Handling FileNotFoundException

[Kaushal Sinha]

Hi All,
I have a java program which will read a file containing email addresses from a file and also a unique number from the same file . I have to send an email to each email address with a file attachment , the name of the file is derived using ths unique number in the address file. The problem I am having is when the file does not exist for a particular person. What I really want to do is not send the email to the person , for whom the file does not exists , but still continue to send email to others who do have a file corresponding to their numbers.
Here is teh code I am using to do this..

import java.io.*;
import java.util.Properties;
import javax.mail.*;
import javax.mail.internet.*;
import javax.activation.*;
public class SendReport {
  public static void main (String args[]) throws Exception {
    String host = "smtphost";
    String from = "from_address";
    String filename = "D:\\runprog\\cmds\\Header.txt";
    String line1, mailtxt;
    mailtxt = "\n";
    FileInputStream f1 = new FileInputStream(filename);
    BufferedReader in1 = new BufferedReader(new InputStreamReader(f1));
    while ((line1 = in1.readLine()) != null) {
       mailtxt = mailtxt + line1 + "\n" ;
    }
    Properties props = System.getProperties();
    props.put("mail.smtp.host", host);
    Session session = Session.getInstance(props, null);
    String filename1 = "" ;
    try {      String line, school, email ;
         FileInputStream f = new FileInputStream("D:\\temp\\add.txt");
 BufferedReader in = new BufferedReader(new InputStreamReader(f));
         while ((line = in.readLine()) != null) {
            school = line.substring(0,3);
            school = "S109" + school + ".txt";
            email = line.substring(74,104);
            Message message = new MimeMessage(session);
            message.setFrom(new InternetAddress(from));
            message.addRecipient(Message.RecipientType.TO,new InternetAddress(email));
            System.out.println(email);
            message.setSubject("Final 109, Summary Report");
            BodyPart messageBodyPart = new MimeBodyPart();
            messageBodyPart.setText(mailtxt);
      
            Multipart multipart = new MimeMultipart();
     
            multipart.addBodyPart(messageBodyPart);
            MimeBodyPart mbp2 = new MimeBodyPart();
            filename1 = "D:\\Runprog\\cmds\\" + school ;
            System.out.println(filename1);
            File file = new File(filename1);
            FileDataSource fds = new FileDataSource(file);
            
            mbp2.setFileName(file.getName());
            mbp2.setDisposition(Part.ATTACHMENT);
            mbp2.setDescription("Attached file: " + file.getName());
            mbp2.setDataHandler(new DataHandler(fds)); 
            multipart.addBodyPart(mbp2);
            message.setContent(multipart);
 
            Transport.send(message); }
    }   catch (FileNotFoundException e) {
            System.out.println(filename1 + "NOT Found");
    }   catch (Exception e) {
    e.printStackTrace();
    }
    }
}

Thanks.

[Valentin Crettaz]

just move the catch block for FileNotFoundException inside the while loop and when one of such occurs just discard it with, for instance, a continue statement and proceed to the next file
HIH
------------------
Valentin Crettaz
Sun Certified Programmer for Java 2 Platform