Uploading a file to a server using JSP
By: Ramesh Kumar Swarnkar
<!--
upload.jsp -->
<%@ page import="java.io.*" %>
<%
String contentType = request.getContentType();
System.out.println("Content type is :: " +contentType);
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);
String saveFile = file.substring(file.indexOf("filename=\"") +
10);
saveFile = saveFile.substring(0, saveFile.indexOf("\n"));
saveFile = saveFile.substring(saveFile.lastIndexOf("\\") +
1,saveFile.indexOf("\""));
//out.print(dataBytes);
int lastIndex = contentType.lastIndexOf("=");
String boundary = contentType.substring(lastIndex + 1,contentType.length());
//out.println(boundary);
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);
fileOut.write(dataBytes, startPos, (endPos - startPos));
fileOut.flush();
fileOut.close();
out.println("File saved as " +saveFile);
}
%>
Archived Comments
1. hi,
thier is an error coming with me when i am uploading file as that
java.lang.String
View Tutorial By: Tarun at 2013-02-17 03:13:21
2. heyy dis is not working with me .. plz suggest
nothing open when click to upload.jsp
View Tutorial By: sahil at 2012-10-26 11:03:41
3. hi
this is helpful, but file store it in my tomcat folder not goes to specific folder.
View Tutorial By: Mahesh at 2011-11-10 06:52:39
4. i m novice for jsp.
i enjoy to test jsp code.
so, I test this upload.jsp using tomcat.
View Tutorial By: thanhtunaung at 2011-08-18 07:44:10
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