Question

有没有办法通过for循环向数据库中的所有电子邮件地址发送电子邮件？我不太确定for循环并需要帮助。

我关注此page电子邮件示例。 SQL语句为select email from table name

import smtplib

SERVER = "localhost"

FROM = "sender@example.com"
TO = ["user@example.com"] 

SUBJECT = "Hello!"

TEXT = "This message was sent with Python's smtplib."

# Prepare actual message
message = """\
From: %s
To: %s
Subject: %s

%s
""" % (FROM, ", ".join(TO), SUBJECT, TEXT)

# Send the mail

server = smtplib.SMTP(SERVER)
server.sendmail(FROM, TO, message)
server.quit()

Answer 1

您必须下载并导入正确的数据库界面。（MySQL或SQL Server等）
然后做这样的事情：

    import smtplib
    import MySQLdb

    SERVER = "localhost"

    FROM = "sender@example.com"
    TO = ["user@example.com","another@user.com","many@users.com"] 

    #SQL data access part
    db = MySQLdb.connect(host='localhost', user='root', passwd='$$', db='emaildatabase')
    cursor = db.cursor()
    cursor.execute('select email from tablename where email is not null')
    db.commit()
    rows = cursor.fetchall()
    for item in rows:
        TO.append(item)

    SUBJECT = "Hello!"

    TEXT = "This message was sent with Python's smtplib."

    # Prepare actual message
    message = """\
    From: %s
    To: %s
    Subject: %s

    %s
    """ % (FROM, ", ".join(TO), SUBJECT, TEXT)

    # Send the mail

    server = smtplib.SMTP(SERVER)
    server.sendmail(FROM, TO, message)
    server.quit()

如果您不理解，请告诉我。

通过循环在python中发送电子邮件

1 个答案: