压缩流

package class1;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class ZipoutputStreamDemo01 {
public static void main(String[] args) throws Exception {
File file = new File("d:" + File.separator + "mldn.txt");
File zipFile = new File("d:" + File.separator + "mldn.zip") ;
InputStream input = new FileInputStream(file) ;
ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(zipFile));
zipOut.putNextEntry(new ZipEntry(file.getName()));
zipOut.setComment("www.mldnjava.cn"); 

zipOut.setComment("www.;mldnjava.cn") ;
int temp = 0;
while((temp = input.read()) != -1) {
zipOut.write(temp) ;
}
input.close();
zipOut.close();
}

}

压缩文件夹

package class1;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
public class ZipoutputStreamDemo01 {
public static void main(String[] args) throws Exception {
File file = new File("d:" + File.separator +"mldn" );
File zipFile = new File("d:" + File.separator + "mldn.zip") ;
InputStream input = null;
ZipOutputStream zipOut = null;
zipOut = new ZipOutputStream(new FileOutputStream(zipFile));

zipOut.setComment("www.mldnjava.cn");
if(file.isDirectory()) {
File lists[] = file.listFiles();
for (int i =0 ;i < lists.length; i++) {
input = new FileInputStream(lists[i]) ;
zipOut.putNextEntry(new ZipEntry(file.getName() + File.separator + lists[i].getName()));

int temp = 0 ;
while((temp = input.read()) != -1){
zipOut.write(temp);
}
input.close();
}
}
zipOut.close();
}
}