求救出现异常
[Fatal Error] books.xml:1:21: 应该有伪属性名。
org.xml.sax.SAXParseException; systemId: file:///C:/Users/79873/workspace/xmlTest/books.xml; lineNumber: 1; columnNumber: 21; 应该有伪属性名。
at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:257)
at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:339)
at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:177)
at xmlTest1.xmldemo.main(xmldemo.java:25)
NodeList nodelist=document.getElementsByTagName("book");这是二十五行的内容
