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python提取xml指定内容

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2022-06-02 / 0 评论 / 8 点赞 / 152 阅读 / 2,213 字 / 正在检测是否收录...
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1.第一种方法:python操作xml文件

随手找了一个xml文件内容(jenkins相关文件)

<?xml version="1.0" encoding="UTF-8"?>
<!--
The MIT License

Copyright (c) 2004-2009, Sun Microsystems, Inc., Kohsuke Kawaguchi, Tom Huybrechts, id:digerata, Yahoo! Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
-->

<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1"
         metadata-complete="true">
  <display-name>Jenkins v2.336</display-name>
  <description>Build management system</description>

  <servlet>
    <servlet-name>Stapler</servlet-name>
    <servlet-class>org.kohsuke.stapler.Stapler</servlet-class>
    <init-param>
      <param-name>default-encodings</param-name>
      <param-value>text/html=UTF-8</param-value>
    </init-param>
    <init-param>
      <param-name>diagnosticThreadName</param-name>
      <param-value>false</param-value>
    </init-param>
    <async-supported>true</async-supported>
  </servlet>

  <servlet-mapping>
    <servlet-name>Stapler</servlet-name>
    <url-pattern>/*</url-pattern>
  </servlet-mapping>

  <filter>
    <filter-name>suspicious-request-filter</filter-name>
    <filter-class>jenkins.security.SuspiciousRequestFilter</filter-class>
    <async-supported>true</async-supported>
  </filter>
  <filter>
    <filter-name>diagnostic-name-filter</filter-name>
    <filter-class>org.kohsuke.stapler.DiagnosticThreadNameFilter</filter-class>
    <async-supported>true</async-supported>
  </filter>
  <filter>
    <filter-name>encoding-filter</filter-name>
    <filter-class>hudson.util.CharacterEncodingFilter</filter-class>
    <async-supported>true</async-supported>
  </filter>
  <filter>
    <filter-name>compression-filter</filter-name>
    <filter-class>org.kohsuke.stapler.compression.CompressionFilter</filter-class>
    <async-supported>true</async-supported>
  </filter>
  <filter>
    <filter-name>authentication-filter</filter-name>
    <filter-class>hudson.security.HudsonFilter</filter-class>
    <async-supported>true</async-supported>
  </filter>
  <filter>
    <filter-name>csrf-filter</filter-name>
    <filter-class>hudson.security.csrf.CrumbFilter</filter-class>
    <async-supported>true</async-supported>
  </filter>
  <filter>
    <filter-name>plugins-filter</filter-name>
    <filter-class>hudson.util.PluginServletFilter</filter-class>
    <async-supported>true</async-supported>
  </filter>

  <!--
	The Headers filter allows us to override headers sent by the container
	that may be in conflict with what we want.  For example, Tomcat will set
	Cache-Control: no-cache for any files behind the security-constraint
	below.  So if Hudson is on a public server, and you want to only allow
	authorized users to access it, you may want to pay attention to this.
	
	See: http://www.nabble.com/No-browser-caching-with-Hudson- -tf4601857.html
  
  <filter>
    <filter-name>change-headers-filter</filter-name>
    <filter-class>hudson.ResponseHeaderFilter</filter-class>
    <!- The value listed here is for 24 hours.  Increase or decrease as you see 
    fit.  Value is in seconds. Make sure to keep the public option ->
    <init-param>
      <param-name>Cache-Control</param-name>
      <param-value>max-age=86400, public</param-value>
    </init-param>
    <!- It turns out that Tomcat just doesn't want to let
    go of its cache option.  If you override Cache-Control,
    it starts to send Pragma: no-cache as a backup.
     ->
    <init-param>
      <param-name>Pragma</param-name>
      <param-value>public</param-value>
    </init-param>
  </filter>
  <filter-mapping>
    <filter-name>change-headers-filter</filter-name>
    <url-pattern>*.css</url-pattern>
  </filter-mapping>
  <filter-mapping>
    <filter-name>change-headers-filter</filter-name>
    <url-pattern>*.gif</url-pattern>
  </filter-mapping>
  <filter-mapping>
    <filter-name>change-headers-filter</filter-name>
    <url-pattern>*.js</url-pattern>
  </filter-mapping>
  <filter-mapping>
    <filter-name>change-headers-filter</filter-name>
    <url-pattern>*.png</url-pattern>
  </filter-mapping>
  -->

  <filter-mapping>
    <filter-name>suspicious-request-filter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <filter-mapping>
    <filter-name>diagnostic-name-filter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <filter-mapping>
    <filter-name>encoding-filter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <filter-mapping>
    <filter-name>compression-filter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <filter-mapping>
    <filter-name>authentication-filter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <filter-mapping>
    <filter-name>csrf-filter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
  <filter-mapping>
    <filter-name>plugins-filter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>

  <listener>
    <!-- Must be before WebAppMain in order to initialize the context before the first use of this class. -->
    <listener-class>jenkins.util.SystemProperties$Listener</listener-class>
  </listener>
  <listener>
    <listener-class>hudson.WebAppMain</listener-class>
  </listener>
  <listener>
    <listener-class>jenkins.JenkinsHttpSessionListener</listener-class>
  </listener>

  <!--
    JENKINS-1235 suggests containers interpret '*' as "all roles defined in web.xml"
    as opposed to "all roles defined in the security realm", so we need to list some
    common names in the hope that users will have at least one of those roles.
  -->
  <security-role>
    <role-name>admin</role-name>
  </security-role>
  <security-role>
    <role-name>user</role-name>
  </security-role>
  <security-role>
    <role-name>hudson</role-name>
  </security-role>

  <security-constraint>
    <web-resource-collection>
      <web-resource-name>Hudson</web-resource-name>
      <url-pattern>/loginEntry</url-pattern>
      <!--http-method>GET</http-method-->
    </web-resource-collection>
    <auth-constraint>
      <role-name>**</role-name>
    </auth-constraint>
  </security-constraint>
  
  <!-- Disable TRACE method with security constraint (copied from jetty/webdefaults.xml) -->
  <security-constraint>
    <web-resource-collection>
      <web-resource-name>Disable TRACE</web-resource-name>
      <url-pattern>/*</url-pattern>
      <http-method>TRACE</http-method>
    </web-resource-collection>
    <auth-constraint />
  </security-constraint>
  
  <security-constraint>
    <web-resource-collection>
      <web-resource-name>other</web-resource-name>
      <url-pattern>/*</url-pattern>
    </web-resource-collection>
    <!-- no security constraint --> 
  </security-constraint>

  <login-config>
    <auth-method>FORM</auth-method>
    <form-login-config>
      <form-login-page>/login</form-login-page>
      <form-error-page>/loginError</form-error-page>
    </form-login-config>
  </login-config>


  <!-- if specified, this value is used as the Hudson home directory -->
  <env-entry>
    <env-entry-name>HUDSON_HOME</env-entry-name>
    <env-entry-type>java.lang.String</env-entry-type>
    <env-entry-value></env-entry-value>
  </env-entry>

  <!-- configure additional extension-content-type mappings -->
  <mime-mapping>
    <extension>xml</extension>
    <mime-type>application/xml</mime-type>
  </mime-mapping>
  <!--mime-mapping> commenting out until this works out of the box with JOnAS. See  http://www.nabble.com/Error-with-mime-type%2D-%27application-xslt%2Bxml%27-when-deploying-hudson-1.316-in-jonas-td24740489.html
    <extension>xsl</extension>
    <mime-type>application/xslt+xml</mime-type>
  </mime-mapping-->
  <mime-mapping>
    <extension>log</extension>
    <mime-type>text/plain</mime-type>
  </mime-mapping>
  <mime-mapping>
    <extension>war</extension>
    <mime-type>application/octet-stream</mime-type>
  </mime-mapping>
  <mime-mapping>
    <extension>ear</extension>
    <mime-type>application/octet-stream</mime-type>
  </mime-mapping>
  <mime-mapping>
    <extension>rar</extension>
    <mime-type>application/octet-stream</mime-type>
  </mime-mapping>
  <mime-mapping>
    <extension>webm</extension>
    <mime-type>video/webm</mime-type>
  </mime-mapping>

  <error-page>
    <exception-type>java.lang.Throwable</exception-type>
    <location>/oops</location>
  </error-page>

  <session-config>
    <cookie-config>
      <!-- See https://www.owasp.org/index.php/HttpOnly for the discussion of this topic in OWASP -->
      <http-only>true</http-only>
    </cookie-config>
    <!-- Tracking mode is managed by WebAppMain.FORCE_SESSION_TRACKING_BY_COOKIE_PROP -->
  </session-config>
</web-app>

提取某个单个字段:

# coding=utf-8
"""
    作者:gaojs
    功能:
    新增功能:
    日期:2022/6/2 17:12
"""
import xml.dom.minidom


dom = xml.dom.minidom.parse('web.xml')
root = dom.documentElement
bond_list = root.getElementsByTagName('filter-name')

print(bond_list[0].firstChild.data)

运行结果:

image-1654161545688

批量提取某个标签值,并将其写入文本:

# coding=utf-8
"""
    作者:gaojs
    功能:
    新增功能:
    日期:2022/6/2 17:12
"""
import xml.dom.minidom


dom = xml.dom.minidom.parse('web.xml')
root = dom.documentElement
filter_list = root.getElementsByTagName('filter-name')

# print(filter_list[0].firstChild.data)

for bond in filter_list:
    s = bond.firstChild.data
    print(s)
    with open('filter_result.txt', 'a') as fin:
        fin.write(s + '\n')

文件结果:

image-1654161710019

2.第二种:正则提取xml指定内容方法

with open('web.xml', mode='r') as fin:
    test = fin.read()
    result = re.findall('<filter-name>(.*?)</filter-name>', test)
    for key in result:
        print(key)
        with open('array/filter_result.txt', 'a') as f:
            f.write(key + '\n')

结果:

image-1655457019912

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