使用oracle发送电子邮件

使用oracle的存储过程，调用oracle的相关包，进行电子邮件的发送。实现将有关的信息发送给相关人员的目的。

SQL> exec procsendemail('hello','hello test oracle email','[email protected]','[email protected]','mail.hthorizon.com',25,1,'[email protected]','mypassword','','bit 7');

PL/SQL procedure successfully completed

实现过程 PROCSENDEMAIL

CREATE OR REPLACE PROCEDURE PROCSENDEMAIL(P_TXT VARCHAR2,
P_SUB VARCHAR2,
P_SENDOR VARCHAR2,
P_RECEIVER VARCHAR2,
P_SERVER VARCHAR2,
P_PORT NUMBER DEFAULT 25,
P_NEED_SMTP INT DEFAULT 0,
P_USER VARCHAR2 DEFAULT NULL,
P_PASS VARCHAR2 DEFAULT NULL,
P_FILENAME VARCHAR2 DEFAULT NULL,
P_ENCODE VARCHAR2 DEFAULT 'bit 7')
AUTHID CURRENT_USER IS

L_CRLF VARCHAR2(2) := UTL_TCP.CRLF;
L_SENDORADDRESS VARCHAR2(4000);
L_SPLITE VARCHAR2(10) := '++';
BOUNDARY CONSTANT VARCHAR2(256) := '-----BYSUK';
FIRST_BOUNDARY CONSTANT VARCHAR2(256) := '--' || BOUNDARY || L_CRLF;
LAST_BOUNDARY CONSTANT VARCHAR2(256) := '--' || BOUNDARY || '--' ||
L_CRLF;
MULTIPART_MIME_TYPE CONSTANT VARCHAR2(256) := 'multipart/mixed; boundary="' ||
BOUNDARY || '"';

L_FIL BFILE;
L_FILE_LEN NUMBER;
L_MODULO NUMBER;
L_PIECES NUMBER;
L_FILE_HANDLE UTL_FILE.FILE_TYPE;
L_AMT BINARY_INTEGER := 672 * 3;
L_FILEPOS PLS_INTEGER := 1;
L_CHUNKS NUMBER;
L_BUF RAW(2100);
L_DATA RAW(2100);
L_MAX_LINE_WIDTH NUMBER := 54;
L_DIRECTORY_BASE_NAME VARCHAR2(100) := 'DIR_FOR_SEND_MAIL';
L_LINE VARCHAR2(1000);
L_MESG VARCHAR2(32767);

TYPE ADDRESS_LIST IS TABLE OF VARCHAR2(100) INDEX BY BINARY_INTEGER;
MY_ADDRESS_LIST ADDRESS_LIST;
TYPE ACCT_LIST IS TABLE OF VARCHAR2(100) INDEX BY BINARY_INTEGER;
MY_ACCT_LIST ACCT_LIST;
-------------------------------------返回附件源文件所在目录或者名称---------------------------
FUNCTION GET_FILE(P_FILE VARCHAR2,
P_GET INT) RETURN VARCHAR2 IS
L_FILE VARCHAR2(1000);
BEGIN
IF INSTR(P_FILE, '\') > 0 THEN
IF P_GET = 1 THEN
L_FILE := SUBSTR(P_FILE, 1, INSTR(P_FILE, '\', -1) - 1);
ELSIF P_GET = 2 THEN
L_FILE := SUBSTR(P_FILE, - (LENGTH(P_FILE) - INSTR(P_FILE, '\', -1)));
END IF;
ELSIF INSTR(P_FILE, '/') > 0 THEN
IF P_GET = 1 THEN
L_FILE := SUBSTR(P_FILE, 1, INSTR(P_FILE, '/', -1) - 1);
ELSIF P_GET = 2 THEN
L_FILE := SUBSTR(P_FILE, - (LENGTH(P_FILE) - INSTR(P_FILE, '/', -1)));
END IF;
END IF;
RETURN L_FILE;
END;
---------------------------------------------删除directory------------------------------------
PROCEDURE DROP_DIRECTORY(P_DIRECTORY_NAME VARCHAR2) IS
lc_errmsgvarchar2(100);
BEGIN
EXECUTE IMMEDIATE 'drop directory ' || P_DIRECTORY_NAME;
EXCEPTION WHEN OTHERS THEN
lc_errmsg := substr(sqlerrm,1,100);
null;
END;
--------------------------------------------------创建directory-------------------------------
PROCEDURE CREATE_DIRECTORY(P_DIRECTORY_NAME VARCHAR2,
P_DIR VARCHAR2) IS
BEGIN
EXECUTE IMMEDIATE 'create directory ' || P_DIRECTORY_NAME || ' as ''' ||
P_DIR || '''';
EXECUTE IMMEDIATE 'grant read,write on directory ' || P_DIRECTORY_NAME ||
' to public';
EXCEPTION
WHEN OTHERS THEN
RAISE;
END;
--------------------------------------------分割邮件地址或者附件地址-----------------------
PROCEDURE P_SPLITE_STR(P_STR VARCHAR2,
P_SPLITE_FLAG INT DEFAULT 1) IS
L_ADDR VARCHAR2(254) := '';
L_LEN INT;
L_STR VARCHAR2(4000);
J INT := 0;
BEGIN
L_STR := TRIM(RTRIM(REPLACE(REPLACE(P_STR, ';', ','), ' ', ''), ','));
L_LEN := LENGTH(L_STR);
FOR I IN 1 .. L_LEN LOOP
IF SUBSTR(L_STR, I, 1) <> ',' THEN
L_ADDR := L_ADDR || SUBSTR(L_STR, I, 1);
ELSE
J := J + 1;
IF P_SPLITE_FLAG = 1 THEN
L_ADDR := '<' || L_ADDR || '>';
MY_ADDRESS_LIST(J) := L_ADDR;
ELSIF P_SPLITE_FLAG = 2 THEN
MY_ACCT_LIST(J) := L_ADDR;
END IF;
L_ADDR := '';
END IF;
IF I = L_LEN THEN
J := J + 1;
IF P_SPLITE_FLAG = 1 THEN
L_ADDR := '<' || L_ADDR || '>';
MY_ADDRESS_LIST(J) := L_ADDR;
ELSIF P_SPLITE_FLAG = 2 THEN
MY_ACCT_LIST(J) := L_ADDR;
END IF;
END IF;
END LOOP;
END;
------------------------------------------------写邮件头和邮件内容-------------------------
PROCEDURE WRITE_DATA(P_CONN IN OUT NOCOPY UTL_SMTP.CONNECTION,
P_NAME IN VARCHAR2,
P_VALUE IN VARCHAR2,
P_SPLITE VARCHAR2 DEFAULT ':',
P_CRLF VARCHAR2 DEFAULT L_CRLF) IS
BEGIN
UTL_SMTP.WRITE_RAW_DATA(P_CONN, UTL_RAW.CAST_TO_RAW(CONVERT(P_NAME ||
P_SPLITE ||
P_VALUE ||
P_CRLF, 'ZHS16GBK')));
END;
----------------------------------------写MIME邮件尾部----------------------------------------

PROCEDURE END_BOUNDARY(CONN IN OUT NOCOPY UTL_SMTP.CONNECTION,
LAST IN BOOLEAN DEFAULT FALSE) IS
BEGIN
UTL_SMTP.WRITE_DATA(CONN, UTL_TCP.CRLF);
IF (LAST) THEN
UTL_SMTP.WRITE_DATA(CONN, LAST_BOUNDARY);
END IF;
END;

----------------------------------------------发送附件-------------------------------------

PROCEDURE ATTACHMENT
(
CONN IN OUT NOCOPY UTL_SMTP.CONNECTION,
MIME_TYPE IN VARCHAR2 DEFAULT 'text/plain',
INLINE IN BOOLEAN DEFAULT TRUE,
FILENAME IN VARCHAR2 DEFAULT 't.txt',
TRANSFER_ENC IN VARCHAR2 DEFAULT '7 bit',
DT_NAME IN VARCHAR2 DEFAULT '0'
) IS
L_FILENAME VARCHAR2(1000);
lc_errmsgvarchar2(100);
BEGIN
UTL_SMTP.WRITE_DATA(CONN, FIRST_BOUNDARY);
WRITE_DATA(CONN, 'Content-Type', MIME_TYPE);
DROP_DIRECTORY(DT_NAME);
CREATE_DIRECTORY(DT_NAME, GET_FILE(FILENAME, 1));
L_FILENAME := GET_FILE(FILENAME, 2);
IF (INLINE) THEN
WRITE_DATA(CONN, 'Content-Disposition', 'inline; filename="' || L_FILENAME || '"');
ELSE
WRITE_DATA(CONN, 'Content-Disposition', 'attachment; filename="' || L_FILENAME || '"');
END IF;
IF (TRANSFER_ENC IS NOT NULL) THEN
WRITE_DATA(CONN, 'Content-Transfer-Encoding', TRANSFER_ENC);
END IF;

UTL_SMTP.WRITE_DATA(CONN, UTL_TCP.CRLF);
IF TRANSFER_ENC = 'bit 7' THEN
BEGIN
L_FILE_HANDLE := UTL_FILE.FOPEN(DT_NAME, L_FILENAME, 'r');
LOOP
BEGIN
UTL_FILE.GET_LINE(L_FILE_HANDLE, L_LINE);
L_MESG := L_LINE || L_CRLF;
WRITE_DATA(CONN, '', L_MESG, '', '');
EXCEPTION WHEN OTHERS THEN
EXIT;
END;
END LOOP;
UTL_FILE.FCLOSE(L_FILE_HANDLE);
END_BOUNDARY(CONN);
EXCEPTION WHEN OTHERS THEN
UTL_FILE.FCLOSE(L_FILE_HANDLE);
END_BOUNDARY(CONN);
END;
ELSIF TRANSFER_ENC = 'base64' THEN
BEGIN
L_FILEPOS := 1;
L_FIL := BFILENAME(DT_NAME, L_FILENAME);
L_FILE_LEN := DBMS_LOB.GETLENGTH(L_FIL);
L_MODULO := MOD(L_FILE_LEN, L_AMT);
L_PIECES := TRUNC(L_FILE_LEN / L_AMT);
IF (L_MODULO <> 0) THEN
L_PIECES := L_PIECES + 1;
END IF;
DBMS_LOB.FILEOPEN(L_FIL, DBMS_LOB.FILE_READONLY);
DBMS_LOB.READ(L_FIL, L_AMT, L_FILEPOS, L_BUF);
L_DATA := NULL;
FOR I IN 1 .. L_PIECES LOOP
L_FILEPOS := I * L_AMT + 1;
L_FILE_LEN := L_FILE_LEN - L_AMT;
L_DATA := UTL_RAW.CONCAT(L_DATA, L_BUF);
L_CHUNKS := TRUNC(UTL_RAW.LENGTH(L_DATA) / L_MAX_LINE_WIDTH);
IF (I <> L_PIECES) THEN
L_CHUNKS := L_CHUNKS - 1;
END IF;
UTL_SMTP.WRITE_RAW_DATA(CONN, UTL_ENCODE.BASE64_ENCODE(L_DATA));
L_DATA := NULL;
IF (L_FILE_LEN < L_AMT AND L_FILE_LEN > 0) THEN
L_AMT := L_FILE_LEN;
END IF;
DBMS_LOB.READ(L_FIL, L_AMT, L_FILEPOS, L_BUF);
END LOOP;
DBMS_LOB.FILECLOSE(L_FIL);
END_BOUNDARY(CONN);
EXCEPTION WHEN OTHERS THEN
DBMS_LOB.FILECLOSE(L_FIL);
END_BOUNDARY(CONN);
RAISE;
END;
END IF;

DROP_DIRECTORY(DT_NAME);
exception when others then
lc_errmsg := substr(sqlerrm,1,100);
null;
END;

---------------------------------------------真正发送过程-----------------------------
PROCEDURE P_EMAIL(P_SENDORADDRESS2 VARCHAR2,
P_RECEIVERADDRESS2 VARCHAR2)
IS
L_CONN UTL_SMTP.CONNECTION;

ln_tempnumber;
lc_delimiterchar(1);
lc_utl_file_dirvarchar2(100);
BEGIN
L_CONN := UTL_SMTP.OPEN_CONNECTION(P_SERVER, P_PORT);
UTL_SMTP.HELO(L_CONN, P_SERVER);
IF P_NEED_SMTP = 1 THEN
UTL_SMTP.COMMAND(L_CONN, 'AUTH LOGIN', '');
UTL_SMTP.COMMAND(L_CONN, UTL_RAW.CAST_TO_VARCHAR2(UTL_ENCODE.BASE64_ENCODE(UTL_RAW.CAST_TO_RAW(P_USER))));
UTL_SMTP.COMMAND(L_CONN, UTL_RAW.CAST_TO_VARCHAR2(UTL_ENCODE.BASE64_ENCODE(UTL_RAW.CAST_TO_RAW(P_PASS))));
END IF;
UTL_SMTP.MAIL(L_CONN, P_SENDORADDRESS2);
UTL_SMTP.RCPT(L_CONN, P_RECEIVERADDRESS2);
UTL_SMTP.OPEN_DATA(L_CONN);

WRITE_DATA(L_CONN, 'Date', TO_CHAR(SYSDATE, 'yyyy-mm-dd hh24:mi:ss'));
WRITE_DATA(L_CONN, 'From', P_SENDOR);
WRITE_DATA(L_CONN, 'To', P_RECEIVER);
WRITE_DATA(L_CONN, 'Subject', P_SUB);

WRITE_DATA(L_CONN, 'Content-Type', MULTIPART_MIME_TYPE);
UTL_SMTP.WRITE_DATA(L_CONN, UTL_TCP.CRLF);
UTL_SMTP.WRITE_DATA(L_CONN, FIRST_BOUNDARY);
WRITE_DATA(L_CONN, 'Content-Type', 'text/plain;charset=gb2312');
UTL_SMTP.WRITE_DATA(L_CONN, UTL_TCP.CRLF);
WRITE_DATA(L_CONN, '', REPLACE(REPLACE(P_TXT, L_SPLITE, CHR(10)), CHR(10), L_CRLF), '', '');
END_BOUNDARY(L_CONN);
IF (P_FILENAME IS NOT NULL) THEN
P_SPLITE_STR(P_FILENAME, 2);
select value into lc_utl_file_dir
from V$PARAMETER
where name='utl_file_dir';
if instr(lc_utl_file_dir,'/') > 0 then
lc_delimiter := '/';
else
lc_delimiter := '\';
end if;

ln_temp := MY_ACCT_LIST.COUNT;
FOR K IN 1 .. MY_ACCT_LIST.COUNT LOOP
ATTACHMENT
(
CONN => L_CONN,
FILENAME => lc_utl_file_dir||lc_delimiter||MY_ACCT_LIST(K),
TRANSFER_ENC => P_ENCODE, DT_NAME => L_DIRECTORY_BASE_NAME || TO_CHAR(K)
);
END LOOP;
END IF;
UTL_SMTP.CLOSE_DATA(L_CONN);
UTL_SMTP.QUIT(L_CONN);
EXCEPTION
WHEN OTHERS THEN
NULL;
RAISE;

END;

---------------------------------------------------主调过程------------------------------

BEGIN
L_SENDORADDRESS := '<' || P_SENDOR || '>';
P_SPLITE_STR(P_RECEIVER);
FOR K IN 1 .. MY_ADDRESS_LIST.COUNT LOOP
P_EMAIL(L_SENDORADDRESS, MY_ADDRESS_LIST(K));
END LOOP;

EXCEPTION
WHEN OTHERS THEN
RAISE;
END;