java 解压多层zip 包
时间: 2023-07-01 13:22:45 浏览: 34
可以使用Java的ZipInputStream类来解压多层Zip包。以下是一个示例代码:
```java
import java.io.*;
import java.util.zip.*;
public class UnzipMultiLevelZip {
public static void main(String[] args) throws IOException {
String inputFilePath = "path/to/multi-level.zip";
String outputDirPath = "path/to/output/dir";
unzipMultiLevelZip(inputFilePath, outputDirPath);
}
public static void unzipMultiLevelZip(String inputFilePath, String outputDirPath) throws IOException {
FileInputStream fis = new FileInputStream(inputFilePath);
ZipInputStream zis = new ZipInputStream(new BufferedInputStream(fis));
byte[] buffer = new byte[1024];
ZipEntry entry;
while ((entry = zis.getNextEntry()) != null) {
String entryName = entry.getName();
String[] parts = entryName.split("/");
File file = new File(outputDirPath);
for (int i = 0; i < parts.length - 1; i++) {
file = new File(file, parts[i]);
}
if (!file.exists()) {
file.mkdirs();
}
if (!entry.isDirectory()) {
FileOutputStream fos = new FileOutputStream(new File(file, parts[parts.length - 1]));
BufferedOutputStream bos = new BufferedOutputStream(fos, buffer.length);
int len;
while ((len = zis.read(buffer)) > 0) {
bos.write(buffer, 0, len);
}
bos.flush();
bos.close();
}
}
zis.close();
}
}
```
这个示例代码将一个多层Zip包解压到指定的输出目录中。`unzipMultiLevelZip`方法接收一个输入Zip文件路径和一个输出目录路径作为参数,并使用`ZipInputStream`类来逐级解压Zip包。在解压过程中,如果需要创建目录,则使用`File.mkdirs()`方法来创建目录。如果当前Zip条目是一个文件,则使用`FileOutputStream`类将其写入到磁盘上的文件中。
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