import java.io.*;
import java.util.*;
import java.util.zip.ZipOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
public class FileMgr {
public FileMgr() {
}
/**
* 压缩文件
* @param srcfile File[] 需要压缩的文件列表
* @param zipfile File 压缩后的文件
*/
public static void ZipFiles(java.io.File[] srcfile, java.io.File zipfile) {
byte[] buf = new byte[1024];
try {
// Create the ZIP file
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipfile));
// Compress the files
for (int i = 0; i < srcfile.length; i++) {
FileInputStream in = new FileInputStream(srcfile[i]);
// Add ZIP entry to output stream.
out.putNextEntry(new ZipEntry(srcfile[i].getName()));
// Transfer bytes from the file to the ZIP file
int len;
while ( (len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}
// Complete the entry
out.closeEntry();
in.close();
}
// Complete the ZIP file
out.close();
System.out.println("压缩完成.");
}
catch (IOException e) {
e.printStackTrace();
}
}
/**
* 解压缩
* @param zipfile File 需要解压缩的文件
* @param descDir String 解压后的目标目录
*/
public static void UnZipFiles(java.io.File zipfile, String descDir) {
try {
// Open the ZIP file
ZipFile zf = new ZipFile(zipfile);
for (Enumeration entries = zf.entries(); entries.hasMoreElements(); ) {
// Get the entry name
ZipEntry entry = ( (ZipEntry) entries.nextElement());
String zipEntryName = entry.getName();
InputStream in = zf.getInputStream(entry);
// System.out.println(zipEntryName);
OutputStream out = new FileOutputStream(descDir + zipEntryName);
byte[] buf1 = new byte[1024];
int len;
while ( (len = in.read(buf1)) > 0) {
out.write(buf1, 0, len);
}
// Close the file and stream
in.close();
out.close();
System.out.println("解压缩完成.");
}
}
catch (IOException e) {
e.printStackTrace();
}
}
}
本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/Jonthanoscar/archive/2007/08/09/1733812.aspx
测试方法（junit4测试）：
package lc.abin.lee.basic.zip.test;
import java.io.File;
import lc.abin.lee.basic.zip.FileMgr;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
public class testFileZip {
@BeforeClass
public static void init(){
System.out.println("initialize zip");
}
@Test
public void testCreateZIP(){
File in=new File("D:\\abin.zip");
File[] file=new File[]{in};
File zip=new File("D:\\abin.zip");
FileMgr mgr=new FileMgr();
mgr.ZipFiles(file, zip);
}
@Test
public void testParseZIP(){
File in=new File("D:\\abin.zip");
String filePath="D:/home/";
FileMgr mgr=new FileMgr();
mgr.UnZipFiles(in, filePath);
}
@AfterClass
public static void destroy(){
System.out.println("destroy zip");
}
}