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Java 解压文件

news 2025/8/26 23:52:27

maven库：

<!--FileUtil、ZipUtil 依赖-->   
<dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.3.1</version>
</dependency><!--IOUtils 依赖-->
<dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>2.11.0</version>
</dependency><!--MockMultipartFile 依赖-->
<dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>5.0.5.RELEASE</version>
</dependency><!--MultipartFile 依赖-->
<dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>5.1.8.RELEASE</version>
</dependency>

代码：

import cn.hutool.core.io.FileUtil;
import cn.hutool.core.util.ZipUtil;
import org.apache.commons.io.IOUtils;
import org.springframework.mock.web.MockMultipartFile;
import org.springframework.web.multipart.MultipartFile;import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;public class Test {public static void main(String[] args) throws IOException {//生成File文件File file = new File("H:\\testFile\\123.zip");//File文件转MultipartFileFileInputStream input = new FileInputStream(file);MultipartFile multipartFile = new MockMultipartFile("file", file.getName(), "text/plain", IOUtils.toByteArray(input));//pdf文件名称List<String> pdfName = new ArrayList<>();//multipartFileList--存储解压后的，pdf文件List<MultipartFile> multipartFileList = new ArrayList<>();//设置解压后文件的临时路径String destDirPath = FileUtil.getTmpDirPath() + "/standardFile/" + +System.nanoTime() + "/";try {//解压文件List<File> files = parseMainTextZip(multipartFile, destDirPath);System.out.println("解压文件个数："+ files.size());for (File filePdf : files) {InputStream inputStream = new FileInputStream(filePdf);MultipartFile multipartFileTmp = new MockMultipartFile("file", filePdf.getName(), "text/plain", IOUtils.toByteArray(inputStream));//multipartFileList--存储解压后的，pdf文件multipartFileList.add(multipartFileTmp);String pdfNameStr = filePdf.getName();pdfName.add(pdfNameStr.substring(0, pdfNameStr.length() - 4));inputStream.close();}}catch (Exception e) {e.printStackTrace();} finally {//删除临时路径中解压后的文件FileUtil.del(destDirPath);}//处理解压后的文件--multipartFileListfor (MultipartFile filePdf : multipartFileList) {String originalFilepdf = filePdf.getOriginalFilename();if (originalFilepdf.endsWith("pdf")) {originalFilepdf = originalFilepdf.substring(0, originalFilepdf.length() - 4);System.out.println("文件名称为："+originalFilepdf);}}}//解压文件private static List<File> parseMainTextZip(MultipartFile mainTextFile, String destDirPath) throws Exception {if (!FileUtil.exist(destDirPath)) {//创建解压后的目录createDirectory(destDirPath);}String tmpFilePath = destDirPath + mainTextFile.getOriginalFilename();File fromStream = FileUtil.writeFromStream(mainTextFile.getInputStream(), tmpFilePath);File zipFile;try {zipFile = ZipUtil.unzip(fromStream.getAbsolutePath(), destDirPath, Charset.forName("GBK"));} catch (Exception e) {zipFile = ZipUtil.unzip(fromStream.getAbsolutePath(), destDirPath, StandardCharsets.UTF_8);}List<File> extractedFileList = FileUtil.loopFiles(zipFile, file -> !file.getName().endsWith("zip"));return extractedFileList;}/*** 创建目录** @param descDirName 目录名,包含路径* @return 如果创建成功，则返回true，否则返回false*/public static boolean createDirectory(String descDirName) {String descDirNames = descDirName;if (!descDirNames.endsWith(File.separator)) {descDirNames = descDirNames + File.separator;}File descDir = new File(descDirNames);if (descDir.exists()) {System.out.println("目录 " + descDirNames + " 已存在!");return false;}// 创建目录if (descDir.mkdirs()) {System.out.println("目录 " + descDirNames + " 创建成功!");return true;} else {System.out.println("目录 " + descDirNames + " 创建失败!");return false;}}}