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import java.util.ArrayList;
import java.util.List;import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;import org.springframework.http.HttpRequest;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.View;
import org.springframework.web.servlet.view.JstlView;import com.wantao.bean.Page;
import com.wantao.bean.Vote;
import com.wantao.bean.VoteOption;
import com.wantao.bean.VoteResult;
import com.wantao.daoImpl.VoteDaoImpl;
import com.wantao.daoImpl.VoteOptionDaoImpl;
import com.wantao.util.ChartUtil;
import com.wantao.util.PageUtil;@Controller
public class VoteHandler {@RequestMapping(value = "/addVote", method = RequestMethod.POST)public String addVote(int channel, String voteName, String[] voteOptions) {// 只要name属性相同，前后端自动绑定VoteDaoImpl voteDaoImpl = new VoteDaoImpl();VoteOptionDaoImpl voteOptionDaoImpl = new VoteOptionDaoImpl();Vote vote = new Vote();// 创建投票对象vote.setChannelId(channel);// 设置频道idvote.setVoteName(voteName);// 设置投票名称voteDaoImpl.addVote(vote);// 执行增加投票的方法int voteId = voteDaoImpl.findVoteByName(voteName).getVoteId();// 获取投票idfor (String voteoption : voteOptions) {VoteOption voteOption = new VoteOption();// 创建投票选择对象voteOption.setVoteId(voteId);voteOption.setVoteOptionName(voteoption);voteOptionDaoImpl.addVoteOption(voteOption);}return "redirect:/index.jsp";}@RequestMapping(value = "/editorVote", method = RequestMethod.GET)public String editorVote(HttpSession session, @RequestParam(name = "currentPage") int currentPage) {VoteDaoImpl voteDaoImpl = new VoteDaoImpl();VoteOptionDaoImpl voteOptionDaoImpl = new VoteOptionDaoImpl();List voteIds=new ArrayList();Page page=null;int everyPageCount = 10;// 每页记录数int totalCount = voteDaoImpl.findAllVoteCount();// 总记录数if (currentPage ==1) {//第一页创建page对象page = PageUtil.createPage(currentPage, everyPageCount, totalCount);page.setBeginIndex(currentPage);}else {//非第一页直接获取page对象page =(Page) session.getAttribute("page");}page.setCurrentPage(currentPage);page.setHasNextPage(PageUtil.getHasNextPage(currentPage, page.getTotalPage()));page.setHasPrePage(PageUtil.getHasPrePage(currentPage));List<Vote> votes = voteDaoImpl.findAllVote(page);List<VoteResult> voteResults = new ArrayList<VoteResult>();for (Vote vote : votes) {VoteResult voteResult = new VoteResult();List<VoteOption> voteOptions = voteOptionDaoImpl.findVoteOptionByVoteId(vote.getVoteId());voteResult.setVote(vote);voteResult.setVoteOptions(voteOptions);voteResults.add(voteResult);voteIds.add(vote.getVoteId());}session.setAttribute("voteResults", voteResults);session.setAttribute("page", page);session.setAttribute("voteIds", voteIds);return "editorVote";}@RequestMapping(value = "/delete")public String deleteVote(@RequestParam(value = "currentPage") int currentPage, @RequestParam(value = "id") int id) {VoteDaoImpl voteDaoImpl = new VoteDaoImpl();VoteOptionDaoImpl voteOptionDaoImpl = new VoteOptionDaoImpl();voteOptionDaoImpl.deleteVoteOption(id);voteDaoImpl.deleteVote(id);return "redirect:editorVote?currentPage="+currentPage;}
}