下面小編就為大家帶來一篇Python之自動取得公網IP的實例講解。小編覺得蠻不錯的，現在就分享給大家，也給大家做個參考。一起跟著小編過來看看吧
0.預備知識
0.1 SQL基礎
ubuntu、Debian系列安裝：
root@raspberrypi:~/python-script# apt-get install mysql-server
Redhat、Centos 系列安裝：
[root@localhost ~]# yum install mysql-server
登入資料庫
pi@raspberrypi:~ $ mysql -uroot -p -hlocalhost Enter password: Welcome to the MariaDB monitor. Commands end with ; or \g. Your MariaDB connection id is 36 Server version: 10.0.30-MariaDB-0+deb8u2 (Raspbian) Copyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. MariaDB [(none)]>
其中，mysql是客戶端指令-u是指定使用者- p是密碼-h是主機
建立資料庫、建立資料表
建立資料庫語法如下
MariaDB [(none)]> help create database
Name: 'CREATE DATABASE'
Description:
Syntax:
CREATE {DATABASE | SCHEMA} [IF NOT EXISTS] db_name
[create_specification] ...
create_specification:
[DEFAULT] CHARACTER SET [=] charset_name
| [DEFAULT] COLLATE [=] collation_name
CREATE DATABASE creates a database with the given name. To use this
statement, you need the CREATE privilege for the database. CREATE
SCHEMA is a synonym for CREATE DATABASE.
URL: https://mariadb.com/kb/en/create-database/
MariaDB [(none)]>建立資料表語法如下
MariaDB [(none)]> help create table Name: 'CREATE TABLE' Description: Syntax: CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name (create_definition,...) [table_options] [partition_options] Or: CREATE [TEMPORARY] TABLE [IF NOT EXISTS] tbl_name [(create_definition,...)] [table_options] [partition_options] select_statement
建立資料庫ServiceLogs
MariaDB [(none)]> CREATE DATABASE `ServiceLogs`
建立資料表
MariaDB [(none)]> CREATE TABLE `python_ip_logs` ( `serial_number` bigint(20) NOT NULL AUTO_INCREMENT, `time` datetime DEFAULT NULL, `old_data` varchar(50) DEFAULT NULL, `new_data` varchar(50) DEFAULT NULL, PRIMARY KEY (`serial_number`) ) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=latin1
表格內容的查詢
MariaDB [ServiceLogs]> select * from python_ip_logs; Empty set (0.00 sec)
#0.2 python連接操作MySQL
#模組下載安裝
下載路徑: https://pypi.python.org/pypi/MySQL-python
安裝:
安装: 解压 unzip MySQL-python-1.2.5.zip 进入解压后目录 cd MySQL-python-1.2.5/ 安装依赖 apt-get install libmysqlclient-dev 安装 python setup.py install 如果为0则安装OK echo $?
連接Mysql
root@raspberrypi:~/python-script# cat p_mysql_3.py
#!/usr/bin/env python
import MySQLdb
try :
conn = MySQLdb.connect("主机","用户名","密码","ServiceLogs")
print ("Connect Mysql successful")
except:
print ("Connect MySQL Fail")
root@raspberrypi:~/python-script#如果輸出Connect Mysql successful則說明連接OK
Python MySQL insert語句
root@raspberrypi:~/python-script# cat p_mysql1.py
#!/usr/bin/env python
import MySQLdb
db = MySQLdb.connect("localhost","root","root","ServiceLogs")
cursor = db.cursor()
sql = "insert INTO python_ip_logs VALUES (DEFAULT,'2017-09-29 22:46:00','123','456')"
cursor.execute(sql)
db.commit()
db.close()
root@raspberrypi:~/python-script#執行完成後可以mysql客戶端SELECT語句查看結果
1.需求
##1.1 需求量
由於寬頻每次重啟都會重新獲得一個新的IP，那麼在這種狀態下，在進行ssh連接的時候會出現諸多的不便，好在之前還有花生殼軟體，它能夠透過網域名稱來找到你的IP位址，進行訪問，這樣是最好的，不過最近花生殼也要進行實名認證才能夠使用，於是乎，這就催發了我寫一個python腳本來獲取公網IP的衝動。 實現效果:當IP變更時，能夠透過郵件進行通知，且在資料庫中寫入資料1.2 大致想法
1.3 流程圖
#2.程式碼寫
2.1.1 寫python程式碼
#getnetworkip.pyroot@raspberrypi:~/python-script# cat getnetworkip.py
#!/usr/bin/env python
# coding:UTF-8
import requests
import send_mail
import savedb
def get_out_ip() :
url = r'http://www.trackip.net/'
r = requests.get(url)
txt = r.text
ip = txt[txt.find('title')+6:txt.find('/title')-1]
return (ip)
def main() :
try:
savedb.general_files()
tip = get_out_ip()
cip = savedb.read_files()
if savedb.write_files(cip,tip) :
send_mail.SamMail(get_out_ip())
except :
return False
if __name__=="__main__" :
main()
root@raspberrypi:~/python-script#root@raspberrypi:~/python-script# cat savedb.py
#!/usr/bin/env python
import MySQLdb
import os
import time
dirname = "logs"
filename = "logs/.ip_tmp"
def general_files(Default_String="Null") :
var1 = Default_String
if not os.path.exists(dirname) :
os.makedirs(dirname)
if not os.path.exists(filename) :
f = open(filename,'w')
f.write(var1)
f.close()
def read_files() :
f = open(filename,'r')
txt = f.readline()
return (txt)
def write_files(txt,new_ip) :
if not txt == new_ip :
NowTime = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
old_ip = read_files()
os.remove(filename)
general_files(new_ip)
write_db(NowTime,old_ip,new_ip)
return True
else:
return False
def write_db(NowTime,Old_ip,New_ip) :
db = MySQLdb.connect("主机","用户名","密码","库名")
cursor = db.cursor()
sql = """
INSERT INTO python_ip_logs
VALUES
(DEFAULT,"%s","%s","%s")
""" %(NowTime,Old_ip,New_ip)
try:
cursor.execute(sql)
db.commit()
except:
db.rollback()
db.close()
root@raspberrypi:~/python-script#
#
root@raspberrypi:~/python-script# cat send_mail.py
#!/usr/bin/env python
import smtplib
import email.mime.text
def SamMail(HtmlString) :
HOST = "smtp.163.com"
SUBJECT = "主题"
TO = "对方的邮箱地址"
FROM = "来自于哪里"
Remask = "The IP address has been changed"
msg = email.mime.text.MIMEText("""
<html>
<head>
<meta charset="utf-8" />
</head>
<body>
<em><h1>ip:%s</h1></em>
</body>
</html>
""" %(HtmlString),"html","utf-8")
msg['Subject'] = SUBJECT
msg['From'] = FROM
msg['TO'] = TO
try:
server = smtplib.SMTP()
server.connect(HOST,'25')
server.starttls()
server.login("用户名","密码")
server.sendmail(FROM,TO,msg.as_string())
server.quit()
except:
print ("Send mail Error")
root@raspberrypi:~/python-script#
print ("%s" %(line),end='')3.效果
收到的郵件如下:
以上是Python中關於自動取得公網IP的實例講解的詳細內容。更多資訊請關注PHP中文網其他相關文章！
