7Zip在JAVA中的实现

<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-compress</artifactId>
    <version>1.21</version>
</dependency>

import org.apache.commons.compress.archivers.sevenz.SevenZArchiveEntry;
import org.apache.commons.compress.archivers.sevenz.SevenZOutputFile;

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;

public class SevenZipExample {
    public static void main(String[] args) {
        String sourceFilePath = "path/to/source/file";
        String destinationFilePath = "path/to/destination/file.7z";

        try (SevenZOutputFile sevenZOutput = new SevenZOutputFile(new File(destinationFilePath))) {
            File sourceFile = new File(sourceFilePath);
            SevenZArchiveEntry entry = sevenZOutput.createArchiveEntry(sourceFile, sourceFile.getName());
            sevenZOutput.putArchiveEntry(entry);

            FileInputStream inputStream = new FileInputStream(sourceFile);
            byte[] buffer = new byte[1024];
            int length;
            while ((length = inputStream.read(buffer)) > 0) {
                sevenZOutput.write(buffer, 0, length);
            }

            sevenZOutput.closeArchiveEntry();
            sevenZOutput.finish();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

import org.apache.commons.compress.archivers.sevenz.SevenZArchiveEntry;
import org.apache.commons.compress.archivers.sevenz.SevenZFile;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;

public class SevenZipExample {
    public static void main(String[] args) {
        String sourceFilePath = "path/to/source/file.7z";
        String destinationFolderPath = "path/to/destination/folder";

        try (SevenZFile sevenZFile = new SevenZFile(new File(sourceFilePath))) {
            SevenZArchiveEntry entry;
            while ((entry = sevenZFile.getNextEntry()) != null) {
                File destinationFile = new File(destinationFolderPath, entry.getName());
                if (entry.isDirectory()) {
                    destinationFile.mkdirs();
                } else {
                    byte[] buffer = new byte[1024];
                    int length;
                    FileOutputStream outputStream = new FileOutputStream(destinationFile);
                    while ((length = sevenZFile.read(buffer)) > 0) {
                        outputStream.write(buffer, 0, length);
                    }
                    outputStream.close();
                }
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}