java unzip

要在Java中解压缩文件，你可以使用`java.util.zip`包中的`ZipInputStream`类和`ZipEntry`类。下面是一个简单的示例代码，展示了如何解压缩一个zip文件：

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

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

 try {
 File destDir = new File(destDirectory);
 if (!destDir.exists()) {
 destDir.mkdir();
 }
 byte[] buffer = new byte[1024];
 ZipInputStream zipInputStream = new ZipInputStream(new FileInputStream(zipFilePath));
 ZipEntry zipEntry = zipInputStream.getNextEntry();
 while (zipEntry != null) {
 String fileName = zipEntry.getName();
 File newFile = new File(destDirectory + File.separator + fileName);
 // Create any necessary parent directories new File(newFile.getParent()).mkdirs();
 FileOutputStream outputStream = new FileOutputStream(newFile);
 int length;
 while ((length = zipInputStream.read(buffer)) >0) {
 outputStream.write(buffer,0, length);
 }
 outputStream.close();
 zipEntry = zipInputStream.getNextEntry();
 }
 zipInputStream.closeEntry();
 zipInputStream.close();
 System.out.println("File unzipped successfully.");
 } catch (IOException e) {
 e.printStackTrace();
 }
 }
}

请将 `zipFilePath` 替换为你的zip文件的路径，将 `destDirectory` 替换为你想要解压到的目标目录的路径。该代码将逐个解压zip文件中的条目，并将其保存到目标目录中。

希望这可以帮助到你。如有其他问题，请随时提问。