HELP! How to send an ethernet_frame ?

I want to get the hardware address of the remote host.
but how can I send an ARP request through socket in java?
thanks

You could send a request to the server which identifies it as an arp request; the server executes an arp locally (using Runtime.exec() if its a Java based server) and passes the output back to client.

Similar Messages

Help, how to send an e-mail from JSP

I need to know if there's any method or library that helps me to send a mail from a web page, i need to send data from a query from mysql, does anybody knows how??? PLEASE!!!!

here are the links that can help you.. you must download the jar files needed in order for you to send mail using java
http://www.javaworld.com/javaworld/jw-10-2001/jw-1026-javamail.html
http://java.sun.com/products/javamail/
http://java.sun.com/products/javamail/FAQ.html

Need help : how to send 3 parameters over http using Java POST

I am trying to sending some data to agency company over http using Java POST
They need 3 parameters and some contents like below
1. Cmd : cmd=_RequestInsertNewLead
2 Live : False
3 XMLData : 3C%3Fxml+version%3D%........
I already have XML done ,but I don't know how to send these guy over http
is that like
this.out = new DataOutputStream(os);
out.writeBytes("Cmd");
out.writeBytes(" cmd=_RequestInsertNewLead");
out.writeBytes(" Live ");
out.writeBytes("False");
anyone could give help :)

First of all, are you getting any exception?
You didn't put much logging information in your code.
You can also try this.Instead of doing sos.println(".....") try to build the output string using string buffer.
Like:
StringBuffer sb = new StringBuffer();
sb.append("Some output");
sb.append("More output");
sos.print(sb.toString());
sos.flush();Let me know if this works.

Please help, how to send mails faster / send more mails per hour

hello,
in my application i am using mail sender class i have created to send mail to the users to participate in a survey. following is the code for it. i would like to know if there is anything wrong in it coz it takes to much time to send the mails it is taking 2 minustes to send 6 mails i.e 360 mails per hour only.
following is how i instantiate the mail sender class and then generate a http link string dynamically as it is different for all the user.
//////////class where mail sender is instantiated////////////////////
try
setConnection();
st=con.createStatement();
rs=st.executeQuery("select * from "+CNAME+"_campaign");
String SurveyT = new String();
while(rs.next())
     SurveyT = rs.getString(2);
rs.close();
rs=st.executeQuery("select * from "+CNAME+"_user");
ss = new MailSender();
while(rs.next())
     String userid = rs.getString("userid");
     String password = rs.getString("password");
StringBuffer message = new StringBuffer(BodyText.getText().trim());
if(SurveyT.equals("invitational") || SurveyT.equals("single"))
                                        message.append( "\n" + "http://"+IPadd.getText().trim()+"/"+CNAME+"/servlet/login?username="+userid+"&passw="+password);
                                        ss.send(FromField.getText().trim(),userid,SmtpServerID.getText().trim(),MailSub.getText().trim(),message.toString());
else if(SurveyT.equals("general"))
message.append( "\n" + "http://"+IPadd.getText().trim()+"/"+CNAME+"/Index.html");
ss.send(FromField.getText().trim(),userid,SmtpServerID.getText().trim(),MailSub.getText().trim(),message.toString());
st.close();
this.dispose();
catch(SQLException sqlex)
JOptionPane.showMessageDialog(null,sqlex.getMessage());
//Mail Sender class/////////////////
import javax.mail.*;
import javax.mail.internet.*;
import java.util.*;
import javax.swing.*;
public class MailSender
     String sentAddr,fromAddr,smtpServer,body,subject;
     public MailSender()
     //function send to send the mail
public void send(String from,String to,String smtps,String subj,String messagetext)
          fromAddr=new String(from);
          sentAddr=new String(to);
          smtpServer=new String(smtps);
          body=new String(messagetext);
          subject=new String(subj);
          try
               Properties props = System.getProperties();
               props.put("mail.smtp.host",smtpServer);
     Session session = Session.getDefaultInstance(props,null);
Message msg = new MimeMessage(session);
               msg.setFrom(new InternetAddress(fromAddr));
msg.setRecipients(Message.RecipientType.TO,InternetAddress.parse(sentAddr,false));
     msg.setSubject(subject);
     msg.setText(body);
msg.setHeader("Survey","MailCheck");
msg.setSentDate(new Date());
     Transport.send(msg);
     catch(MessagingException mex)
          JOptionPane.showMessageDialog(null,mex.getMessage());
}

Lots of variables here....Also my maths says only 180 per hour.... i.e. three a minute.
1) you are using a database to get info from. What is the average response time of the DB server? Looks like you are doing one SQL then reading the result table but does the initial SQL take a while?
2) how much data are you passing on to the SMTP server and how fast/slow is the link to that SMTP server? Work out the absolute max amount of data you can transfer over the link then get your average message size and work out a VERY theoretical Max number of messages a minute. Note that real life might approach 80% of this taking TCP/IP and SMTP overheads into account.
3) What sort of load is the SMTP server under? If it's busy you will be only getting a fraction of whatever bandwidth is available. Depending on its design it may be trying to deliver the first message you sent it while you are still pumping more messages down to it. SMTP servers may limit the number of connections per minute from another machine in order to defeat a denial of service attack. Your code makes a connection per email so this may have relevence here.
4) Raw horsepower always helps. When I write stuff to do things like this there is no nice GUI screen etc. Just basic Java that if it has to will write a log if something goes wrong. Maybe just maybe a counter on STD out to show it is still actually doing something. Keep the number of classes used down to the bare minimum. In the old days we used to spend days paring code to the bone - a skill somewhat lost these days.
Hope this gives you some help in finding the bottleneck.
Cheers,
SH

[Request For Help] How To Send Email Midlet Using Secure Socket ?

Hello, this is the first time i ask for help to forum.sun.com.
i try to make secure connection for send email from MIDlet. Maybe you can check to my code :
EmailMidlet.java
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
import javax.microedition.lcdui.;
public class EmailMidlet extends MIDlet implements CommandListener{
Display display = null;
// email form fields
TextField toField = null;
TextField subjectField = null;
TextField msgField = null;
Form form;
static final Command sendCommand = new Command("send", Command.OK, 2);
static final Command clearCommand = new Command("clear", Command.STOP, 3);
String to;
String subject;
String msg;
public EmailMidlet() {
display = Display.getDisplay(this);
form = new Form("Compose Message");
toField = new TextField("To:", "", 50, TextField.EMAILADDR);
subjectField = new TextField("Subject:", "", 15, TextField.ANY);
msgField = new TextField("MsgBody:", "", 90, TextField.ANY);
public void startApp() throws MIDletStateChangeException {
form.append(toField);
form.append(subjectField);
form.append(msgField);
form.addCommand(clearCommand);
form.addCommand(sendCommand);
form.setCommandListener(this);
display.setCurrent(form);
public void pauseApp() {
public void destroyApp(boolean unconditional) {
notifyDestroyed();
public void commandAction(Command c, Displayable d) {
String label = c.getLabel();
if(label.equals("clear")) {
destroyApp(true);
} else if (label.equals("send")) {
to = toField.getString();
subject = subjectField.getString();
msg = msgField.getString();
EmailClient client = new EmailClient(this,"[email protected]", to, subject, msg);
client.start();
}and EmailClient.java
import javax.microedition.io.;
import javax.microedition.lcdui.;
import java.io.;
import java.util.Date;
public class EmailClient implements Runnable {
private EmailMidlet parent;
private Display display;
private Form f;
private StringItem si;
private SecureConnection sc; //SSL
private InputStream is;
private OutputStream os;
private String smtpServerAddress = "smtp.gmail.com"; //SSL
String from;
String to;
String subject;
String msg;
public EmailClient(EmailMidlet m, String from, String to, String subject, String msg) {
parent = m;
this.from = from;
this.to = to;
this.subject = subject;
this.msg = msg;
display = Display.getDisplay(parent);
f = new Form("Email Client");
si = new StringItem("Response:" , " ");
f.append(si);
display.setCurrent(f);
public void start() {
Thread t = new Thread(this);
t.start();
public void run() {
try {
//SSL
sc = (SecureConnection)
Connector.open("ssl://"smtpServerAddress":465"); //smtp with SSL port 465
sc.setSocketOption(SocketConnection.LINGER, 5);
is = sc.openInputStream();
os = sc.openOutputStream();
os.write(("HELO there" "\r\n").getBytes());
os.write(("EHLO" "\r\n").getBytes());
os.write(("auth login" "\r\n").getBytes());
os.write(("dHVnYXNha2hpci50cmlhZGl0eWFAZ21haWwuY29t" "\r\n").getBytes());
os.write(("dGEuZW1haWxjbGllbnQ=" "\r\n").getBytes());
os.write(("MAIL FROM:<">\r\n").getBytes());
os.write(("RCPT TO:<">\r\n").getBytes());
os.write("DATA\r\n".getBytes());
// stamp the msg with date
os.write(("Date: " new Date() "\r\n").getBytes());
os.write(("From: "+from"\r\n").getBytes());
os.write(("To: "to"\r\n").getBytes());
os.write(("Subject: "subject"\r\n").getBytes());
os.write((msg+"\r\n").getBytes()); // message body
os.write(".\r\n".getBytes());
os.write("QUIT\r\n".getBytes());
StringBuffer sb = new StringBuffer();
int ch = 0;
while((ch = is.read()) != -1) {
sb.append((char) ch);
si.setText("SMTP server response - " + sb.toString());
} catch(IOException e) {
e.printStackTrace();
Alert a = new Alert
("TimeClient", "Cannot connect to SMTP server. Ping the server to make sure it is running...", null, AlertType.ERROR);
a.setTimeout(Alert.FOREVER);
display.setCurrent(a);
} finally {
try {
if(is != null) {
is.close();
if(os != null) {
os.close();
if(sc != null) {
sc.close();
} catch(IOException e) {
e.printStackTrace();
public void commandAction(Command c, Displayable s) {
if (c == Alert.DISMISS_COMMAND) {
parent.notifyDestroyed();
parent.destroyApp(true);
} When I try to debug project from netbeans, i found this error :
Starting emulator in debug server mode on port 2668
Connecting to 127.0.0.1 on port 2800
nbdebug:
Waiting for debugger on port 2668
Waiting for KVM...
Running with storage root temp.SonyEricsson_JP8_128x160_Emu10
KdpDebugTask connecting to debugger 1 ..
Running with locale: Indonesian_Indonesia.1252
Connected to KVM
Connection received.
Attached JPDA debugger to localhost:2668
java.io.IOException: error 10054 during TCP read +
at com.sun.midp.io.j2me.socket.Protocol.nonBufferedRead(Protocol.java:299)+
at com.sun.midp.io.BufferedConnectionAdapter.readBytes(BufferedConnectionAdapter.java:99)+
at com.sun.midp.io.BaseInputStream.read(ConnectionBaseAdapter.java:582)+
at com.sun.midp.ssl.Record.rdRec(+41)+
at com.sun.midp.ssl.Record.rdRec(+5)+
at com.sun.midp.ssl.In.refill(+18)+
at com.sun.midp.ssl.In.read(+29)+
at EmailClient.run(EmailClient.java:74)+
Execution completed.
5145824 bytecodes executed
9258 thread switches
1762 classes in the system (including system classes)
0 dynamic objects allocated (0 bytes)
0 garbage collections (0 bytes collected)
debug:
BUILD SUCCESSFUL (total time: 4 minutes 34 seconds)
Regard
Littlebro

Don't multipost and don't use the browser's back button to edit your posts as that creates multiple postings. I've removed the other thread you started with the same questio.
Also, don't post to long dead threads. I've blocked your post and locked the thread you resurrected.
db

Help: How to send response to user witch executed the workitem

Hi friends,
I want to execute MIGO transaction by workflow. I developed it by BAPI but, I'm using the PR_NAME parameter (on BAPI_GOODSMVT_CREATE HEADER) so it will be stored as the user witch executed MIGO.
I'm trying to send the follow variable: &_WORKITEM.EXECUTEDBYUSER.NAMEWITHLEADINGUS&, but it doesn't work. With variable can I use to do it ?
Glauco
Message was edited by: Glauco Kubrusly

Hi,
1-Check UNAME element in the WF container has both the import & export attributes checked.
->YES.
2-Check in the WF log if the UNAME element in the WF container is getting popualted with the approver's id.
->YES. NOW IT'S BACKING WITH THE CORRECT USER.
3-And lastly Check the BAPI independently and verify it is actually using the user id supplied or defaulting to the executing user's id.
->NOT FOR TASK MIGO IN BACKGROUND.
->NOT FOR BAPI INDENPENDENTLY RUN TOO. I run the funcion in foreground and put the user directly in the var uname. But the R/3 system stored as my user whose I logged in SAP. I know that it's wrong coz I put another user instead mine, and the MIGO document is with my sap user. I think parameter pr_name didn't work fine.
I discovered that the pr_name (BAPI_GOODSMVT_CREATE parameter) didn't work fine. Coz even foreground it's storing my actual logged user as document creator on MIGO, I know that coz I put another user in the test, but the function simply ignored this parameter. So always in background it will always store as wf-batch.
Message was edited by: Glauco Kubrusly

Help: how to send emails from FORMS?

Are there simple steps to send emails from FORMS?
Thank you in advance.
Jimmy

I'm sure there are many ways to send emails from Forms. Personally I never had to do this, but I can imagine following ways.
a) use UTL_SMTP-Package to send the email via your database
b) use a Java-Call
Peter

HELP!!! - How to send a file to a server?

How to send a file(as it is) to the server i'm connected to, if i have access to the output-stream?

Ummm read the APIs of anything you don't understand. Documentation is your friend, I hope you are not being lazy. But I'm in a good mood so here:
// Make sure you try to catch any IOExceptions
// Code expanded for clarity;
OutputStream yourOutputStream = getYourOutputStream; // You said you can get the outputstream to the server/socket. I assume you made a connection.
BufferedOutputStream bos = new BufferedOutputStream(
yourOutputStream ); // Always a good idea to use buffers
// Your object is your file
File yourObject = new File("blabla.jpg");
FileInputStream fis = new FileInputStream(yourObject);
byte[] b = new byte[1024]; // A good size read
while( fis.read(b) != -1){// read 1024 bytes into array at a time, returns -1 at end of file
bos.write(); //write to the server
fis.close(); // close the inputstream
yourObject = null; // help the gc
bos.flush(); // flush the buffer, close does this, but it is good form
bos.close(); // close the output to the server--Thunder
PS - The Duketer is in!

When I am on my home wifi I can send e-mail. When I am not on my home e-mail but on a wifi network or using the 3g network I cannot send e-mail. HELP HOW TO FIX.

When I am on my home wifi I can send e-mail. When I am not on my home e-mail but on a wifi network or using the 3g network I cannot send e-mail. HELP HOW TO FIX.

I know this question is a few years old now, but I recently found myself having the exact same issues;
Using my iphone or ipad at home created no problems at all, but I couldn't send e mails when away from my home network.
I recently switched broadband supplier at home and set up a new e mail address, then my problems began!
I openly admit I'm not great with technology and, to be honest, some of the answers provided on these forums confuse me more than the questions!
But this worked for me:
I went along the lines that the fault wasn't with my idevice but possibly with the broadband provider (in my case Plusnet) so I contacted their customer support.
They referred me to the set up process shown below;
From your home screen press Settings.
From the setting menu, choose Mail, Contacts, Calendars followed by Add Account…
From the Add Account… menu choose Other.
Fill in your Full Name, Email Address, Password and Description and press Next.If you need help with these, there's more detail underneath the screenshot.
Full name: Enter your name (or the name you'd like people to see when you send them email)
Email Address: Enter the address you're setting up, this could be a Plusnet address ([email protected]) or a hosted domain address ([email protected])
Password: Enter the password for your email address (I don't know what this is)
Description: Enter a useful description of the email address you're setting up (e.g. Mum's email). You can put whatever you want here
Press Next to continue.
More settings will appear. Some will already be filled in.Enter the Incoming and Outgoing Mail Server details and press Next. If you need help with these, there's more detail underneath the screenshot.
IMAP/POP This will default to IMAP - it's up to you which one you want to use (I don't know what to choose)
Incoming Mail Server settings
Host Name: For IMAP this is imap.plus.net - for POP, this is mail.plus.net
User Name & Password: Enter the username and password for the email address you're setting up (I don't know what these are)
Outgoing Mail Server settings
Host Name: relay.plus.net
User Name & Password: These are optional, but if you want to send mail while on the move (e.g. while connected to mobile or wireless networks), we recommend filling these in.Enter the username and password for the email address you're setting up (I don't know what these are)
When you're finished, press Next.
If the box shown below appears, press Yes (you may need to do this twice).
After a minute or two, your email address will be set up and ready to use.If you chose IMAP when setting up you’ll be able to choose whether you want to use Notes (if you chose POP you’ll be taken back to the settings screen from step 2). Press Save when you’re done.
That's all you need to do. To start checking your email, go back to your home screen and press Mail.
Now I fully understand that it may be different for each broadband provider but the processes must be similar.
The key appears to be in setting up the outgoing message server settings in step 5. Where it says "optional, but if you want to send mail while on the move (e.g. while connected to mobile or wireless networks), we recommend filling these in.
http://www.plus.net/support/email/setup/ios-setup.shtml#pagetop
Where it says "we recommend" I think it should read "you must fill these in"
I went back to Settings - Mail,Contacts, Calenders - click on the offending account and click on the account shown.
Under OUTGOING MAIL SERVER click on the server, in my case relay.plus.net, and click again to show the details. make sure you enter your user name and password and after a few seconds the account will verify and show a load of ticks.
I tried this on my phone this morning while on 3G only. I sent an email to another of my addresses and immediately got the response that the message couldn't be sent as the recipient was rejected and the message had been placed in my Outbox. I followed the above steps and immediately heard the satisfying "whoosh" as my mail was sent. 10 seconds later another satisying beep as my e mail arrived at my alternate account.
Hope this helps anyone else with a similar problem.

Urgent Help. How to send the email in HTML format in Version 4.6c

Hi,
Please help me how to send a mail in HTML format with logo and specified format. Is it possible to send the SAPscript or Smartform in HTML format to external mail address. The logo and the format is very important in this e-mail.
quick response will help me better.
Regards,
Naidu

Here is a sample program which emails HTML in the body. Of course you can put an HTML tag in there that would point to the logo on some server(internet). Notice we are just putting the HTML code in the MAILTXT table, This is how we do it at my company.
report zrich_0002.
data: maildata   like sodocchgi1.
data: mailtxt    like solisti1 occurs 10 with header line.
data: mailrec    like somlrec90 occurs 0 with header line.
start-of-selection.
clear:    maildata, mailtxt, mailrec.
refresh: mailtxt, mailrec.
perform build_text_message.
perform build_receivers.
perform send_mail_nodialog..
*      Form BUILD_TEXT_MESSAGE
form build_text_message.
maildata-obj_name = 'TEST'.
maildata-obj_descr = 'Test Subject'.
mailtxt = '<html>'.
append mailtxt.
mailtxt = '<head>'.
append mailtxt.
mailtxt = '<title>Untitled Document</title>'.
append mailtxt.
mailtxt = '<meta http-equiv="Content-Type" content="text/html;'.
append mailtxt.
mailtxt = 'charset=iso-8859-1">'.
append mailtxt.
mailtxt = '</head>'.
append mailtxt.
mailtxt = '<body>'.
append mailtxt.
mailtxt = '<div align="center"><em><font' .
append mailtxt.
mailtxt = 'color="#0000FF" size="+7" face="Arial,'.
append mailtxt.
mailtxt = 'Helvetica, sans-serif">THIS'.
append mailtxt.
mailtxt = ' IS A TEST </font></em><font' .
append mailtxt.
mailtxt = 'color="#0000FF" size="+7" face="Arial,'.
append mailtxt.
mailtxt = 'Helvetica, sans-serif"></font>'.
append mailtxt.
mailtxt = '</div>'.
append mailtxt.
mailtxt = '</body>'.
append mailtxt.
mailtxt = '</html>'.
append mailtxt.
endform.
*      Form BUILD_RECEIVERS
form build_receivers.
* mailrec-receiver = '[email protected]'.
mailrec-rec_type = 'U'.
append mailrec.
endform.
*      Form SEND_MAIL_NODIALOG
form send_mail_nodialog.
call function 'SO_NEW_DOCUMENT_SEND_API1'
       exporting
            document_data              = maildata
            document_type              = 'HTM'
            put_in_outbox              = 'X'
       tables
            object_header              = mailtxt
            object_content             = mailtxt
            receivers                  = mailrec
       exceptions
            too_many_receivers         = 1
            document_not_sent          = 2
            document_type_not_exist    = 3
            operation_no_authorization = 4
            parameter_error            = 5
            x_error                    = 6
            enqueue_error              = 7
            others                     = 8.
if sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
*         WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
endif.
endform.
Regards,
Rich Heilman

I use Microsoft XP on my PC, where r my pictures from my iPad? I need to know how to send pictures to Walgreens, etc so I can get them printed. Help please!

I use Microsoft XP on my PC, where r my pictures from my iPad? I need to know how to send pictures to Walgreens, etc so I can get them printed. Help please!

I am legally blonde and not very tech savvy, so I don't really know how to do that. I know ur time is valuable, so could u possibly give me a short tutorial? I would b very grateful! I use the camera kit to get my pics from my sd card to my iPad and also from my iPhone to my iPad. Had I known I would have this problem, I would not have transferred my pics to my iPad until after I took the sd card and had my pics printed.

Could you some one help me how to send a message on twitter using Oracle SOA?

Hi Team,
I am trying to send a message from Oracle SOA to Twitter, But i am not able to do the scenario.Could you some one help me how to send a message on twitter using Oracle SOA?
Regards,
Kiran

Very challenging and doubtful at the same time !
I don't think, its going to be a straight-forward one... Read about OAuth twitter authentication, before you try to post tweets.

HT5395 I have a mac , but i have no idea what version it is.. its all white and i just got it .. i have one problem , i have no idea how to send the text messages ? it keeps telling me i need to have some aol account .so somebody please help me understand

im just trying to find out how to send a message on the mac ...... someone please help ! thanks so much !

HI,
This is fairly generic (for iChat 4) although some links are out of date.
Start at the second menu down that says "Get a Screen Name"
http://www.ralphjohns.co.uk/versions/ichatvers4/howtos4.html
iChat 5 is virtually no different
iChat 6 adds the Yahoo option.
As has been said more specific info from yourself will enable a much more detailed reponse from us.
10:44 pm Wednesday; July 24, 2013
 iMac 2.5Ghz 5i 2011 (Mountain Lion 10.8.4)
 G4/1GhzDual MDD (Leopard 10.5.8)
 MacBookPro 2Gb (Snow Leopard 10.6.8)
 Mac OS X (10.6.8),
 Couple of iPhones and an iPad
"Limit the Logs to the Bits above Binary Images."  No, Seriously

HELP plz..How to send response from server to client

Hi..plz help me out of this problem..i am sending request from client side to servlet..lets say i am sendin "Bechkam"..now my servlet fetches this request.n finds out that BECHKAM is a football player..now i dont want to print this on the client side..i simply want to sent this response back to the client..after client receives this response the client should print bechkam is a football player..i have done coding of sending request from client(javascript code)to server but dont kno how to send response to client..do i have to use cookies or sessions..
Any help will be greatly appreciated
THANX

I'm not sure how well versed you're with HTTP and servlets.
What you term as 'printing on the client side' is in fact the response you're looking for. The response you send from a servlet is 'printed' into the response stream. The client receives this data and interprets is according to some headers. Usually, this data is HTML/ plain text which is interpreted by the browser and rendered as required. It could very well be displayed as is.
People on the forum help others voluntarily, it's not their job.
Help them help you.
Learn how to ask questions first: http://faq.javaranch.com/java/HowToAskQuestionsOnJavaRanch
(Yes I know it's on JavaRanch but I think it applies everywhere)
----------------------------------------------------------------

How to send pdf and mp3 on iPhone please help

I need to know how to send mp3 and pdf and other files threw imessage does any one have information on how to do this thanks

I found a way to send pdf if I email my self the pdf then I click on it gives option to send threw imessage so that ones solved just need to puzzle out how to send mp3 and other files threw imessage thanks for your help though you must be a newbie like me lol

HELP! How to send an ethernet_frame ?

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