Hi Steve,
I believe you need to use the FileOutputStream in the below manner so that
it does not erase an existing file, for example:
import file.io.*
public class AltAppendFileOutputStream extends FileOutputStream{
protected FileInputStream file;
public AltAppendFileOutputStream (String fileName) throws IOException{
super((new RandomAccessFile(fileName, "rw")).getFD());
file = new FileInputStream (getFD());
int n = file.available();
do{
n -= file.skip(n);
}
while (n > 0);
}
}
Tom Kochanowicz
-----Original Message-----
From: A mailing list for discussion about Sun Microsystem's Java Servlet
API Technology. [mailto:[EMAIL PROTECTED]]On Behalf Of
Steven Lau
Sent: Sunday, December 12, 1999 11:07 AM
To: [EMAIL PROTECTED]
Subject: logging to text file
I'm doing some custom logging to a text file to make things easier and
cheaper than to logging to a database. The servlet would get the header
information, session Id and so on and attemps to log it to a file. The
problem I have is I don't know how to insert it to a file instead of
overwritting it. Instead of having multiple entries, it will open the file
and overwrite what's on it resulting in a file having only one log.
Here is my code:
try {
String outputFileName = "F:" + File.separatorChar + "LLog.txt";
FileWriter fout = new FileWriter(outputFileName);
String newLine = System.getProperty("line.separator");
String data = session.getValue("userID") + ";" + session.getId() + ";" +
request.getRemoteAddr() + ";" + date + newLine;
fout.write(data);
fout.close();
} catch(java.io.IOException e) {
System.out.println("Cannot access LLog.txt");
}
How would I modify it so it will insert the log at the end of the file and
not overwritting previous entries?
Thanks!!!!
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