hi,
I am novice in jsp, I have created one application which is for uploading file in jsp. Here is a first page for uploading file on server means on another computer.
client side code is below. Should I do this client side functionality in jsp. means I donot want use form. How can I send or post data on server side using jsp.Or any solution for this…
<form name=“frmhide” action=“http://ipadress:8080/testapp/server.jsp” method=“post”>
<label>Do you want to send data</label>
<input type=“file”/>
<input type=“submit” value=“Send” />
</form>
server side coding for saving the content of file on server.
String contentType = request.getContentType();
//here we are checking the content type is not equal to Null and
//s 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
String saveFile = file.substring(file.indexOf("filename=\\"") + 10);
saveFile = saveFile.substring(0, saveFile.indexOf("\
“));
saveFile = saveFile.substring(saveFile.lastIndexOf(”\\“)
+ 1, saveFile.indexOf(”\“”));
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(”
“, pos) + 1;
pos = file.indexOf(”
“, pos) + 1;
pos = file.indexOf(”
", 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(saveFile);
fileOut.write(dataBytes, startPos, (endPos - startPos));
fileOut.flush();
fileOut.close();
Thanks in Advance.