标签：xml
在用SaxParser做XML解析的时候碰到如下错误信息：
java.lang.ArrayIndexOutOfBoundsException: 100 at com.sun.org.apache.xerces.internal.impl.XMLEntityScanner.scanLiteral(XMLEntityScanner.java:1145) at com.sun.org.apache.xerces.internal.impl.XMLScanner.scanAttributeValue(XMLScanner.java:996) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanAttribute(XMLNSDocumentScannerImpl.java:438) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:254) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2778) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:606) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:117) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:510) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:848) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:777) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:649) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl.parse(SAXParserImpl.java:333) at javax.xml.parsers.SAXParser.parse(SAXParser.java:195) ..
究其原因是JDK中的XML解析有bug，出错的xml结构中有一个包含100多个换行的tag属性，导致了如上的错误。网上查了一下已经有人发现过这个问题https://bugs.openjdk.java.net/browse/JDK-8080085
，该问题应该在最新的JDK8中已经修复，有待验证。
解决方法：预处理unmarshal的字符串，将多个换行符替换为空字符串
str.replaceAll("[\n|\r\n]{100,}", "")java.lang.ArrayIndexOutOfBoundsException: 100
标签：xml
原文地址：http://jupiterbee.blog.51cto.com/3364619/1720149
