docx文档的解压缩写法

package com; 

import static org.junit.Assert.assertEquals; 

import java.io.ByteArrayOutputStream; 
import java.io.File; 
import java.io.FileOutputStream; 
import java.io.IOException; 
import java.io.InputStream; 
import java.util.Enumeration; 
import java.util.zip.ZipEntry; 
import java.util.zip.ZipException; 
import java.util.zip.ZipFile; 
import java.util.zip.ZipOutputStream; 

import javax.xml.parsers.DocumentBuilderFactory; 
import javax.xml.parsers.ParserConfigurationException; 
import javax.xml.transform.Transformer; 
import javax.xml.transform.TransformerConfigurationException; 
import javax.xml.transform.TransformerException; 
import javax.xml.transform.TransformerFactory; 
import javax.xml.transform.dom.DOMSource; 
import javax.xml.transform.stream.StreamResult; 

import org.junit.Test; 
import org.w3c.dom.Document; 
import org.w3c.dom.Element; 
import org.xml.sax.SAXException; 

public class InputToword {  

    @Test public void modifyDocumentAndSave()throws IOException, ZipException,   
    SAXException,ParserConfigurationException,TransformerException,TransformerConfigurationException  
    {  
        //读取e盘下的hello.docx文档  
        ZipFile docxFile =new ZipFile(new File("e:\\hello.docx")); 
        //解压缩后获得里面和内容相关的xml，word文档是可以解压的，大家可以解压了试试  
        ZipEntry documentXML =docxFile.getEntry("word/document.xml"); 
        InputStream documentXMLIS =docxFile.getInputStream(documentXML); 
        DocumentBuilderFactory dbf =DocumentBuilderFactory.newInstance(); 
        Document doc =dbf.newDocumentBuilder().parse(documentXMLIS); 

        //获得文档里相关的节点  
        Element docElement = doc.getDocumentElement(); 
        assertEquals("w:document", docElement.getTagName()); 

        Element bodyElement = (Element)docElement.getElementsByTagName("w:body").item(0); 
        assertEquals("w:body", bodyElement.getTagName()); 

        Element pElement = (Element)bodyElement.getElementsByTagName("w:p").item(0); 
        assertEquals("w:p", pElement.getTagName()); 

        Element rElement = (Element)pElement.getElementsByTagName("w:r").item(0); 
        assertEquals("w:r", rElement.getTagName()); 

        Element tElement = (Element)rElement.getElementsByTagName("w:t").item(0); 
        assertEquals("w:t", tElement.getTagName()); 

        //查找文档中的Hello, from Office 2007!文字部分  
        assertEquals("Hello, from Office 2007!",tElement.getTextContent()); 
        //写入新的内容  
        tElement.setTextContent("哈哈,终于可以用java写word了，Hello, Office 2007, from Java6!"); 

        Transformer t =TransformerFactory.newInstance().newTransformer(); 
        ByteArrayOutputStream baos =new ByteArrayOutputStream(); 
        t.transform(new DOMSource(doc),  
        new StreamResult(baos)); 

        //创建新的要输出的word文档，按钮原来word文档的内容写入新的文档中。  
        ZipOutputStream docxOutFile = new ZipOutputStream(new FileOutputStream("e:\\response.docx")); 
        Enumeration entriesIter =docxFile.entries(); 
        while (entriesIter.hasMoreElements())  
        {  
            ZipEntry entry = (ZipEntry) entriesIter.nextElement(); 

            if (entry.getName().equals("word/document.xml"))  
            {  
                byte[] data = baos.toByteArray(); 
                docxOutFile.putNextEntry(new ZipEntry(entry.getName())); 
                docxOutFile.write(data, 0, data.length); 
                docxOutFile.closeEntry(); 
            }  
            else  
            {  
                InputStream incoming =docxFile.getInputStream(entry); 
                byte[] data = new byte[1024 * 16]; 
                int readCount =incoming.read(data, 0, data.length); 
                docxOutFile.putNextEntry(new ZipEntry(entry.getName())); 
                docxOutFile.write(data, 0, readCount); 
                docxOutFile.closeEntry(); 
            }  
        }  
        docxOutFile.close(); 

    }  

}  

可以将.docx文件看作是压缩文件。