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📜  Scrapy-发送电子邮件

📅  最后修改于: 2020-10-31 14:40:55             🧑  作者: Mango

描述

Scrapy可以使用自己的称为Twisted non-blocking IO的工具发送电子邮件，该工具与爬网程序的non-blocking IO保持距离。您可以配置一些发送电子邮件的设置，并提供用于发送附件的简单API。

实例化MailSender的方法有两种，如下表所示-

Sr.No Parameters Method
1 from scrapy.mail import MailSender mailer = MailSender() By using a standard constructor.
2 mailer = MailSender.from_settings(settings) By using Scrapy settings object.

以下行发送不带附件的电子邮件-

mailer.send(to = ["receiver@example.com"], subject = "subject data", body = "body data", 
   cc = ["list@example.com"])

MailSender类参考

MailSender类使用Twisted非阻塞IO从Scrapy发送电子邮件。

class scrapy.mail.MailSender(smtphost = None, mailfrom = None, smtpuser = None, 
   smtppass = None, smtpport = None)

下表显示了MailSender类中使用的参数-

Sr.No Parameter & Description
1

smtphost (str)

The SMTP host is used for sending the emails. If not, then MAIL_HOST setting will be used.
2

mailfrom (str)

The address of receiver is used to send the emails. If not, then MAIL_FROM setting will be used.
3

smtpuser

It specifies the SMTP user. If it is not used, then MAIL_USER setting will be used and there will be no SMTP validation if is not mentioned.
4

smtppass (str)

It specifies the SMTP pass for validation.
5

smtpport (int)

It specifies the SMTP port for connection.
6

smtptls (boolean)

It implements using the SMTP STARTTLS.
7

smtpssl (boolean)

It administers using a safe SSL connection.

指定的MailSender类引用中有以下两种方法。第一种方法

classmethod from_settings(settings)

它通过使用Scrapy设置对象合并。它包含以下参数-

设置(scrapy.settings.Settings对象) -被视为电子邮件接收者。

另一种方法

send(to, subject, body, cc = None, attachs = (), mimetype = 'text/plain', charset = None)

下表包含上述方法的参数-

Sr.No Parameter & Description
1

to (list)

It refers to the email receiver.
2

subject (str)

It specifies the subject of the email.
3

cc (list)

It refers to the list of receivers.
4

body (str)

It refers to email body data.
5

attachs (iterable)

It refers to the email’s attachment, mimetype of the attachment and name of the attachment.
6

mimetype (str)

It represents the MIME type of the e-mail.
7

charset (str)

It specifies the character encoding used for email contents.

邮件设定

以下设置确保无需编写任何代码，我们就可以使用项目中的MailSender类配置电子邮件。

Sr.No Settings & Description Default Value
1

MAIL_FROM

It refers to sender email for sending emails.

 ‘scrapy@localhost’
2

MAIL_HOST

It refers to SMTP host used for sending emails.

 ‘localhost’
3

MAIL_PORT

It specifies SMTP port to be used for sending emails.

 25
4

MAIL_USER

It refers to SMTP validation. There will be no validation, if this setting is set to disable.

 None
5

MAIL_PASS

It provides the password used for SMTP validation.

 None
6

MAIL_TLS

It provides the method of upgrading an insecure connection to a secure connection using SSL/TLS.

 False
7

MAIL_SSL

It implements the connection using a SSL encrypted connection.

 False