Question

实际上我遇到了使用Rails 3.2.1在jruby-1.6.7中使用REXML :: Document解析XML String的问题。

我有一个像

这样的字符串

<?xml version="1.0" encoding="US-ASCII"?><a><b>Something</b></a>

在执行

时曾经使用jruby-1.6.5.1

doc = REXML::Document.new(xml_string)

截至目前，它失败了：

failed - can't convert NilClass into String
backtrace of deliver! org/jruby/RubyIconv.java:207:in `initialize'
org/jruby/RubyIconv.java:391:in `conv'
/opt/jruby/lib/ruby/1.8/rexml/encodings/ICONV.rb:12:in `encode'
/opt/jruby/lib/ruby/1.8/rexml/source.rb:55:in `encoding='
/opt/jruby/lib/ruby/1.8/rexml/source.rb:45:in `initialize'
/opt/jruby/lib/ruby/1.8/rexml/source.rb:11:in `create_from'
/opt/jruby/lib/ruby/1.8/rexml/parsers/baseparser.rb:121:in `stream='
/opt/jruby/lib/ruby/1.8/rexml/parsers/baseparser.rb:110:in `initialize'
/opt/jruby/lib/ruby/1.8/rexml/parsers/treeparser.rb:9:in `initialize'
/opt/jruby/lib/ruby/1.8/rexml/document.rb:227:in `build'
/opt/jruby/lib/ruby/1.8/rexml/document.rb:43:in `initialize'

将标题更改为：

<?xml version="1.0" encoding="utf-8"?><a><b>Something</b></a>

一切都很好。我错过了系统上的lib，这是一个已知的问题吗？ US-ASCII无效吗？

Answer 1

FWIW - 不是答案，但我也从JRuby 1.6.5 / Rails 3.1.3转到1.6.7 / Rails 3.2.3并且我使用SimpleXML尝试解析此xml时出现相同的“新”错误： / p>

&lt;?xml version=&quot;1.0&quot; encoding=&quot;ISO-8859-1&quot;?&gt;
&lt;simulacao&gt;&lt;ApoliceAuto Sistema=&quot;GISU&quot; Utilizador=&quot;USER&quot; 
ReferenciaExterna=&quot;16&quot; Ramo=&quot;90&quot; 
TipoSeguro=&quot;10&quot;&gt;&lt;Packs&gt;&lt;Pack 
codPack=&quot;1&quot;&gt;&lt;ValorAnualPack&gt;240.89&lt;/ValorAnualPack&gt;&lt;
ValorSemestralPack&gt;124.39&lt;/ValorSemestralPack&gt;&lt;
ValorContinuadoSemestralPack&gt;
118.84&lt;/ValorContinuadoSemestralPack&gt;&lt;ValorTrimestralPack&gt;66.12&lt;
/ValorTrimestralPack&gt;&lt;ValorContinuadoTrimestralPack&gt;60.57&lt;
/ValorContinuadoTrimestralPack&gt;&lt;ValorMensalPack&gt;27.28&lt;/ValorMensalPack&gt;&lt;
ValorContinuadoMensalPack&gt;21.73&lt;/ValorContinuadoMensalPack&gt;&lt;Mensagens/&gt;&lt;
/Pack&gt;&lt;/Packs&gt;&lt;/ApoliceAuto&gt;&lt;/simulacao&gt;

看起来像这样（通过SO解析器:)）

＆lt;？xml version =“1.0”encoding =“ISO-8859-1”？＆gt; ＆lt; simulacao＆gt;＆lt; ApoliceAuto Sistema =“GISU”Utilizador =“USER”ReferenciaExterna =“16”Ramo =“90”TipoSeguro =“10”＆gt;＆lt; Packs＆gt;＆lt; Pack codPack =“1”＆gt;＆lt; ValorAnualPack＆GT; 240.89＆LT; / ValorAnualPack＆GT;＆LT; ValorSemestralPack＆GT; 124.39＆LT; / ValorSemestralPack＆GT;＆LT; ValorContinuadoSemestralPack＆GT; 118.84＆LT; / ValorContinuadoSemestralPack＆GT;＆LT; ValorTrimestralPack＆GT; 66.12＆LT; / ValorTrimestralPack＆GT;＆LT; ValorContinuadoTrimestralPack＆GT; 60.57＆LT; / ValorContinuadoTrimestralPack＆GT;＆LT; ValorMensalPack＆GT; 27.28＆LT; / ValorMensalPack＆GT;＆LT; ValorContinuadoMensalPack＆GT; 21.73＆LT; / ValorContinuadoMensalPack＆GT;＆LT; Mensagens /＆GT;＆LT; /包装＆GT;＆LT; /包＆GT;＆LT; / ApoliceAuto＆GT;＆LT; / simulacao＆GT;

REXML :: Document.new无法使用US-ASCII编码的XML进行解析

1 个答案: