package com.whyc.util;
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import org.springframework.web.multipart.MultipartFile;
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import javax.servlet.http.HttpServletResponse;
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import java.io.*;
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import java.net.URLEncoder;
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import java.util.ArrayList;
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import java.util.List;
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public class FileUtil {
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public static List<String> getStaticFilePath(File file, List<String> list){
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//如果是文件的情况
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if (file.isFile()){
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list.add(file.getAbsolutePath());
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}else{
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//如果是目录的情况
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//创建一个File数组来存储当前目录下所有文件和目录的绝对路径
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File[] files = file.listFiles();
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//循环遍历files
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for (File fileTemp : files){
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if(fileTemp.getName().contains(".zip")){
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continue;
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}
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//子级是目录
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if (fileTemp.isDirectory()){
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//递归再次进行判断
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getStaticFilePath(fileTemp, list);
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}else{
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//子级是文件
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String absolutePath = fileTemp.getAbsolutePath();
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list.add(absolutePath);
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//System.out.println(temp + "文件 :" + fileTemp.getName() + "\t");
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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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public static Boolean deleteFile(File file) {
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//判断文件不为null或文件目录存在
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if (file == null || !file.exists()) {
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System.out.println("文件删除失败,请检查文件是否存在以及文件路径是否正确");
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return false;
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}
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//获取目录下子文件
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File[] files = file.listFiles();
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//遍历该目录下的文件对象
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for (File f : files) {
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//判断子目录是否存在子目录,如果是文件则删除
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if (f.isDirectory()) {
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//递归删除目录下的文件
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deleteFile(f);
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} else {
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//文件删除
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f.delete();
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//打印文件名
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}
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}
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//文件夹删除
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file.delete();
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return true;
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}
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public static void download(HttpServletResponse resp,String inFilePath,String outFileFullName){
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try {
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// 转码防止乱码
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//resp.addHeader("Content-Disposition", "attachment;filename=" + new String(softwareName.getBytes("UTF-8"), "ISO8859-1"));
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resp.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode ( outFileFullName, "utf-8"));
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OutputStream out = resp.getOutputStream();
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FileInputStream in = new FileInputStream(inFilePath);
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int len=0;
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byte[] buffer =new byte[1024];
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//7. 将缓冲区中的数据输出
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while ((len=in.read(buffer))>0){
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out.write(buffer,0,len);
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}
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in.close();
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out.close();
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} catch (FileNotFoundException | UnsupportedEncodingException e) {
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e.printStackTrace();
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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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public static String saveFile(MultipartFile multipartFile,String fileName) throws IOException {
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String rootFile = CommonUtil.getRootFile();
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String filePath = rootFile + fileName;
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File file = new File(filePath);
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File parentFile = file.getParentFile();
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if(!parentFile.exists()){
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parentFile.mkdirs();
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}
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//存储
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multipartFile.transferTo(file);
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return "doc_file"+fileName;
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}
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public static void main(String[] args) {
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File file = new File("C:\\Users\\29550\\Desktop\\当前项目\\202207泰州平台");
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List list = new ArrayList<>();
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list = getStaticFilePath( file,list);
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System.out.println(list);
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}
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}
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