SpringBoot 中 zip 文件解壓工具類

zip 文件解壓（不支持密碼）

相關 Maven 依賴

<dependency>  <groupId>org.apache.commons</groupId>  <artifactId>commons-lang3</artifactId>  <version>3.6</version>  
</dependency>  
<dependency>  <groupId>org.apache.commons</groupId>  <artifactId>commons-compress</artifactId>  <version>1.21</version>  
</dependency>  
<dependency>  <groupId>com.googlecode.juniversalchardet</groupId>  <artifactId>juniversalchardet</artifactId>  <version>1.0.3</version>  
</dependency>

工具類

import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;  
import org.apache.commons.compress.archivers.zip.ZipArchiveInputStream;  
import org.apache.commons.lang3.StringUtils;  
import org.mozilla.universalchardet.UniversalDetector;  import java.io.BufferedInputStream;  
import java.io.BufferedOutputStream;  
import java.io.File;  
import java.io.IOException;  
import java.nio.file.Files;  
import java.nio.file.Path;  
import java.nio.file.Paths;  public class CompressUtils {  public static void main(String[] args) throws IOException {  String filePath = "C:\\Users\\MAC\\Desktop\\Desktop.zip";  String targetPath = "C:\\Users\\MAC\\Desktop";  File zipFile = new File(filePath);  File targetDir = new File(targetPath);  decompressZipFileWithoutPassword(zipFile, targetDir);  }  public static Boolean decompressZipFileWithoutPassword(File zipFile, File targetDir) throws IOException {  if (!zipFile.exists() || !zipFile.getName().endsWith("zip")) {  return false;  }  if (!targetDir.exists()) {  targetDir.mkdirs();  }  // 獲取文件的編碼格式  String encoding = FileUtils.detectFileEncoding(zipFile);  try (ZipArchiveInputStream zis = new ZipArchiveInputStream(new BufferedInputStream(Files.newInputStream(zipFile.toPath())), encoding)) {  ZipArchiveEntry entry = null;  while ((entry = zis.getNextZipEntry()) != null) {  // 如果時文件夾則忽略，也可以創建文件夾  if (entry.isDirectory()) continue;  String name = entry.getName();  Path unzipFilePath = Paths.get(targetDir.getAbsolutePath(), name);  Path parent = unzipFilePath.getParent();  // 判斷父文件夾存不存在，不存在則創建  if (!Files.exists(parent)) parent.toFile().mkdirs();  try (BufferedOutputStream bos = new BufferedOutputStream(Files.newOutputStream(unzipFilePath))) {  byte[] buf = new byte[4096];  int len;  while ((len = zis.read(buf)) != -1) {  bos.write(buf, 0, len);  }  }  }  }  return true;  }  
}  class FileUtils {  /**  * 自動檢測文件的編碼格式  * @param file 需要檢測的文件  * @return encoding 編碼格式，默認為 UTF-8  * @throws IOException  */    public static String detectFileEncoding(File file) throws IOException {  String encoding = null;  try (BufferedInputStream bis = new BufferedInputStream(Files.newInputStream(file.toPath()))) {  UniversalDetector detector = new UniversalDetector(null);  byte[] buf = new byte[4096];  int len;  while ((len = bis.read(buf)) != -1 && !detector.isDone()) {  detector.handleData(buf, 0, len);  }  detector.dataEnd();  encoding = detector.getDetectedCharset();  detector.reset();  }  return !StringUtils.isBlank(encoding) ? encoding : "UTF-8";  }  
}