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This is an HTML file which allows the user to select a file on the client's hard drive. This file needs to be uploaded to the server.
There are three ways of doing this: -
- CGI.
- NSAPI Service function upload file.
- Using Server Side Java.
The Java code is the implementation of the Server Side Java Applet. This can be done on both Enterprise
and Fast Track servers.
// Here is a server side java applet
// which gets the file from the client.
// The way it demonstrates it
// received the file from the client (meaning the file
// upload was successful) it just
// spits out the file back to the browser.
// Start of Server Side Java Applet code
import netscape.server.applet.HttpApplet;
import netscape.server.applet.ServerApplet;
import java.io.*;
import java.net.Socket;
import java.net.InetAddress;
import java.lang.IndexOutOfBoundsException;
import java.util.Hashtable;
import java.util.Enumeration;
class FormApplet extends HttpApplet {
public void run() throws Exception {
Hashtable formdata;
int x;
PrintStream out = getOutputStream();
InputStream is = getInputStream();
DataInputStream di = new DataInputStream(is);
if (returnNormalResponse("text/html")) {
out.print(header);
PrintStream POut = getOutputStream();
String line;
while ((line = di.readLine()) != null)
POut.println(line);
out.print(trailer);
}
}
private static final String header =
"<h1>Form results</h1>\n<ul>\n";
private static final String trailer = "</ul>\n";
}
// This is the HTML file calling the server side applet
// What this HTML file does is
// allows a user to select a file which
// can be uploaded to the server
<HTML>
<HEAD>
<TITLE>
Request Form
</TITLE>
</HEAD>
<BODY>
<H2>
Incident Submit Form
</H2>
<FORM ENCTYPE="multipart/form-data"
ACTION="http://graphite/server-java/FormApplet/"
METHOD=POST>
<TABLE BORDER=2 CELLPADDING=1>
<TR>
<TD> File Name </TD>
<TD COLSPAN=3><INPUT TYPE=FILE NAME="uploadfile"></TD>
</TR>
</TABLE>
<CENTER>
<INPUT TYPE="submit" VALUE="Submit">
<INPUT TYPE="reset" VALUE="Clear Entries">
</CENTER>
</FORM>
</BODY>
</HTML>
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