Java解析xml文件时会抛出“The encoding declaration is required in
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org.jdom2.input.JDOMParseException: Error on line 1: The encoding declaration is required in the text declaration. at org.jdom2.input.sax.SAXBuilderEngine.build(SAXBuilderEngine.java:232) at org.jdom2.input.sax.SAXBuilderEngine.build(SAXBuilderEngine.java:253) at org.jdom2.input.SAXBuilder.build(SAXBuilder.java:1091) at com.imooc.jdomtest.JDOMTest.main(JDOMTest.java:26)Caused by: org.xml.sax.SAXParseException: The encoding declaration is required in the text declaration. at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:195) at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:174) at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:388) at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1411) at com.sun.org.apache.xerces.internal.impl.XMLScanner.scanXMLDeclOrTextDecl(XMLScanner.java:515) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanXMLDeclOrTextDecl(XMLDocumentFragmentScannerImpl.java:951) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$XMLDeclDriver.next(XMLDocumentScannerImpl.java:815) at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:648) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:140) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:452) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:807) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:737) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:107) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1205) at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:522) at org.jdom2.input.sax.SAXBuilderEngine.build(SAXBuilderEngine.java:217) ... 3 more |
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packagecom.imooc.jdomtest;importjava.io.FileInputStream;importjava.io.FileNotFoundException;importjava.io.IOException;importjava.io.InputStream;importjava.io.InputStreamReader;importjava.util.List;importorg.jdom2.Attribute;importorg.jdom2.Document;importorg.jdom2.Element;importorg.jdom2.JDOMException;importorg.jdom2.input.SAXBuilder;importcom.imooc.entity.Book;publicclassJDOMTest{ /** *@paramargs */ publicstaticvoidmain(String[]args){ //SAXBuildersaxBuilder=newSAXBuilder();//创建一个输入流InputStreamin; try{ in=newFileInputStream("src/res/books.xml"); InputStreamReaderisr=newInputStreamReader(in,"UTF-8"); Documentdocument=saxBuilder.build(isr);ElementrootElement=document.getRootElement();ListbookList=rootElement.getChildren();//进行解析for(Elementbook:bookList){ BookbookEntity=newBook(); System.out.println("====开始解析第"+(bookList.indexOf(book)+1)+"本书==="); ListattrList=book.getAttributes(); for(Attributeattr:attrList){ StringattrName=attr.getName(); StringattrValue=attr.getValue(); System.out.println("属性名:"+attrName+"----属性值"+attrValue); if(attrName.equals("id")){ bookEntity.setId(attrValue); } } ListbookChilds=book.getChildren(); for(Elementchild:bookChilds){ System.out.println("节点名"+child.getName()+"-----节点值"+child.getValue()); } System.out.println("====结束解析第"+(bookList.indexOf(book)+1)+"本书==="); } }catch(FileNotFoundExceptione){ //TODOAuto-generatedcatchblock e.printStackTrace(); }catch(JDOMExceptione){ //TODOAuto-generatedcatchblock e.printStackTrace(); }catch(IOExceptione){ //TODOAuto-generatedcatchblock e.printStackTrace(); } }} |
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