?? zipper.java
字號:
import java.io.*;
import java.util.zip.*;
public class Zipper
{
public static void main(String[] args)
{
//
if (args.length < 2)
{
System.out.println("Usage: java Zipper [-d level] name.zip file1 file2...");
return;
}
String outputFile = args[0];
//默認最大限度的壓縮
int level = 9;
int start = 1;
if (args[0].equals("-d"))
{
try
{
level = Integer.parseInt(args[1]);
outputFile = args[2];
start = 3;
}
catch (Exception e)
{
System.out.println("Usage: java Zipper [-d level] name.zip file1 file2...");
return;
}
}
try
{
FileOutputStream fout = new FileOutputStream(outputFile);
//生成壓縮輸出流
ZipOutputStream zout = new ZipOutputStream(fout);
//設置壓縮級別
zout.setLevel(level);
//將指定文件壓縮到一個文件中
for (int i = start; i < args.length; i++)
{
ZipEntry ze = new ZipEntry(args[i]);
try
{
System.out.println("Compressing " + args[i]);
FileInputStream fin = new FileInputStream(args[i]);
zout.putNextEntry(ze);
int c=-1;
while ((c = fin.read()) != -1)
{
zout.write(c);
}
zout.closeEntry();
fin.close();
}
catch (IOException e)
{
System.err.println(e);
}
}
zout.close();
}
catch (Exception e)
{
System.err.println(e);
}
}
}
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