Java上傳工具類

package cn.lonwin.rcs.rcscommon.utils;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.multipart.MultipartFile;

import java.io.*;
import java.util.*;

public class UploadUtils {

    @Value("${upload.folder}")
    private static String uploadPath;


    public static Map<String, Object> reportData(MultipartFile file,String module,Long picId){
        Map<String, Object> resultMap = new HashMap<String, Object>();

        String mon;
        String day1;
        Calendar now = Calendar.getInstance();
        int year = now.get(Calendar.YEAR);  //當前年
        int month =  (now.get(Calendar.MONTH) + 1) ;  //當前月
        int day = now.get(Calendar.DAY_OF_MONTH);  //當前日
        if(month<10){
            mon = "0"+month;
        }else{
            mon=month+"";
        }
        if(day<10){
            day1 = "0"+day;
        }else{
            day1 = ""+day;
        }
        String wjj = year+mon+day1;//文件夾名稱

        Map<String, Object> pointMap = new HashMap<String, Object>();


        Map<String, Object> mediaMap = new HashMap<String, Object>();

        try {

            String media_id = "";
            String filePath = "D:/xxxxxxx/"+module+"/"+wjj; //文件路徑
            System.out.println(uploadPath);
//            String filePath = uploadPath + "/" +module+"/"+wjj; //文件路徑

            String filePath_sjk = "/" +module+"/"+wjj ;  //存到數據庫中的路徑名


            List<Map<String,Object>> mediaList = new ArrayList<Map<String,Object>>();

            String filename = file.getOriginalFilename();
            String fileType =filename.substring(filename.lastIndexOf(".")+1);

            String newName = String.valueOf(picId) + "."+fileType;

            String path = "/" +module+"/"+wjj + "/" + newName;

            upFile(file.getInputStream(),newName,filePath);


            resultMap.put("pictureType", fileType);//文件擴展名
            resultMap.put("path", path);
            resultMap.put("pictureNm", filename);

        } catch (Exception e) {
            // TODO: handle exception
            e.printStackTrace();
        }
        return resultMap;
    }


    public static void upFile(InputStream is, String fileName, String filePath) {
        FileOutputStream fos = null;
        BufferedOutputStream bos = null;
        BufferedInputStream bis = null;
        File file = new File(filePath);
        if (!file.exists()) {
            file.mkdirs();
        }
        File f = new File(filePath + "/" + fileName);
        try {
            bis = new BufferedInputStream(is);
            fos = new FileOutputStream(f);
            bos = new BufferedOutputStream(fos);
            byte[] bt = new byte[4096];
            int len;
            while ((len = bis.read(bt)) > 0) {
                bos.write(bt, 0, len);
            }
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                if (null != bos) {
                    bos.close();
                    bos = null;
                }
                if (null != fos) {
                    fos.close();
                    fos = null;
                }
                if (null != is) {
                    is.close();
                    is = null;
                }
                if (null != bis) {
                    bis.close();
                    bis = null;
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }

    }

}