java file to inputstream以及New Document From InputStream讀取和寫入檔案操作執行個體代碼

A. http://www.java2s.com/Code/Java/XML/NewDocumentFromInputStream.htm

New Document From InputStream

    import java.io.IOException;import java.io.InputStream;import java.io.StringReader;import java.io.StringWriter;import java.text.ParseException;import java.text.SimpleDateFormat;import java.util.ArrayList;import java.util.Date;import java.util.Iterator;import javax.xml.parsers.DocumentBuilder;import javax.xml.parsers.DocumentBuilderFactory;import javax.xml.parsers.ParserConfigurationException;import javax.xml.transform.Transformer;import javax.xml.transform.TransformerException;import javax.xml.transform.TransformerFactory;import javax.xml.transform.dom.DOMSource;import javax.xml.transform.stream.StreamResult;import org.w3c.dom.Document;import org.w3c.dom.Element;import org.w3c.dom.Node;import org.w3c.dom.NodeList;import org.xml.sax.InputSource;import org.xml.sax.SAXException;/******************************************************************************* * Copyright (C) 2007 Google Inc. *  * Licensed under the Apache License, Version 2.0 (the "License"); you may not * use this file except in compliance with the License. You may obtain a copy of * the License at *  * http://www.apache.org/licenses/LICENSE-2.0 *  * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations under * the License. ******************************************************************************//** * Various XML utilities. *  * @author simonjsmith, ksim * @version 1.1 - ksim - March 6th, 2007 - Added functions regarding streaming * @version 1.2 - ksim - March 10th, 2007 - Added functions regarding DOM *          manipulation */public class Utils {  public static Document newDocumentFromInputStream(InputStream in) {    DocumentBuilderFactory factory = null;    DocumentBuilder builder = null;    Document ret = null;    try {      factory = DocumentBuilderFactory.newInstance();      builder = factory.newDocumentBuilder();    } catch (ParserConfigurationException e) {      e.printStackTrace();    }    try {      ret = builder.parse(new InputSource(in));    } catch (SAXException e) {      e.printStackTrace();    } catch (IOException e) {      e.printStackTrace();    }    return ret;  }}

B. http://www.zuidaima.com/share/1758442014903296.htm

java通過InputStream讀取和寫入檔案操作執行個體代碼

1. File to InputStream

1	File file = new File("file.xml");

2	InputStream inputStream = new FileInputStream(file);

2.InputStream to File

01	InputStream inputStream = new FileInputStream("file.xml");

02

03	OutputStream  outputStream = new FileOutputStream("file-new.xml");

04

05

int