java unzip ant

java解压缩zip文件，依赖ant jar包，没乱码


import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.Enumeration;

import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipFile;

public class ZipFileUtil {
public static void unZip(String zipFileName, String destDir) {
File unzipFile = new File(zipFileName);
if (destDir == null || destDir.trim().length() == 0) {
destDir = unzipFile.getParent();
}

ZipFile zipFile = null;
try {
zipFile = new ZipFile(unzipFile, "GBK");
Enumeration entries = zipFile.getEntries();
while(entries.hasMoreElements()) {
ZipEntry entry = (ZipEntry) entries.nextElement();
File destFile = new File(destDir, entry.getName());

if (entry.isDirectory()) {// 是目录，则创建之
destFile.mkdirs();
} else {// 是文件
// 如果指定文件的父目录不存在,则创建之.
File parent = destFile.getParentFile();
if (parent != null && !parent.exists()) {
parent.mkdirs();
}

//执行解压
InputStream inputStream = zipFile.getInputStream(entry);
FileOutputStream fileOut = new FileOutputStream(destFile);
byte[] buf = new byte[1024];
int readedBytes;
while ((readedBytes = inputStream.read(buf)) > 0) {
fileOut.write(buf, 0, readedBytes);
}
fileOut.close();
inputStream.close();
}
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
if(zipFile != null){
zipFile.close();
}
} catch (Exception e) {
}
}
}

public static void main(String[] args) {
String inFile = "D:/test测试.zip";
String dir = "D:/log/out";
unZip(inFile, dir);
}
}