Java ZIP文件压缩示例-优快云博客

本文提供了一个使用Java实现ZIP文件压缩的示例代码。该示例展示了如何将指定文件夹及其内容压缩成ZIP文件，并为ZIP文件添加注释。

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.zip.Adler32;
import java.util.zip.CheckedOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;

public class Zip {
public void ZipFiles(String file, String savepath) {
 try {
 File inFile = new File(file);
 FileOutputStream fout = new FileOutputStream(savepath);
 // 使用输出流检查
 CheckedOutputStream cs = new CheckedOutputStream(fout,new Adler32());
 // 声明输出zip流
 ZipOutputStream zout = new ZipOutputStream(new BufferedOutputStream(cs));
 // 写一个注释
 zout.setComment("This is the comment");
 zip(zout, inFile, "", cs);
 zout.close();
 } catch (Exception e) {
 System.err.println(e);
 }
}

private void zip(ZipOutputStream out, File inFile, String root,CheckedOutputStream cs) throws Exception {
 if (inFile.isDirectory()) {
 File[] files = inFile.listFiles();
 out.putNextEntry(new ZipEntry(root + "/"));
 root = root.length() == 0 ? "" : root + "/";
 for (int i = 0; i < files.length; i++) {
 zip(out, files[i], root + files[i].getName(), cs);
 }
 }else{
 BufferedInputStream in = new BufferedInputStream(new FileInputStream(inFile));
 out.putNextEntry(new ZipEntry(root));
 int c;
 while ((c = in.read()) != -1)
 out.write(c);
 in.close();
 // System.out.println("Checksum::" + cs.getChecksum().getValue());
 }
}

public static void main(String[] args){
 new Zip().ZipFiles("E://BAK","E://BAK.ZIP");
 
 String a = "2010";
 SimpleDateFormat sdf = new SimpleDateFormat("yyyy");
 
 try {
 System.out.println(sdf.parse(a));
 } catch (ParseException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
}
}