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add addmin controller #5

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194 changes: 194 additions & 0 deletions src/main/java/com/book/springboot/web/AdminController.java
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package com.book.springboot.web;

import com.book.springboot.mapper.AdminMapper;
import com.book.springboot.mapper.BookMapper;
import com.book.springboot.mapper.OrderMapper;
import com.book.springboot.mapper.UserMapper;
import com.book.springboot.pojo.Admin;
import com.book.springboot.pojo.Book;
import com.book.springboot.pojo.Order;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.util.ClassUtils;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.Mapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpSession;
import java.io.File;
import java.io.IOException;
import java.util.Calendar;
import java.util.List;
import java.util.Random;

@Controller
public class AdminController {
@Autowired
AdminMapper adminMapper;
@Autowired
BookMapper bookMapper;
@Autowired
OrderMapper orderMapper;
@Autowired
UserMapper userMapper;


@PostMapping("/admin/login")
public String login(Admin checkAdmin, Model model, HttpSession session) throws Exception {
Admin admin = adminMapper.getUserByUsername(checkAdmin);
if (admin == null) {
model.addAttribute("title", "登录失败");
model.addAttribute("message", "用户名不存在");
model.addAttribute("url", "/admin/login");
return "alert";
}
if (admin.getPassword().equals(checkAdmin.getPassword())) {
session.setAttribute("admin", admin);
// session.setAttribute("admin", true);
return "redirect:/admin";
} else {

return "login";
}

}

@GetMapping("/admin/login")
public String login() {
return "admin/login";
}

@GetMapping("/admin")
public String home(Model model, HttpSession session) {
Admin admin = (Admin) session.getAttribute("admin");
if (admin==null){
model.addAttribute("title","请登录");
model.addAttribute("message","请登录后操作");
model.addAttribute("url","/admin/login");
return "alert";
}
int book_count = bookMapper.countBook();
int order_count = orderMapper.countOrder();
int user_count = userMapper.countUser();
model.addAttribute("book_count",book_count);
model.addAttribute("order_count",order_count);
model.addAttribute("user_count",user_count);
return "admin/layout";
}



public static String getRandomString(int length){
String str="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
Random random=new Random();
StringBuffer sb=new StringBuffer();
for(int i=0;i<length;i++){
int number=random.nextInt(62);
sb.append(str.charAt(number));
}
return sb.toString();
}
@GetMapping("/admin/book")
public String bookList(Model m, HttpSession session,@RequestParam(value = "start", defaultValue = "0") int start, @RequestParam(value = "size", defaultValue = "9") int size) throws Exception {
// Car car = carMapper.getCarById(id);
// model.addAttribute("car",car);
PageHelper.startPage(start,size,"id desc");
List<Book> books=bookMapper.findAll();
PageInfo<Book> page = new PageInfo<>(books);
m.addAttribute("page", page);
return "admin/book/list";
}

@GetMapping("/admin/book/add")
public String addBook() {
return "admin/book/add";
}


@PostMapping("/admin/book/add")
public String saveBook(Book book,Model model, @RequestParam("images") MultipartFile file, HttpSession session) {
String fileName = file.getOriginalFilename();
// 获取文件的后缀名
String suffixName = fileName.substring(fileName.lastIndexOf("."));
// 这里我使用随机字符串来重新命名图片
fileName = Calendar.getInstance().getTimeInMillis() + getRandomString(4) + suffixName;
String path = ClassUtils.getDefaultClassLoader().getResource("").getPath();
File dest = new File(path+"../../src/main/webapp/images/" + fileName);
// 检测是否存在目录
if (!dest.getParentFile().exists()) {
dest.getParentFile().mkdirs();
}
try {
file.transferTo(dest);

//url的值为图片的实际访问地"" + fileName + "\"}";

} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
book.setImage(fileName);
bookMapper.save(book);
return "redirect:/book?id="+book.getId();
}


@GetMapping("/admin/book/edit")
public String editBook(int id,Model model) {
Book book = bookMapper.getBookById(id);
model.addAttribute("book",book);
return "admin/book/edit";
}

@PostMapping("/admin/book/edit")
public String changeCar(Book book, @RequestParam("images") MultipartFile file,Model model, HttpSession session) {
// Car car = carMapper.getCarById(id);
if (file.isEmpty()) {
bookMapper.changeWithOutImage(book);
} else {
String fileName = file.getOriginalFilename();
String suffixName = fileName.substring(fileName.lastIndexOf("."));
fileName = Calendar.getInstance().getTimeInMillis() + getRandomString(4) + suffixName;
String path = ClassUtils.getDefaultClassLoader().getResource("").getPath();
File dest = new File(path + "../../src/main/webapp/images/" + fileName);
if (!dest.getParentFile().exists()) {
dest.getParentFile().mkdirs();
}
try {
file.transferTo(dest);
book.setImage(fileName);
bookMapper.changeWithImage(book);
} catch (IllegalStateException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
}
return "redirect:/admin/book/edit?id=" + book.getId();
}

@GetMapping("/admin/order")
public String orderList(Model m, HttpSession session,@RequestParam(value = "start", defaultValue = "0") int start, @RequestParam(value = "size", defaultValue = "5") int size) throws Exception {
// Car car = carMapper.getCarById(id);
// model.addAttribute("car",car);
PageHelper.startPage(start,size,"id desc");
List<Order> orders=orderMapper.getAll();
PageInfo<Order> page = new PageInfo<>(orders);
m.addAttribute("page", page);
return "admin/order/list";
}

@GetMapping("/admin/order/good")
public String orderBook(int id,Model model) {
Order order = orderMapper.getOrderById(id);
order.setStatus("已发货");
orderMapper.updateStatus(order);
return "redirect:/admin/order";
}
}