Java实现压缩与解压缩ZIP
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class Zip {
static final int BUFFER = 2048;
public static void main(String argv[]) {
try {
BufferedInputStream origin = null;
FileOutputStream dest = new FileOutputStream("E:\\test\\myfiles.zip");
ZipOutputStream out = new ZipOutputStream(new BufferedOutputStream(
dest));
byte data[] = new byte[BUFFER];
File f = new File("e:\\test\\a\\");
File files[] = f.listFiles();
for (int i = 0; i < files.length; i++) {
FileInputStream fi = new FileInputStream(files[i]);
origin = new BufferedInputStream(fi, BUFFER);
ZipEntry entry = new ZipEntry(files[i].getName());
out.putNextEntry(entry);
int count;
while ((count = origin.read(data, 0, BUFFER)) != -1) {
out.write(data, 0, count);
}
origin.close();
}
out.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
解压缩的
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
public class UnZip {
static final int BUFFER = 2048;
public static void main(String argv[]) {
try {
String fileName = "E:\\test\\myfiles.zip";
String filePath = "E:\\test\\";
ZipFile zipFile = new ZipFile(fileName);
Enumeration emu = zipFile.entries();
int i=0;
while(emu.hasMoreElements()){
ZipEntry entry = (ZipEntry)emu.nextElement();
//会把目录作为一个file读出一次，所以只建立目录就可以，之下的文件还会被迭代到。
if (entry.isDirectory())
{
new File(filePath + entry.getName()).mkdirs();
continue;
}
BufferedInputStream bis = new BufferedInputStream(zipFile.getInputStream(entry));
2021-02-28 09:09:18
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