<!-- https://mvnrepository.com/artifact/net.lingala.zip4j/zip4j --> <dependency> <groupId>net.lingala.zip4j</groupId> <artifactId>zip4j</artifactId> <version>1.3.2</version> </dependency>
或者下载zip4j-1.3.2.jar
以下是对文件压缩的方法,这里只是单个文件压缩,多个变通一下就可以。
package com.yggdrasill.foura.web.sysadmin.backup.service; 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.*; import java.util.ArrayList; public class ZipComplexCipherUtil { /** * 加密1,winrar,好压2345可直接输入密码解压 * 根据filepath读取文件并加密返回 */ public static void zipFileAndEncrypt(String filePath,String zipFileName,String password) { try { ZipParameters parameters = setParam(password); //压缩文件,并生成压缩文件 ArrayList<File> filesToAdd = new ArrayList<File>(); File file = new File(filePath); filesToAdd.add(file); ZipFile zipFile = new ZipFile(zipFileName); zipFile.addFiles(filesToAdd, parameters);//this line does works System.err.println("end"); } catch (ZipException e) { e.printStackTrace(); } } /** * 加密1,winrar,好压2345可直接输入密码解压 */ public static void zipFileStream(InputStream is,String zipFileName,String password) {try { ZipParameters parameters = setParam(password); //addStream,多设置两个参数,缺一不可 parameters.setFileNameInZip("yourfilename.xlsx"); parameters.setSourceExternalStream(true); ZipFile zipFile = new ZipFile(zipFileName); zipFile.addStream(is, parameters); } catch (ZipException e) { e.printStackTrace(); } } public static ZipParameters setParam(String password){ //设置压缩文件参数 ZipParameters parameters = new ZipParameters(); //设置压缩方法 parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE); //设置压缩级别 parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL); //设置压缩文件是否加密 parameters.setEncryptFiles(true); //设置aes加密强度 parameters.setAesKeyStrength(Zip4jConstants.AES_STRENGTH_256); //设置加密方法 parameters.setEncryptionMethod(Zip4jConstants.ENC_METHOD_AES); //设置密码 parameters.setPassword(password.toCharArray()); return parameters; } public static void main(String[] args) throws Exception { try{ long l1 = System.currentTimeMillis(); // //加密,addFile // ZipComplexCipherUtil.zipFileAndEncrypt("D:\aaa\zhmm_db.xlsx","D:\aaa\ccc.zip","123");
// 加密,addStream InputStream in = new FileInputStream("D:\aaa\zhmm_db.xlsx"); ZipComplexCipherUtil.zipFileStream(in,"D:\aaa\ccc.zip","123"); long l2 = System.currentTimeMillis(); System.out.println((l2 - l1) + "毫秒."); System.out.println(((l2 - l1) / 1000) + "秒."); }catch(Exception ex){ ex.printStackTrace(); } } }