package org.springblade.common.utils;
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import java.io.*;
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import java.nio.channels.FileChannel;
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import java.util.List;
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import net.lingala.zip4j.core.ZipFile;
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import org.springframework.mock.web.MockMultipartFile;
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import org.springframework.web.multipart.MultipartFile;
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public class FileUtil {
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public static void clearFiles(String workspaceRootPath) {
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File file = new File(workspaceRootPath);
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deleteFile(file);
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}
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public static void deleteFile(File file) {
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if (file.exists()) {
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if (file.isDirectory()) {
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File[] files = file.listFiles();
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for (int i = 0; i < files.length; i++) {
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deleteFile(files[i]);
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}
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}
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}
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file.delete();
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}
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public static void fileWrite(String str, String fileNamePath) throws IOException {
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FileWriter writer = null;
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try {
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File file = new File(fileNamePath);
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if (!file.getParentFile().exists()) {
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file.getParentFile().mkdirs();
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file.createNewFile();
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}
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writer = new FileWriter(file, true);
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writer.write(str + System.getProperty("line.separator"));
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} catch (IOException e) {
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} finally {
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if (writer != null) {
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writer.close();
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}
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}
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}
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public static File mkFile(String fileName) {
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File f = new File(fileName);
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try {
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if (f.exists()) {
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f.delete();
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}
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f.createNewFile();
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} catch (IOException e) {
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e.printStackTrace();
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}
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return f;
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}
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public static void copyDirAndFile(String oldPath, String newPath) throws IOException {
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if (!(new File(newPath)).exists()) {
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(new File(newPath)).mkdir();
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}
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File file = new File(oldPath);
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//file name list
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String[] filePaths = file.list();
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for (String filePath : filePaths) {
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String oldFullPath = oldPath + file.separator + filePath;
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String newFullPath = newPath + file.separator + filePath;
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File oldFile = new File(oldFullPath);
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File newFile = new File(newFullPath);
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if (oldFile.isDirectory()) {
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copyDirAndFile(oldFullPath, newFullPath);
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} else if (oldFile.isFile()) {
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copyFile(oldFile, newFile);
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}
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}
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}
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public static void copyFile(File source, File dest) throws IOException {
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FileChannel inputChannel = null;
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FileChannel outputChannel = null;
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try {
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inputChannel = new FileInputStream(source).getChannel();
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outputChannel = new FileOutputStream(dest).getChannel();
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outputChannel.transferFrom(inputChannel, 0, inputChannel.size());
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} finally {
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inputChannel.close();
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outputChannel.close();
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}
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}
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/**
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*
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* 解压zip 包
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* @author panchaoyuan
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* @param srcFile Unzipped file
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* @param destDirPath Unzipped destination folder
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* @throws RuntimeException
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* @throws IOException
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*/
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public static void unZip(MultipartFile srcFile, String destDirPath,String savePath) throws RuntimeException, IOException {
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File file = null;
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InputStream ins = srcFile.getInputStream();
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String savaPaths = savePath+srcFile.getOriginalFilename();
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System.out.println("savaPaths = " + savaPaths);
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file=new File(savaPaths);
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inputStreamToFile(ins, file);
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if (!file.exists()) {
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throw new RuntimeException(file.getPath() + ",file is not found");
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}
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ZipFile zipFile = null;
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try {
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zipFile = new ZipFile(file);
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// zipFile.setFileNameCharset("utf-8");
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zipFile.setFileNameCharset("gbk");
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//解压到 destDirPath
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zipFile.extractAll(destDirPath);
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}catch(Exception e) {
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throw new RuntimeException("unzip error from FileUtil", e);
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}
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}
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/**
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* 输入流转换为文件
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* @author panchaoyuan
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* @return
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*/
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private static void inputStreamToFile(InputStream ins, File file) {
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try {
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OutputStream os = new FileOutputStream(file);
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int bytesRead = 0;
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byte[] buffer = new byte[8192];
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while ((bytesRead = ins.read(buffer, 0, 8192)) != -1) {
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os.write(buffer, 0, bytesRead);
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}
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os.close();
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ins.close();
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}catch(Exception e) {
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e.printStackTrace();
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}
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}
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/**
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* 获取解压出来的图片
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* @author arsn
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* @return
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*/
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public List<MultipartFile> getSubFiles(String desFile,List<MultipartFile> fileList){
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//取出图片数据遍历
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File file = new File(desFile);
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File[] files = file.listFiles();
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for (File fileIndex : files) {
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if (!fileIndex.exists()) {
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throw new NullPointerException("Cannot find " + fileIndex);
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} else if (fileIndex.isFile()) {
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try {
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//将 file 转换为 MultipartFile
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File file1 = new File(desFile+File.separator + fileIndex.getName());
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FileInputStream fileInputStream = new FileInputStream(file1);
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MockMultipartFile mockMultipartFile = null;
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try {
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String name = fileIndex.getName();
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mockMultipartFile = new MockMultipartFile(name,fileInputStream);
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} catch (IOException e) {
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e.printStackTrace();
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}
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fileList.add(mockMultipartFile);
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} catch (FileNotFoundException e) {
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e.printStackTrace();
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}
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} else {
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if (fileIndex.isDirectory()) {
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getSubFiles(fileIndex.getAbsolutePath(),fileList);
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}
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}
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}
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return fileList;
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}
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}
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