Java Zip文件解壓到指定目錄

要將ZIP文件解壓到指定目錄，你可以使用Java的java.util.zip包中的類。以下是一個簡單的示例代碼，展示了如何將ZIP文件解壓到指定的目錄：

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

public class UnzipFile {
    public static void main(String[] args) {
        // ZIP文件路徑
        String zipFilePath = "path/to/your/zipfile.zip";
        // 解壓目標目錄
        String destDirectory = "path/to/your/destination/directory";

        try {
            unzip(zipFilePath, destDirectory);
            System.out.println("ZIP文件已成功解壓到目標目錄");
        } catch (IOException e) {
            System.err.println("解壓過程中發生錯誤: " + e.getMessage());
        }
    }

    public static void unzip(String zipFilePath, String destDirectory) throws IOException {
        File destDir = new File(destDirectory);
        if (!destDir.exists()) {
            destDir.mkdir();
        }

        ZipInputStream zipIn = new ZipInputStream(new FileInputStream(zipFilePath));
        ZipEntry entry = zipIn.getNextEntry();
        while (entry != null) {
            String filePath = destDirectory + File.separator + entry.getName();
            if (!entry.isDirectory()) {
                extractFile(zipIn, filePath);
            } else {
                File dir = new File(filePath);
                dir.mkdirs();
            }
            zipIn.closeEntry();
            entry = zipIn.getNextEntry();
        }
        zipIn.close();
    }

    private static void extractFile(ZipInputStream zipIn, String filePath) throws IOException {
        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(filePath));
        byte[] bytesIn = new byte[4096];
        int read = 0;
        while ((read = zipIn.read(bytesIn)) != -1) {
            bos.write(bytesIn, 0, read);
        }
        bos.close();
    }
}

請確保將zipFilePath和destDirectory變量設置為正確的ZIP文件路徑和解壓目標目錄。運行此代碼后，ZIP文件將被解壓到指定的目錄。