爪哇 - 荏苒现有文件 [英] Java - Zipping existing files

问题描述

可能重复：结果
  追加文件与Java

您好Java开发，

下面的情况：搜索结果
说我有一个文本文件名为 sample.txt的。我真正想要做的是把 sample.txt的文件转换成一个名为 *。拉链文件 TextFiles.zip 搜索结果
这是我迄今为止的经验教训。

Here's the scenario:

Say I have a textfile named sample.txt. What I actually want to do is to put the sample.txt file into a *.zip file named TextFiles.zip.

Here's what I have learned so far.

try{
    File f = new File(compProperty.getZIP_OUTPUT_PATH());
    zipOut = new ZipOutputStream(new FileOutputStream(f));
    ZipEntry zipEntry = new ZipEntry("sample.txt");
    zipOut.putNextEntry(zipEntry);
    zipOut.closeEntry();
    zipOut.close();
    System.out.println("Done");

} catch ( Exception e ){
    // My catch block
}

我的code到目前为止创建 *。拉链文件并插入 sample.txt的文件。结果
我的问题是如何将能够插入现有文件创建 *。ZIP文件？结果
如果你的答案有什么关系 TrueZIP ，请张贴SSCCE。结果< BR>
我也做了以下内容：结果

My code so far creates a *.zip file and insert the sample.txt file.
My question is how would I be able to insert an existing file to the created *.zip file?
If your answer has anything to do with TrueZIP, please post an SSCCE.

I have done the following:

• Google搜索


• 搜索存在的问题。 （找到几个。没有回答。一些没有回答我的问题，尤其


• TrueZip 。然而，我无法理解的事情。 （请明白）

• Googled
• Search for existing question. ( Found few. No answer. Some didn't answer my particular question.
• Read TrueZip. Yet, I couldn't understand a thing. ( Please do understand )

推荐答案

使用内置的Java API。这将文件添加到ZIP文件，这将取代任何可能存在的现有Zip文件，创建一个新的Zip文件。

Using the inbuilt Java API. This will add a file to a Zip File, this will replace any existing Zip files that may exist, creating a new Zip file.

public class TestZip02 {

  public static void main(String[] args) {
    try {
      zip(new File("TextFiles.zip"), new File("sample.txt"));
    } catch (IOException ex) {
      ex.printStackTrace();
    }
  }

  public static void zip(File zip, File file) throws IOException {
    ZipOutputStream zos = null;
    try {
      String name = file.getName();
      zos = new ZipOutputStream(new FileOutputStream(zip));

      ZipEntry entry = new ZipEntry(name);
      zos.putNextEntry(entry);

      FileInputStream fis = null;
      try {
        fis = new FileInputStream(file);
        byte[] byteBuffer = new byte[1024];
        int bytesRead = -1;
        while ((bytesRead = fis.read(byteBuffer)) != -1) {
          zos.write(byteBuffer, 0, bytesRead);
        }
        zos.flush();
      } finally {
        try {
          fis.close();
        } catch (Exception e) {
        }
      }
      zos.closeEntry();

      zos.flush();
    } finally {
      try {
        zos.close();
      } catch (Exception e) {
      }
    }
  }
}

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