为什么我会收到“内存不足"的提示? Perl的XML :: Simple错误? [英] Why am I getting an "Out of memory" error with Perl's XML::Simple?

问题描述

已:

大家好，

我有一个这样的XML文件，

I have a XML file like this,

        <message>
            <c1>
                <rrcConnectionSetupComplete>
                    <rrc-TransactionIdentifier>2</rrc-TransactionIdentifier>
                    <criticalExtensions>
                        <c1>
                            <rrcConnectionSetupComplete-r8>
                                <selectedPLMN-Identity> 1 </selectedPLMN-Identity>
                                <dedicatedInfoNAS> 07410109014290112345671000028020000f0 </dedicatedInfoNAS>
                            </rrcConnectionSetupComplete-r8>
                        </c1>
                    </criticalExtensions>
                </rrcConnectionSetupComplete>
            </c1>
        </message>

我正在使用这样的Perl代码访问xml文件中的数据(我应该坚持这种访问格式)

I am using Perl code like this to access the data in xml file (i should stick on to this format of accessing)

#!/usr/bin/perl

use strict;

use XML::Simple;

my $xml = new XML::Simple;

my $data = $xml->XMLin("uL-DCCH-Message.xml");

my $rrc_trans_identifier = $data->{'c1'}->{'rrcConnectionSetupComplete'}->{'rrc-TransactionIdentifier'};
print "rrc_trans_id :: $rrc_trans_identifier\n";

my $selected_plmn_id = $data->{c1}->{rrcConnectionSetupComplete}->{criticalExtensions}->{c1}->{'rrcConnectionSetupComplete-r8'}->{'selectedPLMN-Identity'};
print "plmn identity :: $selected_plmn_id\n";

my $rrc_dedicated_info_nas = $data->{c1}->{rrcConnectionSetupComplete}->{criticalExtensions}->{c1}->{'rrcConnectionSetupComplete-r8'}->{dedicatedInfoNAS};
print "dedicated info nas :: $rrc_dedicated_info_nas\n";

产生的输出是

rrc_trans_id :: 2
plmn identity ::  1
dedicated info nas ::  07410109014290112345671000028020000f0

使用XML :: Simple的Perl代码在较小的XML文件上正常工作(如上面的输出所示).

Perl code using XML::Simple is working fine for smaller XML files (as shown in the above output).

但是，如果XML文件很大，则XML :: Simple无法处理，并且显示错误消息Ran内存不足.

But If XML file is large, then XML::Simple cannot handle and it is showing error message Ran out of memory.

我的问题是，我还可以使用其他任何XML解析器，以便以与上图所示类似的方式访问XML文件中的元素吗?

My question is, Is there any other XML Parsers i can use, so that i can access the elements in XML file in the similar manner as shown above ???

如果有任何其他解析器可用，任何人都可以通过遵循我对XML :: Simple遵循的相同约定来举一个示例.

If there is any other parsers available, can any one give an example by following the same conventions i am following for XML::Simple..

请帮助我，我为此感到挣扎

Kindly help me, i am struggling with this

推荐答案

在

这将精确地输出您所追求的:

This outputs exactly what you were after:

rrc_trans_id :: 2
plmn identity ::  1 
dedicated info nas ::  07410109014290112345671000028020000f0 

重要

• 上面为您提供的示例工作，但是在 XML::Twig 取决于您的确切要求.

• Above works for the example you provided but there are a few different ways you could achieve the same result in XML::Twig depending on what your exact requirements are.

请不要将这个问题的可接受答案分配给我！ Chas&尤金首先出现在现场，为您的问题提供了正确的答案，而布莱恩则给出了普遍存在的答案.

Please don't assign me with the accepted answer for this question! Chas & eugene were first on the scene with the correct answer to your problem and brian followed up with the ubiquitous answer.

/I3az/

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