我试图解析一个HTML文档与声明的doctype使用过渡dtd,如下所示:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"“http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”>
当我在文档上执行Builder.build时,我得到以下异常:
java.io.IOException: Server returned HTTP response code: 503 for URL: http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1305)
at org.apache.xerces.impl.XMLEntityManager.setupCurrentEntity(Unknown Source)
at org.apache.xerces.impl.XMLEntityManager.startEntity(Unknown Source)
at org.apache.xerces.impl.XMLEntityManager.startDTDEntity(Unknown Source)
at org.apache.xerces.impl.XMLDTDScannerImpl.setInputSource(Unknown Source)
at org.apache.xerces.impl.XMLDocumentScannerImpl$DTDDispatcher.dispatch(Unknown Source)
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at nu.xom.Builder.build(Builder.java:1127)
at nu.xom.Builder.build(Builder.java:1019)
如果我删除了doc类型声明,它解析就好了 . 我可以从我的浏览器成功下载dtd,它告诉我该url是有效的 . 我不想删除doc类型声明 . 有没有办法告诉建设者不要下载dtd或提供备用dtd?
2 回答
快速查看Builder的javadoc,我想你可以通过构造函数提供EntityResolver,它需要XMLReader . 我会避免让解析器尽可能地从互联网上下载文件 .
这解决了这个问题: