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Upload files from client

 
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Can some one please tell me how to upload files from a client machine to a particular drive on server using jsp - servlets
 
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Take a look at - http://jakarta.apache.org/commons/fileupload/
 
Amod Mulay
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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
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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
 
Amod Mulay
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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
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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.
 
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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?
 
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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
 
Amod Mulay
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oh yeah that worked thankx!
 
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Since you seem to be working in JSP and not servlets, I'll move this thread to the JSP forum.
 
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