网上有关压缩和解压zip包的博文一大堆，我随便找了一个。看了看，依照自己的须要改动了一下，与各位分享一下，希望各位大神指正：
package com.wangpeng.utill; 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.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipException;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream; /**
* @author wangpeng
*/
public class ToolOfZip { /**
* 解压zip包
* @param inputPath 被解压的zip包的路径
* @param targetPath 被解压到的文件夹
* @param isClear 是否清楚已有文件夹
*/
public static void unZip(String inputPath,String targetPath, boolean isClear) {
try {
if (null == targetPath || "".equals(targetPath)) {
targetPath = inputPath.substring(0,inputPath.lastIndexOf("."));
} ZipFile zipFile = new ZipFile(new File(inputPath));
Enumeration<? extends ZipEntry> entrys = zipFile.entries(); while (entrys.hasMoreElements()) {
ZipEntry entry = entrys.nextElement();
String name = entry.getName();// aaa\testdir\xxxxx\eee.txt
String strTargetPath=targetPath+"/"+name;
String strTargetDir=strTargetPath.substring(0, strTargetPath.lastIndexOf(File.separator));
if (entry.isDirectory()) {
File dir = new File(strTargetPath);
if (!dir.exists()) {
dir.mkdirs();
}
} else {
File dir = new File(strTargetDir);
if (!dir.exists()) {
dir.mkdirs();
} File file = new File(strTargetPath);
if (file.exists() && isClear) {
file.delete();
} if (!file.exists()) {
InputStream in = zipFile.getInputStream(entry);
ToolOfFile.copyFile(in, file.getAbsolutePath());
}
}
}
} catch (ZipException ex) {
ex.printStackTrace();
} catch (IOException ex) {
ex.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
} /**
* 创建ZIP文件
*
* @param sourcePath
* 文件或文件夹路径
* @param zipPath
* 生成的zip文件存在路径（包含文件名称）
*/
public static void createZip(String sourcePath, String zipPath) {
FileOutputStream fos = null;
ZipOutputStream zos = null;
try {
fos = new FileOutputStream(zipPath);
zos = new ZipOutputStream(fos);
writeZip(new File(sourcePath), "", zos);
} catch (FileNotFoundException e) {
e.printStackTrace();
} finally {
try {
if (zos != null) {
zos.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
} private static void writeZip(File inFile, String parentPath,
ZipOutputStream zipOutStream) {
if (inFile.exists()) {
if (inFile.isDirectory()) {
parentPath += inFile.getName() + File.separator;
File[] files = inFile.listFiles();
for (File file : files) {
writeZip(file, parentPath, zipOutStream);
}
} else {
FileInputStream fileInStream = null;
try {
fileInStream = new FileInputStream(inFile);
ZipEntry entry = new ZipEntry(parentPath + inFile.getName());
zipOutStream.putNextEntry(entry); byte[] buff = new byte[1024];
int len;
while ((len = fileInStream.read(buff)) != -1) {
zipOutStream.write(buff, 0, len);
zipOutStream.flush();
} } catch (FileNotFoundException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (fileInStream != null) {
fileInStream.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
} public static void main(String[] args) {
String oldPath = "F:/test/ddd/";
String newPath = "F:/test/ccc.zip";
// ToolOfZip.createZip(oldPath, newPath);
//ToolOfZip.unZip(newPath, null, false);
System.out.println();
System.out.println("---------ok----------");
}
}