File upload

Expert:Jagadeesh
I am trying to do a file upload program. But, it shows an error. I am not able to understand that error. Please help me and clear that.
1.Input file sending program
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<%@ page language="java" %>
<HTml>
<HEAD><TITLE>Display file upload form to the user</TITLE></HEAD>
<% // for uploading the file we used Encrypt type of multipart/form-data and input of file type to browse and submit the file %>
<BODY> <FORM ENCTYPE="multipart/form-data" ACTION="single_upload_page.jsp" METHOD=POST>
<br><br><br>
<center><table border="2" >
<tr><center><td colspan="2"><p align="center"><B>PROGRAM FOR UPLOADING THE FILE</B><center></td></tr>
<tr><td><b>Choose the file To Upload:</b></td>
<td><INPUT NAME="F1" TYPE="file"></td></tr>
<tr><td colspan="2"><p align="right"><INPUT TYPE="submit" VALUE="Send File" ></p></td></tr>
<table>
</center>
</FORM>
</BODY>
</HTML>
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2. Processing program: single_upload_page.jsp
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<%@ page import="java.io.*" %>
<%@ page import="java.util.List" %>
<%@ page import="java.util.Iterator" %>
<%@ page import="java.io.File" %>
<%@ page import="org.apache.commons.fileupload.servlet.ServletFileUpload"%>
<%@ page import="org.apache.commons.fileupload.disk.DiskFileItemFactory"%>
<%@ page import="org.apache.commons.fileupload.*"%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%
long sizeInBytes=0;
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);
List items = null;
try{
items = upload.parseRequest(request);}
catch(Exception ex){out.println("Exxception"+ex);}
Iterator iter = items.iterator();
while (iter.hasNext())
{
FileItem item = (FileItem) iter.next();
sizeInBytes = item.getSize();
}
out.println(sizeInBytes);

//to get the content type information from JSP Request Header
String contentType = request.getContentType();

//here we are checking the content type is not equal to Null and as well as the passed data from mulitpart/form-data is greater than or equal to 0
if ((contentType != null) && (contentType.indexOf("multipart/form-data") >= 0)) {
DataInputStream in = new DataInputStream(request.getInputStream());
//we are taking the length of Content type data
int formDataLength = request.getContentLength();
byte dataBytes[] = new byte[formDataLength];
int byteRead = 0;
int totalBytesRead = 0;
//this loop converting the uploaded file into byte code
while (totalBytesRead < formDataLength) {
byteRead = in.read(dataBytes, totalBytesRead, formDataLength);
totalBytesRead += byteRead;
}

String file = new String(dataBytes);
//for saving the file name
//byte b1 = Byte.parseByte(file);
out.println(formDataLength);
out.println(file.length());
String saveFile = file.substring(file.indexOf("filename=\"") + 10);
//out.println(saveFile);
/* File up = new File(saveFile);
out.println(up.length()+" bytes");*/
saveFile = saveFile.substring(0, saveFile.indexOf("\n"));
//out.println(saveFile.length());
/*File up1 = new File(saveFile);
out.println(up1.length()+" bytes");*/
/* File name should be given in below savefile variable*/
saveFile = saveFile.substring(saveFile.lastIndexOf("\\") + 1,saveFile.indexOf("\""));
//saveFile = "801.txt";

int mid= saveFile.lastIndexOf(".");
String ext=saveFile.substring(mid+1,saveFile.length());
String fname = saveFile.substring(0,mid);
//out.println(saveFile.length());
out.println("Extension"+ext);
int lastIndex = contentType.lastIndexOf("=");
String boundary = contentType.substring(lastIndex + 1,contentType.length());
int pos;
//extracting the index of file
pos = file.indexOf("filename=\"");
pos = file.indexOf("\n", pos) + 1;
pos = file.indexOf("\n", pos) + 1;
pos = file.indexOf("\n", pos) + 1;
int boundaryLocation = file.indexOf(boundary, pos) - 4;
int startPos = ((file.substring(0, pos)).getBytes()).length;
int endPos = ((file.substring(0, boundaryLocation)).getBytes()).length;

// creating a new file with the same name and writing the content in new file
FileOutputStream fileOut = new FileOutputStream("C:/Program Files/Apache Software Foundation/Tomcat 6.0/webapps/my_class_new1/stud/images/"+fname+"."+ext);
fileOut.write(dataBytes, startPos, (endPos - startPos));
fileOut.flush();
fileOut.close();

%><Br><table border="2"><tr><td><b>You have successfully upload the file by the name of:</b>
<% out.println(saveFile); %></td></tr></table> <%
}
%>
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Error:
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HTTP Status 500 -

--------------------------------------------------------------------------------

type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException: An exception occurred processing JSP page /test/single_upload_page.jsp at line 15

12: ServletFileUpload upload = new ServletFileUpload(factory);
13: List items = null;
14: try{
15: items = upload.parseRequest(request);}
16: catch(Exception ex){out.println("Exxception"+ex);}
17: Iterator iter = items.iterator();
18: while (iter.hasNext())

Stacktrace:
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:505)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:398)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

root cause

javax.servlet.ServletException: java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:852)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:781)
org.apache.jsp.test.single_005fupload_005fpage_jsp._jspService(single_005fupload_005fpage_jsp.java:156)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

root cause

java.lang.NoClassDefFoundError: org/apache/commons/io/output/DeferredFileOutputStream
org.apache.commons.fileupload.disk.DiskFileItemFactory.createItem(DiskFileItemFactory.java:196)
org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:358)
org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:126)
org.apache.jsp.test.single_005fupload_005fpage_jsp._jspService(single_005fupload_005fpage_jsp.java:74)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:374)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)

note The full stack trace of the root cause is available in the Apache Tomcat/6.0.18 logs.

Apache Tomcat/6.0.18
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This processing file will store the file into a location and stores the file name into database.

PLEASE HELP ME. I AM STRUGGLING WITH THIS ERROR.

Answers

Hi friend,

I checked your program. Please add jar file in lib folder.

commons-fileupload-1.2.jar

commons-io-1.3.2.jar

I hope that, you problem will be solved. I am sending you a link. This link will help you.

http://www.roseindia.net/jsp/file_upload/index.shtml

Thanks.

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