複数のファイルをzipに圧縮(zipファイル操作大全)
2010 ワード
String[] fileNames = {"11.txt","22.txt"};
ZipOutputStream zos = new ZipOutputStream(new FileOutputStream("tomorrow.zip"));
byte[] buff = new byte[1024];
for(int i = 0;i < fileNames.length ; i++)
{
FileInputStream is = new FileInputStream(fileNames[i]);
zos.putNextEntry(new ZipEntry(fileNames[i])); //
int len = 0;
while ((len = is.read(buff)) > 0 )
{
zos.write(buff, 0, len);
}
zos.closeEntry(); //
is.close();
}
zos.close();
2.
ZipFile zf = new ZipFile(new File("tomorrow.zip"));
for(Enumeration<ZipEntry> entrys = (Enumeration<ZipEntry>)zf.entries() ; entrys.hasMoreElements();)
{
String zipEnteyName = entrys.nextElement().getName();
System.out.println(zipEnteyName);
}
3. ZIP
ZipInputStream ziStream = new ZipInputStream(new FileInputStream("tomorrow.zip"));
//
ZipFile zFile = new ZipFile(new File("tomorrow.zip"));
for (Enumeration<ZipEntry> entries = (Enumeration<ZipEntry>)zFile.entries();entries.hasMoreElements();)
{
ZipEntry entry = ziStream.getNextEntry();
if ( null == entry)
{
break;
}
String name = entry.getName();
System.out.println(name);
FileOutputStream os = new FileOutputStream(name);
int len = 0;
byte[] buff = new byte[1024];
while ((len = ziStream.read(buff)) > 0)
{
os.write(buff, 0, len);
}
ziStream.closeEntry();
os.close();
}
ziStream.close();