XMLSchema 的解决方法不支持 maxOccurs 大于 5000

2022-01-10 00:00:00 xml-parsing xsd java xerces jaxp

我的问题是解析具有大于 5000 的 maxOccurs 元素(但不是 unbounded)的 XSD 架构.

My problem is with parsing an XSD Schema that has elements with maxOccurs larger than 5000 (but not unbounded).

这实际上是 Xerces(我正在使用，版本 2.9.1)或 JAXP 中的一个已知问题，如下所述:http://bugs.sun.com/view_bug.do;jsessionid=85335466c2c1fc52f0245d20b2e?bug_id=4990915

This is actually a know issue in either Xerces (which I'm using, version 2.9.1) or JAXP, as described here: http://bugs.sun.com/view_bug.do;jsessionid=85335466c2c1fc52f0245d20b2e?bug_id=4990915

我已经知道，如果我将 XSD 中的 maxOccurs 数字从大于 5000 的数字更改为 unbounded 一切正常.可悲的是，这不是一个选项，就我而言(我不能干预 XSD 文件).

I already know that if I changed the maxOccurs numbers in my XSD from numbers larger than 5000 to unbounded all works well. Sadly, this is not an option in my case (I cannot meddle with the XSD file).

我的问题是:

有人知道 Xerces 中针对此问题的其他解决方法吗?或者
有人可以推荐另一个没有此限制的 XML 解析器吗?

谢谢！

推荐答案

我找到了一个不需要更改解析器的解决方案.

I have found a solution that doesn't require changing the parser.

有一个 FEATURE_SECURE_PROCESSING 功能将 maxOccurs 限制为 5000(以及其他几个).

There is a FEATURE_SECURE_PROCESSING feature which puts that 5000 limitation on maxOccurs (along with several others).

这里是描述限制的文档:http://docs.oracle.com/javase/7/docs/technotes/guides/xml/jaxp/JAXP-Compatibility_160.html#JAXP_security

And here is the document describing the limitations: http://docs.oracle.com/javase/7/docs/technotes/guides/xml/jaxp/JAXP-Compatibility_160.html#JAXP_security

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