JQuery+Thymeleaf+SSM+SpringBoot书城项目的SpringBoot版本

package com.zhljava.bookspringboot.controller; import com.github.pagehelper.PageInfo; import com.zhljava.bookspringboot.pojo.Book; import com.zhljava.bookspringboot.pojo.CartItem; import com.zhljava.bookspringboot.pojo.User; import com.zhljava.bookspringboot.service.BookService; import com.zhljava.bookspringboot.service.CartService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.PathVariable; import javax.servlet.http.HttpSession; import java.util.List; @Controller public class BookController { @Autowired private BookService bookService; @Autowired private CartService cartService; @GetMapping("/book/edit") public String bookEdit(Book book, Integer pages, Integer pageNum) { if (book.getId() == null) { bookService.saveBook(book); return "redirect:/manager/book/" + pages; } else { bookService.updateBook(book); return "redirect:/manager/book/" + pageNum; } } @GetMapping("/book/delete/{id}") public String bookDelete(@PathVariable("id") Integer id, HttpSession session) { bookService.deleteBook(id); PageInfo<Book> page = (PageInfo<Book>) session.getAttribute("page"); return "redirect:/manager/book/" + page.getPageNum(); } @GetMapping("/book/update/{id}") public String bookUpdate(@PathVariable("id") Integer id, Model model) { Book book = bookService.getBookById(id); model.addAttribute("book", book); return "manager/book_edit"; } @GetMapping("/manager/book/{pageNum}") public String managerBook(@PathVariable("pageNum") Integer pageNum, HttpSession session) { PageInfo<Book> page = bookService.getBookForPage(pageNum, 4); session.setAttribute("page", page); return "manager/book_manager"; } @GetMapping("/index/book/{pageNum}") public String indexBook(@PathVariable("pageNum") Integer pageNum, Model model, HttpSession session, Integer minPage, Integer maxPage) { Integer minSession = (Integer) session.getAttribute("min"); Integer maxSession = (Integer) session.getAttribute("max"); if (minPage != null) { session.setAttribute("min", minPage); } else if (minSession != null) { minPage = minSession; } else { minPage = 0; session.setAttribute("min", minPage); } if (maxPage != null) { session.setAttribute("max", maxPage); } else if (maxSession != null) { maxPage = maxSession; } else { maxPage = Integer.MAX_VALUE; session.setAttribute("max", maxPage); } PageInfo<Book> page = bookService.getBookForScope(pageNum, 4, minPage, maxPage); model.addAttribute("page", page); this.setCount(session); return "index"; } private void setCount(HttpSession session) { User user = (User) session.getAttribute("user"); List<CartItem> list = cartService.getCartItemsByUserId(user.getId()); int count = 0; for (CartItem cartItem : list) { count += cartItem.getCount(); } session.setAttribute("count", count); } }