1.壓縮
package com.zhuifeng.common.util;
import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.Properties;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;
import org.apache.tools.zip.ZipEntry;
import org.apache.tools.zip.ZipOutputStream;
/**
*
* @author zhuifeng
*
* 文件壓縮工具類
*/
public class ZipTool {
/**
* inputFileName 輸入一個文件夾
* zipFileName 輸出一個壓縮文件夾
* basedir 輸入文件路徑
*/
private static void compress(File file, ZipOutputStream out, String basedir) {
/* 判斷是目錄還是文件 */
if (file.isDirectory())
{
// System.out.println("壓縮:" + basedir + file.getName());
compressDirectory(file, out, basedir);
}
else
{
// System.out.println("壓縮:" + basedir + file.getName());
compressFile(file, out, basedir);
}
}
/** 壓縮一個目錄 */
/**
* inputFileName 輸入一個文件夾
* zipFileName 輸出一個壓縮文件夾
* basedir 輸入位置
*/
private static void compressDirectory(File dir, ZipOutputStream out, String basedir) {
if (!dir.exists()) return;
File[] files = dir.listFiles();
for (int i = 0; i < files.length; i++)
{
/* 遞歸 */
compress(files[i], out, basedir + dir.getName() + "/");
}
}
/** 壓縮一個文件 */
/**
* inputFileName 輸入一個文件夾
* zipFileName 輸出一個壓縮文件夾
* basedir 輸入位置
*/
private static void compressFile(File file, ZipOutputStream out, String basedir) {
if (!file.exists()) {
return;
}
try {
BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));
ZipEntry entry = new ZipEntry(basedir + file.getName());
Properties pro=System.getProperties();
String osName=pro.getProperty("os.name");
if("Linux".equals(osName)||"linux".equals(osName)){
entry.setUnixMode(644);
}
out.putNextEntry(entry);
int count;
byte data[] = new byte[8192];
while ((count = bis.read(data, 0, 8192)) != -1) {
out.write(data, 0, count);
}
bis.close();
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
*
* @param srcPathName 原輸入文件
* @param zipFileName zip輸入文件
*/
public static void zip(String srcPathName, String zipFileName,String basedir) {
File file = new File(srcPathName);
File zipFile = new File(zipFileName);
if (!file.exists()) throw new RuntimeException(srcPathName + "不存在!");
try {
FileOutputStream fileOutputStream = new FileOutputStream(zipFile);
CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream, new CRC32());
ZipOutputStream out = new ZipOutputStream(cos);
Properties pro=System.getProperties();
String osName=pro.getProperty("os.name");
if("Linux".equals(osName)||"linux".equals(osName)){
out.setEncoding("GBK");//設置文件名編碼方式
}else{
out.setEncoding(System.getProperty("sun.jnu.encoding"));//設置文件名編碼方式
}
compress(file, out, basedir);
out.close();
}
catch (Exception e) {
throw new RuntimeException(e);
}
}
public static void main(String[] args) {
zip("D:\\test\\20161009154206000","D:\\test\\2.zip","");
}
}
2.解壓
package com.zhuifeng.common.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;
/**
*
* @author zhuifeng
* 解壓工具類
*
*/
public class UnZip {
/**
*
* @param zipFilePath zip路徑
* @param destDir 解壓後存放的位置
*/
public static void unzip(String zipFilePath, String destDir) {
System.setProperty("sun.zip.encoding",
System.getProperty("sun.jnu.encoding"));
File dir = new File(destDir);
if (!dir.exists())
dir.mkdirs();
FileInputStream fis = null;
ZipInputStream zis = null;
byte[] buffer = new byte[1024];
try {
fis = new FileInputStream(zipFilePath);
zis = new ZipInputStream(fis);
ZipEntry ze = zis.getNextEntry();
while (ze != null) {
String fileName = ze.getName();
File newFile = new File(destDir + File.separator + fileName);
new File(newFile.getParent()).mkdirs();
FileOutputStream fos = new FileOutputStream(newFile);
int len;
while ((len = zis.read(buffer)) > 0) {
fos.write(buffer, 0, len);
}
fos.close();
zis.closeEntry();
ze = zis.getNextEntry();
}
if (zis != null) {
zis.closeEntry();
zis.close();
}
if (fis != null) {
fis.close();
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
if (fis != null) {
fis.close();
}
if (zis != null) {
zis.closeEntry();
zis.close();
}
} catch (IOException e) {
}
}
}
}