最近寫了一直Web Service給很多不同站的客戶端呼叫，并直接寄信通知程式中的異常。
直接在oracle中設置某張表的trigger（after insert），當有新的異常資料寫入時候，寄給相關站別的管理員。
/* Written by milo on 2017-03-09
*觸發器發送email
*/
CREATE OR REPLACE TRIGGER small_program_exception_afin
AFTER INSERT ON small_program_exception
FOR EACH ROW
DECLARE
l_html VARCHAR2(32767);
v_station_name varchar(300);
v_email_string varchar2(1000);
v_program_name varchar2(300);
v_station_code varchar(300);
BEGIN
/*
dbms_output.put_line('new.station: ' || :new.station);
dbms_output.put_line('new.program_id: ' || :new.program_id);
dbms_output.put_line('new.occurred_time: ' ||
to_char(:new.occurred_time, 'yyyy-mm-dd hh24:mm:ss'));
dbms_output.put_line('new.program_id: ' ||
substr(:new.exception_message, 1, 32767));
*/ BEGIN
--獲取程式名稱、接收人email以及站名稱
select s.stn_name, m.mail_for_error, p.name,s.stn_code
into v_station_name, v_email_string, v_program_name,v_station_code
from tk_cust_prog_m m, tk_cust_prog_d d, station s, tk_programe p
where m.custom_no = d.custom_no
and m.custom_no = s.stn_code
and d.prog_id = p.id
and d.prog_id = :new.program_id
and d.custom_no = :new.station;
exception
when no_data_found then
raise_application_error(-20001, 'No data found.');
--dbms_output.put_line('no_data_found');
--dbms_output.put_line('v_email_string: ' || v_email_string);
if (v_email_string is null or v_email_string = ' ') then
raise_application_error(-20001,
'Errors email recipient should not be empty, please type the recipient''s email address on the web-function');
end if;
END; l_html := '<html>
<head>
<title></title>
</head>
<body>
<p> Dear ' || v_station_code || '</p>
<p> This email is to notify you that an unexpected error occurred in the program. Please check it ASAP.</p>
<p> Exception Message</p>
<p> ------------------------------------------------------------------------------</p>
<p> <b>' || v_station_name || '</b></p>
<p> <b>' || v_program_name || '</b></p>
<p> Posted on ' ||
to_char(:new.occurred_time, 'mm-dd-yyyy hh24:mm:ss') || '</p>
<p> ' || substr(:new.exception_message, 1, 32767) || '</p>
<p> ------------------------------------------------------------------------------</p>
</body>
</html>'; send_mail(p_to => v_email_string,
p_from => 'milo@***.com', -- ***@oecgroup.com
p_subject => 'Program Occurred Errors Notice',
p_text_msg => '',
p_html_msg => l_html,
p_smtp_host => 'spam.***.com',
p_account => 'milo@***.com',
p_password => '***');
END;
/