How to send a text file over a LAN?

Hi:
I am working on a program (web app using a servlet), that produces a text file with Key / Value pairs ex) NAME
joe
CITY
los angeles
I want to send the text file over an intranet (LAN) to another pc and store it in the C:\temp directory of the receiving computer.
Is it best to use the Networking package? Any idea on tutorials or code samples to help assist me? (I posted on Servlet Technology forum; nobody answered though...thanks for any thoughts.

one way cud be that u write a program to open a port on the computer u want to store and make that program save on the required directory. then u can send a simple file in byte format over it. but doing this only wud b unsafe as others wud also hav the access. wat u cud do to prevent is to put some kind of password so that first u authenticate to server b4 u pass on the file.
bye
jods

Similar Messages

How to send a text file to a printer?

Hi, I'm in dark on how to send a text file to a printer through Java Stored Procedure.
Here are what I tried so far (OS: win 2000, Oracle: 817 or 9i2):
1, Enable DOS command in Java Stored Proc. and try to send PRINT command there:
public static String Run(String Command){
try{
Runtime.getRuntime().exec(Command);
System.out.println("Command: " + Command);
return("0");
catch (Exception e){
System.out.println("Error running command: " + Command +
"\n" + e.getMessage());
return(e.getMessage());
public static void main(String args[]){
if (args.length == 1)
Run("print /D:\\\\enterprise\\john " + args[0]);
else System.out.println("Usage: java OSCommand filename");
PL/SQL wrapper:
CREATE OR REPLACE FUNCTION OSCommand_Run(p1 IN VARCHAR2) RETURN VARCHAR2 AUTHID CURRENT_USER AS LANGUAGE JAVA NAME 'OSCommand.Run(java.lang.String) return java.lang.String';
SQL command:
//print /D:\\machine\printer test.txt
I loaded the Java Stored Procedure into SYSDBS account, it failed silently, even though piece of code works fine in external JVM.
2, Use filePrinter:
public static String print(String printString) {
try{
String printerUNC = "\\\\machine\\printer";
FileWriter fw = new FileWriter(printerUNC);
PrintWriter pw = new PrintWriter(fw);
pw.println(printString);
fw.close();
return "OK";
}catch(Exception e){
e.printStackTrace();
return "Exception: " + e.getMessage();
public static void main(String[] args) {
try{
String printerUNC = "\\\\machine\\printer";
String printString = "Hello World";
FileWriter fw = new FileWriter(printerUNC);
PrintWriter pw = new PrintWriter(fw);
pw.println(printString);
fw.close();
}catch(Exception e){e.printStackTrace();}
I loaded it into SYSDBS too, and tried with this:
SQL> select MY_PRINT.PRINT('HELLO from Oracle') from dual;
MY_PRINT.PRINT('HELLOFROMORACLE')
Exception: No such file or directory
SQL> show user
USER is "SYS"
It works in external JVM too.
What's wrong with this?
Thanks for any help in advance,
Charles

Avi:
Thanks for your response!
I put the java code in SYS, 'cause I assume that account has max privilege. If the test is successful, I will move that to some user schema and then to deal with those privilege settings... But I'm unlucky.
I checked Ask Tom, this is what I got from http://asktom.oracle.com/pls/ask/f?p=4950:8:1619723::NO::F4950_P8_DISPLAYID,F4950_P8_CRITERIA:38012348052,%7Bprinter%7D:
... Print file from PL/SQL ...
If you are using Oracle8i, release 8.1 -- much can be done with Java. java
would be able to print directly from the server.
Looks like using Java to print out file is better than PL/SQL. But there's no more hint there! And, no new question can be asked there today either...
I'm wondering whether we can create a socket to a printer and send the characters there directly... Anyone has experience on this?
Thanks for all the help in advance,
Charles

How to send a text file as jsp response

Hi
I want to send a text file/or other file as jsp response ..How to do it..
Pls tell me if any body knows about it..
thanks

Hmmm im no expert but i think you would have to convert it to a byte array and use OutputStream with the response ... not sure ...like i said, im no expert

Strange behaviour sending a text file over sockets

Hi !
Im not exactly new to Java. I discovered this behaviour when explaining to a junior.
I have a simple Server-Client architecture to send a text file. The server sends strings to client. The client checks for the string to become null, and never terminates !
Server.java
ServerSocket ss = new ServerSocket(25780);
Socket s = ss.accept();
PrintStream ps = new PrintStream(s.getOutputStream());
BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
BufferedReader fis = new BufferedReader(
               new InputStreamReader(
                    new FileInputStream(filename)));
while((read = fis.readLine()) != null){
     ps.println(read);
client.java
Socket s = new Socket(IP,port);
PrintStream ps = new PrintStream(s.getOutputStream());
BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
String read = new String();_
*while((read = br.readLine()) != null){*_
System.out.println(read);_
Can you tell me what mistake I'm making?

Thank you so much for the reply !
All blocks are within try-catch. I didn't post the whole code since you would find it inconvenient !
I tried flushing the stream ! Still doesnt work !
I guess it might help to post the entire source:
CLIENT.JAVA
    public static void main(String[] args) {
     try{
         System.out.println("Client");
         int port = 25780;
         String IP = new String("127.0.0.1");
         Socket s = new Socket(IP,port);
         PrintStream ps = new PrintStream(s.getOutputStream());
         BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
         String command = new String();
         String filename_to_recv = "from_ser.txt";
         command = "GET "+filename_to_recv;
         ps.println(command);
         String received = new String();
         String read;
         while((read = br.readLine()) != null){
          System.out.println(read);
         String filename_to_send = "from_cli.txt";
         System.out.println("recd data from server");
         command = "PUT "+filename_to_send;
         ps.println(command);
         BufferedReader filereader = new BufferedReader(
                             new InputStreamReader(
                              new FileInputStream(filename_to_send)));
         String to_send = new String();
         while((to_send = filereader.readLine()) != null){
          ps.println(to_send);
         try{
           Thread.sleep(2000);
         } catch(Exception e){
          System.out.println(""+e);
          e.printStackTrace();
     } catch(Exception e){
         System.out.println(""+e);
         e.printStackTrace();
SERVER.JAVA
   public static void main(String[] args) {
     try{
         System.out.println("Server");
         ServerSocket ss = new ServerSocket(25780);
         Socket s = ss.accept();
         PrintStream ps = new PrintStream(s.getOutputStream());
         BufferedReader br = new BufferedReader(new InputStreamReader(s.getInputStream()));
         String command = br.readLine();
         String filename = command.substring(command.indexOf(' ')+1);
         File f = new File(filename);
         BufferedReader fis = new BufferedReader(
                        new InputStreamReader(
                         new FileInputStream(filename)));
         String read;
         while((read = fis.readLine()) != null){
          ps.println(read);
         ps.flush();
         System.out.println("waiting for client data");
         command = br.readLine();
         while((read = br.readLine()) != null){
          System.out.println(read);
     } catch(Exception e){
         System.out.println(""+e);
         e.printStackTrace();
    }

How to send a text file attachment through mail in ECC 6.0

Hi Friends,
As per the requirement, I need to send a ALV report result as text file attachment to user in ECC 6.0 . I know how to do in 4.6C version. But the same code is not working here in ECC 6.0.
Generally to get the data in new row in the text file we use below code in 4.6c.
data: c_value type x value ' 0D '.
concatenate c_value itab-line into itab-line.
By using above code, we get each row of the itab in a new line in text file.
Same code is not working in ECC6.0 as it is not supporting to concatenate bytes with characters. Getting the error like " field c_value should be diclared as type C or I or N or T or P"
Even I have used function module NLS_STRING_CONVERT_TO_SYS to convert hexa to char. It is converting the value' 0D' to ' # '. But it is not working.
Could you please suggest me that how can get each row of itab as a new line in text file in ECC 6.0.
Itab value:
abcdefdfldjfñlkdsjfñldsjfdsñljñla
fdsljfñldskjfldsñkjfñldsjfñldsajñld
vcxusfcxusfcusafcxusafcusafcdsauc
Actual result currently coming in text file:
abcdefdfldjfñlkdsjfñldsjfdsñljñlafdsljfñldskjfldsñkjfñldsjfñldsajñldvcxusfcxusfcusafcxusafcusafcdsauc
Expected result in text file:
abcdefdfldjfñlkdsjfñldsjfdsñljñla
fdsljfñldskjfldsñkjfñldsjfñldsajñld
vcxusfcxusfcusafcxusafcusafcdsauc
Please do the needful.
Thanks
Kumar

hi,
Try this function Module
CALL FUNCTION 'SO_NEW_DOCUMENT_ATT_SEND_API1 '
*example code
******* Create Message Body Title and Description****************
i_objtxt = 'test with pdf-Attachment!'.
append i_objtxt.
describe table i_objtxt lines v_lines_txt.
read table i_objtxt index v_lines_txt.
wa_doc_chng-obj_name = 'smartform'.
wa_doc_chng-expiry_dat = sy-datum + 10.
wa_doc_chng-obj_descr = 'smartform'.
wa_doc_chng-sensitivty = 'F'.
wa_doc_chng-doc_size = v_lines_txt * 255.
**** Main Text*****************************
clear i_objpack-transf_bin.
i_objpack-head_start = 1.
i_objpack-head_num = 0.
i_objpack-body_start = 1.
i_objpack-body_num = v_lines_txt.
i_objpack-doc_type = 'RAW'.
append i_objpack.
**** Attachment (pdf-Attachment)*************
i_objpack-transf_bin = 'X'.
i_objpack-head_start = 1.
i_objpack-head_num = 1.
i_objpack-body_start = 1.
i_objpack-body_num = v_lines_bin.
i_objpack-doc_type = 'PDF'.
i_objpack-obj_name = 'smartform'.
concatenate i_objpack-obj_name i_objpack-doc_type into
i_objpack-obj_descr separated by '.'.
* I_OBJPACK-OBJ_DESCR = 'test'.
i_objpack-doc_size = v_lines_bin * 255 .
append i_objpack.
* Länge des Attachment ermitteln
clear i_reclist.
i_reclist-receiver = 'email address'.
i_reclist-rec_type = 'U'.
i_reclist-express = 'X'.
data: tab_lines like sy-tabix.
describe table i_objbin lines tab_lines.
append i_reclist.
call function 'SO_NEW_DOCUMENT_ATT_SEND_API1'
 exporting
 document_data = wa_doc_chng
 put_in_outbox = 'X'
 commit_work = 'X'
 tables
 packing_list = i_objpack
 object_header = wa_objhead
 contents_bin = i_objbin
 contents_txt = i_objtxt
 receivers = i_reclist
 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.
 write:/ 'Error When Sending the File', sy-subrc.
else.
 write:/ 'Mail sent'.
endif.

How to send a text file or a excel file as an attachment in workflow

Hi all,
I would like to send an e-mail containing an attachment in text or excel format in oracle workflow.Can anyone tell me or give me an example as how it can be done.
My e-mail id is [email protected]
Thanks in Advance.
Regards,
pavan

Hi,
I am embedding a CLOB message document attribute to my Notification
Message Body.
Everything works fine when I check my notifications in the "workflow worklist"
i.e. Oracle Apps. <Notifications> tab.
but the emails are not going to the users and below message is displayed in the
status monitor. (eventhough it displays below error - I can able to respond the notifications using the worklist and can able to COMPLETE the workflow process
successfully)
Please help me to resolve the below error, so that the Same notification which I am able to see using the workflow worklist should be sent to the user in email as embedded text.
NOTE: there is no problem with the Package XXDB_OKC_CONTRACTS_WF_PKG, as it is not changed and I even verified it before and after this error that this package is indeed in VALID status.
Workflow Errors: XXDBCAPR, SDA-10314
Failed Activity Send Approve_Reject Responce Notification
Activity Type Notice
Error Name WF_ERROR
Error Message [WF_ERROR] ERROR_MESSAGE=3835: Error '-20002 - ORA-20002: 2018: Unable to generate the notification XML. Caused by: 2020: Error when getting notification content. Caused by: ORA-04061: existing state of has been invalidated ORA-04061: existing state of package "APPS_FND.XXDB_OKC_CONTRACTS_WF_PKG" has been invalidated ORA-04065: not executed, altered or dropped package "APPS_FND.XXDB_OKC_CONTRACTS_WF_PKG" ORA-06508: PL/SQL: could not find program unit being called Wf_Notification.GetAttrClob(18841, MESSAGE_BODY, text/html) Wf_Notification.oldGetAttrC' encountered during execution of Generate function 'WF_XML.Generate' for event 'oracle.apps.wf.notification.send'. ERROR_STACK= WF_MAIL.GetLOBMessage3(18841, WFMAILER, 2020: Error when getting notification content. Caused by: ORA-04061: existing state of has been invalidated ORA-04061: existing state of package "APPS_FND.XXDB_OKC_CONTRACTS_WF_PKG" has been invalidated ORA-04065: not executed, altered or dropped package "APPS_FND.XXDB_OKC_CONTRACTS_WF_PKG" ORA-06508: PL/SQL: could not find program unit being called Wf_Notification.GetAttrClob(18841, MESSAGE_BODY, text/html) Wf_Notification.oldGetAttrClob(18841, MESSAGE_BODY, text/html) WF_NOTIFICATION.GetFullBody(nid => 18841, disptype => text/html) WF_MAIL.GetLOBMessage3(nid => 18841, r_ntf_pref => MAILHTML), Step -> Getting text/html body) WF_XML.GenerateDoc(oracle.apps.wf.notification.send, 18841) WF_XML.Generate(oracle.apps.wf.notification.send, 18841) WF_XML.Generate(oracle.apps.wf.notification.send, 18841) Wf_Event.setMessage(oracle.apps.wf.notification.send, 18841, WF_XML.Generate) Wf_Event.dispatch_internal()
Error Stack
thanks,
Shashi
NOTE: there is no problem with the Package XXDB_OKC_CONTRACTS_WF_PKG, as it is not changed and I even verified it before and after this error that this package is indeed in VALID status.

How to send a text file to printer in Java 1.3.1

Please don't sujest 1.4. My users run it on 1.3

I don't guarantee that this works in 1.3 - I really just don't know.
But what I did the last time I had to print text was
instantiate a JEditorPane.
editorPane.setText(text);
instantiate a DocumentRenderer
renderer.print(editorPane);

How to zip a text file and send as email attachment in SAP version 4.6c?

Hi Guru,
How to zip a text file in SAP version 4.6c which doesn't have class CL_ABAP_ZIP?
Please help.
Thanks & Regards,
Ari

Hi,
Try this link
[http://sap.ittoolbox.com/groups/technical-functional/sap-dev/sapr3dev-zip-file-from-sap-1707099?cv=expanded]
Cheers,
Surinder

Sending EMail "Text-File" from Application Server!

Hi Experts,
how can I sending a Text-File from Application Server via Email?
Is there existing a Function Modul?
With Kind regards
Ersin
Moderator message: sending emails = FAQ, please search before posting.
Edited by: Thomas Zloch on Nov 25, 2010 4:23 PM

STF (Search the forum)! This type of question has been asked...and answered....many times.

Sending a text file

hi
please can any one tell me if I want to send a text file residing on my mobile to another mobile using SMS how is it possible
I already hv a j2me application tht can send a text message.
I want a program tht will send this whole .txt file and the other end receives it as a text file
thanx
forumm

hi
can I split a text file and reassemble it using j2me
or I send the text in the file using the usual sms
and if I need to split the text file please can u give me some reference where I can find information about how to do that
thanx a ton
Forum

Sending a text file Client/Server problem

Hi,
I have two java classes (A.java and B.java). i would like to send the text file (something.txt) from A to B. Can somebody please show me how to do so? I know it is incomplete, but i really need help since im new to this. I dont know how to send and how to accept the file. Here is what i have so far:
import java.net.*;
import java.io.*;
import java.lang.*;
public class A {
        private static String hostname;                  //host name
        private static final int portA = 1111;           //source port number
        private static int portB;                        //destination port number
        private static ServerSocket s;
        private static Socket socket;
        private static BufferedReader br;
        String fileName = "something.txt";
        public A () {
        public static void send() {
                System.out.println("Send method");
                try {
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                 hostname = br.readLine();
                 System.out.print("> Enter Port Number: ");
                    portB = Integer.valueOf(br.readLine()).intValue();
            catch(IOException e){}
        public static void main(String args[]) throws IOException {
import java.net.*;
import java.io.*;
import java.lang.*;
public class B {
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        private static final int portB = 2222;           //source port number
        private static ServerSocket s;
        private static Socket socket;
        private static BufferedReader br;
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}I really appriciate any code to help me out. Thanks

Check out the link shown below:
http://forum.java.sun.com/thread.jsp?forum=33&thread=66616
If that doesn't answer your question, search this site for Upload
;o)
V.V.

How to attach a text file as an attachment to email message?

Hello Everybody,
I have a .csv file, in which details about emp-id, emp-name, e-expenses for Reimbursement and email address are stored.
My application reads this .csv file, and sends a mail to each employee with his id, salary details in text format. (by changing content type to "text/plain") The code is working fine. But,
My problem is:
The message is sent as message body to the end user.
The end user / the person who receives this mail will not be a technical person. So,
1) If he trys to take a print out of this e-mail, He get only half of it.(as no. of colums will be more than paper size).
2) I am finding alignment problem. IF employee name is too big, other columns will shift to right and data will not be exactly under column header. (it is going in zig zag way)
So, I thought sending text file with all the details as an attachment might do well.
But, I don't know how to attach a text file to email-message body.
code
try
 { String s1="";
 File f1 = new File(the path);
 FileInputStream fstream = new FileInputStream(f1); //new
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 StringTokenizer st = new StringTokenizer(s1,",");
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 String f=st.nextToken();
 String g=st.nextToken();
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 String o=st.nextToken();
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<%
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 message=message.concat(" ");
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 msg.setSubject(subject);
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Any help will be appreciated.
Thanks and regards.
Ashvini

<html>

MimeBodyPart mbp1 = new MimeBodyPart();
mbp1.setText("Your Messages");
MimeBodyPart mbp2 = new MimeBodyPart();
FileDataSource fds = new FileDataSource("Your Attachments");
mbp2.setDataHandler(new DataHandler(fds));
mbp2.setFileName(fds.getName());
Multipart mp = new MimeMultipart();
mp.addBodyPart(mbp1);
mp.addBodyPart(mbp2);
msg.setContent(mp);
msg.saveChanges();
msg.writeTo(System.out);
msg.setSubject(subject);
Transport.send(msg);

See you can add above code in your program and see the magic
Bye
regards--
Ashish
</html>

Need to send the text file using webservice

Hi,
I want to send the text file with contains data through oracle pl/sql using webservice. How can i handle this program?
Kindly share with your details.
Thanks in advance,
Maran

user8732035 wrote:
I want to send the text file with contains data through oracle pl/sql using webservice. How can i handle this program?Web services supply XML structured data. Not text files.
PL/SQL supports web services (XML output) and web procedures (text and binary output).
You need to clarify your requirements.

How to sending simple text in the mail body

Hi friends,
             How to send simple text in the mail body through ABAP code
   plz send me the related code and setting for that mail.
Thanks&Regards,
Srinivas

try this...
FORM send_file_as_email_attachment .
DATA: objtxt LIKE solisti1 OCCURS 10 WITH HEADER LINE.
DATA: objpack LIKE sopcklsti1 OCCURS 2 WITH HEADER LINE.
DATA: objhead LIKE solisti1 OCCURS 1 WITH HEADER LINE.
DATA: reclist LIKE somlreci1 OCCURS 5 WITH HEADER LINE.
DATA: objbin LIKE solisti1 OCCURS 10 WITH HEADER LINE.
DATA : i_body TYPE soli_tab WITH HEADER LINE.
DATA: it_attach LIKE it_display1 OCCURS 0 WITH HEADER LINE.
DATA: doc_chng LIKE sodocchgi1.
DATA: tab_lines LIKE sy-tabix.
DATA: att_lines TYPE i.
DATA: lv_lines TYPE i.
DATA: file TYPE string.
data: g_datum like sy-datum.
data: g_datum1(10) type c.
DATA: len TYPE n.
LOOP AT it_email.
    CLEAR : objpack,
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            objbin,
            objtxt,
            reclist.
    REFRESH: objpack,
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             objbin,
             objtxt,
             reclist.
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doc_chng-obj_descr = 'Aged Stock more than 45 Days'.
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    APPEND objtxt.
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    objtxt-line =
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    READ TABLE objtxt INDEX tab_lines.
    doc_chng-doc_size = ( tab_lines - 1 ) * 255 + STRLEN( objtxt ).
   CLEAR objpack-transf_bin.
    objpack-head_start = 1.
    objpack-head_num = 1.
    objpack-body_start = 1.
    objpack-body_num = tab_lines.
    objpack-doc_type = 'TXT'.
   objpack-obj_name = 'Run_prog'.
   objpack-obj_descr = 'Agestock.txt'.
   lv_lines = tab_lines.
    APPEND objpack.
*CONCATENATE 'Plant'   'Material Number' 'Qty(More than 45days)'
*'Amount' INTO
       it_display SEPARATED BY space.
       append objbin.
       clear: objbin.
    CLEAR:it_display2.
    REFRESH it_display2.
    it_display2-werks = 'Plant|'.
    it_display2-matnr = 'Material Number'.
    it_display2-qty = '|Qty > 45 days'.
    it_display2-amount = '      |Amount'.
    APPEND it_display2.
    it_display2-werks = ''.
    it_display2-matnr = ''.
    it_display2-qty = ''.
    it_display2-amount = ''.
    APPEND it_display2.
    CLEAR : it_display2.
    sort it_display1 by amount descending.
    LOOP AT it_display1 WHERE werks = it_email-vkbur.
     AT FIRST.
*CONCATENATE 'Plant    '   'Material Number' 'Qty(More than 45days)'
*'Amount' INTO
       objbin-line SEPARATED BY space.
       append objbin.
       clear: objbin.
     ENDAT.
      CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
        EXPORTING
          input = it_display1-matnr
        IMPORTING
          output = it_display1-matnr.
      it_display1-qty = TRUNC( it_display1-qty ).
      MOVE-CORRESPONDING it_display1 TO it_display2.
      APPEND it_display2.
      CLEAR:it_display1,it_display2,objbin.
      CLEAR:it_display1.
    ENDLOOP.
    objbin[] = it_display2[].
    DESCRIBE TABLE objbin LINES tab_lines.
    objhead = 'Suug'.
    APPEND objhead.
    objpack-transf_bin = 'X'.
    objpack-head_start = 3.
    objpack-head_num = 1.
    objpack-body_start = 1.
    objpack-body_num = tab_lines.
    objpack-doc_type = 'RAW'.
    objpack-obj_name = 'Run_prog'.
    objpack-obj_descr = 'Agestock.txt'.
    APPEND objpack.
    reclist-receiver = '[email protected]'.
    reclist-rec_type = 'U'.
    APPEND reclist.
=====================================================================
    CALL FUNCTION 'SO_DOCUMENT_SEND_API1'
      EXPORTING
        document_data              = doc_chng
        commit_work                = 'X'
      TABLES
        packing_list               = objpack
        object_header              = objhead
        contents_bin               = objbin
        contents_txt               = objtxt
        receivers                  = reclist
      EXCEPTIONS
        too_many_receivers         = 1
        document_not_sent          = 2
        operation_no_authorization = 4
        OTHERS                     = 99.
    CLEAR : it_email.
ENDLOOP.
ENDFORM.                    "send_mail
Message was edited by:
        Sugumar Ganesan

Detect "end of file" while send n numbers files over a socket?

Hi!
I�m trying to find a way to detect "end of file" while send n numbers files over a socket.
What i'm looking for is how to detect on the client side when the file i�m sending is downloaded.
Here is the example i�m working on.
Client side.
import java.io.*;
import java.net.*;
public class fileTransfer {
 private InputStream fromServer;
 public fileTransfer(String fileName) throws FileNotFoundException, IOException {
 Socket socket = new Socket("localhost", 2006);
 fromServer = socket.getInputStream();
 for(int i=0; i<10; i++)
 receive(new File(i+fileName));
 private void receive(File uploadedFile) throws FileNotFoundException, IOException {
 uploadedFile.createNewFile();
 FileOutputStream toFile = new FileOutputStream(uploadedFile);
 byte[] buffer = new byte[4096];
 int bytesRead = 0;
 while ((bytesRead = fromServer.read(buffer)) != -1) {
 toFile.write(buffer, 0, bytesRead);
 public static void main(String[] args) {
 try {
 new fileTransfer("testa.jpg");
 } catch (Exception ex) {ex.printStackTrace();}
}Server side.
import java.io.*;
import java.net.*;
public class fileTransferSend {
 Socket serv = null;
 OutputStream toClient;
 public fileTransferSend(String fileName) throws FileNotFoundException, IOException {
 StartServer();
 for(int i =0; i<10; i++)
 send(new File(fileName));
 public void StartServer() throws IOException {
 ServerSocket ssocket = new ServerSocket(2006);
 System.out.println("Waiting for incomming");
 serv = ssocket.accept();
 System.out.println("incomming");
 toClient = serv.getOutputStream();
 private void send(File f) throws FileNotFoundException, IOException {
 if(f.exists() && f.canRead()) {
 FileInputStream fromFile = new FileInputStream(f);
 try {
 byte[] buffer = new byte[4096]; // 4K
 int bytesRead = 0;
 System.out.println("sending: "+f.getName());
 while ((bytesRead = fromFile.read(buffer)) != -1) {
 toClient.flush();
 toClient.write(buffer, 0, bytesRead);
 finally {
 //toClient.close();
 fromFile.close();
 } else {
 System.out.println("no files");
 public static void main(String[] args) {
 try {
 new fileTransferSend("test.jpg");
 }catch(Exception e) {e.printStackTrace();}
I know that the client never reads -1 becuase i doesn�t close the stream.
Is there anyway to tell the client that the file is downloaded?

A common (and easy) TCP/IP protocol is to send length, followed by data.
Because TCP/IP is a stream-oriented protocol, a receiver can never absolutely determine where the first packet ends and the second packet begins. So it is common to send the length of the packet, followed by the packet itself.
In your case, you could send length of file, followed by file data. It should be fairly easy to obtain file length and send that as a 32-bit (or 64-bit value). Here is an idea (not code) for the receiver:
receive (4) // where 4 = number bytes to receive
unsigned length = convert 4 bytes to unsigned integer
while (length != 0)
n = receive ( length ) // where n = number bytes actually received, and length = number bytes desired
Or, you can use the concept of an "Escape" character in the stream. Arbitrarily choose an ESCAPE character of 0x1B (although it could be any 8-bit value). When the receiver detects an ESCAPE char, the next character can be either control or data. So for end of file you might send 0x1B 0x00. If the byte to be sent is 0x1B, then send 0x1B 0x1B. The receiver would look something like this:
b = read one byte from stream
if (b == 0x1B)
b = read one byte from stream
if (b == 0x00) then end of file
else place b in buffer
else
place b in buffer
Later.

How to send a text file over a LAN?

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