java笔记_10_文件压缩Zip并加密(Zip4j)
1、添加依赖
Maven仓库地址:https://mvnrepository.com/artifact/net.lingala.zip4j/zip4j
<!--压缩--> <dependency> <groupId>net.lingala.zip4j</groupId> <artifactId>zip4j</artifactId> <version>1.3.1</version> </dependency>
2、具体代码
package com.lyt.demo.util; import lombok.extern.slf4j.Slf4j; import net.lingala.zip4j.core.ZipFile; import net.lingala.zip4j.exception.ZipException; import net.lingala.zip4j.model.ZipParameters; import net.lingala.zip4j.util.Zip4jConstants; import java.io.File; /** * @author LuLuYaa * @create 2023-05-10 14:15 */ public final class ZipUtil { /** * 文件压缩并加密 * @param filePath 文件夹路径 * @param zipPath 压缩后的路径 * @param password 密码 */ public static ZipFile zipEncrypt(String filePath, String zipPath, String password) throws ZipException { File file = new File(filePath); ZipFile zipFile = new ZipFile(zipPath); // 设置zip包的一些参数集合 ZipParameters parameters = new ZipParameters(); // 是否设置密码(此处设置为:是) parameters.setEncryptFiles(true); // 设置压缩方法 parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE); // 设置压缩级别 parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL); // 设置加密方法(Zip标准加密) parameters.setEncryptionMethod(Zip4jConstants.ENC_METHOD_STANDARD); // 压缩包密码 parameters.setPassword(password); if (file.isDirectory()) { //文件夹 zipFile.createZipFileFromFolder(file, parameters, false, -1L); } else { //单文件 zipFile.createZipFile(file, parameters); } return zipFile; } }
3、方法调用
public void toZip(){ try { ZipUtil.zipEncrypt("E:\\Desktop\\测试文件.xls","E:\\Desktop\\测试文件.zip","123456."); } catch (ZipException e) { e.printStackTrace(); } }