这2个工具类都推荐使用统一个场景的不通过写法
推荐第一种

package com.gblfy.test;import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;/*** java实现zip压缩文件（同一文件夹下的多个文件夹打成一个zip包）** @author gblfy* @date 2020-07-02*/
public class ZipCompressor {static final int BUFFER = 8192;private File zipFile;public ZipCompressor(String pathName) {zipFile = new File(pathName);}/*** 压缩入口* 适配:* 1.压缩文件* 2.压缩文件夹** @param pathName 传入一个或者多个文件/文件夹的绝对路径 可变参数*/public void compress(String... pathName) {ZipOutputStream out = null;try {FileOutputStream fileOutputStream = new FileOutputStream(zipFile);CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,new CRC32());out = new ZipOutputStream(cos);String basedir = "";for (int i = 0; i < pathName.length; i++) {//循环遍历传入的文件或者文件夹的绝对路径的 可变参数compress(new File(pathName[i]), out, basedir);}out.close();} catch (Exception e) {throw new RuntimeException(e);}}/*** 判断传参类型:是目录还是文件* <p>* 1.如果是文件,则调用压缩文件方法* 2.如果是目录,则调用压缩目录方法* </p>** @param file* @param out* @param basedir*/private void compress(File file, ZipOutputStream out, String basedir) {if (file.isDirectory()) {System.out.println("压缩：" + basedir + file.getName());//调用压缩目录方法this.compressDirectory(file, out, basedir);} else {System.out.println("压缩：" + basedir + file.getName());//调用压缩文件方法this.compressFile(file, out, basedir);}}/*** 压缩一个目录*/private void compressDirectory(File dir, ZipOutputStream out, String basedir) {if (!dir.exists()) {System.out.println("压缩目录不存在,请核实！");return;}File[] files = dir.listFiles();for (int i = 0; i < files.length; i++) {/* 递归 */compress(files[i], out, basedir + dir.getName() + "/");}}/*** 压缩一个文件*/private void compressFile(File file, ZipOutputStream out, String basedir) {if (!file.exists()) {System.out.println("压缩文件不存在,请核实！");return;}try {BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));ZipEntry entry = new ZipEntry(basedir + file.getName());out.putNextEntry(entry);int count;byte data[] = new byte[BUFFER];while ((count = bis.read(data, 0, BUFFER)) != -1) {out.write(data, 0, count);}bis.close();} catch (Exception e) {throw new RuntimeException(e);}}/*** 压缩指定文件(文件个数限定1个)** @param srcPathName*/public void compress(String srcPathName) {File file = new File(srcPathName);if (!file.exists()) {throw new RuntimeException(srcPathName + "不存在！");}try {FileOutputStream fileOutputStream = new FileOutputStream(zipFile);CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,new CRC32());ZipOutputStream out = new ZipOutputStream(cos);String basedir = "";compress(file, out, basedir);out.close();} catch (Exception e) {throw new RuntimeException(e);}}public static void main(String[] args) {ZipCompressor zc = new ZipCompressor("D:/resource.zip");// String b = "D:\\1\\";String b = "D:\\1.jpg";zc.compress(b);// zc.compress("D:\\1.jpg", "D:\\3.jpeg", "D:\\4.jpg", b);}
}

package com.gblfy.test;import java.io.BufferedInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.zip.CRC32;
import java.util.zip.CheckedOutputStream;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;/*** java实现zip压缩文件（同一文件夹下的多个文件夹打成一个zip包）** @author gblfy* @date 2020-07-02*/
public class ZipCompressor2 {static final int BUFFER = 8192;/*** 压缩入口* 适配:* 1.压缩文件* 2.压缩文件夹** @param pathName 传入一个或者多个文件/文件夹的绝对路径 可变参数*/public void compress(String pathName, String zipFileName) {ZipOutputStream out = null;try {FileOutputStream fileOutputStream = new FileOutputStream(zipFileName);CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,new CRC32());out = new ZipOutputStream(cos);String basedir = "";//循环遍历传入的文件或者文件夹的绝对路径的 可变参数compress(new File(pathName), out, basedir);out.close();} catch (Exception e) {throw new RuntimeException(e);}}/*** 判断传参类型:是目录还是文件* <p>* 1.如果是文件,则调用压缩文件方法* 2.如果是目录,则调用压缩目录方法* </p>** @param file* @param out* @param basedir*/private void compress(File file, ZipOutputStream out, String basedir) {if (file.isDirectory()) {System.out.println("压缩：" + basedir + file.getName());//调用压缩目录方法this.compressDirectory(file, out, basedir);} else {System.out.println("压缩：" + basedir + file.getName());//调用压缩文件方法this.compressFile(file, out, basedir);}}/*** 压缩一个目录*/private void compressDirectory(File dir, ZipOutputStream out, String basedir) {if (!dir.exists()) {System.out.println("压缩目录不存在,请核实！");return;}File[] files = dir.listFiles();for (int i = 0; i < files.length; i++) {/* 递归 */compress(files[i], out, basedir + dir.getName() + "/");}}/*** 压缩一个文件*/private void compressFile(File file, ZipOutputStream out, String basedir) {if (!file.exists()) {System.out.println("压缩文件不存在,请核实！");return;}try {BufferedInputStream bis = new BufferedInputStream(new FileInputStream(file));ZipEntry entry = new ZipEntry(basedir + file.getName());out.putNextEntry(entry);int count;byte data[] = new byte[BUFFER];while ((count = bis.read(data, 0, BUFFER)) != -1) {out.write(data, 0, count);}bis.close();} catch (Exception e) {throw new RuntimeException(e);}}/*** 压缩指定文件(特殊场景)* 文件个数限定1个** @param srcPathName*/public void compressFile(String srcPathName, String zipName) {File file = new File(srcPathName);if (!file.exists()) {throw new RuntimeException(srcPathName + "不存在！");}try {FileOutputStream fileOutputStream = new FileOutputStream(zipName);CheckedOutputStream cos = new CheckedOutputStream(fileOutputStream,new CRC32());ZipOutputStream out = new ZipOutputStream(cos);String basedir = "";compress(file, out, basedir);out.close();} catch (Exception e) {throw new RuntimeException(e);}}public static void main(String[] args) {ZipCompressor2 zc = new ZipCompressor2();String b = "D:\\1\\";String zipName = "D:\\www.zip";// String b = "D:\\1.jpg";zc.compress(b, zipName);// zc.compress("D:\\1.jpg", "D:\\3.jpeg", "D:\\4.jpg", b);}
}