java對壓縮文件進行加密，解壓直接輸入解密密碼來使用

<!-- https://mvnrepository.com/artifact/net.lingala.zip4j/zip4j -->
<dependency>
    <groupId>net.lingala.zip4j</groupId>
    <artifactId>zip4j</artifactId>
    <version>1.3.2</version>
</dependency>

或者下載zip4j-1.3.2.jar

以下是對文件壓縮的方法，這裏只是單個文件壓縮，多個變通一下就可以。

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，解壓可直接輸入密碼解壓
     * 根據filepath讀取文件並加密返回
     */
    public static void zipFileAndEncrypt(String filePath,String zipFileName,String password) {
        try {
            ZipParameters parameters = setParam(password);
            //壓縮文件,並生成壓縮文件
            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，解壓可直接輸入密碼解壓
     */
    public static void zipFileStream(InputStream is,String zipFileName,String password) {try {
            ZipParameters parameters = setParam(password);
            //addStream,多設置兩個參數，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){
        //設置壓縮文件參數
        ZipParameters parameters = new ZipParameters();
        //設置壓縮方法
        parameters.setCompressionMethod(Zip4jConstants.COMP_DEFLATE);
        //設置壓縮級別
        parameters.setCompressionLevel(Zip4jConstants.DEFLATE_LEVEL_NORMAL);
        //設置壓縮文件是否加密
        parameters.setEncryptFiles(true);
        //設置aes加密強度
        parameters.setAesKeyStrength(Zip4jConstants.AES_STRENGTH_256);
        //設置加密方法
        parameters.setEncryptionMethod(Zip4jConstants.ENC_METHOD_AES);
        //設置密碼
        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\\test.xlsx","D:\\aaa\\test.zip","test123");


//          加密，addStream
           InputStream in = new FileInputStream("D:\\aaa\\test.xlsx");
           ZipComplexCipherUtil.zipFileStream(in,"D:\\aaa\\test.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();
       }

   }
}