本文介绍了萨克斯 - ExpatParser $ ParseException的的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧! 问题描述 29岁程序员,3月因学历无情被辞! 我在做一个Android应用程序读取XML互联网。此应用程序使用SAX解析XML。这是我的code解析的部分:I'm making an Android application that reads an XML Internet. This application uses SAX to parse XML. This is my code for the part of parsing:public LectorSAX(String url){ try{ SAXParserFactory spf=SAXParserFactory.newInstance(); SAXParser sp = spf.newSAXParser(); DefaultHandler lxmlr=new LibraryXMLReader() ; sp.parse(url, lxmlr); nodo=((LibraryXMLReader)lxmlr).getNodoActual(); }catch(ParserConfigurationException e){ System.err.println("Error de parseo en LectorSAX.java: "+e); }catch(SAXException e){ System.err.println("Error de sax LectorSAX.java: " + e); } catch (IOException e){ System.err.println("Error de io LectorSAX.java: " + e); }}问题是,的SAXException发生。异常消息如下:The problem is that SAXException occurs. The exception message is as follows: org.apache.harmony.xml.ExpatParser $ ParseException的:在4号线,列  42:没有良好的(标记无效)不过,如果我把同样的code在一个普通的Java SE应用程序,此异常不会发生,一切工作正常。However, if I put the same code in a normal Java SE application, this exception does not occur and everything works fine.为什么同样code正常工作,在Java SE应用程序,而不是一个Android?而另一方面,如何解决这个问题呢?Why the same code works fine in a Java SE application, not an Android?. On the other hand, How to solve the problem?.感谢您的帮助。问候。推荐答案这可能是一个字符编码的问题。正如你所看到的,无效的令牌错误点到线#4。在这条线,你可以找到一种急性(Meteorología的)和波浪号(西班牙的)。XML标头显示的 ISO-8859-15 编码值。由于它比因此UTF或ISO-8859-1编码不常见的,这可能会导致一个错误,当SAXParser的连接,并尝试使用系统默认字符集的字节的内容转换成字符。This could be a character encoding problem.As you can see, the invalid token error points to the line #4.In this line, you can find an acute (Meteorología) and a tilde (España).The XML header shows a ISO-8859-15 encoding value. As it's less common than UTFs or ISO-8859-1 encodings, this could result in a error when the SAXParser connects and try to convert the byte content into chars using your system default charset.然后,你需要告诉SAXParser的哪个字符集使用。一种方法这样做,是为了传递一个的InputSource ,代替的URL,给解析方法。作为一个例子:Then, you'll need to tell the SAXParser which charset to use. A way to do so, is to pass an InputSource, instead of the URL, to the parse method. As an example:SAXParserFactory factory = SAXParserFactory.newInstance();SAXParser parser = factory.newSAXParser();InputSource is = new InputSource(url);is.setEncoding("ISO-8859-15");DefaultHandler lxmlr=new LibraryXMLReader() ;sp.parse(is, lxmlr); 编辑:看来,Android的虚拟机不支持这种编码,抛出一个 org.apache.harmony.xml.ExpatParser $ ParseException的:在第1行,列0:不详编码的异常由于ISO-8859-15它主要是与ISO-8859-1兼容,除了一些特殊字符(如你所见这里),解决方法是改变 ISO-8859-15 值 ISO-8859-1 的该setEncoding方法,迫使解析器使用不同但兼容的字符编码​​:It seems that Android VM does not support this encoding, throwing a org.apache.harmony.xml.ExpatParser$ParseException: At line 1, column 0: unknown encoding exception.As ISO-8859-15 it's mainly compatible with ISO-8859-1, except some specific characters (as you can see here), a workaround is changing the ISO-8859-15 value to ISO-8859-1 at the setEncoding method, forcing the parser to use a different but compatible charset encoding:is.setEncoding("ISO-8859-1");,因为它似乎,因为Android不支持声明的字符集,它使用默认值(UTF-8),因此解析器不能使用XML声明来选择apropiate编码。As it seems, as Android doesn't support the declared charset, it uses its default (UTF-8) and hence the parser can't use the XML declaration to choose the apropiate encoding. 这篇关于萨克斯 - ExpatParser $ ParseException的的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持! 上岸,阿里云!
09-05 13:00