从zip中读取文件合并到指定的文件中

引入 commons-io 版本可以选择更高的版本

   <dependency><groupId>commons-io</groupId><artifactId>commons-io</artifactId><version>2.4</version></dependency>

具体代码如下：

package work;import java.io.*;
import java.nio.charset.Charset;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipInputStream;/*** @author  qianxl*/
public class ZipCopyTools {public static void batchCopyZipContentToDirectory(String[] source, String des) {InputStream in = null;ZipInputStream zin = null;try {for (String src : source) {//读取文件路径//String path = "C:\\Users\\Administrator\\Desktop\\sql改造\\sql改造补丁\\medext_mm\\temp\\patch_mmmps_medext_1622031243072.zip";String path = src;//存储文件目录路径//String des = "C:/Users/Administrator/Desktop/sql改造/desc/";ZipFile zf = new ZipFile(path);//获取zip 文件格式String zipEncode = getCharsetFromSourceFile(path);System.out.println(zf.getName() + zipEncode + "fileEncode");// 文件输入流in = new BufferedInputStream(new FileInputStream(path));// zip文件的编码格式Charset charset = Charset.forName(zipEncode);// This class implements an input stream filter for reading files in the ZIP file format.zin = new ZipInputStream(in, Charset.forName(zipEncode));// 压缩文件实体ZipEntry ze;String zipDirectory = path.substring(0, path.lastIndexOf("."));while ((ze = zin.getNextEntry()) != null) {// 压缩文件的绝对路径//String zipFilePath = zipDirectory +"/"+ ze.toString();// 获取.class .java 文件的压缩格式// String fileEncode = getCharsetFromSourceFile(zipFilePath);String fileEncode =zipEncode;if (ze.toString().endsWith("java") || ze.toString().endsWith("class")) {BufferedReader br = new BufferedReader(new InputStreamReader(zf.getInputStream(ze), fileEncode));//String fieldPath = ze.getName().toString();//获取zip文件路径path = fieldPath;// 获取压缩文件 .java .class 的路径String directory = fieldPath.substring(0, fieldPath.lastIndexOf("/"));//创建文件夹boolean mkdirs = new File(des + directory).mkdirs();// 目的文件.class .java 文件的路径path = des + path;BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(new File(path)), fileEncode));String line;while ((line = br.readLine()) != null) {System.out.println(line.toString());bw.write(line.toString());bw.write(System.getProperties().getProperty("line.separator"));}bw.flush();bw.close();br.close();}System.out.println();}zin.closeEntry();}} catch (IOException e) {e.printStackTrace();} finally {close(zin, in);}}public static void main(String[] args) {String des = "C:/Users/Administrator/Desktop/desc/";//String source = String filedesc = "C:\\Users\\Administrator\\Desktop\\descfile\\";List<File> fileList = new ArrayList<>();List<File> zips = getSuffixFilePaths(fileList, filedesc, "zip");// 返回 zip 文件数组值// System.out.println(zips.get(0).getAbsoluteFile());String[] src = zips.stream().map(p -> {return getAvailablePath(p);}).toArray(String[]::new);batchCopyZipContentToDirectory(src, des);}/*** getFileDirectory** @param fileList* @Return getFileDirectory <java.util.List<java.lang.String>>*/public static List<String> getFileDirectory(List<File> fileList) {fileList.stream().forEach(p -> {p.getPath().substring(0, p.getPath().lastIndexOf("/"));});return null;}/*** 获取文件编码** @param fileName* @return* @throws IOException https://my.oschina.net/davz/blog/4470673*/private static String getCharsetFromSourceFile(String fileName) throws IOException {BufferedInputStream bin = new BufferedInputStream(new FileInputStream(fileName));int p = (bin.read() << 8) + bin.read();String code = null;switch (p) {case 0xefbb:code = "UTF-8";break;case 0xfffe:code = "Unicode";break;case 0xfeff:code = "UTF-16BE";break;default:code = "GBK";}return code;}/*** 关闭给定的io流** @url https://blog.csdn.net/u012250875/article/details/78341874*/public static void close(Closeable... closes) {for (Closeable closeable : closes) {try {if (closeable != null) {closeable.close();}} catch (IOException e) {e.printStackTrace();}}}/*** getAvailablePath* *@param  file** @Return getAvailablePath <java.lang.String>*/private static String getAvailablePath(File file) {return file.getPath().replace('\\', '/');}/*** getSuffixFilePaths** @param fileList* @param path* @param fileSuffix* @Return getSuffixFilePaths <java.util.List<java.io.File>>*/public static List<File> getSuffixFilePaths(List<File> fileList, String path, String fileSuffix) {File file = new File(path);File[] files = file.listFiles();if (files == null) {return null;} else {for (int i = 0; i < files.length; i++) {// 判断是否是文件夹if (files[i].isDirectory()) {// 递归调用getFiles方法，得到所有的文件getSuffixFilePaths(fileList, getAvailablePath(files[i]), fileSuffix);// 只处理fileSuffix后缀的文档} else if (files[i].getName().lastIndexOf(fileSuffix) != -1) {// copyFileAndAddPackageName(files[i]);// 添加到文件集合中fileList.add(files[i]);}/// System.out.println(files[i].getAbsolutePath().replace('//',/// '/'));}}return fileList;}// 读取xml 文件 并将xml 文件中的文件}/*** 文件的路径* @param fileName*/// 堆栈方式实现public static void loopDeleteFields(File fileName) {Stack<File> stack = new Stack<>();// 存储文件夹Stack<File> stackDir= new Stack<>();// stack 初始化stack.add(fileName);stackDir.add(fileName);while (!stack.isEmpty()) {// 弹出fileFile file = stack.pop();File[] files = file.listFiles();if (files != null && files.length > 0) {for (File f : files) {if (f.isDirectory()) {stack.add(f);//存储文件夹  先进后出 FILOstackDir.add(f);} else {f.delete();}}}}// 删除文件夹while (!stackDir.isEmpty()){File file = stackDir.pop();file.delete();}// System.out.println("删除--");}