資料都儲存到HttpServletRequest中

@Override
	public boolean insertBook(HttpServletRequest request) {
		try{
			//用於封裝資料
			Book book = new Book();
			
			//解析請求中的資料
			MultipartHttpServletRequest mpRequest = (MultipartHttpServletRequest) request;
			
			String bookName = mpRequest.getParameter("bookName");
			float price = Float.parseFloat(mpRequest.getParameter("price"));
			Integer num = Integer.parseInt(mpRequest.getParameter("num"));
			String date = mpRequest.getParameter("publishDate");
			SimpleDateFormat format = new SimpleDateFormat("yyyy-mm-dd");
			Date publishDate = format.parse(date);
			
			//封裝資料
			book.setBookName(bookName);
			book.setPrice(price);
			book.setNum(num);
			book.setPopular(0);
			book.setPublishDate(publishDate);
			
			MultipartFile file = mpRequest.getFile("imageUrl");
			String path = request.getSession().getServletContext().getRealPath("bookImage");
			String imageUrl = UploadUtil.uploadFile(file, path);
			book.setImageUrl(imageUrl);
			
			bookMapper.insertBook(book);
			return true;
		}catch(Exception e){
			e.printStackTrace();
			return false;
		}
		//return false;
	}
 

解析存放圖片的imageUrl

public static String uploadFile(MultipartFile file, String path) throws IOException{
		//上傳檔案的真實名稱
		String name = file.getOriginalFilename();
		//System.out.println(name);
		//獲取字尾名
		String suffixName = name.substring(name.lastIndexOf("."));
		//System.out.println(suffixName);
		//自定義隨機數
		String hash = Integer.toHexString(new Random().nextInt());
		String fileName = hash + suffixName;
		//System.out.println(fileName);
		
		File tempFile = new File(path, fileName);
		if(!tempFile.getParentFile().exists()){
			tempFile.getParentFile().mkdir();
		}
		if(tempFile.exists()){
			tempFile.delete();
		}
		tempFile.createNewFile();
		file.transferTo(tempFile);
		return tempFile.getName();
	}