Java Datei hochladen, umbenennen, Datei beim hochladen

Wenn Sie auf der Suche nach einer Antwort, wo Sie können die Datei hochladen und Namen ändern, und stecken Sie es in die Datenbank ein, hier ist es

<%
   File file ;
   int maxFileSize = 5000 * 1024;
   int maxMemSize = 5000 * 1024;
   ServletContext context = pageContext.getServletContext();
   String filePath = "/NVS_upload/NVS_school_facilities_img/";
   String title=null,description=null,facility_id=null;
   ArrayList<String> imagepath=new ArrayList<String>();  
   String completeimagepath=null;

   //Verify the content type
   String contentType = request.getContentType();
   int verify=0;
   //String school_id=null;
   String exp_date=null;
   String rel_date=null;
   int school_id=0;
   String title_hindi=null;
   String description_hindi=null;

   if ((contentType.indexOf("multipart/form-data") >= 0)) {
      DiskFileItemFactory factory = new DiskFileItemFactory();
      //maximum size that will be stored in memory
      factory.setSizeThreshold(maxMemSize);

      //Location to save data that is larger than maxMemSize.
      factory.setRepository(new File("c:\\temp"));

      //Create a new file upload handler
      ServletFileUpload upload = new ServletFileUpload(factory);

      //maximum file size to be uploaded.
      upload.setSizeMax( maxFileSize );

      try { 
         //Parse the request to get file items.
         List fileItems = upload.parseRequest(request);

         //Process the uploaded file items
         Iterator i = fileItems.iterator();



         while ( i.hasNext () ) {
            FileItem fi = (FileItem)i.next();
            if ( !fi.isFormField () ) {
               //Get the uploaded file parameters
               String fieldName = fi.getFieldName();
               String fileName = fi.getName();
               boolean isInMemory = fi.isInMemory();
               long sizeInBytes = fi.getSize();
               //this genrates unique file name
               String id = UUID.randomUUID().toString();
               //we are splitting file name here such that we can get file name and extension differently
               String[] fileNameSplits = fileName.split("\\.");
              //extension is assumed to be the last part
               int extensionIndex = fileNameSplits.length - 1;
               //add extension to id
               String newfilename= id + "." + fileNameSplits[extensionIndex];
               //File newName = new File(filePath + "/" +);
               //this stores the new file name to arraylist so that it cn be stored in database
               imagepath.add(newfilename);  

               File uploadedFile = new File(filePath , newfilename);   
               fi.write(uploadedFile);


               out.println("Uploaded Filename: " + filePath + 
               newfilename + "<br>");
            }

            else if (fi.isFormField()) {


      if(fi.getFieldName().equals("title"))
        {   
          title=fi.getString();

          out.println(title);
        }


        if(fi.getFieldName().equals("description"))
        {   
             description=fi.getString();
             //out.println(description);
        }



        if(fi.getFieldName().equals("activity_name"))
        {   
             facility_id=fi.getString();
             //out.println(facility_id);
        }

if(fi.getFieldName().equals("rel_date"))
        {   
             rel_date=fi.getString();
             //out.println(school_id);
        }




        if(fi.getFieldName().equals("exp_date"))
        {   
             exp_date=fi.getString();
            //out.println(school_id);
        }


if(fi.getFieldName().equals("school_id"))
        {   
             school_id=Integer.valueOf(fi.getString());
            //out.println(school_id);
        }

if(fi.getFieldName().equals("title-hindi"))
        {   
             title_hindi=fi.getString();
            //out.println(school_id);
        }

if(fi.getFieldName().equals("description-hindi"))
        {   
            description_hindi=fi.getString();
             out.println(school_id);
        }

    }
         }
         out.println("</body>");
         out.println("</html>");
      } catch(Exception ex) {
         out.println(ex);
      }
   } 

   else {
      out.println("<html>");
      out.println("<head>");
      out.println("<title>Servlet upload</title>");  
      out.println("</head>");
      out.println("<body>");
      out.println("<p>No file uploaded</p>"); 
      out.println("</body>");
      out.println("</html>");
   }
%>

<%
try{


  completeimagepath=imagepath.get(0)+","+imagepath.get(1)+","+imagepath.get(2);


        Connection conn = null;
        Class.forName("org.postgresql.Driver").newInstance();
        conn = DriverManager.getConnection(
                "connection url");

PreparedStatement ps=conn.prepareStatement("INSERT INTO activities_upload (activity_name,title,description,pdfname,publish_date,expiry_date,title_hindi,description_hindi,school_id) VALUES(?,?,?,?,?,?,?,?,?)");
ps.setString(1,facility_id);
ps.setString(2,title);
ps.setString(3,description);
ps.setString(4,completeimagepath);
ps.setDate(5,java.sql.Date.valueOf(rel_date));
ps.setDate(6,java.sql.Date.valueOf(exp_date));
ps.setString(7,title_hindi);
ps.setString(8,description_hindi);
ps.setInt(9,school_id);

 verify=ps.executeUpdate();



        }

        catch(Exception e){
        out.println(e);

        }

    if(verify>0){
    HttpSession session = request.getSession(true);

    session.setAttribute("updated","true");
    response.sendRedirect("activitiesform.jsp");


    }


    %>

InformationsquelleAutor Shubh