java实现zip,gzip,7z,zlib格式的压缩打包

<dependency>
      <groupId>org.apache.commons</groupId>
      <artifactId>commons-compress</artifactId>
      <version>1.12</version>
    </dependency> 

public static void zip(String input, String output, String name) throws Exception {
    ZipOutputStream out = new ZipOutputStream(new FileOutputStream(output));
    String[] paths = input.split("\\|");
    File[] files = new File[paths.length];
    byte[] buffer = new byte[1024];
    for (int i = 0; i < paths.length; i++) {
      files[i] = new File(paths[i]);
    }
    for (int i = 0; i < files.length; i++) {
      FileInputStream fis = new FileInputStream(files[i]);
      if (files.length == 1 && name != null) {
        out.putNextEntry(new ZipEntry(name));
      } else {
        out.putNextEntry(new ZipEntry(files[i].getName()));
      }
      int len;
      // 读入需要下载的文件的内容，打包到zip文件
      while ((len = fis.read(buffer)) > 0) {
        out.write(buffer, 0, len);
      }
      out.closeEntry();
      fis.close();
    }
    out.close();
  }

public static void gzip(String input, String output, String name) throws Exception {
    String compress_name = null;
    if (name != null) {
      compress_name = name;
    } else {
      compress_name = new File(input).getName();
    }
    byte[] buffer = new byte[1024];
    try {
      GzipParameters gp = new GzipParameters();  //设置压缩文件里的文件名
      gp.setFilename(compress_name);
      GzipCompressorOutputStream gcos = new GzipCompressorOutputStream(new FileOutputStream(output), gp);
      FileInputStream fis = new FileInputStream(input);
      int length;
      while ((length = fis.read(buffer)) > 0) {
        gcos.write(buffer, 0, length);
      }
      fis.close();
      gcos.finish();
    } catch (IOException ioe) {
      ioe.printStackTrace();
    }
  }

public static void z7z(String input, String output, String name) throws Exception {
    try {
      SevenZOutputFile sevenZOutput = new SevenZOutputFile(new File(output));
      SevenZArchiveEntry entry = null;

      String[] paths = input.split("\\|");
      File[] files = new File[paths.length];
      for (int i = 0; i < paths.length; i++) {
        files[i] = new File(paths[i].trim());
      }
      for (int i = 0; i < files.length; i++) {
        BufferedInputStream instream = null;
        instream = new BufferedInputStream(new FileInputStream(paths[i]));
        if (name != null) {
          entry = sevenZOutput.createArchiveEntry(new File(paths[i]), name);
        } else {
          entry = sevenZOutput.createArchiveEntry(new File(paths[i]), new File(paths[i]).getName());
        }
        sevenZOutput.putArchiveEntry(entry);
        byte[] buffer = new byte[1024];
        int len;
        while ((len = instream.read(buffer)) > 0) {
          sevenZOutput.write(buffer, 0, len);
        }
        instream.close();
        sevenZOutput.closeArchiveEntry();
      }
      sevenZOutput.close();
    } catch (IOException ioe) {
      System.out.println(ioe.toString() + " " + input);
    }
  }

public static void zlib(String input, String output) throws Exception {

//    DeflaterOutputStream dos = new DeflaterOutputStream(new FileOutputStream(output));
    DeflateParameters dp = new DeflateParameters();
    dp.setWithZlibHeader(true);
    DeflateCompressorOutputStream dcos = new DeflateCompressorOutputStream(new FileOutputStream(output),dp);
    FileInputStream fis = new FileInputStream(input);
    int length = (int) new File(input).length();
    byte data[] = new byte[length];
    // int length;
    while ((length = fis.read(data)) > 0) {
      dcos.write(data, 0, length);
    }
    fis.close();
    dcos.finish();
    dcos.close();
  }