Jenkinsfile ().parseText(Xml_file)不适用于XmlParser节点名称

Question

从一些XML文件中提取一些值是必需的。从Jenkinsfile中触发提取。下面的代码在我的Jenkinsfile中运行良好：

    def xml_file_contents = new XmlParser().parseText(xml_file)
    def value_i_need_to_extract = xml_file_contents.children()[4].children()[0].children()[0].children()[0].text().toString()

但是，解析的XML文件稍后可能会被修改，因此通过XML节点名而不是通过children()方法进行遍历将是一个更好的主意。然而，每次我应用这样的东西时：

    def value_i_need_to_extract = xml_file_contents.nodename.nodename.nodename.nodename.text().toString()

我收到以下错误：

    org.jenkinsci.plugins.scriptsecurity.sandbox.RejectedAccessException: No such field found: field groovy.util.Node remote

我尝试过使用不同的XML文件和不同的节点名称遍历节点名称，但结果总是错误。

尽管我已经批准了Jenkins进程内脚本审批所需的所有安全功能，但仍会出现此错误。

问题说明示例：

代码A：

def remote_repo = xml_file_contents.children()[3].children()[0].children()[0].children()[0]
echo 'Remote repository is:' + remote_repo.toString()

输出A：

Remote repository is:remote[attributes={}; value=[http://LAPTOP/svn/localrepo/app/component/RC]]

代码B：

def remote_repo = xml_file_contents.children()[3].children()[0].children()[0].children()[0].text()
echo 'Remote repository is:' + remote_repo.toString()

输出B：

Remote repository is:http://LAPTOP/svn/localrepo/app/component/RC

代码C：

def remote_repo = xml_file_contents.children()[3].children()[0].children()[0].remote.text()

输出C：

org.jenkinsci.plugins.scriptsecurity.sandbox.RejectedAccessException: No such field found: field groovy.util.Node remote

你知道这种行为的可能原因吗？有没有办法通过节点名遍历XML？

示例XML文件：

    <?xml version='1.1' encoding='UTF-8'?>
    <project>
      <description>Just a sample build job</description>
      <keepDependencies>false</keepDependencies>
      <properties>
        <hudson.plugins.jira.JiraProjectProperty plugin="jira@3.0.11"/>
      </properties>
      <scm class="hudson.scm.SubversionSCM" plugin="subversion@2.12.2">
        <locations>
          <hudson.scm.SubversionSCM_-ModuleLocation>
            <remote>http://LAPTOP/svn/localrepo/subfolder/componentname/RC</remote>
            <credentialsId>justsomeid</credentialsId>
            <local>.</local>
            <depthOption>infinity</depthOption>
            <ignoreExternalsOption>true</ignoreExternalsOption>
            <cancelProcessOnExternalsFail>true</cancelProcessOnExternalsFail>
          </hudson.scm.SubversionSCM_-ModuleLocation>
        </locations>
        <excludedRegions></excludedRegions>
        <includedRegions></includedRegions>
        <excludedUsers></excludedUsers>
        <excludedRevprop></excludedRevprop>
        <excludedCommitMessages></excludedCommitMessages>
        <workspaceUpdater class="hudson.scm.subversion.UpdateUpdater"/>
        <ignoreDirPropChanges>false</ignoreDirPropChanges>
        <filterChangelog>false</filterChangelog>
        <quietOperation>true</quietOperation>
      </scm>
      <canRoam>true</canRoam>
      <disabled>false</disabled>
      <blockBuildWhenDownstreamBuilding>false</blockBuildWhenDownstreamBuilding>
      <blockBuildWhenUpstreamBuilding>false</blockBuildWhenUpstreamBuilding>
      <triggers/>
      <concurrentBuild>false</concurrentBuild>
      <builders/>
      <publishers>
        <hudson.plugins.ws__cleanup.WsCleanup plugin="ws-cleanup@0.37">
          <patterns class="empty-list"/>
          <deleteDirs>false</deleteDirs>
          <skipWhenFailed>false</skipWhenFailed>
          <cleanWhenSuccess>true</cleanWhenSuccess>
          <cleanWhenUnstable>true</cleanWhenUnstable>
          <cleanWhenFailure>true</cleanWhenFailure>
          <cleanWhenNotBuilt>true</cleanWhenNotBuilt>
          <cleanWhenAborted>true</cleanWhenAborted>
          <notFailBuild>false</notFailBuild>
          <cleanupMatrixParent>false</cleanupMatrixParent>
          <externalDelete></externalDelete>
          <disableDeferredWipeout>false</disableDeferredWipeout>
        </hudson.plugins.ws__cleanup.WsCleanup>
      </publishers>
      <buildWrappers/>
    </project>

Answer 1

XmlParser should not be used，因为它不序列化(它只在主节点内工作，主节点不应该有任何执行器)。

不幸的是，Jenkins没有提供像JSON和YAML那样的可序列化步骤(参见Pipeline Utility Steps)。

如果您能够将XML转换为JSON或YAML，那么您将能够适当地使用readJSON/readYaml步骤，并且您也可以更轻松地导航它们。如果这是不可能的，您应该考虑编写一个小实用程序来帮助您处理XML文件:这样，您就可以在不是主节点的代理上运行管道脚本。

Answer 2

下面的代码可以在我的Groovy控制台上运行：

def xml_file = """<?xml version='1.1' encoding='UTF-8'?>
    <project>
      <description>Just a sample build job</description>
      <keepDependencies>false</keepDependencies>
      <properties>
        <hudson.plugins.jira.JiraProjectProperty plugin="jira@3.0.11"/>
      </properties>
      <scm class="hudson.scm.SubversionSCM" plugin="subversion@2.12.2">
        <locations>
          <hudson.scm.SubversionSCM_-ModuleLocation>
            <remote>http://LAPTOP/svn/localrepo/subfolder/componentname/RC</remote>
            <credentialsId>justsomeid</credentialsId>
            <local>.</local>
            <depthOption>infinity</depthOption>
            <ignoreExternalsOption>true</ignoreExternalsOption>
            <cancelProcessOnExternalsFail>true</cancelProcessOnExternalsFail>
          </hudson.scm.SubversionSCM_-ModuleLocation>
        </locations>
        <excludedRegions></excludedRegions>
        <includedRegions></includedRegions>
        <excludedUsers></excludedUsers>
        <excludedRevprop></excludedRevprop>
        <excludedCommitMessages></excludedCommitMessages>
        <workspaceUpdater class="hudson.scm.subversion.UpdateUpdater"/>
        <ignoreDirPropChanges>false</ignoreDirPropChanges>
        <filterChangelog>false</filterChangelog>
        <quietOperation>true</quietOperation>
      </scm>
      <canRoam>true</canRoam>
      <disabled>false</disabled>
      <blockBuildWhenDownstreamBuilding>false</blockBuildWhenDownstreamBuilding>
      <blockBuildWhenUpstreamBuilding>false</blockBuildWhenUpstreamBuilding>
      <triggers/>
      <concurrentBuild>false</concurrentBuild>
      <builders/>
      <publishers>
        <hudson.plugins.ws__cleanup.WsCleanup plugin="ws-cleanup@0.37">
          <patterns class="empty-list"/>
          <deleteDirs>false</deleteDirs>
          <skipWhenFailed>false</skipWhenFailed>
          <cleanWhenSuccess>true</cleanWhenSuccess>
          <cleanWhenUnstable>true</cleanWhenUnstable>
          <cleanWhenFailure>true</cleanWhenFailure>
          <cleanWhenNotBuilt>true</cleanWhenNotBuilt>
          <cleanWhenAborted>true</cleanWhenAborted>
          <notFailBuild>false</notFailBuild>
          <cleanupMatrixParent>false</cleanupMatrixParent>
          <externalDelete></externalDelete>
          <disableDeferredWipeout>false</disableDeferredWipeout>
        </hudson.plugins.ws__cleanup.WsCleanup>
      </publishers>
      <buildWrappers/>
    </project>"""

def xml_file_contents = new XmlParser().parseText(xml_file)
println xml_file_contents.scm.locations[0].children()[0].remote.text()

输出：

http://LAPTOP/svn/localrepo/subfolder/componentname/RC