--把附件分成多份，这样可以发送超过32K的附件
    L_FILEPOS := 1; --重置offset，在发送多个附件时，必须重置
    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; --结束处理二进制附件
    END IF; --结束处理附件内容
    DROP_DIRECTORY (DT_NAME);
    END; --结束过程ATTACHMENT
    ---------------------------------------------真正发送邮件的过程--------------------------------------------
    PROCEDURE P_EMAIL (P_SENDORADDRESS2 VARCHAR2, --发送地址
    P_RECEIVERADDRESS2 VARCHAR2) --接受地址
    IS
    L_CONN UTL_SMTP.CONNECTION; --定义连接
    BEGIN
    /*初始化邮件服务器信息，连接邮件服务器*/
    L_CONN := UTL_SMTP.OPEN_CONNECTION (P_SERVER, P_PORT);
    UTL_SMTP.HELO (L_CONN, P_SERVER);
    /* smtp服务器登录校验 */
    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;
    /*设置发送地址和接收地址*/
    UTL_SMTP.MAIL (L_CONN, P_SENDORADDRESS2);
    UTL_SMTP.RCPT (L_CONN, P_RECEIVERADDRESS2);
    /*设置邮件头*/
    UTL_SMTP.OPEN_DATA (L_CONN);
    WRITE_DATA (L_CONN, 'Date', TO_CHAR (SYSDATE, 'yyyy-mm-dd hh24:mi:ss'));
    /*设置发送人*/
    WRITE_DATA (L_CONN, 'From', P_SENDOR);
    /*设置接收人*/
    WRITE_DATA (L_CONN, 'To', P_RECEIVER);
    /*设置邮件主题*/
    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');
    --单独空一行，否则，正文内容不显示
    UTL_SMTP.WRITE_DATA (L_CONN, UTL_TCP.CRLF);
    /* 设置邮件正文
    把分隔符还原成chr(10)。这主要是为了shell中调用该过程，如果有多行，则先把多行的内容合并成一行，并用 l_splite分隔
    然后用 l_crlf替换chr(10)。这一步是必须的，否则将不能发送邮件正文有多行的邮件
    */
    WRITE_DATA (
    L_CONN,
    '',
    REPLACE (REPLACE (P_TXT, L_SPLITE, CHR (10)), CHR (10), L_CRLF),
    '',
    ''
    );
    END_BOUNDARY (L_CONN);
    --如果文件名称不为空，则发送附件
    IF (P_FILENAME IS NOT NULL)
    THEN
    --根据逗号或者分号拆分附件地址
    P_SPLITE_STR (P_FILENAME, 2);
    --循环发送附件(在同一个邮件中)
    FOR K IN 1 .. MY_ACCT_LIST.COUNT
    LOOP
    ATTACHMENT (
    CONN => L_CONN,
    FILENAME => MY_ACCT_LIST (K),
    TRANSFER_ENC => P_ENCODE,
    DT_NAME => L_DIRECTORY_BASE_NAME || TO_CHAR (K)
    );
    END LOOP;
    END IF;
    /*关闭数据写入*/
    UTL_SMTP.CLOSE_DATA (L_CONN);
    /*关闭连接*/
    UTL_SMTP.QUIT (L_CONN);
    /*异常处理*/
    EXCEPTION
    WHEN OTHERS
    THEN
    NULL;
    RAISE;
    END;
    ---------------------------------------------------主过程-----------------------------------------------------
    BEGIN
    L_SENDORADDRESS := '<' || P_SENDOR || '>';
    P_SPLITE_STR (P_RECEIVER); --处理邮件地址
    FOR K IN 1 .. MY_ADDRESS_LIST.COUNT
    LOOP
    P_EMAIL (L_SENDORADDRESS, MY_ADDRESS_LIST (K));
    END LOOP;
    /*处理邮件地址，根据逗号分割邮件*/
    EXCEPTION
    WHEN OTHERS
    THEN
    RAISE;
    END;