匯入包:<dependency>
      				<groupId>commons-fileupload</groupId>
     				 <artifactId>commons-fileupload</artifactId>
     				 <version>1.3.3</version>
   			 </dependency>

Spring.xml:配置MultipartResolver:用於處理表單中的file

jsp頁面:

file類：`@Controller
public class file {
        @Autowired
        ServletContext context;
        @RequestMapping("fileUploadPage")
        public String fileUploadPage(@RequestParam(value="uploadFile") MultipartFile[] file, Model model, HttpServletRequest request) throws Exception {
            //判斷檔案是否為空
            if(file.length!=0){
                for (MultipartFile s:file) {
                //獲得原檔名
                String fileName = s.getOriginalFilename();
                //File.separator表示在 UNIX 系統上，此欄位的值為 /；在 Windows 系統上，它為 \，如：C:\tmp\test.txt和tmp/test.txt
                String filePath = "D:\\"+s.getOriginalFilename();
                //獲得當前日期
                Calendar ca = Calendar.getInstance();
                //拼接日期資料夾
                filePath += "" + ca.get(ca.YEAR) + (ca.get(ca.MONTH)+1) + ca.get(ca.DATE);
                File dateDir = new File(filePath);
                //判斷當前日期資料夾是否存在，不存在建立
                if(!dateDir.exists()){
                    dateDir.mkdirs();
                }
                //檔名由客戶端IP地址+系統當前毫秒陣列成
                filePath += File.separator + request.getRemoteAddr().replace(":","") + System.currentTimeMillis() + fileName.substring(fileName.lastIndexOf("."));
                // 複製本地檔案到伺服器
                FileCopyUtils.copy(s.getBytes(), new File(filePath));
                // 將檔案儲存路徑放到request作用域
                model.addAttribute("filePath", filePath);
                }
                return "success";
            }else{
                System.out.println("檔案上傳異常");
                return "input";
            }
        }
    }