首页>代码>基于SpringBoot+thymeleaf实现的图书馆借阅管理系统>/book-system/src/main/java/com/xunmaw/book/controller/LendController.java
package com.xunmaw.book.controller; import com.baomidou.mybatisplus.extension.plugins.pagination.Page; import com.xunmaw.book.entity.BookInfo; import com.xunmaw.book.entity.LendList; import com.xunmaw.book.entity.User; import com.xunmaw.book.service.BookInfoService; import com.xunmaw.book.service.LendListService; import com.xunmaw.book.service.UserService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.RequestMapping; import java.util.ArrayList; import java.util.Calendar; import java.util.Date; import java.util.List; @Controller @RequestMapping("/lend") public class LendController { @Autowired private LendListService lendListService; @Autowired private BookInfoService bookInfoService; @Autowired private UserService userService; //查询所有未还书 @RequestMapping("/selectSome") public String selectSome(int id,int current, Model model){ User user = userService.getById(id); model.addAttribute("user",user); List<LendList> lendList = lendListService.selectByReader(id); Page<LendList> page = new Page<>(current,5); //总数据数 int count = lendList.size(); //总页数 int pages=count %5 == 0 ? count/5 :count/5+1; //让页码保持在合理范围 if (current==0) current++; if (current>pages) current--; //计算当前页第一条数据的下标 int currId = current>1 ? (current-1)*5:0; Date date1=new Date(); List<LendList> pageList = new ArrayList<>(); for (int i=0; i<5 && i<count - currId;i++){ Date date2 = lendList.get(currId+i).getBackDate(); if (date1.compareTo(date2)==1){ if (lendList.get(currId+i).getFlag()==0) lendListService.updateFlag(lendList.get(currId+i).getSerNum()); } if (date1.compareTo(date2)<1){ if (lendList.get(currId+i).getFlag()==2) lendListService.updateFlag2(lendList.get(currId+i).getSerNum()); } pageList.add(lendList.get(currId+i)); } page.setSize(5); page.setCurrent(current); page.setTotal(count); //计算分页总页数 page.setPages(pages); page.setRecords(pageList); model.addAttribute("page",page); return "html/reader/reader_return_books"; } //查询所有已还书 @RequestMapping("/selectAll") public String selectAll(int id,int current, Model model){ User user = userService.getById(id); model.addAttribute("user",user); List<LendList> lendList = lendListService.selectByReader2(id); int size = 10; Page<LendList> page = new Page<>(current,size); //总数据数 int count = lendList.size(); //总页数 int pages=count %size == 0 ? count/size :count/size+1; //让页码保持在合理范围 if (current==0) current++; if (current>pages) current--; //计算当前页第一条数据的下标 int currId = current>1 ? (current-1)*size:0; List<LendList> pageList = new ArrayList<>(); for (int i=0; i<size && i<count - currId;i++){ pageList.add(lendList.get(currId+i)); } page.setSize(size); page.setCurrent(current); page.setTotal(count); //计算分页总页数 page.setPages(pages); page.setRecords(pageList); model.addAttribute("page",page); return "html/reader/reader_lend_list"; } //删除借还信息 @RequestMapping("/deleteOne") public String deleteOne(int serNum,int id,int current,Model model){ lendListService.removeById(serNum); User user = userService.getById(id); model.addAttribute("id",user.getId()); model.addAttribute("current",current); return "forward:/lend/selectAll"; } //图书借阅 @RequestMapping("/addOne") public String addOne(int id,int bookId,int current,int classId,int flag,String name,Model model){ //获取当前系统时间 Date date1=new Date(); Calendar calendar = Calendar.getInstance(); calendar.setTime(date1); //修改为30天后 calendar.add(Calendar.DAY_OF_MONTH, 30); Date date2 = calendar.getTime(); //添加一条借阅信息 LendList lendList = new LendList(); lendList.setBookId(bookId); lendList.setReaderId(id); lendList.setLendDate(date1); lendList.setBackDate(date2); lendList.setFlag(0); lendList.setLossflag(0); lendListService.save(lendList); //更新图书存量 BookInfo book = bookInfoService.getById(bookId); int number = book.getNumber()-1; book.setNumber(number); bookInfoService.updateById(book); if (flag==0){ System.out.println(classId); System.out.println(name); model.addAttribute("id",id); model.addAttribute("current",current); return "forward:/book/selectAll"; }else{ model.addAttribute("id",id); model.addAttribute("current",current); model.addAttribute("classId",classId); model.addAttribute("name",name); return "forward:/book/selectSome"; } } //图书挂失页面 @RequestMapping("/toUpdateOne") public String toUpdateOne(int id,int current,Model model){ User user = userService.getById(id); model.addAttribute("user",user); List<LendList> lendList = lendListService.selectByReader(id); Page<LendList> page = new Page<>(current,5); //总数据数 int count = lendList.size(); //总页数 int pages=count %5 == 0 ? count/5 :count/5+1; //让页码保持在合理范围 if (current==0) current++; if (current>pages) current--; //计算当前页第一条数据的下标 int currId = current>1 ? (current-1)*5:0; List<LendList> pageList = new ArrayList<>(); Date date1=new Date(); for (int i=0; i<5 && i<count - currId;i++){ Date date2 = lendList.get(currId+i).getBackDate(); if (date1.compareTo(date2)==1){ if (lendList.get(currId+i).getFlag()==0) lendListService.updateFlag(lendList.get(currId+i).getSerNum()); } if (date1.compareTo(date2)<1){ if (lendList.get(currId+i).getFlag()==2) lendListService.updateFlag2(lendList.get(currId+i).getSerNum()); } pageList.add(lendList.get(currId+i)); } page.setSize(5); page.setCurrent(current); page.setTotal(count); //计算分页总页数 page.setPages(pages); page.setRecords(pageList); model.addAttribute("page",page); return "html/reader/reader_guashi_books"; } //图书挂失操作 @RequestMapping("/updateOne") public String updateOne(int id,int current,int serNum,Model model){ model.addAttribute("current",current); model.addAttribute("id",id); Date date=new Date(); lendListService.update1(serNum,date); return "forward:/lend/toUpdateOne"; } //图书解挂页面 @RequestMapping("/toUpdateTwo") public String toUpdateTwo(int id,int current,Model model){ User user = userService.getById(id); model.addAttribute("user",user); List<LendList> lendList = lendListService.selectByReader3(id); Page<LendList> page = new Page<>(current,5); //总数据数 int count = lendList.size(); //总页数 int pages=count %5 == 0 ? count/5 :count/5+1; //让页码保持在合理范围 if (current==0) current++; if (current>pages) current--; //计算当前页第一条数据的下标 int currId = current>1 ? (current-1)*5:0; List<LendList> pageList = new ArrayList<>(); for (int i=0; i<5 && i<count - currId;i++){ pageList.add(lendList.get(currId+i)); } page.setSize(5); page.setCurrent(current); page.setTotal(count); //计算分页总页数 page.setPages(pages); page.setRecords(pageList); model.addAttribute("page",page); return "html/reader/reader_jiegua_books"; } //图书解挂操作 @RequestMapping("/updateTwo") public String updateTwo(int id,int current,int serNum,Model model){ model.addAttribute("current",current); model.addAttribute("id",id); lendListService.update2(serNum); return "forward:/lend/toUpdateTwo"; } //图书赔偿操作 @RequestMapping("/updateThree") public String updateThree(int id,int current,int serNum,int bookId,Model model){ model.addAttribute("current",current); model.addAttribute("id",id); Date date=new Date(); lendListService.update3(serNum,date); //更新图书存量 BookInfo book = bookInfoService.getById(bookId); int number = book.getNumber()+1; book.setNumber(number); bookInfoService.updateById(book); return "forward:/lend/toUpdateTwo"; } //图书归还操作 @RequestMapping("/updateFour") public String updateFour(int id,int current,int serNum,int bookId,Model model){ model.addAttribute("current",current); model.addAttribute("id",id); Date date=new Date(); lendListService.update4(serNum,date); //更新图书存量 BookInfo book = bookInfoService.getById(bookId); int number = book.getNumber()+1; book.setNumber(number); bookInfoService.updateById(book); return "forward:/lend/selectSome"; } //图书续借操作 @RequestMapping("/updateFive") public String updateFive(int id,int current,int serNum,Model model){ model.addAttribute("current",current); model.addAttribute("id",id); //获取当前的归还时间 Date date = lendListService.getDate(serNum); Calendar calendar = Calendar.getInstance(); calendar.setTime(date); //修改为30天后 calendar.add(Calendar.DAY_OF_MONTH, 30); Date date1 = calendar.getTime(); lendListService.updateDate(serNum,date1); return "forward:/lend/selectSome"; } //管理员的查询全部借还信息 @RequestMapping("/select1") public String select1(int id,int current,Model model){ User user = userService.getById(id); model.addAttribute("user",user); List<LendList> lendList = lendListService.select1(); int size = 10; Page<LendList> page = new Page<>(current,size); //总数据数 int count = lendList.size(); //总页数 int pages=count %size == 0 ? count/size :count/size+1; //让页码保持在合理范围 if (current==0) current++; if (current>pages) current--; //计算当前页第一条数据的下标 int currId = current>1 ? (current-1)*size:0; List<LendList> pageList = new ArrayList<>(); for (int i=0; i<size && i<count - currId;i++){ pageList.add(lendList.get(currId+i)); } page.setSize(size); page.setCurrent(current); page.setTotal(count); //计算分页总页数 page.setPages(pages); page.setRecords(pageList); model.addAttribute("page",page); model.addAttribute("z",0); return "html/admin/admin_lend_list"; } //管理员的查询全部借还信息 @RequestMapping("/select2") public String select2(int id,int current,int x,String y,Model model){ User user = userService.getById(id); model.addAttribute("user",user); model.addAttribute("x",x); model.addAttribute("y",y); List<LendList> lendList = new ArrayList<>(); if (x!=4&&y.isEmpty()){ lendList = lendListService.select2(x); } else if (x==4&&!y.isEmpty()){ lendList = lendListService.select3(y); } else if (x!=4&&!y.isEmpty()){ lendList = lendListService.select4(x,y); } Page<LendList> page = new Page<>(current,5); //总数据数 int count = lendList.size(); //总页数 int pages=count %5 == 0 ? count/5 :count/5+1; //让页码保持在合理范围 if (current==0) current++; if (current>pages) current--; //计算当前页第一条数据的下标 int currId = current>1 ? (current-1)*5:0; List<LendList> pageList = new ArrayList<>(); for (int i=0; i<5 && i<count - currId;i++){ pageList.add(lendList.get(currId+i)); } page.setSize(5); page.setCurrent(current); page.setTotal(count); //计算分页总页数 page.setPages(pages); page.setRecords(pageList); model.addAttribute("page",page); model.addAttribute("z",1); return "html/admin/admin_lend_list"; } //催还操作 @RequestMapping("/update1") public String update1(int id,int current,int serNum,Model model){ model.addAttribute("id",id); model.addAttribute("current",current); lendListService.updateOne(serNum); return "forward:/lend/select1"; } //删除操作 @RequestMapping("/delete") public String delete(int id,int current,int serNum,Model model){ model.addAttribute("id",id); model.addAttribute("current",current); lendListService.removeById(serNum); return "forward:/lend/select1"; } }
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