How to upload files directly in a folder inn java using jsp and servlet

Question

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This is my jsp file

XML

<form method="post" action="UploadServlet" enctype="multipart/form-data">
Select file to upload:
<input type="file" name="dataFile" id="fileChooser"/><br/><br/>
<input type="submit" value="Upload" />
</form>

and I have made a folder whenever there is new user

SQL

File dir = new File("D:\\nameoffolder2");
           dir.mkdir();

now how to store the uploaded files in a particular folder.??

Posted 10-Sep-15 9:37am

Member 9671810

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Comments

Mohibur Rashid 10-Sep-15 20:37pm

You need to find out two things:
1. How to upload anything with JSP.
2. How to copy/move them in the destination folder.

Google them

1 solution

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Member 9671810 · Accepted Answer · 2015-09-12T01:09:00

write jsp code

XML

 <form method="post" action="upload" enctype="multipart/form-data">
Select file to upload:
<input type="file" name="dataFile" id="fileChooser"/><br/><br/>
<input type="submit" value="Upload" />

write servlet code

first include jar file orielly.cos.jar

then import this

C#

import java.util.Enumeration;
import com.oreilly.servlet.MultipartRequest;

public class upload extends HttpServlet {

    private String webTempPath;
    
    @Override
    public void init()
    {
    webTempPath = getServletContext().getRealPath("/") + "data";
    }
    
    
    

    
    
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        try (PrintWriter out = response.getWriter()) {
            /* TODO output your page here. You may use following sample code. */
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet upload</title>");            
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet upload at " + request.getContextPath() + "</h1>");
            out.println("</body>");
            out.println("</html>");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        throw new ServerException("Get method used with" + getClass().getName() + ":Post method required");
      //  processRequest(request, response);
    }

  
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        
        MultipartRequest mpr = new MultipartRequest(request, webTempPath,10*1024*1024);
        Enumeration enumr = mpr.getFileNames();
        
        response.setContentType("text/html");
        PrintWriter out = response.getWriter();
        
        
        out.println("<html>");
        out.println("<head>");
        out.println("<title>Server upload</title>");
        out.println("</head>");
        out.println("<body>");
        for(int i=1;enumr.hasMoreElements();i++)
        out.println("The name of the uploaded file" + i + "is" + mpr.getFilesystemName((String)enumr.nextElement()) + "<br><br>");
        out.println("</body>");
        out.println("</html>");
    
        
        
        
        
        processRequest(request, response);
    }

   
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}