Question

用java实现文件夹的打包和解包（解包时按原有的目录结构）

给个链接或者写个大概的过程也行 越详细越好。

Answer 1

http://forum.csdn.net/BList/Java/UnClosedList
http://topic.csdn.net/t/20060823/20/4970869.html
望采纳。

Answer 2

import java.io.*;
import java.util.*;
import java.util.zip.*;

public class Unzip {

public static final void copyInputStream(InputStream in, OutputStream out)
throws IOException
{
byte[] buffer = new byte[1024];
int len;

while((len = in.read(buffer)) >= 0)
out.write(buffer, 0, len);

in.close();
out.close();
}

public static final void main(String[] args) {
Enumeration entries;
ZipFile zipFile;

if(args.length != 1) {
System.err.println("Usage: Unzip zipfile");
return;
}

try {
zipFile = new ZipFile(args[0]);

entries = zipFile.entries();

while(entries.hasMoreElements()) {
ZipEntry entry = (ZipEntry)entries.nextElement();

if(entry.isDirectory()) {
// Assume directories are stored parents first then children.
System.err.println("Extracting directory: " + entry.getName());
// This is not robust, just for demonstration purposes.
(new File(entry.getName())).mkdir();
continue;
}

System.err.println("Extracting file: " + entry.getName());
copyInputStream(zipFile.getInputStream(entry),
new BufferedOutputStream(new FileOutputStream(entry.getName())));
}

zipFile.close();
} catch (IOException ioe) {
System.err.println("Unhandled exception:");
ioe.printStackTrace();
return;
}
}

}

// These are the files to include in the ZIP file
String[] source = new String[]{"source1", "source2"};

// Create a buffer for reading the files
byte[] buf = new byte[1024];

try {
// Create the ZIP file
String target = "target.zip";
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(target));

// Compress the files
for (int i=0; i<source.length; i++) {
FileInputStream in = new FileInputStream(source[i]);

// Add ZIP entry to output stream.
out.putNextEntry(new ZipEntry(source[i]));

// Transfer bytes from the file to the ZIP file
int len;
while ((len = in.read(buf)) > 0) {
out.write(buf, 0, len);
}

// Complete the entry
out.closeEntry();
in.close();
}

// Complete the ZIP file
out.close();
} catch (IOException e) {
}

Answer 3

你可以使用第三方zip类库来做这个工作

可以看看apache的commons项目

Answer 4

在命令提示符下 键入命令jar -help