使用SAX进行XML解析

本文介绍了使用SAX进行XML解析|如何处理特殊字符?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

我们有一个JAVA应用程序，可以从SAP中提取数据，进行解析并将其呈现给用户. 使用JCO连接器提取数据.

We have a JAVA application that pulls the data from SAP, parses it and renders to the users. The data is pulled using JCO connector.

最近我们被抛出了一个异常:

Recently we were thrown an exception:

org.xml.sax.SAXParseException: Character reference "&#00" is an invalid XML character.

因此，我们计划编写一个新的间接级别，其中在解析XML之前，将替换所有特殊/非法字符.

So, we are planning to write a new level of indirection where ALL special/illegal characters are replaced BEFORE parsing the XML.

我的问题是:

是否有任何现有的(开放源代码)实用程序可以代替XML中的非法字符?

或者如果我必须编写这样的实用程序，我应该如何处理它们?

为什么会引发上述异常?

谢谢.

推荐答案

听起来像是他们转义中的错误.根据上下文的不同，您最好只编写自己的使用真实XML库的XMLWriter类版本，而不是像SAP开发人员那样尝试编写自己的XML实用程序.

It sounds like a bug in their escaping. Depending on context you might be best off just writing your own version of their XMLWriter class that uses a real XML library rather than trying to write your own XML utilities like the SAP developers did.

或者，查看字符代码&#00，也许可以用空字符串替换掉所有字符:

Alternatively, looking at the character code, &#00, you might be able to get away with a replace all on it with the empty string:

String goodXml = badXml.replaceAll("�", "");