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\\");
}
}