java 解压ara

Java提供了一种解压缩文件的功能，可以使用java.util.zip包中的类来实现。具体步骤如下：

1. 导入所需的类：

   import java.io.File;
   import java.io.FileInputStream;
   import java.io.FileOutputStream;
   import java.io.IOException;
   import java.util.zip.ZipEntry;
   import java.util.zip.ZipInputStream;

2. 创建一个ZipInputStream对象，并指定要解压的ZIP文件路径：

   String zipFilePath = "path/to/your/archive.zip";
   ZipInputStream zipInputStream = new ZipInputStream(new FileInputStream(zipFilePath));

3. 逐个读取ZIP文件中的条目，并将其解压到指定目录：

   String outputFolder = "path/to/your/output/folder/";
   byte[] buffer = new byte[1024];
   ZipEntry zipEntry = zipInputStream.getNextEntry();
   while (zipEntry != null) {
       String entryName = zipEntry.getName();
       File file = new File(outputFolder + entryName);
       if (zipEntry.isDirectory()) {
           file.mkdirs();
       } else {
           FileOutputStream fileOutputStream = new FileOutputStream(file);
           int length;
           while ((length = zipInputStream.read(buffer)) > 0) {
               fileOutputStream.write(buffer, 0, length);
           }
           fileOutputStream.close();
       }
       zipEntry = zipInputStream.getNextEntry();
   }
   zipInputStream.closeEntry();
   zipInputStream.close();

这样就可以将ZIP文件解压到指定目录中了。