使用zip压缩文件

package cc;
import java.io.BufferedInputStream;
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.ZipOutputStream;

public class Myzip {

private static  ZipOutputStream zos;
private static String path="E:/1";
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Myzip zip=new Myzip();
try {
zos=new ZipOutputStream(new FileOutputStream(new File("E:/myzip.zip")));     //zip输出流
System.out.println("compressing");
zip.compress(new File(path),path.substring(path.lastIndexOf("/")+1)); //需要压缩的文件
System.out.println("compress done");
zos.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}

private void compress(File file,String base) throws IOException {
// TODO Auto-generated method stub
if(file.exists()){
if(file.isDirectory()){ //目录
File[] f=file.listFiles();
zos.putNextEntry(new ZipEntry(base+"/"));
base=base.length()==0 ?"" : base+"/";
System.out.println(base);
for(int i=0;i<f.length;i++){
compress(f[i],base+f[i].getName());
}
}else{  //文件
BufferedInputStream bis=new BufferedInputStream(new FileInputStream(file));
if(base.length()>0){
zos.putNextEntry(new ZipEntry(base));
}
else{
zos.putNextEntry(new ZipEntry(base+file.getName()));
}
byte[] b=new byte[1024];
int len;
while((len=bis.read(b))!=-1){
zos.write(b);
}
bis.close();
}
}
}
}