用dom4j建立,修改XML文档,并解决格式化输出和中文

public XMLWriter(OutputStream out) throws UnsupportedEncodingException {        //System.out.println("In OutputStream");        this.format = DEFAULT_FORMAT;        this.writer = createWriter(out, format.getEncoding());        this.autoFlush = true;       namespaceStack.push(Namespace.NO_NAMESPACE);    }     public XMLWriter(OutputStream out, OutputFormat format) throws UnsupportedEncodingException {        //System.out.println("In OutputStream,OutputFormat");        this.format = format;        this.writer = createWriter(out, format.getEncoding());        this.autoFlush = true;       namespaceStack.push(Namespace.NO_NAMESPACE);    }

import java.io.File;import java.io.FileWriter;import java.util.Iterator;import java.util.List;import java.io.FileOutputStream;import org.dom4j.Attribute;import org.dom4j.Document;import org.dom4j.DocumentHelper;import org.dom4j.Element;import org.dom4j.io.OutputFormat;import org.dom4j.io.SAXReader;import org.dom4j.io.XMLWriter;public class firstClass {public int ModifyXMLFile(String fileName,String newFileName){int returnValue=0;try{SAXReader reader = new SAXReader();Document document = reader.read(new File(fileName));List list = document.selectNodes("books/book");Iterator iter=list.iterator();while(iter.hasNext()){Element e = (Element)iter.next();Attribute attribute = e.attribute("price");attribute.setText("55___FCKpd___1quot;);Element title = e.element("title");title.setText("北京天安门");//Element bookElement = (Element)iter.next();//System.out.println(bookElement.element("title").getText());//Attribute attribute = (Attribute)iter.next();//System.out.println(attribute.getValue());}try{XMLWriter writer = new XMLWriter(new FileOutputStream(newFileName));writer.write(document);writer.close();returnValue=1; }catch(Exception ex){ex.printStackTrace();}}catch(Exception ex){ex.printStackTrace();}return returnValue;}public int CreateXMLFile(String filename){int returnValue=0;Document document = DocumentHelper.createDocument();Element booksElement = document.addElement("books");booksElement.addComment("This is a test for dom4j");Element bookElement = booksElement.addElement("book");bookElement.addAttribute("price", "11___FCKpd___1quot;);Element bookTitle = bookElement.addElement("title");bookTitle.setText("星期五");bookElement = booksElement.addElement("book");bookElement.addAttribute("price", "33___FCKpd___1quot;);bookTitle = bookElement.addElement("title");bookTitle.setText("周三");try{XMLWriter writer = new XMLWriter(new FileOutputStream(filename));//输出中文错误new XMLWriter(new FileWriter(new File(filename)));writer.write(document);writer.close();returnValue=1;}catch(Exception ex){ex.printStackTrace();}return returnValue;}public static void main(String[] args) {// TODO Auto-generated method stubfirstClass fClass = new firstClass();fClass.CreateXMLFile("test.xml");fClass.ModifyXMLFile("test.xml","modify.xml");}}

需先导入jaxen-1.1.1.jar和dom4j-1.6.1.jar