Messages posted by: colossusdub

Thanks, I managed to get it sorted. I am new to this whole java language so it's quite confusing for me!

Hi,

I have these two codes which both involve sockets. I can't figure out how to combine the smtp code into my first code. If you look at the first code where it prints out "you are at picture A" it is here were i want to be able to send an email. I am quite puzzled as how to combine the two codes to make it work. Any help would be greatly appreciated.

First Code:

import java.io.*;
import java.net.*;
import java.util.Scanner;
import java.io.File;

public class Combo2 {
    public static void main(String[] args) throws IOException {

Socket kkSocket = null;
        PrintWriter out = null;
        BufferedReader in = null;
	File yourFile = new File("outs.txt");
	yourFile.delete();

try {

kkSocket = new Socket("192.168.33.39", 12000);
            out = new PrintWriter(kkSocket.getOutputStream(), true);
            in = new BufferedReader(new InputStreamReader(kkSocket.getInputStream()));
        } catch (UnknownHostException e) {
            System.err.println("Don't know about host: Adam.");
            System.exit(1);
        } catch (IOException e) {
            System.err.println("Couldn't get I/O for the connection to: Adam.");
            System.exit(1);
        }

BufferedReader stdIn = new BufferedReader(new InputStreamReader(System.in));
        String fromServer;
        String fromUser;

while ((fromServer = in.readLine()) != null) 
	  {

if (fromServer.equals("Bye."))
                break;

try{
    // Create file 
    FileWriter fstream = new FileWriter("outs.txt", true);
        BufferedWriter outs = new BufferedWriter(fstream);

outs.write( fromServer);
outs.newLine();
    //Close the output stream
    outs.close();

}
catch (Exception e){//Catch exception if any
      System.err.println("Error: " + e.getMessage());
    }
FileReader fin = new FileReader("outs.txt");

Scanner src = new Scanner(fin);

while (src.hasNext()) {
		
		Double Tag = (src.nextDouble());
		Double x = (src.nextDouble());
		Double z = (src.nextDouble());
		Double y = (src.nextDouble());

if ((x<=19.92) && (y<=6.1543) && (y>=4.22))
{

System.out.println("You are at Picture A");
	
}
else if ((x<=19.92) && (y<=3) && (y>=1))
{
	
	
	System.out.println("You are at Picture B");

}
else 
{
System.out.println("Nope");
}
      
      }

}

out.close();
        in.close();
        stdIn.close();
        kkSocket.close();
    }
}

SMTP code:

import java.io.*;
import java.net.Socket;

public class Emailer {

public static void main(String[] args) throws Exception {
 String results = send("mailhost.computing.dcu.ie",
 25,
 "adam.keaney2@mail.dcu.ie",
 "adam.keaney2@mail.dcu.ie",
 "Test Email",
 "You got mail!");
 System.out.println(results);
 }

/* Sends an email.
     
     * @return The full SMTP conversation as a string.
     */
    public static String send(
            String host,
            int port,
            String to,
            String from,
            String subject,
            String message) throws Exception {

// Save the SMTP conversation into this buffer (for debugging)
        StringBuffer buffer = new StringBuffer();

try {

// Connect to the SMTP server running on the local machine. 
            Socket smtpSocket = new Socket(host, port);

//  send commands TO the server with this
            DataOutputStream output = new DataOutputStream(smtpSocket.getOutputStream());

//  recieve responses FROM the server with this
            BufferedReader input =
                    new BufferedReader(
                            new InputStreamReader(
                                    new DataInputStream(smtpSocket.getInputStream())));

try {

// Read the server's hello message
                read(input, buffer);

// Say hello to the server
                send(output, "HELO localhost.localdomain\r\n", buffer);
                read(input, buffer);

// Who is sending the email
                send(output, "MAIL FROM: " + from + "\r\n", buffer);
                read(input, buffer);

// Where the mail is going
                send(output, "RCPT to: " + to + "\r\n", buffer);
                read(input, buffer);

// Start the message
                send(output, "DATA\r\n", buffer);
                read(input, buffer);

// Set the subject
                send(output, "Subject: " + subject + "\r\n", buffer);

// If we detect HTML in the message, set the content type so it displays
 // properly in the recipient's email client.
 if (message.indexOf("<") == -1) {
 send(output, "Content-type: text/plain; charset=\"us-ascii\"\r\n", buffer);
 } else {
 send(output, "Content-type: text/html; charset=\"us-ascii\"\r\n", buffer);
 }

// Send the message
                send(output, message, buffer);

// Finish the message
                send(output, "\r\n.\r\n", buffer);
                read(input, buffer);

// Close the socket
                smtpSocket.close();

}
            catch (IOException e) {
                System.out.println("Cannot send email as an error occurred.");
            }
        }
        catch (Exception e) {
            System.out.println("Host unknown");
        }

return buffer.toString();

}

/**
     * Sends a message to the server using the DataOutputStream's writeBytes() method.
     * Saves what was sent to the buffer so we can record the conversation.
     */
    private static void send(DataOutputStream output,
                             String data,
                             StringBuffer buffer)
            throws IOException {
        output.writeBytes(data);
        buffer.append(data);
    }

/**
     * Reads a line from the server and adds it onto the conversation buffer.
     */
    private static void read(BufferedReader br, StringBuffer buffer) throws IOException {
        int c;
        while ((c = br.read()) != -1) {
            buffer.append((char) c);
            if (c == '\n') {
                break;
            }
        }
    }

}

Hi guys,

I am experiencing problems when trying to send emails using the smtp. I am using the code below but am getting the following errors:

220 hawk.dcu.ie ESMTP Service ready
HELO localhost.localdomain
250 hawk.dcu.ie
MAIL FROM: adam.keaney2@mail.dcu.ie
501 Syntax error in parameters or arguments to MAIL command
RCPT to: adam.keaney2@mail.dcu.ie
501 Syntax error in parameters or arguments to RCPT command
DATA
503 DATA command outside of MAIL transaction
Subject: Test Email
Content-type: text/html; charset="us-ascii"
You got mail!
.
500 Subj command unrecognized

import java.io.*;
import java.net.Socket;

/**
 * Simple SMTP Client that allows your Java App send emails.
 * Uses Java Sockets to connect directly to an SMTP server.
 * It supports sending of plain text or HTML emails.
 * Bonus: Unlike many other Java SMTP Sockets examples, this one actually works.
 *
 * @author Olly Oechsle, www.intelligent-web.co.uk
 */
public class Emailer {

public static void main(String[] args) throws Exception {
 String results = send("mail.dcu.ie",
 25,
 "adam.keaney2@mail.dcu.ie",
 "adam.keaney2@mail.dcu.ie",
 "Test Email",
 "You got mail!");
 System.out.println(results);
 }

/**
     * Sends an email.
     *
     * @return The full SMTP conversation as a string.
     */
    public static String send(
            String host,
            int port,
            String to,
            String from,
            String subject,
            String message) throws Exception {

// Save the SMTP conversation into this buffer (for debugging if necessary)
        StringBuffer buffer = new StringBuffer();

try {

// Connect to the SMTP server running on the local machine. Usually this is SendMail
            Socket smtpSocket = new Socket(host, port);

// We send commands TO the server with this
            DataOutputStream output = new DataOutputStream(smtpSocket.getOutputStream());

// And recieve responses FROM the server with this
            BufferedReader input =
                    new BufferedReader(
                            new InputStreamReader(
                                    new DataInputStream(smtpSocket.getInputStream())));