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Editorial Team
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Asked: 2026-05-27T23:55:06+00:00

I need a single page with a file upload and a text area where

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I need a single page with a file upload and a text area where the contents of the file are printed in this page.

At the moment I have a jsp file and a servlet:

Part of index.jsp :

 <form action="FileReader" ENCTYPE="multipart/form-data" method="POST">
 <textarea name="textinputarea" rows="14" cols="130" readonly>
  Some text 
 </textarea>
 <br> <br><tr>


  <td valign="top" align="left" height="200" width="33%">
  <img class="start_img" src="file_Selections.jpg"> <br> 

  <input type="hidden" name="MAX_FILE_SIZE" value="100000" />
  <input type="file" name="user_file" accept="text/xml">   
  <input type="submit" value="Validate" /> <br>
   </form>

Part of the servlet:

public void doPost(HttpServletRequest request, HttpServletResponse response)      
String name = request.getParameter("textinputarea");
(...)
}else {
String otherFieldName = item.getFieldName();
String otherFieldValue = item.getString();}}

(...)

out.println("<html>");
out.println("<head>");
out.println("<title>Processing get requests with data</title>");
out.println("</head>");

// body section of document
out.println("<body>");
while ((strLine = br.readLine()) != null) {

// Print the content on the console
out.println(strLine + "</br>");
 }
 out.println("</body>");

 // end of html document
 out.println("</html>");
  out.close();

  } catch (Exception e) {
 response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.toString());
 };
 }

This actually prints the content of file in a new page. I tried to give the same name of text area and the “String name = request.getParameter(“textinputarea”); “..

Thanks for your time!

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1 Answer

  1. Editorial Team

    All form fields are available in this else block which you completely ignored in the postprocessing.

    } else {
    String otherFieldName = item.getFieldName();
    String otherFieldValue = item.getString();
}

    Don’t ignore it. Those values represent the name=value pairs of regular form fields.

    Note that you cannot use getParameter() on a multipart/form-data encoded request. That’s exactly why you were using Apache Commons FileUpload to extract the file. You should use the same API to extract the other parts of a multipart/form-data request.

    See also:

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