java对压缩文件进行加密，winrar和好压 直接输入解密密码来使用

java对压缩文件进行加密，winrar和好压 直接输入解密密码来使用

<!-- 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();

       }

   }

}