Forum:

Upload files from client

Ranch Hand

Posts: 33

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

Can some one please tell me how to upload files from a client machine to a particular drive on server using jsp - servlets

Mandar Max

Ranch Hand

Posts: 38

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

Take a look at - http://jakarta.apache.org/commons/fileupload/

"The trouble with doing something right the first time is that nobody appreciates how difficult it was!"

Amod Mulay

Ranch Hand

Posts: 33

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

hi mandar
i downloader the jar .... can youu give me some code to look at coz i am not able to work it out properly

Mandar Max

Ranch Hand

Posts: 38

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

I presume that you already know how to write/deploy/test servlet applications.

Step1 - Create a servlet application. Implement the doPost() method of servlet and add code as per the usage guide on apache file upload.

Step2 - Create an HTML form like this:

Provide URL of the servlet in place of action tag.

Step3 - Run the server and test the file upload form

You can always find a lot of examples using Google.

Cheers

"The trouble with doing something right the first time is that nobody appreciates how difficult it was!"

Amod Mulay

Ranch Hand

Posts: 33

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

hi mandar
i have actually done that and implemented in my application but for some reason i am getting a n error
java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream
org.apache.commons.fileupload.disk.DiskFileItemFactory.createItem(DiskFileItemFactory.java:179)
org.apache.commons.fileupload.FileUploadBase.createItem(FileUploadBase.java:500)
org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:367)
org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:116)
org.apache.jsp.jsp.ManualAttendance.upload_jsp._jspService(upload_jsp.java:69)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)

i dont know whats wrong...my code is like this

<%@ page contentType="text/html;charset=windows-1252"%>
<%@ page import="org.apache.commons.fileupload.DiskFileUpload"%>
<%@ page import="org.apache.commons.fileupload.FileItem"%>
<%@ page import="java.util.List"%>
<%@ page import="java.util.Iterator"%>
<%@ page import="java.io.File"%>
html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
<title>Process File Upload</title>
</head>
<%
System.out.println("Content Type ="+request.getContentType());

DiskFileUpload fu = new DiskFileUpload();
// If file size exceeds, a FileUploadException will be thrown
fu.setSizeMax(1000000);

List fileItems = fu.parseRequest(request);
Iterator itr = fileItems.iterator();

while(itr.hasNext()) {
FileItem fi = (FileItem)itr.next();

//Check if not form field so as to only handle the file inputs
//else condition handles the submit button input
if(!fi.isFormField()) {
System.out.println("\nNAME: "+fi.getName());
System.out.println("SIZE: "+fi.getSize());
//System.out.println(fi.getOutputStream().toString());
File fNew= new File(application.getRealPath("/"), fi.getName());

System.out.println(fNew.getAbsolutePath());
fi.write(fNew);
}
else {
System.out.println("Field ="+fi.getFieldName());
}
}
%>
<body>
Upload Successful!!
</body>
</html>

and html

<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=windows-1252"/>
<TITLE>File Upload Page</TITLE>
</HEAD>
<BODY>Upload Files
<FORM name="filesForm" action="upload.java"
method="post" enctype="multipart/form-data">
File 1:<input type="file" name="file1"/><br/>

<input type="submit" name="Submit" value="Upload Files"/>
</FORM>
</BODY>
</HTML>

Mandar Max

Ranch Hand

Posts: 38

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

The reason you are getting this error is a dependent class org.apache.commons.io.output.DeferredFileOutputStream is not on the classpath. You need to check the relevent documentation on dependencies. The DeferredFileOutputStream class is part of Jakarta commons IO library.

"The trouble with doing something right the first time is that nobody appreciates how difficult it was!"

Bernard Sigmund Gustav

Ranch Hand

Posts: 170

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

I have tried using the file upload.
try javazoom
its easy to deploy and understand.

I do have a question though.
How do i delete a file upon uploading?
Or maybe just move the file instead of copying it when uploading?

Vishnu Prakash

Ranch Hand

Posts: 1026

posted 18 years ago

Number of slices to send:

Optional 'thank-you' note:

Send

i have actually done that and implemented in my application but for some reason i am getting a n error
java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream

You need to include commons-io-1.1.jar along with commons-fileupload-1.1.jar

Servlet Spec 2.4/ Jsp Spec 2.0/ JSTL Spec 1.1 - JSTL Tag Documentation

Amod Mulay

Ranch Hand

Posts: 33

posted 18 years ago