代码：
package com.cfam.utils;import java.io.BufferedOutputStream;import java.io.ByteArrayInputStream;import java.io.ByteArrayOutputStream;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.util.ArrayList;import java.util.Base64;import java.util.List;import java.util.zip.ZipEntry;import java.util.zip.ZipInputStream;import java.util.zip.ZipOutputStream;import org.slf4j.Logger;import org.slf4j.LoggerFactory;/*** <p>* Title: ZipToBase64.java<／p>* <p>* Description: 压缩 转 base64 网络传输<／p>* * @author ken chen* @date 7月26日* @param srcFiles 需要压缩的文件* @return Base64 压缩文件后进行base64编码* @version 1.0*/public class ZipToBase64 {private static final int BUFFER_SIZE = 2 * 1024;private static final Logger log = LoggerFactory.getLogger(ZipToBase64.class);public static String toBase64Zip(List<File> srcFiles) throws RuntimeException {log.info("开始压缩文件 [{}]", srcFiles);long start = System.currentTimeMillis();String base64toZip = "";ZipOutputStream zos = null;ByteArrayOutputStream baos = new ByteArrayOutputStream();try {zos = new ZipOutputStream(baos);for (File srcFile : srcFiles) {byte[] buf = new byte[BUFFER_SIZE];log.info("压缩的文件名称 [{}] ", srcFile.getName() + "压缩的文件大小[{}] ", srcFile.length());zos.putNextEntry(new ZipEntry(srcFile.getName()));int len;FileInputStream in = new FileInputStream(srcFile);while ((len = in.read(buf)) != -1) {zos.write(buf, 0, len);}zos.closeEntry();in.close();}long end = System.currentTimeMillis();log.info("压缩完成，耗时： [{}] ms", (end - start));} catch (Exception e) {throw new RuntimeException("zip error from ZipToBase64", e);} finally {if (zos != null) {try {zos.close();} catch (IOException e) {e.printStackTrace();}}}byte[] refereeFileBase64Bytes =Base64.getEncoder().encode(baos.toByteArray());try {base64toZip = new String(refereeFileBase64Bytes, "UTF-8");} catch (Exception e) {throw new RuntimeException("压缩流出现异常", e);}return base64toZip;}/*** <p>* Title: ZipToBase64.java<／p>* <p>* Description: Base64 解密 zip 解压缩 <／p>* * @author ken chen* @date 7月26日* @param path 解压文件夹路径 文件夹父文件可更改* @param base64 base64加密字符* @return Base64 压缩文件后进行base64编码* @version 1.0*/public static void Base64ToFile(String base64, String path) throws RuntimeException {log.info("解压文件地址" + path);try {byte[] byteBase64 =Base64.getDecoder().decode(base64);ByteArrayInputStream byteArray = new ByteArrayInputStream(byteBase64);ZipInputStream zipInput = new ZipInputStream(byteArray);ZipEntry entry = zipInput.getNextEntry();File fout = null;File file = new File(path);String parent = file.getParent();while (entry != null && !entry.isDirectory()) {log.info("文件名称: [{}]", entry.getName());fout = new File(parent, entry.getName());if (!fout.exists()) {(new File(fout.getParent())).mkdirs();}BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(fout));int offo = -1;byte[] buffer = new byte[BUFFER_SIZE];while ((offo = zipInput.read(buffer)) != -1) {bos.write(buffer, 0, offo);}bos.close();// 获取 下一个文件entry = zipInput.getNextEntry();}zipInput.close();byteArray.close();} catch (Exception e) {throw new RuntimeException("解压流出现异常", e);}}public static void main(String[] args) {// 文件压缩List<File> fileList = new ArrayList<File>();fileList.add(new File("C:\\Users\\cjy\\Desktop\\qqq\\担保合同附件.pdf"));fileList.add(new File("C:\\Users\\cjy\\Desktop\\qqq\\融资申请表.xls"));fileList.add(new File("C:\\Users\\cjy\\Desktop\\qqq\\其他附件.jpg"));String base64 = ZipToBase64.toBase64Zip(fileList);log.info("文件base 64 加密：" + base64);ZipToBase64.Base64ToFile(base64, "C:\\Users\\cjy\\Desktop\\qqq\\新建文件夹\\a");}}
