zip文件目录结构如下:
其中,word下面还有多个子目录,可以递归进行解压目录,核心代码如下:
package com.atguigu.common.utils;import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.*;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;/*** @ClassName Test* @Description java实现解压zip文件* @Author mischen* @Date 2023/2/25 7:57* @Version 1.0**/
public class Test {public static void main(String[] args) {File sourefile = new File("F:\\test1\\demo.zip");String dest = "F:\\test1\\demo";unZip(sourefile,dest);System.out.println("解压成功!");}/*** zip解压* @param srcFile zip源文件* @param destDirPath 解压后的目标文件夹* @throws RuntimeException 解压失败会抛出运行时异常* @author mischen* @date 2023-02-25*/public static void unZip(File srcFile, String destDirPath) throws RuntimeException {long start = System.currentTimeMillis();// 判断源文件是否存在if (!srcFile.exists()) {throw new RuntimeException(srcFile.getPath() + "所指文件不存在");}// 开始解压ZipFile zipFile = null;try {zipFile = new ZipFile(srcFile);Enumeration<?> entries = zipFile.entries();while (entries.hasMoreElements()) {ZipEntry entry = (ZipEntry) entries.nextElement();System.out.println("解压" + entry.getName());// 如果是文件夹,就创建个文件夹if (entry.isDirectory()) {String dirPath = destDirPath + "/" + entry.getName();File dir = new File(dirPath);dir.mkdirs();} else {// 如果是文件,就先创建一个文件,然后用io流把内容copy过去File targetFile = new File(destDirPath + "/" + entry.getName());// 保证这个文件的父文件夹必须要存在if(!targetFile.getParentFile().exists()){targetFile.getParentFile().mkdirs();}targetFile.createNewFile();// 将压缩文件内容写入到这个文件中InputStream is = zipFile.getInputStream(entry);FileOutputStream fos = new FileOutputStream(targetFile);int len;byte[] buf = new byte[1024];while ((len = is.read(buf)) != -1) {fos.write(buf, 0, len);}// 关流顺序,先打开的后关闭fos.close();is.close();}}long end = System.currentTimeMillis();System.out.println("解压完成,耗时:" + (end - start) +" ms");} catch (Exception e) {throw new RuntimeException("unzip error from ZipUtils", e);} finally {if(zipFile != null){try {zipFile.close();} catch (IOException e) {e.printStackTrace();}}}}
}