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Oracle 中PLSQL的ftp应用
CREATE OR REPLACE PACKAGE BODY ftp AS
-- --------------------------------------------------------------------------
-- Name : http://www.oracle-base.com/dba/miscellaneous/ftp.pkb
-- Author : Tim Hall
-- Description : Basic FTP API. For usage notes see:
-- http://www.oracle-base.com/articles/misc/ftp-from-plsql.php
-- Requirements : http://www.oracle-base.com/dba/miscellaneous/ftp.pks
-- License : Free for personal and commercial use.
-- You can amend the code, but leave existing the headers, current
-- amendments history and links intact.
-- Copyright and disclaimer available here:
-- http://www.oracle-base.com/misc/site-info.php#copyright
-- Ammedments :
-- When Who What
-- =========== ======== =================================================
-- 14-AUG-2003 Tim Hall Initial Creation
-- 10-MAR-2004 Tim Hall Add convert_crlf procedure.
-- Incorporate CRLF conversion functionality into
-- put_local_ascii_data and put_remote_ascii_data
-- functions.
-- Make get_passive function visible.
-- Added get_direct and put_direct procedures.
-- 23-DEC-2004 Tim Hall The get_reply procedure was altered to deal with
-- banners starting with 4 white spaces. This fix is
-- a small variation on the resolution provided by
-- Gary Mason who spotted the bug.
-- 10-NOV-2005 Tim Hall Addition of get_reply after doing a transfer to
-- pickup the 226 Transfer complete message. This
-- allows gets and puts with a single connection.
-- Issue spotted by Trevor Woolnough.
-- 03-OCT-2006 Tim Hall Add list, rename, delete, mkdir, rmdir procedures.
-- 12-JAN-2007 Tim Hall A final call to get_reply was added to the get_remote%
-- procedures to allow multiple transfers per connection.
-- 15-Jan-2008 Tim Hall login: Include timeout parameter (suggested by Dmitry Bogomolov).
-- 21-Jan-2008 Tim Hall put_%: "l_pos < l_clob_len" to "l_pos <= l_clob_len" to prevent
-- potential loss of one character for single-byte files or files
-- sized 1 byte bigger than a number divisible by the buffer size
-- (spotted by Michael Surikov).
-- 23-Jan-2008 Tim Hall send_command: Possible solution for ORA-29260 errors included,
-- but commented out (suggested by Kevin Phillips).
-- 12-Feb-2008 Tim Hall put_local_binary_data and put_direct: Open file with "wb" for
-- binary writes (spotted by Dwayne Hoban).
-- 03-Mar-2008 Tim Hall list: get_reply call and close of passive connection added
-- (suggested by Julian, Bavaria).
-- 12-Jun-2008 Tim Hall A final call to get_reply was added to the put_remote%
-- procedures, but commented out. If uncommented, it may cause the
-- operation to hang, but it has been reported (morgul) to allow
-- multiple transfers per connection.
-- get_reply: Moved to pakage specification.
-- 24-Jun-2008 Tim Hall get_remote% and put_remote%: Exception handler added to close the passive
-- connection and reraise the error (suggested by Mark Reichman).
-- 22-Apr-2009 Tim Hall get_remote_ascii_data: Remove unnecessary logout (suggested by John Duncan).
-- get_reply and list: Handle 400 messages as well as 500 messages (suggested by John Duncan).
-- logout: Added a call to UTL_TCP.close_connection, so not necessary to close
-- any connections manually (suggested by Victor Munoz).
-- get_local_*_data: Check for zero length files to prevent exception (suggested by Daniel)
-- nlst: Added to return list of file names only (suggested by Julian and John Duncan)
-- 05-Apr-2011 Tim Hall put_remote_ascii_data: Added comment on definition of l_amount. Switch to 10000 if you get
-- ORA-06502 from this line. May give you unexpected result due to conversion. Better to use binary.
-- 05-Oct-2013 Tim Hall list, nlst: Fixed bug where files beginning with '4' or '5' could cause error.
-- 24-May-2014 Tim Hall Added license information.
-- --------------------------------------------------------------------------
g_reply t_string_table := t_string_table();
g_binary BOOLEAN := TRUE;
g_debug BOOLEAN := TRUE;
g_convert_crlf BOOLEAN := TRUE;
PROCEDURE debug (p_text IN VARCHAR2);
-- --------------------------------------------------------------------------
FUNCTION login (p_host IN VARCHAR2,
p_port IN VARCHAR2,
p_user IN VARCHAR2,
p_pass IN VARCHAR2,
p_timeout IN NUMBER := NULL)
RETURN UTL_TCP.connection IS
-- --------------------------------------------------------------------------
l_conn UTL_TCP.connection;
BEGIN
g_reply.delete;
l_conn := UTL_TCP.open_connection(p_host, p_port, tx_timeout => p_timeout);
get_reply (l_conn);
send_command(l_conn, 'USER ' || p_user);
send_command(l_conn, 'PASS ' || p_pass);
RETURN l_conn;
END;
-- --------------------------------------------------------------------------
-- --------------------------------------------------------------------------
FUNCTION get_passive (p_conn IN OUT NOCOPY UTL_TCP.connection)
RETURN UTL_TCP.connection IS
-- --------------------------------------------------------------------------
l_conn UTL_TCP.connection;
l_reply VARCHAR2(32767);
l_host VARCHAR(100);
l_port1 NUMBER(10);
l_port2 NUMBER(10);
BEGIN
send_command(p_conn, 'PASV');
l_reply := g_reply(g_reply.last);
l_reply := REPLACE(SUBSTR(l_reply, INSTR(l_reply, '(') + 1, (INSTR(l_reply, ')')) - (INSTR(l_reply, '('))-1), ',', '.');
l_host := SUBSTR(l_reply, 1, INSTR(l_reply, '.', 1, 4)-1);
l_port1 := TO_NUMBER(SUBSTR(l_reply, INSTR(l_reply, '.', 1, 4)+1, (INSTR(l_reply, '.', 1, 5)-1) - (INSTR(l_reply, '.', 1, 4))));
l_port2 := TO_NUMBER(SUBSTR(l_reply, INSTR(l_reply, '.', 1, 5)+1));
l_conn := utl_tcp.open_connection(l_host, 256 * l_port1 + l_port2);
return l_conn;
END;
-- --------------------------------------------------------------------------
-- --------------------------------------------------------------------------
PROCEDURE logout(p_conn IN OUT NOCOPY UTL_TCP.connection,
p_reply IN BOOLEAN := TRUE) AS
-- --------------------------------------------------------------------------
BEGIN
send_command(p_conn, 'QUIT', p_reply);
UTL_TCP.close_connection(p_conn);
END;
-- --------------------------------------------------------------------------
-- --------------------------------------------------------------------------
PROCEDURE send_command (p_conn IN OUT NOCOPY UTL_TCP.connection,
p_command IN VARCHAR2,
p_reply IN BOOLEAN := TRUE) IS
-- --------------------------------------------------------------------------
l_result PLS_INTEGER;
BEGIN
l_result := UTL_TCP.write_line(p_conn, p_command);
-- If you get ORA-29260 after the PASV call, replace the above line with the following line.
-- l_result := UTL_TCP.write_text(p_conn, p_command || utl_tcp.crlf, length(p_command || utl_tcp.crlf));
IF p_reply THEN
get_reply(p_conn);
END IF;
END;
-- --------------------------------------------------------------------------
-- --------------------------------------------------------------------------
PROCEDURE get_reply (p_conn IN OUT NOCOPY UTL_TCP.connection) IS
-- --------------------------------------------------------------------------
l_reply_code VARCHAR2(3) := NULL;
BEGIN
LOOP
g_reply.extend;
g_reply(g_reply.last) := UTL_TCP.get_line(p_conn, TRUE);
debug(g_reply(g_reply.last));
IF l_reply_code IS NULL THEN
l_reply_code := SUBSTR(g_reply(g_reply.last), 1, 3);
END IF;
IF SUBSTR(l_reply_code, 1, 1) IN ('4', '5') THEN
RAISE_APPLICATION_ERROR(-20000, g_reply(g_reply.last));
ELSIF (SUBSTR(g_reply(g_reply.last), 1, 3) = l_reply_code AND
SUBSTR(g_reply(g_reply.last), 4, 1) = ' ') THEN
EXIT;
END IF;
END LOOP;
EXCEPTION
WHEN UTL_TCP.END_OF_INPUT THEN
NULL;
END;
-- --------------------------------------------------------------------------
-- --------------------------------------------------------------------------
FUNCTION get_local_ascii_data (p_dir IN VARCHAR2,
p_file IN VARCHAR2)
RETURN CLOB IS
-- --------------------------------------------------------------------------
l_bfile BFILE;
l_data CLOB;
BEGIN
DBMS_LOB.createtemporary (lob_loc => l_data,
cache => TRUE,
dur => DBMS_LOB.call);
l_bfile := BFILENAME(p_dir, p_file);
DBMS_LOB.fileopen(l_bfile, DBMS_LOB.file_readonly);
IF DBMS_LOB.getlength(l_bfile) > 0 THEN
DBMS_LOB.loadfromfile(l_data, l_bfile, DBMS_LOB.getlength(l_bfile));
END IF;
DBMS_LOB.fileclose(l_bfile);
RETURN l_data;
END;
-- --------------------------------------------------------------------------
-- --------------------------------------------------------------------------
FUNCTION get_local_binary_data (p_dir IN VARCHAR2,
p_file IN VARCHAR2)
RETURN BLOB IS
-- --------------------------------------------------------------------------
l_bfile BFILE;
l_data BLOB;
BEGIN
DBMS_LOB.createtemporary (lob_loc => l_data,
cache => TRUE,
dur => DBMS_LOB.call);
l_bfile := BFILENAME(p_dir, p_file);
DBMS_LOB.fileopen(l_bfile, DBMS_LOB.file_readonly);
IF DBMS_LOB.getlength(l_bfile) > 0 THEN
DBMS_LOB.loadfromfile(l_data, l_bfile, DBMS_LOB.getlength(l_bfile));
END IF;
DBMS_LOB.fileclose(l_bfile);
RETURN l_data;
END;
-- --------------------------------------------------------------------------
-- --------------------------------------------------------------------------
FUNCTION get_remote_ascii_data (p_conn IN OUT NOCOPY UTL_TCP.connection,
p_file IN VARCHAR2)
RETURN CLOB IS
-- --------------------------------------------------------------------------
l_conn UTL_TCP.connection;
l_amount PLS_INTEGER;
l_buffer VARCHAR2(32767);
l_data CLOB;
BEGIN
DBMS_LOB.createtemporary (lob_loc => l_data,
cache => TRUE,
dur => DBMS_LOB.call);
l_conn := get_passive(p_conn);
send_command(p_conn, 'RETR ' || p_file, TRUE);
--logout(l_conn, FALSE);
BEGIN
LOOP
l_amount := UTL_TCP.read_text (l_conn, l_buffer, 32767);
DBMS_LOB.writeappend(l_data, l_amount, l_buffer);
END LOOP;
EXCEPTION
WHEN UTL_TCP.END_OF_INPUT THEN
NULL;
WHEN OTHERS THEN
NULL;
END;
UTL_TCP.close_connection(l_conn);
get_reply(p_conn);
RETURN l_data;
EXCEPTION
WHEN OTHERS THEN
UTL_TCP.close_connection(l_conn);
RAISE;
END;
-- --------------------------------------------------------------------------
-- --------------------------------------------------------------------------
FUNCTION get_remote_binary_data (p_conn IN OUT NOCOPY UTL_TCP.connection,
p_file IN VARCHAR2)
RETURN BLOB IS
-- --------------------------------------------------------------------------
l_conn UTL_TCP.connection;
l_amount PLS_INTEGER;
l_buffer RAW(32767);
l_data BLOB;
BEGIN
DBMS_LOB.createtemporary (lob_loc => l_data,
cache => TRUE,
dur => DBMS_LOB.call);
l_conn := get_passive(p_conn);
send_command(p_conn, 'RETR ' || p_file, TRUE);
BEGIN
LOOP
l_amount := UTL_TCP.read_raw (l_conn, l_buffer, 32767);
DBMS_LOB.writeappend(l_data, l_amount, l_buffer);
END LOOP;
EXCEPTION
WHEN UTL_TCP.END_OF_INPUT THEN
NULL;
WHEN OTHERS THEN
NULL;
END;
UTL_TCP.close_connection(l_conn);
get_reply(p_conn);
RETURN l_data;
EXCEPTION
WHEN OTHERS THEN
UTL_TCP.close_connection(l_conn);
RAISE;
END;
-- --------------------------------------------------------------------------
-- --------------------------------------------------------------------------
PROCEDURE put_local_ascii_data (p_data IN CLOB,
p_dir IN VARCHAR2,
p_file IN VARCHAR2) IS
-- --------------------------------------------------------------------------
l_out_file UTL_FILE.file_type;
l_buffer VARCHAR2(32767);
l_amount BINARY_INTEGER := 32767;
l_pos INTEGER := 1;
l_clob_len INTEGER;
BEGIN
l_clob_len := DBMS_LOB.getlength(p_data);
l_out_file := UTL_FILE.fopen(p_dir, p_file, 'w', 32767);
WHILE l_pos <= l_clob_len LOOP
DBMS_LOB.read (p_data, l_amount, l_pos, l_buffer);
IF g_convert_crlf THEN
l_buffer := REPLACE(l_buffer, CHR(13), NULL);
END IF;
UTL_FILE.put(l_out_file, l_buffer);
UTL_FILE.fflush(l_out_file);
l_pos := l_pos + l_amount;
END LOOP;
UTL_FILE.fclose(l_out_file);
EXCEPTION
WHEN OTHERS THEN
IF UTL_FILE.is_open(l_out_file) THEN
UTL_FILE.fclose(l_out_file);
END IF;
RAISE;
END;
-- --------------------------------------------------------------------------
-- --------------------------------------------------------------------------
PROCEDURE put_local_binary_data (p_data IN BLOB,
p_dir IN VARCHAR2,
p_file IN VARCHAR2) IS
-- --------------------------------------------------------------------------
l_out_file UTL_FILE.file_type;
l_buffer RAW(32767);
l_amount BINARY_INTEGER := 32767;
l_pos INTEGER := 1;
l_blob_len INTEGER;
BEGIN
l_blob_len := DBMS_LOB.getlength(p_data);
l_out_file := UTL_FILE.fopen(p_dir, p_file, 'wb', 32767);
WHILE l_pos <= l_blob_len LOOP
DBMS_LOB.read (p_data, l_amount, l_pos, l_buffer);
UTL_FILE.put_raw(l_out_file, l_buffer, TRUE);
UTL_FILE.fflush(l_out_file);
l_pos := l_pos + l_amount;
END LOOP;
UTL_FILE.fclose(l_out_file);
EXCEPTION
WHEN OTHERS THEN
IF UTL_FILE.is_open(l_out_file) THEN
UTL_FILE.fclose(l_out_file);
END IF;
RAISE;
END;
-- --------------------------------------------------------------------------
-- --------------------------------------------------------------------------
PROCEDURE put_remote_ascii_data (p_conn IN OUT NOCOPY UTL_TCP.connection,
p_file IN VARCHAR2,
p_data IN CLOB) IS
-- --------------------------------------------------------------------------
l_conn UTL_TCP.connection;
l_result PLS_INTEGER;
l_buffer VARCHAR2(32767);
l_amount BINARY_INTEGER := 32767; -- Switch to 10000 (or use binary) if you get ORA-06502 from this line.
l_pos INTEGER := 1;
l_clob_len INTEGER;
BEGIN
l_conn := get_passive(p_conn);
send_command(p_conn, 'STOR ' || p_file, TRUE);
l_clob_len := DBMS_LOB.getlength(p_data);
WHILE l_pos <= l_clob_len LOOP
DBMS_LOB.READ (p_data, l_amount, l_pos, l_buffer);
IF g_convert_crlf THEN
l_buffer := REPLACE(l_buffer, CHR(13), NULL);
END IF;
l_result := UTL_TCP.write_text(l_conn, l_buffer, LENGTH(l_buffer));
UTL_TCP.flush(l_conn);
l_pos := l_pos + l_amount;
END LOOP;
UTL_TCP.close_connection(l_conn);
-- The following line allows some people to make multiple calls from one connection.
-- It causes the operation to hang for me, hence it is commented out by default.
-- get_reply(p_conn);
EXCEPTION
WHEN OTHERS THEN
UTL_TCP.close_connection(l_conn);
RAISE;
END;
-- --------------------------------------------------------------------------
-- --------------------------------------------------------------------------
PROCEDURE put_remote_binary_data (p_conn IN OUT NOCOPY UTL_TCP.connection,
p_file IN VARCHAR2,
p_data IN BLOB) IS
-- --------------------------------------------------------------------------
l_conn UTL_TCP.connection;
l_result PLS_INTEGER;
l_buffer RAW(32767);
l_amount BINARY_INTEGER := 32767;
l_pos INTEGER := 1;
l_blob_len INTEGER;
BEGIN
l_conn := get_passive(p_conn);
send_command(p_conn, 'STOR ' || p_file, TRUE);
l_blob_len := DBMS_LOB.getlength(p_data);
WHILE l_pos <= l_blob_len LOOP
DBMS_LOB.READ (p_data, l_amount, l_pos, l_buffer);
l_result := UTL_TCP.write_raw(l_conn, l_buffer, l_amount);
UTL_TCP.flush(l_conn);
l_pos := l_pos + l_amount;
END LOOP;
UTL_TCP.close_connection(l_conn);
-- The following line allows some people to make multiple calls from one connection.
-- It causes the operation to hang for me, hence it is commented out by default.
-- get_reply(p_conn);
EXCEPTION
WHEN OTHERS THEN
UTL_TCP.close_connection(l_conn);
RAISE;
END;
-- --------------------------------------------------------------------------
-- --------------------------------------------------------------------------
PROCEDURE get (p_conn IN OUT NOCOPY UTL_TCP.connection,
p_from_file IN VARCHAR2,
p_to_dir IN VARCHAR2,
p_to_file IN VARCHAR2) AS
-- --------------------------------------------------------------------------
BEGIN
IF g_binary THEN
put_local_binary_data(p_data =http://www.mamicode.com/> get_remote_binary_data (p_conn, p_from_file),>
一个简单的例子测试（参考网络学习）CREATE OR REPLACE DIRECTORY my_docs AS '/u01/app/oracle/';
SET SERVEROUTPUT ON SIZE 1000000
@c:/ftp.pks
@c:/ftp.pkb
-- Retrieve an ASCII file from a remote FTP server.
DECLARE
l_conn UTL_TCP.connection;
BEGIN
l_conn := ftp.login('ftp.company.com', '21', 'ftpuser', 'ftppassword');
ftp.ascii(p_conn => l_conn);
ftp.get(p_conn => l_conn,
p_from_file => '/u01/app/oracle/test.txt',
p_to_dir => 'MY_DOCS',
p_to_file => 'test_get.txt');
ftp.logout(l_conn);
utl_tcp.close_all_connections;
END;
/
-- Send an ASCII file to a remote FTP server.
DECLARE
l_conn UTL_TCP.connection;
BEGIN
l_conn := ftp.login('ftp.company.com', '21', 'ftpuser', 'ftppassword');
ftp.ascii(p_conn => l_conn);
ftp.put(p_conn => l_conn,
p_from_dir => 'MY_DOCS',
p_from_file => 'test_get.txt',
p_to_file => '/u01/app/oracle/test_put.txt');
ftp.logout(l_conn);
utl_tcp.close_all_connections;
END;
/
-- Retrieve a binary file from a remote FTP server.
DECLARE
l_conn UTL_TCP.connection;
BEGIN
l_conn := ftp.login('ftp.company.com', '21', 'ftpuser', 'ftppassword');
ftp.binary(p_conn => l_conn);
ftp.get(p_conn => l_conn,
p_from_file => '/u01/app/oracle/product/9.2.0.1.0/sysman/reporting/gif/jobs.gif',
p_to_dir => 'MY_DOCS',
p_to_file => 'jobs_get.gif');
ftp.logout(l_conn);
utl_tcp.close_all_connections;
END;
/
-- Send a binary file to a remote FTP server.
DECLARE
l_conn UTL_TCP.connection;
BEGIN
l_conn := ftp.login('ftp.company.com', '21', 'ftpuser', 'ftppassword');
ftp.binary(p_conn => l_conn);
ftp.put(p_conn => l_conn,
p_from_dir => 'MY_DOCS',
p_from_file => 'jobs_get.gif',
p_to_file => '/u01/app/oracle/jobs_put.gif');
ftp.logout(l_conn);
utl_tcp.close_all_connections;
END;
/
-- Get a directory listing from a remote FTP server.
DECLARE
l_conn UTL_TCP.connection;
l_list ftp.t_string_table;
BEGIN
l_conn := ftp.login('ftp.company.com', '21', 'ftpuser', 'ftppassword');
ftp.list(p_conn => l_conn,
p_dir => '/u01/app/oracle',
p_list => l_list);
ftp.logout(l_conn);
utl_tcp.close_all_connections;
IF l_list.COUNT > 0 THEN
FOR i IN l_list.first .. l_list.last LOOP
DBMS_OUTPUT.put_line(i || ': ' || l_list(i));
END LOOP;
END IF;
END;
/
-- Rename a file on a remote FTP server.
DECLARE
l_conn UTL_TCP.connection;
BEGIN
l_conn := ftp.login('ftp.company.com', '21', 'ftpuser', 'ftppassword');
ftp.rename(p_conn => l_conn,
p_from => '/u01/app/oracle/dba/shutdown',
p_to => '/u01/app/oracle/dba/shutdown.old');
ftp.logout(l_conn);
utl_tcp.close_all_connections;
END;
/
-- Delete a file on a remote FTP server.
DECLARE
l_conn UTL_TCP.connection;
BEGIN
l_conn := ftp.login('ftp.company.com', '21', 'ftpuser', 'ftppassword');
ftp.delete(p_conn => l_conn,
p_file => '/u01/app/oracle/dba/temp.txt');
ftp.logout(l_conn);
utl_tcp.close_all_connections;
END;
/
-- Create a directory on a remote FTP server.
DECLARE
l_conn UTL_TCP.connection;
BEGIN
l_conn := ftp.login('ftp.company.com', '21', 'ftpuser', 'ftppassword');
ftp.mkdir(p_conn => l_conn,
p_dir => '/u01/app/oracle/test');
ftp.logout(l_conn);
utl_tcp.close_all_connections;
END;
/
-- Remove a directory from a remote FTP server.
DECLARE
l_conn UTL_TCP.connection;
BEGIN
l_conn := ftp.login('ftp.company.com', '21', 'ftpuser', 'ftppassword');
ftp.rmdir(p_conn => l_conn,
p_dir => '/u01/app/oracle/test');
ftp.logout(l_conn);
utl_tcp.close_all_connections;
END;
/
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