JAVA操作XML二(转换关系):String --document--xml --document--String

主要涉及转化:

从String转化为document再到xml

从xml转化为document再到String

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xml转化为string：

public static String xmlFile2String(String fileName) throws SAXException, IOException, ParserConfigurationException, TransformerFactoryConfigurationError, TransformerException

          {



                  DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();

                  InputSource inputSource = new InputSource(fileName);

                  Document document = documentBuilderFactory.newDocumentBuilder().parse(inputSource);

                  StringWriter sw = new StringWriter();

                  Transformer serializer = TransformerFactory.newInstance().newTransformer();

                  serializer.transform(new DOMSource(document), new StreamResult(sw));

                  return sw.toString();

          }

doc转化为string：

DOMSource domSource = new DOMSource(doc);

            StringWriter writer = new StringWriter();

            StreamResult result = new StreamResult(writer);

            TransformerFactory tf = TransformerFactory.newInstance();

            Transformer transformer = tf.newTransformer();

            transformer.transform(domSource, result);

            System.out.println( writer.toString());

doc转化为xml：

TransformerFactory tFactory = TransformerFactory.newInstance();

      Transformer transformer = tFactory.newTransformer();

      DOMSource source = new DOMSource(doc);

      FileOutputStream outStream = new FileOutputStream( "outFile.xml ");

      StreamResult result = new StreamResult(outStream);

      transformer.transform(source, result);

doc的初始化：

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

  DocumentBuilder db = null;

  try {

  db = dbf.newDocumentBuilder();

  } catch (ParserConfigurationException pce) {

  System.err.println(pce);

  System.exit(1);

  }

  Document doc = null;

  doc = db.newDocument();

用读文件的方式把xml变成string： 

FileInputStream in = new FileInputStream( "DataTest.xml ");

      BufferedInputStream bufferin=new BufferedInputStream(in);

      byte c[]= new byte[1000];

      int n=0;

      StringBuffer bs=new StringBuffer();

      while ((n=bufferin.read(c))!=-1)

      {String temp=new String (c,0,n);//

        bs.append(temp);

      }

xml转化为string：

public static String xmlFile2String(String fileName) throws SAXException, IOException, ParserConfigurationException, TransformerFactoryConfigurationError, TransformerException

          {

                  DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();

                  InputSource inputSource = new InputSource(fileName);

                  Document document = documentBuilderFactory.newDocumentBuilder().parse(inputSource);

                  StringWriter sw = new StringWriter();

                  Transformer serializer = TransformerFactory.newInstance().newTransformer();

                  serializer.transform(new DOMSource(document), new StreamResult(sw));

                  return sw.toString();

          }

doc转化为string：

DOMSource domSource = new DOMSource(doc);

            StringWriter writer = new StringWriter();

            StreamResult result = new StreamResult(writer);

            TransformerFactory tf = TransformerFactory.newInstance();

            Transformer transformer = tf.newTransformer();

            transformer.transform(domSource, result);

            System.out.println( writer.toString());

doc转化为xml：

TransformerFactory tFactory = TransformerFactory.newInstance();

      Transformer transformer = tFactory.newTransformer();

      DOMSource source = new DOMSource(doc);

      FileOutputStream outStream = new FileOutputStream( "outFile.xml ");

      StreamResult result = new StreamResult(outStream);

      transformer.transform(source, result);

doc的初始化：

DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();

  DocumentBuilder db = null;

  try {

  db = dbf.newDocumentBuilder();

  } catch (ParserConfigurationException pce) {

  System.err.println(pce);

  System.exit(1);

  }

  Document doc = null;

  doc = db.newDocument();

用读文件的方式把xml变成string：

FileInputStream in = new FileInputStream( "DataTest.xml ");

      BufferedInputStream bufferin=new BufferedInputStream(in);

      byte c[]= new byte[1000];

      int n=0;

      StringBuffer bs=new StringBuffer();

      while ((n=bufferin.read(c))!=-1)

      {String temp=new String (c,0,n);//

        bs.append(temp);

      }

String转成document的请看以下链接

http://www.blogjava.net/hopeshared/archive/2006/07/06/56919.aspx

有关经XSL文件转换为XML的请看:

http://blog.csdn.net/luweifeng1983/archive/2009/03/25/4022431.aspx


本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/luweifeng1983/archive/2009/03/26/4028250.aspx

转自：http://www.cnblogs.com/xianghang123/archive/2010/04/06/1705385.html