perl – XML :: Dumper在输出中使用错误的哈希引用

发布时间：2020-12-16 06:15:22 所属栏目：大数据来源：网络整理

导读：我正在尝试使用 XML :: Dumper序列化以下数据结构 'options_settings' = { 'telnet.distinct.enable' = { 'text' = 'Option telnet.distinct.enable needs to be set to 'on' as of workaround for Bug 476803','severity' = '7' } },'EOS_details' = { '33

我正在尝试使用 XML :: Dumper序列化以下数据结构

'options_settings' => {
  'telnet.distinct.enable' => {
    'text' => 'Option telnet.distinct.enable needs to be set to 'on' as of
 workaround for Bug 476803','severity' => '7'
   }
 },'EOS_details' => {
  '338' => bless( {
    'info' => '<a href="https://support.netapp.com/info/communications/ECMP1110462.html " target="_blank">  CPC-0705-02 </a>','count' => '48','ASUP_id' => 'AE20121117202086','part' => 'ESH2 - X5511A-RC,X5511-RC-C','category' => 'I/O Module','EOS_date' => '06/02/2013','severity' => '8'
   },'EOSObject' ),

问题是当我用XML解析它到xml：Dumper它使用相同的内存地址进行2个单独的哈希引用：

<item key="338">
   <hashref blessed_package="EOSObject" memory_address="0x295b5758">
    <item key="ASUP_id">AE20121117165273</item>
    <item key="EOS_date">06/02/2013</item>
    <item key="category">I/O Module</item>
    <item key="count">48</item>
    <item key="info">&lt;a href=&quot;https://support.netapp.com/info/communications/ECMP1110462.html &quot; target=&quot;_blank&quot;&gt;  CPC-0705-02 &lt;/a&gt;</item>
    <item key="part">ESH2 - X5511A-RC,X5511-RC-C</item>
    <item key="severity">8</item>
   </hashref>
  </item>
 </hashref>
<item key="options_settings">
 <hashref memory_address="0x295b5320">
  <item key="telnet.distinct.enable">
   <hashref memory_address="0x295b5758">
   </hashref>
  </item>
 </hashref>
</item>

请注意memory_address =“0x295b5758”.

因此,当从文件读回时,option_settings哈希引用指向EOS对象：/

这是XML :: Dumper中的错误还是我做错了什么？使用最新的XML :: Dumper 0.81

附：
我试图在主脚本之外重现它,它的工作原理.
我仍然无法理解主脚本中数据是如何被破坏的.
这是使用XML :: Dumper的代码：

DEBUG("Before serialization: " . Data::Dumper::Dumper($result));
    my $dump = new XML::Dumper;
    my $dump_test = new XML::Dumper;
    my $test_xml = $dump_test->pl2xml ($result);
    DEBUG("After serialization in memory: " . Data::Dumper::Dumper($test_xml));
    $dump->pl2xml( $result,$filename );

结果打印正确. “options_settings”是单独的条目.在$test_xml中,它已经与EOS_details混淆了

解决方法

我试图复制你的问题而没有任何成功.

#!/usr/bin/perl -Tw

use strict;
use warnings;
use XML::Dumper;

my $eos = bless {
    'info'     => '<a href="https://support.netapp.com/info/communications/ECMP1110462.html " target="_blank">  CPC-0705-02 </a>','count'    => '48','ASUP_id'  => 'AE20121117202086','part'     => 'ESH2 - X5511A-RC,'severity' => '8'
    },'EOSObject';

my %data = (
    'options_settings' => {
        'telnet.distinct.enable' => {
            'text'     => 'Option telnet.distinct.enable needs to be set to 'on' as of
 workaround for Bug 476803','severity' => '7'
        }
    },'EOS_details' => { 338 => $eos }
);

print pl2xml( %data );

我的程序的输出：

<perldata>
 <hashref memory_address="0x253fb18">
  <item key="EOS_details">
   <hashref memory_address="0x2517e08">
    <item key="338">
     <hashref blessed_package="EOSObject" memory_address="0x24f9998">
      <item key="ASUP_id">AE20121117202086</item>
      <item key="EOS_date">06/02/2013</item>
      <item key="category">I/O Module</item>
      <item key="count">48</item>
      <item key="info">&lt;a href=&quot;https://support.netapp.com/info/communications/ECMP1110462.html &quot; target=&quot;_blank&quot;&gt;  CPC-0705-02 &lt;/a&gt;</item>
      <item key="part">ESH2 - X5511A-RC,X5511-RC-C</item>
      <item key="severity">8</item>
     </hashref>
    </item>
   </hashref>
  </item>
  <item key="options_settings">
   <hashref memory_address="0x2517688">
    <item key="telnet.distinct.enable">
     <hashref memory_address="0x2517598">
      <item key="severity">7</item>
      <item key="text">Option telnet.distinct.enable needs to be set to &apos;on&apos; as of
 workaround for Bug 476803</item>
     </hashref>
    </item>
   </hashref>
  </item>
 </hashref>
</perldata>

我倾向于认为你的计划有些不对劲.

（编辑：李大同）

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