Location finding error

Location needs from drive name:

My file uploading program has an error. It requires the location should be given from the directory name. Instead of this if only parent directory is given it shows the error as file not found. Below is the coding.The problem line is marked ^ character.
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<%@ page import="java.io.*" %>
<%@ include file="../jsp_files/dbcode.jsp"%>
<%@ include file="../jsp_files/security_code.jsp" %>
<%@ include file="../session_files/sessioncheck.jsp" %>
<script src="../scripts/blockrclick.js"></script>
<% int no = (Integer)session.getAttribute("deptno");
String num = String.valueOf(no);
String dno = "03PA"+num;
%>
<%
String ext = null;
int formDataLength=0;
//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
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;
}
if(formDataLength-202>102400){%>
<head>
<meta name="Microsoft Theme" content="sumipntg 011">
</head>

<body background="sumtextb.jpg" bgcolor="#FFFFFF" text="#000066" link="#3333CC" vlink="#666699" alink="#990099">



 
<div align="center">
<center><table border="0"><tr><td>

Your file size exceeded the limit. You have not uploaded your photo


</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>Close
Window</td></tr></table>
 </center>
</div>

<%}else{
try
{
Statement st = con.createStatement();
rs = st.executeQuery("select photo from stud_detail where deptno='"+dno+"'");
}
catch (Exception ex)
{
out.println("Exception"+ex);
}String path=null;
while(rs.next()){path=rs.getString(1);}
File obj = new File("C:/Program Files/Apache Software Foundation/Tomcat 6.0/webapps/mca2006sfssjc.co.in/stud/images/"+path);
boolean ans = obj.delete();
String file = new String(dataBytes);
//for saving the file name
String saveFile = file.substring(file.indexOf("filename=\"") + 10);
saveFile = saveFile.substring(0, saveFile.indexOf("\n"));
/* File name should be given in below savefile variable*/
saveFile = saveFile.substring(saveFile.lastIndexOf("\\") + 1,saveFile.indexOf("\""));
//saveFile = "801.txt";

int mid= saveFile.lastIndexOf(".");
ext=saveFile.substring(mid+1,saveFile.length());
String fname = saveFile.substring(0,mid);
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/mca2006sfssjc.co.in/stud/images/"+num+"."+ext);^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
fileOut.write(dataBytes, startPos, (endPos - startPos));
fileOut.flush();
fileOut.close();

%>

<head>
<meta name="Microsoft Theme" content="sumipntg 011">
</head>

<body background="sumtextb.jpg" bgcolor="#FFFFFF" text="#000066" link="#3333CC" vlink="#666699" alink="#990099">

 
<div align="center">
<center><table border="0"><tr><td>

You have successfully uploaded your photo


</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>

</td></tr><tr><td>Close
Window</td></tr></table>
 </center>
</div>

<%
}}
%>
<%
if(formDataLength-202<102400){
String name = num+"."+ext;

try
{
Statement st = con.createStatement();
int res = st.executeUpdate("update stud_detail set photo='"+name+"' where deptno='"+dno+"'");
}
catch (Exception ex)
{
out.println("Exception"+ex);
}
}%>
_______________________________________________________

View Answers

July 22, 2010 at 4:08 PM

Hi Friend,

Try the following code:

1)page.jsp:
<%@ page language="java" %>
<HTML>
<HEAD><TITLE>Display file upload form to the user</TITLE></HEAD>

<BODY> <FORM ENCTYPE="multipart/form-data" ACTION=
"uploadandstore.jsp" METHOD=POST>
 
<center>
<table border="0" bgcolor=#ccFDDEE>
<tr>
<center>
<td colspan="2" align="center">UPLOAD THE FILE<center></td>
</tr>
<tr>
<td colspan="2" align="center"> </td>
</tr>
<tr>
<td>Choose the file To Upload:</td>
<td><INPUT NAME="file" TYPE="file"></td>
</tr>
<tr>
<td colspan="2" align="center"> </td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" value="Send File"> </td>
</tr>
<table>
</center>
</FORM>
</BODY>
</HTML>

2)upload.jsp:
<%@ page import="java.io.*" %>
<%@ page import="java.sql.*" %>

<%
String saveFile="";
String contentType = request.getContentType();
if ((contentType != null) && (contentType.indexOf("multipart/form-data") >= 0)) {
DataInputStream in = new DataInputStream(request.getInputStream());
int formDataLength = request.getContentLength();
byte dataBytes[] = new byte[formDataLength];
int byteRead = 0;
int totalBytesRead = 0;
while (totalBytesRead < formDataLength) {
byteRead = in.read(dataBytes, totalBytesRead,formDataLength);
totalBytesRead += byteRead;
}
String file = new String(dataBytes);
saveFile = file.substring(file.indexOf("filename=\"") + 10);
saveFile = saveFile.substring(0, saveFile.indexOf("\n"));
saveFile = saveFile.substring(saveFile.lastIndexOf("\\") + 1,saveFile.indexOf("\""));
int lastIndex = contentType.lastIndexOf("=");
String boundary = contentType.substring(lastIndex + 1,contentType.length());
int pos;
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;

FileOutputStream fileOut = new FileOutputStream(saveFile);
fileOut.write(dataBytes, startPos, (endPos - startPos));
fileOut.flush();
fileOut.close();
%> <table border="2"><tr><td>You have successfully upload the file by the name of:
<% out.println(saveFile);%></td></tr></table>
<%
Connection connection = null;
String connectionURL = "jdbc:mysql://localhost:3306/test";;
ResultSet rs = null;
PreparedStatement psmnt = null;
FileInputStream fis;
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
connection = DriverManager.getConnection(connectionURL, "root", "root");
File f = new File(saveFile);
psmnt = connection.prepareStatement("insert into file(file_data) values(?)");
fis = new FileInputStream(f);
psmnt.setBinaryStream(1, (InputStream)fis, (int)(f.length()));
int s = psmnt.executeUpdate();
if(s>0) {
System.out.println("Uploaded successfully !");
}
else{
System.out.println("unsucessfull to upload file.");
}
}
catch(Exception e){e.printStackTrace();}
}
%>

Thanks