ZipInputStream解压含有中文名称文件的zip包

1.重建zip包

新建一个自己的zip包(也就是自己建立一个package)，比如com.agile.zip，在这个包中把要用到的类从jdk的源码里放到这里，用eclipse可以很同快地完成这 个工作。需要所类 有:DeflaterOutputStream,InflaterInputStream,ZipConstants,ZipEntry,ZipInputStream,ZipOutputStream

上面这些类在放到com.aigle.zip包中后，在Eclipse中会显示出一些错误，这里要做得就是更改import以及其它一些工作，惟一的目的就是通过编译，不再出现编译错误。

2.修改ZipInputStream

ZipInputStream这个类中，需要修改getUTF8String这个方法，经过试验，用winRar压缩后的zip文件，其中的中文文件名是以gbk编码保存的，因此只需要在这个方法的前面加上

try {
String s = newString(b,off,len,"gbk");
return s;
} catch (UnsupportedEncodingExceptione) {
e.printStackTrace();
}
修改后的方法类似下面的代码:

private static String getUTF8String(byte[] b, intoff, int len) {
try {
String s = newString(b,off,len,"gbk");
return s;
} catch (UnsupportedEncodingExceptione) {
e.printStackTrace();
}
// First, count the number ofcharacters in the sequence
int count = 0;
int max = off + len;

...

...

}

3.去掉一些本地调用方法

原来的java.util.zip.ZipEntry里面，要加载本地库，在这里这些代码是没有用处的，去掉就可以了，而如果不去掉，会引起链接错误，很奇怪，这几个native方法我也没有找到在哪儿使用了，sun的jdk1.4.2里留着它们做什么呢？

static {
/* loadthe zip library */
java.security.AccessController.doPrivileged(
newsun.security.action.LoadLibraryAction("zip"));
initIDs();
}

然后就大功告成了。哈哈！

详细的代码见csdn的文章

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import com.glodon.zip.ZipEntry;
import com.glodon.zip.ZipInputStream;

import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;



/**
 * 解压ZIP文件
 * 
 * @author thinkpad
 * 
 */
public class TestExtZipFiles {

	/**
	 * 解压含有多个文件的ZIP包
	 * 
	 * @param zipFileName
	 * @param extPlace
	 */
	private static void extZipFileList(String zipFileName, String extPlace) {
		try {

			ZipInputStream in = new ZipInputStream(new FileInputStream(zipFileName));

			ZipEntry entry = null;

			while ((entry = in.getNextEntry()) != null) {

				String entryName = entry.getName().toLowerCase();

				if (entryName.endsWith(".xml")) {// 找到xml文件
					
					int i = entryName.lastIndexOf("/");
					
					entryName = entryName.substring(i+1);
					
					FileOutputStream os = new FileOutputStream(extPlace + entryName);

					// Transfer bytes from the ZIP file to the output file
					byte[] buf = new byte[1024];

					int len;

					while ((len = in.read(buf)) > 0) {
						os.write(buf, 0, len);
					}
					os.close();
					in.closeEntry();
					resolveXMLFile(extPlace + entryName);
					File f = new File(extPlace + entryName);
					if(f.exists()) {
						f.delete();
					}
					
				}
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
		System.out.println("解压文件成功 ");
	}

	public static void resolveXMLFile(String fileName) {
		
		DocumentBuilderFactory domfac = DocumentBuilderFactory.newInstance();

		try {
			DocumentBuilder dombuilder = domfac.newDocumentBuilder();
	
			InputStream is = new FileInputStream(fileName);

			Document doc = dombuilder.parse(is);
	
			Element root = doc.getDocumentElement();
	
			NodeList bidders = root.getChildNodes();
			
			if(bidders != null){
				 for(int i=0;i<bidders.getLength();i++){
				    //一条数据
				    Node bidder = bidders.item(i); 

                    if(bidder.getNodeType() == Node.ELEMENT_NODE){ 	
                        String PBRQ = bidder.getAttributes().getNamedItem("PBRQ").getNodeValue(); 
                        String JHJGSJ = bidder.getAttributes().getNamedItem("JHJGSJ").getNodeValue(); 
                        String JHKGSJ = bidder.getAttributes().getNamedItem("JHKGSJ").getNodeValue();
                        String ZGZH = bidder.getAttributes().getNamedItem("ZGZH").getNodeValue();
                        String ZLJE = bidder.getAttributes().getNamedItem("ZLJE").getNodeValue();
                        String ZGJ = bidder.getAttributes().getNamedItem("ZGJ").getNodeValue();
                        String XMFBQK = bidder.getAttributes().getNamedItem("XMFBQK").getNodeValue();
                        String ZLBZ = bidder.getAttributes().getNamedItem("ZLBZ").getNodeValue();
                        String AQWMSGF = bidder.getAttributes().getNamedItem("AQWMSGF").getNodeValue();
                        String CSXMF = bidder.getAttributes().getNamedItem("CSXMF").getNodeValue();
                        String XMJLID = bidder.getAttributes().getNamedItem("XMJLID").getNodeValue();
                        String ABBM = bidder.getAttributes().getNamedItem("ABBM").getNodeValue();
                        String TJZB = bidder.getAttributes().getNamedItem("TJZB").getNodeValue();
                        String PM = bidder.getAttributes().getNamedItem("PM").getNodeValue();
                        String FBHJ = bidder.getAttributes().getNamedItem("FBHJ").getNodeValue();
                        String FB = bidder.getAttributes().getNamedItem("FB").getNodeValue();
                        String WXB = bidder.getAttributes().getNamedItem("WXB").getNodeValue();
                        String XMJL = bidder.getAttributes().getNamedItem("XMJL").getNodeValue();
                        String TBBJ = bidder.getAttributes().getNamedItem("TBBJ").getNodeValue();
                        String ZLCN = bidder.getAttributes().getNamedItem("ZLCN").getNodeValue();
                        String GQ = bidder.getAttributes().getNamedItem("GQ").getNodeValue();
                        String Signin = bidder.getAttributes().getNamedItem("Signin").getNodeValue();
                        String BidderName = bidder.getAttributes().getNamedItem("BidderName").getNodeValue();
                        String BidderID = bidder.getAttributes().getNamedItem("BidderID").getNodeValue();
                        String JCDJH = bidder.getAttributes().getNamedItem("JCDJH").getNodeValue();				                        
	                    System.out.println(PBRQ+","+JHJGSJ+","+JHKGSJ+","+ZGZH+","+ZLJE+","+ZGJ+","+XMFBQK+","+ZLBZ+","+AQWMSGF+","+CSXMF+","+XMJLID+","+ABBM+","+TJZB+","+PM+","+FBHJ+","+FB+","+WXB+","+XMJL+","+TBBJ+","+
	                    		ZLCN+","+GQ+","+Signin+","+BidderName+","+BidderID+","+JCDJH);
	               }
		       }
			}
	    } catch (Exception e) {
	           e.printStackTrace();
	    }
	}
			

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		//zip的文件位置，和解压之后的xml的位置
		extZipFileList("E:\\1010111_BHWJ.zip","E:\\1010111\\");
	}

}