package com.dji.sample.patches.utils;
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import com.amazonaws.util.IOUtils;
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import org.springframework.context.annotation.Configuration;
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import javax.servlet.ServletOutputStream;
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import javax.servlet.http.HttpServletResponse;
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import java.io.*;
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import java.nio.charset.Charset;
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import java.util.ArrayList;
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import java.util.Enumeration;
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import java.util.List;
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import java.util.zip.ZipEntry;
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import java.util.zip.ZipFile;
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import java.util.zip.ZipOutputStream;
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@Configuration
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public class ZipUtil {
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/**
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* zip解压
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*
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* @param srcFile zip源文件
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* @param destDirPath 解压后的目标文件夹
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* @return list 解压文件的路径合集
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* @throws RuntimeException 解压失败会抛出运行时异常
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*/
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public static List<String> unZipFiles(File srcFile, String destDirPath) throws RuntimeException {
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List<String> list = new ArrayList<>();
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long start = System.currentTimeMillis();
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// 判断源文件是否存在
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if (!srcFile.exists()) {
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throw new RuntimeException(srcFile.getPath() + "所指文件不存在");
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}
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// 开始解压
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ZipFile zipFile = null;
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try {
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zipFile = new ZipFile(srcFile, Charset.forName("GBK"));
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Enumeration<?> entries = zipFile.entries();
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while (entries.hasMoreElements()) {
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ZipEntry entry = (ZipEntry) entries.nextElement();
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// 如果是文件夹，就创建个文件夹
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if (entry.isDirectory()) {
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String dirPath = destDirPath + File.separator + entry.getName();
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File dir = new File(dirPath);
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dir.mkdirs();
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} else {
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// 如果是文件，就先创建一个文件，然后用io流把内容copy过去
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File targetFile = new File(destDirPath + File.separator + entry.getName());
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// 保证这个文件的父文件夹必须要存在
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File parentFile = targetFile.getParentFile();
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if (!parentFile.exists()) {
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parentFile.mkdirs();
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}
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list.add(destDirPath + entry.getName());
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targetFile.createNewFile();
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// 将压缩文件内容写入到这个文件中
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InputStream is = zipFile.getInputStream(entry);
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FileOutputStream fos = new FileOutputStream(targetFile);
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int len;
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byte[] buf = new byte[1024];
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while ((len = is.read(buf)) != -1) {
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fos.write(buf, 0, len);
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}
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// 关流顺序，先打开的后关闭
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fos.close();
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is.close();
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}
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}
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long end = System.currentTimeMillis();
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} catch (Exception e) {
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throw new RuntimeException("unzip error from ZipUtils", e);
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} finally {
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if (zipFile != null) {
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try {
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zipFile.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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}
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}
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return list;
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}
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// 定义一个公共的静态方法zipFolder，用于压缩文件夹
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public static boolean zipFolder(String sourceFolderPath, String zipFilePath) {
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File sourceFile = new File(sourceFolderPath);
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try (
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FileOutputStream fos = new FileOutputStream(zipFilePath);
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ZipOutputStream zos = new ZipOutputStream(fos)
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) {
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zipFile(sourceFile, sourceFile.getName(), zos);
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return true;
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} catch (IOException e) {
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e.printStackTrace();
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}
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return false;
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}
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// 将文件夹整体压缩
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private static void zipFile(File fileToZip, String fileName, ZipOutputStream zos) throws IOException {
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if (fileToZip.isHidden()) {
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return;
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}
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if (fileToZip.isDirectory()) {
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if (fileName.endsWith("/")) {
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zos.putNextEntry(new ZipEntry(fileName));
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zos.closeEntry();
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} else {
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zos.putNextEntry(new ZipEntry(fileName + "/"));
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zos.closeEntry();
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}
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File[] children = fileToZip.listFiles();
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for (File childFile : children) {
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zipFile(childFile, fileName + "/" + childFile.getName(), zos);
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}
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return;
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}
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FileInputStream fis = new FileInputStream(fileToZip);
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ZipEntry zipEntry = new ZipEntry(fileName);
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zos.putNextEntry(zipEntry);
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byte[] bytes = new byte[1024];
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int length;
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while ((length = fis.read(bytes)) >= 0) {
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zos.write(bytes, 0, length);
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}
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fis.close();
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}
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public static void main(String[] args) {
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// 调用方法进行测试
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}
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}
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