 import com.sanqing.bean.VoteOption;
13 import com.sanqing.dao.VoteDAO;
14 import com.sanqing.dao.VoteOptionDAO;
15 import com.sanqing.daoFactory.VoteDAOFactory;
16 import com.sanqing.daoFactory.VoteOptionDAOFactory;
17 
18 public class VoteResultAction extends ActionSupport {
19     private JFreeChart chart;
20     private int voteID;//投票ID
21     
22     public int getVoteID() {
23         return voteID;
24     }
25 
26     public void setVoteID(int voteID) {
27         this.voteID = voteID;
28     }
29 
30     public JFreeChart getChart() {
31         VoteDAO voteDAO = VoteDAOFactory.getVoteDAOInstance();//获得VoteDAO实例
32         VoteOptionDAO voteOptionDAO = 
33             VoteOptionDAOFactory.getVoteOptionDAOInstance();//获得voteOption实例
34         //根据投票ID得到的投票
35         Vote vote = voteDAO.findVoteById(voteID);
36         String voteName = vote.getVoteName();    //得到投票名称
37         
38         //根据投票ID得到所有的投票选项
39         List<VoteOption> voteOptions = voteOptionDAO.findVoteOptionByVoteID(voteID);
40         
41         DefaultCategoryDataset dcd = new DefaultCategoryDataset();//数据源
42         
43         //设置数据
44         for(VoteOption voteOption : voteOptions) {
45             dcd.setValue(voteOption.getTicketNum(),"",voteOption.getVoteOptionName());
46         }
47         //使用工厂类创建柱状图
48         JFreeChart chart = ChartFactory.createBarChart3D(
49                 voteName,
50                 "投票选项",
51                 "投票数", 
52                 dcd,
53                 PlotOrientation.VERTICAL ,
54                 false, 
55                 true,
56                 false);
57         
58         return chart;
59     }
60 
61     public void setChart(JFreeChart chart) {
62         this.chart = chart;
63     }
64     
65     public String execute() throws Exception {
66         return SUCCESS;
67     }
68 }

 

posted @ 2016-03-25 15:23  shamgod  阅读(1381)  评论(0)  编辑  收藏  举报
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