采用org.apache.tools.zip来进行zip包的解压缩，支持目录嵌套和中文名

最新推荐文章于 2022-08-05 16:38:51 发布

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最新推荐文章于 2022-08-05 16:38:51 发布

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本文介绍了一个Java程序，用于解压缩ZIP格式的文件，并支持目录嵌套及中文目录名。程序使用了Apache的tools.zip库来实现解压缩功能。

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一篇关于zip包的解压缩，支持目录嵌套和文件目录的中文名，也算补上上次的只压不解，（注意先倒入ant.jar这个包，同时要确认ant.jar包中有org.apache.tools.zip）：

import java.io.*;
public class DeCompressBook {
    public DeCompressBook() {
    }

private void createDirectory(String directory, String subDirectory) {
    String dir[];
    File fl = new File(directory);
    try {
      if (subDirectory == "" && fl.exists() != true)
        fl.mkdir();
      else if (subDirectory != "") {
        dir = subDirectory.replace('\\', '/').split("/");
        for (int i = 0; i < dir.length; i++) {
          File subFile = new File(directory + File.separator + dir[i]);
          if (subFile.exists() == false)
            subFile.mkdir();
          directory += File.separator + dir[i];
        }
      }
    }
    catch (Exception ex) {
      System.out.println(ex.getMessage());
    }
  }

public void unZip(String zipFileName, String outputDirectory) throws Exception {
    try {
      org.apache.tools.zip.ZipFile zipFile = new org.apache.tools.zip.ZipFile(zipFileName);
      java.util.Enumeration e = zipFile.getEntries();
      org.apache.tools.zip.ZipEntry zipEntry = null;
      createDirectory(outputDirectory, "");
      while (e.hasMoreElements()) {
        zipEntry = (org.apache.tools.zip.ZipEntry) e.nextElement();
        System.out.println("unziping " + zipEntry.getName());
        if (zipEntry.isDirectory()) {
          String name = zipEntry.getName();
          name = name.substring(0, name.length() - 1);
          File f = new File(outputDirectory + File.separator + name);
          f.mkdir();
          System.out.println("创建目录：" + outputDirectory + File.separator + name);
        }
        else {
          String fileName = zipEntry.getName();
          fileName = fileName.replace('\\', '/');
         // System.out.println("测试文件1：" +fileName);
          if (fileName.indexOf("/") != -1)
          {
              createDirectory(outputDirectory,
                              fileName.substring(0, fileName.lastIndexOf("/")));
              fileName=fileName.substring(fileName.lastIndexOf("/")+1,fileName.length());
          }

                   File f = new File(outputDirectory + File.separator + zipEntry.getName());

          f.createNewFile();
          InputStream in = zipFile.getInputStream(zipEntry);
          FileOutputStream out=new FileOutputStream(f);

          byte[] by = new byte[1024];
          int c;
          while ( (c = in.read(by)) != -1) {
            out.write(by, 0, c);
          }
          out.close();
          in.close();
        }
      }
       }
    catch (Exception ex) {
      System.out.println(ex.getMessage());
    }

    }
}