Java建立Zip压缩文件
Contents
本文是关于实现Java建立Zip压缩文件的代码实例
import java.io.*;
import java.util.zip.*;
class Zip {
public static void main(String[] args) throws IOException {
byte[] b = new byte[512];
ZipOutputStream zout = new ZipOutputStream(System.out);
for (int i = 0; i < args.length; i++) {
InputStream in = new FileInputStream(args[i]);
ZipEntry e = new ZipEntry(args[i].replace(File.separatorChar, '/'));
zout.putNextEntry(e);
int len = 0;
while ((len = in.read(b)) != -1) {
zout.write(b, 0, len);
}
zout.closeEntry();
print(e);
}
zout.close();
}
public static void print(ZipEntry e) {
PrintStream err = System.err;
err.print("added " + e.getName());
if (e.getMethod() == ZipEntry.DEFLATED) {
long size = e.getSize();
if (size > 0) {
long csize = e.getCompressedSize();
long ratio = ((size - csize) * 100) / size;
err.println(" (deflated " + ratio + "%)");
} else {
err.println(" (deflated 0%)");
}
} else {
err.println(" (stored 0%)");
}
}
}