apache ant 解压缩zip

cfsky

　　使用apache ant.tools.zip来打包和解压缩。
　　



 package zip;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream;
import org.apache.commons.compress.utils.IOUtils;
import org.apache.tools.ant.util.FileUtils;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;
import org.apache.tools.zip.ZipOutputStream;
/**
*
* @author Administrator cph
*
*/

public class ZipUtils {
ZipFile zipFile = null;
ZipEntry zipEntry = null;
File temp = null;
private OutputStream out = null;
private BufferedOutputStream bos = null;
private ZipOutputStream zos = null;
/**
*
* @param zipName   需要解压的文件
* @param zipPath解压存储路径
* @throws Exception
*/
public void unZip(String zipName,String zipPath) throws Exception{
FileOutputStream fos;
InputStream is;
String path1 = "";
String tempPath = "";
if(!new File(zipPath).exists()){
new File(zipPath).mkdir();
}
zipFile = new ZipFile(zipName);
temp = new File(zipPath);
String strPath = temp.getAbsolutePath();
Enumeration<Object> enu = zipFile.getEntries();
while(enu.hasMoreElements()){
zipEntry = (ZipEntry) enu.nextElement();
path1 = zipEntry.getName();
if(zipEntry.isDirectory()){
tempPath = strPath+File.separator+path1;
File dir = new File(tempPath);
dir.mkdirs();
continue;
}
else{
is = zipFile.getInputStream(zipEntry);
BufferedInputStream bis = new BufferedInputStream(is);
path1 = zipEntry.getName();
tempPath = strPath+File.separator+path1;
String subdirtemp = path1;
for(int i=0;i<subdirtemp.length();i++){
if(subdirtemp.substring(i, i+1).equalsIgnoreCase("\\")){
String tempstr = strPath+File.separator+subdirtemp.substring(0,i);
File subdir = new File(tempstr);
if(!subdir.exists()){
subdir.mkdir();
}
}
}
fos = new FileOutputStream(tempPath);
BufferedOutputStream bos = new BufferedOutputStream(fos);
//int c ;
//while((c = bis.read())!=-1){
//bos.write(c);
//}
IOUtils.copy(bis, bos);
bis.close();
bos.close();
}
}
}
public void close() throws IOException{
this.zos.flush();
this.zos.close();
this.bos.flush();
this.bos.close();
this.out.flush();
this.out.close();
}

/**
*
* @param zipfileName打包后文件的名称，含路径
* @param filePath需要打包的文件夹或者文件的路径
* @param pathName打包到pathName文件夹下
* @throws Exception
*/
public void doZip(String zipfileName,String filePath,String pathName) throws Exception{
File f = new File(zipfileName);
this.out = new FileOutputStream(f);
this.bos = new BufferedOutputStream(out);
this.zos = new ZipOutputStream(bos);
this.zos.setEncoding("GBK");
File file = new File(filePath);
if (!"".equals(pathName) && null != pathName) {
pathName = pathName + File.separator;
} else {
pathName = f.getName().substring(0, f.getName().length() - 4) + File.separator;
}
doZip(zos,filePath,pathName);
close();
}
private void doZip(ZipOutputStream zos, String file, String pathName) throws IOException {
File file2zip = new File(file);
if (file2zip.isFile()) {
zos.putNextEntry(new ZipEntry(pathName + file2zip.getName()));
IOUtils.copy(new FileInputStream(file2zip.getAbsolutePath()), zos);
zos.closeEntry();
} else {
File[] files = file2zip.listFiles();
if (files.length < 1 || files == null) {
return;
} else {
for (File f : files) {
if (f.isDirectory()) {
doZip(zos, f.getAbsolutePath(), pathName+f.getName()+File.separator);
} else {
zos.putNextEntry(new ZipEntry(pathName + f.getName()));
IOUtils.copy(new FileInputStream(f.getAbsolutePath()), zos);
zos.closeEntry();
}
}
}
}
}
public static void main(String[] args) throws Exception {
ZipUtils tzp = new ZipUtils();
//tzp.doZip("c:/aaab.zip", "d:/a/111.ppt", "");
tzp.unZip("c:\\aaab.zip", "d:\\abc\\");
}
}