zip文件 压缩与解压缩
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zip 工具类
sourceFilePath = D:\tomcat_portal\bin\portalMS\portalPackage\NJGD
File fileDir = new File(sourceFilePath);
doZip(fileDir);
public static void doZip(File file)
{
List<File> fileList = new ArrayList<File>();
List<File> allFiles = (ArrayList<File>)searchFiles(file.getPath(),
fileList);
Object[] fileArray = allFiles.toArray();
BufferedInputStream in = null;
FileInputStream fis = null;
ZipOutputStream zos = null;
FileOutputStream fos = null;
try
{
fos = new FileOutputStream(file.getParent() + File.separator
+ file.getName() + ".zip");
zos = new ZipOutputStream(new BufferedOutputStream(fos, BUFFER));
zos.setLevel(9);
byte[] data = new byte[BUFFER];
for (int i = 0; i < fileArray.length; i++)
{
// 设置压缩文件入口entry,为被读取的文件创建压缩条目
File tempFile = new File(fileArray[i].toString());
String rootStr = file.getPath();
String entryStr = null;
// entry以相对路径的形式设置。以文件夹C:\temp例如temp\test.doc或者test.xls
// 如果设置不当，会出现拒绝访问等错误
// 分别处理单个文件/目录的entry
if (rootStr.equals(tempFile.getPath()))
{
entryStr = tempFile.getName();
}
else
{
entryStr = tempFile.getPath()
.substring((rootStr + File.separator).length());
}
log(entryStr);
ZipEntry entry = new ZipEntry(entryStr);
zos.putNextEntry(entry);
fis = new FileInputStream(tempFile);
in = new BufferedInputStream(fis, BUFFER);
int count;
while ((count = in.read(data, 0, BUFFER)) != -1)
{
zos.write(data, 0, count);
}
}
}
catch (Exception ex)
{
ex.printStackTrace();
}
finally
{
try
{
if (fos != null)
{
in.close();
}
if (fis != null)
{
zos.close();
}
if (in != null)
{
in.close();
}
if (zos != null)
{
zos.close();
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
public static List<File> searchFiles(String sourceFilePath,
List<File> fileList)
{
File fileDir = new File(sourceFilePath);
if (fileDir.isDirectory())
{
File[] subfiles = fileDir.listFiles();
for (int i = 0; i < subfiles.length; i++)
{
searchFiles(subfiles[i].getPath(), fileList);
}
}
else
{
fileList.add(fileDir);
}
return fileList;
}
package com.xxxx.dhm.portalMS.common.util;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.Adler32;
import java.util.zip.CheckedInputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
import java.util.zip.ZipOutputStream;
import org.apache.commons.compress.archivers.ArchiveException;
import org.apache.commons.compress.archivers.ArchiveStreamFactory;
import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
import org.apache.commons.compress.archivers.zip.ZipArchiveOutputStream;
import org.apache.commons.compress.utils.IOUtils;
import com.xxxx.dhm.portalMS.common.Constants;
import com.xxxx.dhm.portalMS.common.DebugLogHelper;
public class ZIPUtil
{
private static final int BUFFER = 8192;
private static final DebugLogHelper logger = new DebugLogHelper(ZIPUtil.class);
public static final String DEF_FILE_FORMAT = "zip";
public static final String DEF_ENCODING = "GBK";
private static void log(String msg)
{
logger.excepFuncDebugLog(msg);
}
/**
*
* 压缩工具方法,支持中文
* @param rootPath 需要压缩的文件/目录路径
* @param zipPath 压缩后的路径
* @throws ArchiveException
* @throws IOException
* @return void
* @exception throws
*/
public static void file2Zip(String rootPath, String zipPath)
{
ZipArchiveOutputStream zos = null;
try
{
zos = (ZipArchiveOutputStream)new ArchiveStreamFactory().createArchiveOutputStream(DEF_FILE_FORMAT,
new FileOutputStream(zipPath));
// or new ZipArchiveOutputStream(new FileOutputStream(path))
zos.setEncoding(DEF_ENCODING);
File file = new File(rootPath);
if (!file.exists())
{
return;
}
File[] files = null;
if (file.isDirectory())
{
files = file.listFiles();
}
else
{
files = new File[1];
files[0] = file;
}
zipFile(zos, files, rootPath);
}
catch (Exception ae)
{
ae.printStackTrace();
}
finally
{
if (null != zos)
{
try
{
zos.close();
}
catch (IOException ioe)
{
ioe.printStackTrace();
}
}
}
}
/**
*
* 循环压缩
* @param zos
* @param files
* @param rootPath
* @throws IOException
* @return void
* @exception throws
*/
private static void zipFile(ZipArchiveOutputStream zos, File[] files,
String rootPath) throws IOException
{
ZipArchiveEntry ze = null;
for (File f : files)
{
if (!f.exists())
{
continue;
}
ze = new ZipArchiveEntry(getEntryName(f, rootPath));// 获取每个文件相对路径,作为在ZIP中路径
zos.putArchiveEntry(ze);
// folder
if (ze.isDirectory())
{
zos.closeArchiveEntry();
zipFile(zos, f.listFiles(), rootPath);
}
// file
else
{
FileInputStream fis = new FileInputStream(f);
IOUtils.copy(fis, zos, 1024 * 10);
fis.close();
zos.closeArchiveEntry();
}
}
}
/**
*
* 得到文件在压缩包中的路径
* @param f
* @param rootPath
* @return
* @return String
* @exception throws
*/
private static String getEntryName(File f, String rootPath)
{
String entryName;
String fPath = f.getAbsolutePath();
if (fPath.indexOf(rootPath) != -1)
{
entryName = fPath.substring(rootPath.length() + 1);
}
else
{
entryName = f.getName();
}
if (f.isDirectory())
{
// "/"后缀表示entry是文件夹
entryName += Constants.FILE_SEPARATOR.getStringValue();
}
return entryName;
}
private static String getFileName(String filePath)
{
int index = filePath.indexOf(".");
return filePath.substring(0, index);
}
public static void zip(String sourceFilePath)
{
File fileDir = new File(sourceFilePath);
if (fileDir.exists())
{
log(fileDir.getPath() + " Starting Zip ...");
long startTime = System.currentTimeMillis();
doZip(fileDir);
long endTime = System.currentTimeMillis();
long costTime = endTime - startTime;
log("Zip Success!");
log("use time -- " + costTime + " millsec!");
}
else
{
log("can't find the File!");
}
}
public static void unZip(String zipFilePath)
{
File fileDir = new File(zipFilePath);
if (fileDir.exists())
{
log(fileDir.getPath() + " Starting UnZip ...");
long startTime = System.currentTimeMillis();
doUnZip(fileDir);
long endTime = System.currentTimeMillis();
long costTime = endTime - startTime;
log("UnZip Success!");
log("use time -- " + costTime + " millsec!");
}
else
{
log("can't find the File!");
}
}
public static void doZip(File file)
{
List<File> fileList = new ArrayList<File>();
List<File> allFiles = (ArrayList<File>)searchFiles(file.getPath(),
fileList);
Object[] fileArray = allFiles.toArray();
BufferedInputStream in = null;
FileInputStream fis = null;
ZipOutputStream zos = null;
FileOutputStream fos = null;
try
{
fos = new FileOutputStream(file.getParent() + File.separator
+ file.getName() + ".zip");
zos = new ZipOutputStream(new BufferedOutputStream(fos, BUFFER));
zos.setLevel(9);
byte[] data = new byte[BUFFER];
for (int i = 0; i < fileArray.length; i++)
{
// 设置压缩文件入口entry,为被读取的文件创建压缩条目
File tempFile = new File(fileArray[i].toString());
String rootStr = file.getPath();
String entryStr = null;
// entry以相对路径的形式设置。以文件夹C:\temp例如temp\test.doc或者test.xls
// 如果设置不当，会出现拒绝访问等错误
// 分别处理单个文件/目录的entry
if (rootStr.equals(tempFile.getPath()))
{
entryStr = tempFile.getName();
}
else
{
entryStr = tempFile.getPath()
.substring((rootStr + File.separator).length());
}
log(entryStr);
ZipEntry entry = new ZipEntry(entryStr);
zos.putNextEntry(entry);
fis = new FileInputStream(tempFile);
in = new BufferedInputStream(fis, BUFFER);
int count;
while ((count = in.read(data, 0, BUFFER)) != -1)
{
zos.write(data, 0, count);
}
}
}
catch (Exception ex)
{
ex.printStackTrace();
}
finally
{
try
{
if (fos != null)
{
in.close();
}
if (fis != null)
{
zos.close();
}
if (in != null)
{
in.close();
}
if (zos != null)
{
zos.close();
}
}
catch (Exception e)
{
e.printStackTrace();
}
}
}
public static void doUnZip(File file)
{
try
{
final int BUFFER = 2048;
BufferedOutputStream dest = null;
FileInputStream fis = new FileInputStream(file);
CheckedInputStream checksum = new CheckedInputStream(fis,
new Adler32());
ZipInputStream zis = new ZipInputStream(new BufferedInputStream(
checksum));
ZipEntry entry;
while ((entry = zis.getNextEntry()) != null)
{
log("Extracting: " + entry);
int count;
byte[] data = new byte[BUFFER];
log("unzip to " + getFileName(file.getPath()));
FileOutputStream fos = new FileOutputStream(
getFileName(file.getPath()) + File.separator
+ newDir(file, entry.getName()));
dest = new BufferedOutputStream(fos, BUFFER);
while ((count = zis.read(data, 0, BUFFER)) != -1)
{
dest.write(data, 0, count);
}
dest.flush();
dest.close();
}
zis.close();
System.out.println("Checksum: " + checksum.getChecksum().getValue());
}
catch (Exception e)
{
e.printStackTrace();
}
}
public static List<File> searchFiles(String sourceFilePath,
List<File> fileList)
{
File fileDir = new File(sourceFilePath);
if (fileDir.isDirectory())
{
File[] subfiles = fileDir.listFiles();
for (int i = 0; i < subfiles.length; i++)
{
searchFiles(subfiles[i].getPath(), fileList);
}
}
else
{
fileList.add(fileDir);
}
return fileList;
}
@SuppressWarnings("static-access")
private static String newDir(File file, String entryName)
{
String rootDir = getFileName(file.getPath());
log("root：" + rootDir);
int index = entryName.lastIndexOf("\\");
String dirStr = new File(rootDir).getParent();
log(dirStr);
if (index != -1)
{
String path = entryName.substring(0, index);
log("new Dir：" + rootDir + file.separator + path);
boolean b = new File(rootDir + file.separator + path).mkdirs();
if (b)
{
logger.excepFuncDebugLog("Successfully created ...");
}
log("entry:" + entryName.substring(0, index));
}
else
{
boolean flag = new File(rootDir).mkdirs();
if (flag)
{
logger.excepFuncDebugLog("Successfully created ...");
}
log("entry:" + entryName);
}
return entryName;
}
/**
*
* zip文件解压,支持中文
* @param zipFile zip文件
* @param baseDir 解压到的根目录
* @return
* @throws IOException
* @return boolean
* @exception throws
*/
public static boolean unZipSupportChinese(File zipFile, String baseDir)
throws IOException
{
DefUnZipHandler handler = new DefUnZipHandler(zipFile);
handler.setBaseDir(baseDir);
return handler.unZip();
}
}
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