Java Zip4j：如果创建的zip文件存在，如何覆盖

我想在使用Zip4j创建zip文件时覆盖现有的zip文件。当我使用Zip4j创建zip文件时，我的文件将根据splitSize进行分割。所以我不能检查它。这里是我的代码示例

        File file = new File("C:\\temp\\5.pdf");
        ZipParameters parameters = new ZipParameters();
        // set compression method to store compression
        parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
        // Set the compression level. This value has to be in between 0 to 9
        parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);


        zipFile.createZipFile(file, parameters, true, splitSize);

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希望这有帮助，谢谢

//step 1

Path p1 = ...; //path to your potentially existing file
Path p2 = ...; //path of your new file;

if (Files.isSameFile(p1, p2)) {
  try {
  delete(p1) // delete the directory where your duplicate is located

  //step 2: insert your saving logic with zip4j ( make sure you create a new           subdirectory for each file you zip
  //step 3: eat some strawberry ice-cream 

  } catch (NoSuchFileException x) {
  System.err.format("%s: no such" + " file or directory%n", path);
  } catch (DirectoryNotEmptyException x) {
  System.err.format("%s not empty%n", path);
  } catch (IOException x) {
  // File permission problems are caught here.
  System.err.println(x);
  }
}

//use this method to delete the files in the directory before deleting it.
void delete(File f) throws IOException {
  if (f.isDirectory()) {
    for (File c : f.listFiles())
      delete(c);
  }
  if (!f.delete())
  throw new FileNotFoundException("Failed to delete file: " + f);
}

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无论该文件是否已存在，以下代码都将起作用：

File file = new File("<your zip file">);
boolean delete = file.delete();

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File File File=new File（“为什么不检查它是否存在并删除它？提供有关代码的信息。这很好，我想要草莓冰淇淋谢谢Arno..当我使用Zip4j创建zip文件时，我的文件将根据拆分大小进行拆分。所以我无法检查它。1）为每个zip文件创建一个目录，以便拆分的文件位于其中。2）如果要压缩同一个文件，请删除该目录