The schema parser will generate exceptions which should help you troubleshoot the problem.
架构解析器将生成异常，它们应该有助于您诊断问题。
The problem is, however, that SAX is a read-only, sequential parser.
然而，问题是 SAX 是一个只读的、连续的解析器。
Fortunately, it's easy to avoid this problem entirely by using an XML parser.
所幸的是，使用xml解析器很容易避免这种问题。
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