前言
xml课的第三第四个作业都是用java编程来实现xml dom的一些转换, 因为自己没怎么学过java,因此和老师说了下想用python来实现第三第四个作业,下面就直接贴代码了
xml文档
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<? xml version = "1.0" encoding = "UTF-8" ?> <? xml-stylesheet type = "text/xsl" href = "1.xslt" rel = "external nofollow" ?> <!DOCTYPE sys_info [ <!ELEMENT sys_info (info+)> <!ELEMENT info (sysDescr,sysUpTime,sysContact,sysName)> <!ELEMENT sysDescr (#PCDATA)> <!ELEMENT sysUpTime (#PCDATA)> <!ELEMENT sysContact (#PCDATA)> <!ELEMENT sysName (#PCDATA)> <!ATTLIST info ip CDATA #REQUIRED> ]> < sys_info xmlns:xsi = "http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation = "1.xsd" > < info ip = "192.168.1.1" > < sysDescr >X86-Windows2000</ sysDescr > < sysUpTime >9 hours 42 minutes</ sysUpTime > < sysContact >zhangsan</ sysContact > < sysName >computerZhang</ sysName > </ info > < info ip = "192.168.1.3" > < sysDescr >router</ sysDescr > < sysUpTime >24 hours</ sysUpTime > < sysContact >ruijie</ sysContact > < sysName >Router2</ sysName > </ info > < info ip = "192.168.2.1" > < sysDescr >router</ sysDescr > < sysUpTime >89 hours</ sysUpTime > < sysContact >Cisco</ sysContact > < sysName >Router3</ sysName > </ info > </ sys_info > |
解析xml文档用的是python自带的xml库ElementTree, 读取mysql可以安装MySQLdb模块
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apt - get install python - MySQLdb |
程序运行如下
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root@lj / h / s / x / 3 # python 21.py -h usage: 21.py [ - h] status positional arguments: status 0clar , 1read , 2insert |
读取xml保存到数据库
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root@lj / h / s / x / 3 # python 21.py 2 插入语句: insert into info values ( '192.168.1.1' , 'X86-Windows2000' , '9 hours 42 minutes' , 'zhangsan' , 'computerZhang' ) 插入语句: insert into info values ( '192.168.1.3' , 'router' , '24 hours' , 'ruijie' , 'Router2' ) 插入语句: insert into info values ( '192.168.2.1' , 'router' , '89 hours' , 'Cisco' , 'Router3' ) insert success!!! |
读取数据库保存到xml文档
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root@lj / h / s / x / 3 # python 21.py 1 + - - - - - - - - - - - - - + - - - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - - - - - - + - - - - - - - - - - - - + - - - - - - - - - - - - - - - + | IP地址 | sysDescr. 0 | sysUpTime. 0 | sysContact | sysName. 0 | + - - - - - - - - - - - - - + - - - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - - - - - - + - - - - - - - - - - - - + - - - - - - - - - - - - - - - + | 192.168 . 1.1 | X86 - Windows2000 | 9 hours 42 minutes | zhangsan | computerZhang | | 192.168 . 1.3 | router | 24 hours | ruijie | Router2 | | 192.168 . 2.1 | router | 89 hours | Cisco | Router3 | + - - - - - - - - - - - - - + - - - - - - - - - - - - - - - - - + - - - - - - - - - - - - - - - - - - - - + - - - - - - - - - - - - + - - - - - - - - - - - - - - - + write into sys.xml... |
建立数据库的sql文件:
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- - MySQL dump 10.16 Distrib 10.1 . 21 - MariaDB, for debian - linux - gnu (x86_64) - - - - Host: localhost Database: localhost - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Server version 10.1 . 21 - MariaDB - 5 / * ! 40101 SET @OLD_CHARACTER_SET_CLIENT = @@CHARACTER_SET_CLIENT * / ; / * ! 40101 SET @OLD_CHARACTER_SET_RESULTS = @@CHARACTER_SET_RESULTS * / ; / * ! 40101 SET @OLD_COLLATION_CONNECTION = @@COLLATION_CONNECTION * / ; / * ! 40101 SET NAMES utf8mb4 * / ; / * ! 40103 SET @OLD_TIME_ZONE = @@TIME_ZONE * / ; / * ! 40103 SET TIME_ZONE = '+00:00' * / ; / * ! 40014 SET @OLD_UNIQUE_CHECKS = @@UNIQUE_CHECKS, UNIQUE_CHECKS = 0 * / ; / * ! 40014 SET @OLD_FOREIGN_KEY_CHECKS = @@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS = 0 * / ; / * ! 40101 SET @OLD_SQL_MODE = @@SQL_MODE, SQL_MODE = 'NO_AUTO_VALUE_ON_ZERO' * / ; / * ! 40111 SET @OLD_SQL_NOTES = @@SQL_NOTES, SQL_NOTES = 0 * / ; - - - - Table structure for table `info` - - DROP TABLE IF EXISTS `info`; / * ! 40101 SET @saved_cs_client = @@character_set_client * / ; / * ! 40101 SET character_set_client = utf8 * / ; CREATE TABLE `info` ( `ip` char( 15 ) NOT NULL, `sysDescr` varchar( 20 ) DEFAULT NULL, `sysUpTime` varchar( 40 ) DEFAULT NULL, `sysContract` varchar( 20 ) DEFAULT NULL, `sysName` varchar( 20 ) DEFAULT NULL, PRIMARY KEY (`ip`) ) ENGINE = InnoDB DEFAULT CHARSET = utf8mb4; / * ! 40101 SET character_set_client = @saved_cs_client * / ; - - - - Dumping data for table `info` - - LOCK TABLES `info` WRITE; / * ! 40000 ALTER TABLE `info` DISABLE KEYS * / ; INSERT INTO `info` VALUES ( '192.168.1.1' , 'X86-Windows2000' , '9 hours 42 minutes' , 'zhangsan' , 'computerZhang' ),( '192.168.1.3' , 'router' , '24 hours' , 'ruijie' , 'Router2' ),( '192.168.2.1' , 'router' , '89 hours' , 'Cisco' , 'Router3' ); / * ! 40000 ALTER TABLE `info` ENABLE KEYS * / ; UNLOCK TABLES; / * ! 40103 SET TIME_ZONE = @OLD_TIME_ZONE * / ; / * ! 40101 SET SQL_MODE = @OLD_SQL_MODE * / ; / * ! 40014 SET FOREIGN_KEY_CHECKS = @OLD_FOREIGN_KEY_CHECKS * / ; / * ! 40014 SET UNIQUE_CHECKS = @OLD_UNIQUE_CHECKS * / ; / * ! 40101 SET CHARACTER_SET_CLIENT = @OLD_CHARACTER_SET_CLIENT * / ; / * ! 40101 SET CHARACTER_SET_RESULTS = @OLD_CHARACTER_SET_RESULTS * / ; / * ! 40101 SET COLLATION_CONNECTION = @OLD_COLLATION_CONNECTION * / ; / * ! 40111 SET SQL_NOTES = @OLD_SQL_NOTES * / ; - - Dump completed on 2017 - 03 - 23 15 : 36 : 31 |
下面是主要代码
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#!/usr/bin/env python # -*- coding: utf-8 -*- # @Date : 2017-03-23 14:47:39 # @Author : 江sir (2461805286@qq.com) # @Link : http://www.blogsir.com.cn # @Version : $1.1 import sys import xml.etree.ElementTree as ET import MySQLdb import argparse from prettytable import PrettyTable ''' 一个xml作业,自己用python实现了从xml读取到数据库,和从数据库读取到xml的功能 ''' def buildNewsXmlFile(data): root = ET.Element( 'sys_info' ) #创建sys_info根元素 # print help(ET) info = ET.SubElement(root, "info" ,attrib = { 'ip' : '%s' % data[ 0 ][ 0 ]}) #创建四个二级元素 sysDescr = ET.SubElement(info, "sysDescr" ) sysUpTime = ET.SubElement(info, "sysUpTime" ) sysContact = ET.SubElement(info, "sysContact" ) sysName = ET.SubElement(info, "sysName" ) sysDescr.text = data[ 0 ][ 1 ] sysUpTime.text = data[ 0 ][ 2 ] sysContact.text = data[ 0 ][ 3 ] sysName.text = data[ 0 ][ 4 ] info = ET.SubElement(root, "info" ,attrib = { 'ip' : '%s' % data[ 1 ][ 0 ]}) sysDescr = ET.SubElement(info, "sysDescr" ) sysUpTime = ET.SubElement(info, "sysUpTime" ) sysContact = ET.SubElement(info, "sysContact" ) sysName = ET.SubElement(info, "sysName" ) sysDescr.text = data[ 1 ][ 1 ] sysUpTime.text = data[ 1 ][ 2 ] sysContact.text = data[ 1 ][ 3 ] sysName.text = data[ 1 ][ 4 ] info = ET.SubElement(root, "info" ,attrib = { 'ip' : '%s' % data[ 2 ][ 0 ]}) sysDescr = ET.SubElement(info, "sysDescr" ) sysUpTime = ET.SubElement(info, "sysUpTime" ) sysContact = ET.SubElement(info, "sysContact" ) sysName = ET.SubElement(info, "sysName" ) sysDescr.text = data[ 2 ][ 1 ] sysUpTime.text = data[ 2 ][ 2 ] sysContact.text = data[ 2 ][ 3 ] sysName.text = data[ 2 ][ 4 ] print 'write into sys.xml...' tree = ET.ElementTree(root) tree.write( "sys.xml" ) def xml_parser(): data = {} data_list = [] tree = ET.parse( '21.xml' ) root = tree.getroot() # 获取根元素 for info in root.findall( 'info' ): #查找所有info元素 for child in info: #对每个info元素遍历属性和子节点 data [ 'ip' ] = info.attrib[ 'ip' ] data[child.tag] = child.text # print data.values() data_list.append(data.values()) # print data_list return data_list def get_Mysql(): conn = MySQLdb.connect( 'localhost' , 'root' , 'root' , 'sys_info2' ,charset = 'utf8' ) cursor = conn.cursor() cursor.execute( 'select * from info' ); result = cursor.fetchall() if not result: print 'please insert the database first' sys.exit() x = PrettyTable([ 'IP地址' , 'sysDescr.0' , 'sysUpTime.0' , 'sysContact' , 'sysName.0' ]) for i in result: x.add_row(i) print x # print result return result def set_Mysql(data): conn = MySQLdb.connect( 'localhost' , 'root' , 'root' , 'sys_info2' ,charset = 'utf8' ) cursor = conn.cursor() for i in data: # print tuple(i) sysName,ip,sysUpTime,sysDescr,sysContact = tuple (i) sql = "insert into info values ('%s','%s','%s','%s','%s')" % (ip,sysDescr,sysUpTime,sysContact,sysName) print '插入语句:' ,sql try : cursor.execute(sql) except : print 'please clear the database' sys.exit() print 'insert success!!!' conn.commit() conn.close() def clear_Mysql(): conn = MySQLdb.connect( 'localhost' , 'root' , 'root' , 'sys_info2' ,charset = 'utf8' ) cursor = conn.cursor() cursor.execute( 'delete from info' ) conn.commit() conn.close() def main(): parser = argparse.ArgumentParser() parser.add_argument( 'status' , type = int , help = "0clar,1read,2insert" ) arg = parser.parse_args() # print arg status = arg.status if status = = 1 : data = get_Mysql() buildNewsXmlFile(data) elif status = = 2 : data = xml_parser() set_Mysql(data) elif status = = 0 : clear_Mysql() else : print 'usage %s [0|1|2]' % sys.argv[ 0 ] if __name__ = = '__main__' : main() |
第四个作业是web编程,用python的flask框架即可快速实现一个xml文档的显示,文件过多,就不贴了
总结
以上就是这文章的全部内容了,希望本文的内容对大家的学习或者工作能带来一定的帮助,如有疑问大家可以留言交流,谢谢大家对服务器之家的支持。
原文链接:http://www.blogsir.com.cn/safe/354.html