Oracle 10G中轻松发送email -- UTL_MAIL

0G之前,如果要从oracle中发送email,必须借助oracle的utl_smtp和utl_tcp功能包,自己包装一个email发送程序,然后使用.自从10G后,这个流程将变得非常简单.因为oracle给我们提供了一个utl_mail包,我们可以直接调用发送email.其实这个包底层也是调用了utl_smtp、utl_tcp的相关api. 不过utl_mail只能用于无安全验证的stmp服务器.如果smtp服务器需要安全验证,只能只用utl_smtp来实现.

1、确定是否安装了utl_mail,如果没有用下面的语句安装utl_mail

sqlplus sys/ SQL> @$ORACLE_HOME/rdbms/admin/utlmail.sql SQL> @$ORACLE_HOME/rdbms/admin/prvtmail.plb

2、设置smtp_out_server参数

10g中oracle新增加了这个参数, 用来定义smtp服务器.如果该参数没有设置,oracle会自动解析db_domain 参数,用域名来实现mail的发送,没有db_domain也没有设置,那么mail将不会成功发送.建议设置smtp_out_server参数.

alter system set smtp_out_server='mail.a.com';

如果要同时设置多个smtp服务器,可以将各个服务器用逗号隔开.

alter system set smtp_out_server='mail.a.com:25,mail.b.com';

上面的域名也可以用ip来代替,oracle默认会使用25端口来发送,也可以手动指定具体的端口.

alter system set smtp_out_server='mail.a.com:25,mail.b.com:25';

3、测试邮件发送

目前utl_mail提供了三个发送邮件的过程.

SQL> desc utl_mail PROCEDURE SEND Argument Name Type In/Out Default? ------------------------------ ----------------------- ------ -------- SENDER VARCHAR2 IN RECIPIENTS VARCHAR2 IN CC VARCHAR2 IN DEFAULT BCC VARCHAR2 IN DEFAULT SUBJECT VARCHAR2 IN DEFAULT MESSAGE VARCHAR2 IN DEFAULT MIME_TYPE VARCHAR2 IN DEFAULT PRIORITY BINARY_INTEGER IN DEFAULT PROCEDURE SEND_ATTACH_RAW Argument Name Type In/Out Default? ------------------------------ ----------------------- ------ -------- SENDER VARCHAR2 IN RECIPIENTS VARCHAR2 IN CC VARCHAR2 IN DEFAULT BCC VARCHAR2 IN DEFAULT SUBJECT VARCHAR2 IN DEFAULT MESSAGE VARCHAR2 IN DEFAULT MIME_TYPE VARCHAR2 IN DEFAULT PRIORITY BINARY_INTEGER IN DEFAULT ATTACHMENT RAW IN ATT_INLINE BOOLEAN IN DEFAULT ATT_MIME_TYPE VARCHAR2 IN DEFAULT ATT_FILENAME VARCHAR2 IN DEFAULT PROCEDURE SEND_ATTACH_VARCHAR2 Argument Name Type In/Out Default? ------------------------------ ----------------------- ------ -------- SENDER VARCHAR2 IN RECIPIENTS VARCHAR2 IN CC VARCHAR2 IN DEFAULT BCC VARCHAR2 IN DEFAULT SUBJECT VARCHAR2 IN DEFAULT MESSAGE VARCHAR2 IN DEFAULT MIME_TYPE VARCHAR2 IN DEFAULT PRIORITY BINARY_INTEGER IN DEFAULT ATTACHMENT VARCHAR2 IN ATT_INLINE BOOLEAN IN DEFAULT ATT_MIME_TYPE VARCHAR2 IN DEFAULT ATT_FILENAME VARCHAR2 IN DEFAULT

创建存放附件的目录.

create directory export as '/oracle/product/dump_dir'; grant read,write on directory export to public;

没有附件的邮件发送示例:

begin utl_mail.send(sender=>'oracle@scmdbserver', recipients=>'[email protected]', subject=>'oracle email test', cc=>'[email protected],[email protected]', bcc=>'[email protected],[email protected]', message=>'sender ok?'); end; /

带附件的邮件发送(基于文本的附件),如要要发送二进制附件,可以使用utl_mail.send_attach_raw过程

DECLARE fHandle utl_file.file_type; vTextOut varchar2(32000); text varchar2(32000); BEGIN fHandle := UTL_FILE.FOPEN('EXPORT','a.log','r'); IF UTL_FILE.IS_OPEN(fHandle) THEN DBMS_OUTPUT.PUT_LINE('File read open'); ELSE DBMS_OUTPUT.PUT_LINE('File read not open'); END IF; LOOP begin UTL_FILE.GET_LINE(fHandle,vTextOut); text:=text||vTextOut; EXCEPTION WHEN NO_DATA_FOUND THEN EXIT; end; END LOOP; UTL_FILE.FCLOSE(fHandle); utl_mail.send_attach_varchar2(sender=>'oracle@scmdbserver', recipients=>'[email protected]', subject=>'oracle email test', cc=>'[email protected],[email protected]', bcc=>'[email protected],[email protected]', message=>'sender ok?', attachment=>text, att_filename=>'a.log'); END; /

oracle在send_attach_varchar2中附件内容用varchar2来存储,也就是说附件不能大于32k.send_attach_raw不能发送超过2000字节的附件.

有关oracle发送mail的信息可以参考,metalink:Doc ID:269375.1 Doc ID:201639.1 FAQ and Known Issues While Using UTL_SMTP and UTL_MAIL Doc:ID 730746.1 其中包含了发送大于32k附件的方法

 

FROM: http://www.validba.net/2009/06/oracle-10g%E4%B8%AD%E8%BD%BB%E6%9D%BE%E5%8F%91%E9%80%81email-%E5%8E%9F%E5%88%9B/

 

Ref: http://hi.baidu.com/javenzhen/blog/item/bed3b74a8f7c63e383025c77.html