Java毕设项目-在线招标（spring+springmvc+hibernate）

package com.bjpowernode.service; import com.bjpowernode.cache.ApplicationCache; import com.bjpowernode.dao.BidDao; import com.bjpowernode.dao.TenderDao; import com.bjpowernode.entity.Bid; import com.bjpowernode.entity.Tender; import com.bjpowernode.entity.Users; import com.bjpowernode.model.Result; import com.bjpowernode.util.TimesUtils; import org.springframework.stereotype.Service; import org.springframework.web.multipart.MultipartFile; import org.springframework.web.multipart.MultipartHttpServletRequest; import org.springframework.web.multipart.commons.CommonsMultipartResolver; import javax.annotation.Resource; import javax.servlet.http.HttpServletRequest; import java.io.File; import java.io.IOException; import java.util.Date; import java.util.Iterator; import java.util.List; import java.util.UUID; /** */ @Service public class BidService { @Resource private TenderDao tenderDao; @Resource private BidDao bidDao; public List<Bid> searchBids(Bid.State state) { List<Bid> tenders = (List<Bid>) bidDao.searchBids(state); for (Bid tender : tenders) { tender.setStateChina(tender.getState().getDescribe()); } return tenders; } public List<Bid> searchBids(Users users, Bid.State state) { List<Bid> tenders = (List<Bid>) bidDao.searchBids(users, state); for (Bid tender : tenders) { tender.setStateChina(tender.getState().getDescribe()); } return tenders; } public Bid searchBid(int bidId) { return bidDao.searchBid(bidId); } //保存招标 public String createBid(HttpServletRequest request) throws IOException { final Users users = ((Users) request.getSession().getAttribute("users")); if (users == null) { return "请登录后进行操作"; } String explainContent = request.getParameter("explainContent"); int tenderId = Integer.parseInt(request.getParameter("tenderId")); Tender tender = tenderDao.searchTender(tenderId); if (tender == null) { return "投标项目编号" + tenderId + "不存在"; } //解析器解析request的上下文 final CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(request.getSession().getServletContext()); //先判断request中是否包涵multipart类型的数据， if (!multipartResolver.isMultipart(request)) { return "未包含文件数据流"; } try { final MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request; final Iterator<String> inter = multiRequest.getFileNames(); while (true) { if (!(inter.hasNext())) break; final MultipartFile file = multiRequest.getFile(inter.next()); if (file.getSize() < 1) { continue; } final String uuidFileName = UUID.randomUUID().toString() + ".pdf"; file.transferTo(new File(ApplicationCache.pdfUploadAddress + "/" + uuidFileName)); final int i = this.insertBid(new Bid(users, tender, Bid.State.WaitForAudit, uuidFileName, explainContent, TimesUtils.DATE_FORMATTER.format(new Date()))); return "true-" + i; } } catch (IOException | IllegalStateException e) { return e.getMessage(); } return null; } //修改招标 public String updateBid(HttpServletRequest request) throws IOException { final Users users = ((Users) request.getSession().getAttribute("users")); if (users == null) { return "请登录后进行操作"; } int bidId = Integer.parseInt(request.getParameter("bidId")); Bid bid = bidDao.searchBid(bidId); String state = request.getParameter("state"); String explainContent = request.getParameter("explainContent"); //解析器解析request的上下文 final CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver(request.getSession().getServletContext()); //先判断request中是否包涵multipart类型的数据， if (!multipartResolver.isMultipart(request)) { return "未包含文件数据流"; } try { final MultipartHttpServletRequest multiRequest = (MultipartHttpServletRequest) request; final Iterator<String> inter = multiRequest.getFileNames(); while (true) { if (!(inter.hasNext())) break; final MultipartFile file = multiRequest.getFile(inter.next()); if (file.getSize() < 1) { continue; } final String uuidFileName = UUID.randomUUID().toString() + ".pdf"; file.transferTo(new File(ApplicationCache.pdfUploadAddress + "/" + uuidFileName)); bid.setPdf(uuidFileName); } bid.setExplainContent(explainContent); bid.setState(Bid.State.forName(state)); bidDao.updateBid(bid); } catch (IOException | IllegalStateException e) { return e.getMessage(); } return "true-" + bidId; } private int insertBid(Bid tender) { tender.setCreateTime(TimesUtils.DATE_FORMATTER.format(new Date())); return bidDao.insertBid(tender); } public Result delete(int bidId) { return bidDao.delete(bidId); } }