文件上传工具类

FileUtil.java

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package com.cmbchina.ccd.itpm.utils;   import org.springframework.web.multipart.MultipartFile;   import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.util.UUID;   import static org.apache.tomcat.util.http.fileupload.FileUtils.cleanDirectory;   public class FileUtil {     private FileUtil() {       }       public static void uploadFile(byte[] file, String filePath, String fileName) throws IOException {         File targetFile = new File(filePath);         if (!targetFile.exists()) {             if (!targetFile.mkdirs()) {                 throw new IOException();             }         }         FileOutputStream out = null;         try {             out = new FileOutputStream(filePath + fileName);             out.write(file);             out.flush();         } catch (IOException e) {             throw new IOException();         } finally {             if (out != null) {                 out.close();             }         }     }       public static boolean deleteFile(String fileName) {         File file = new File(fileName);         // 如果文件路径所对应的文件存在，并且是一个文件，则直接删除         if (file.exists() && file.isFile()) {             if (file.delete()) {                 return true;             } else {                 return false;             }         }         return false;       }       public static String renameToUUID(String fileName) {         return UUID.randomUUID() + "." + fileName.substring(fileName.lastIndexOf(".") + 1);     }       /**      * 文件删除方法      *      * @param fileAddress      * @return      */     public static boolean deleteQuietly(String fileAddress) {         File file = new File(fileAddress);         if (file == null) {             return false;         } else {             try {                 if (file.isDirectory()) {                     cleanDirectory(file);                 }             } catch (Exception var3) {                 ;             }               try {                 return file.delete();             } catch (Exception var2) {                 return false;             }         }     }       /**      * 文件保存方法      *      * @param file      * @param destination      * @return      * @throws IllegalStateException      * @throws IOException      */     public static String saveFile(MultipartFile file, String destination) throws IllegalStateException, IOException {         // 获取上传的文件名称，并结合存放路径，构建新的文件名称         String filename = file.getOriginalFilename();         File filepath = new File(destination, filename);           // 判断路径是否存在，不存在则新创建一个         if (!filepath.getParentFile().exists()) {             filepath.getParentFile().mkdirs();         }           // 将上传文件保存到目标文件目录         file.transferTo(new File(destination + File.separator + filename));         String fileMD5String = MD5Util.getFileMD5String(new File(destination + File.separator + filename));         return fileMD5String;     }   }