java 解压.zip

在Java中解压.zip文件可以使用java.util.zip包中的ZipInputStream类和ZipEntry来实现。下面是一个简单的示例代码：

import java.io.*;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

public class UnzipExample {
    public static void main(String[] args) {
        String zipFilePath = "path/to/your/file.zip";
        String destDir = "path/to/destination/directory";

        try {
            File destDirectory = new File(destDir);
            if (!destDirectory.exists()) {
                destDirectory.mkdir();
            }

            FileInputStream fis = new FileInputStream(zipFilePath);
            ZipInputStream zis = new ZipInputStream(fis);

            ZipEntry zipEntry = zis.getNextEntry();
            while (zipEntry != null) {
                String entryName = zipEntry.getName();
                String filePath = destDir + File.separator + entryName;

                if (!zipEntry.isDirectory()) {
                    extractFile(zis, filePath);
                } else {
                    File dir = new File(filePath);
                    dir.mkdir();
                }

                zis.closeEntry();
                zipEntry = zis.getNextEntry();
            }

            zis.close();
            fis.close();

            System.out.println("解压完成！");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    private static void extractFile(ZipInputStream zis, String filePath) throws IOException {
        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(filePath));
        byte[] buffer = new byte[1024];
        int bytesRead;

        while ((bytesRead = zis.read(buffer)) != -1) {
            bos.write(buffer, 0, bytesRead);
        }

        bos.close();
    }
}

你需要将上述代码中的"path/to/your/file.zip"替换为你要解压的.zip文件的路径，将"path/to/destination/directory"替换为你要将解压后的文件保存的目标目录路径。