MultipartFile和File互转工具类

淩亂°似流年 2024-03-23 19:14 39阅读 0赞

[MultipartFile和File互转工具类\_hutool multipartfile 转file\_苍穹之跃的博客-CSDN博客][MultipartFile_File_hutool multipartfile _file_-CSDN]

上面的不能转视频，只能文档

<dependency>
                <groupId>org.apache.httpcomponents</groupId>
                <artifactId>httpmime</artifactId>
                <version>4.5.8</version>
            </dependency>
     <dependency>
                <groupId>cn.hutool</groupId>
                <artifactId>hutool-all</artifactId>
                <version>5.7.22</version>
            </dependency>

下面的可以视频可以文档

package com.unicom.park.core.util;
     
    import cn.hutool.core.io.unit.DataSize;
    import cn.hutool.core.util.IdUtil;
    import cn.hutool.http.HttpRequest;
    import cn.hutool.http.HttpResponse;
    import com.google.common.collect.ImmutableList;
    import javafx.util.Duration;
    import org.apache.catalina.Manager;
    import org.apache.commons.io.FilenameUtils;
    import org.apache.commons.lang3.StringUtils;
    import org.apache.http.entity.ContentType;
    import org.springframework.mock.web.MockMultipartFile;
    import org.springframework.web.multipart.MultipartFile;
    import javafx.scene.media.Media;
    import javafx.scene.media.MediaPlayer;
    import ws.schild.jave.EncoderException;
    import ws.schild.jave.MultimediaInfo;
    import ws.schild.jave.MultimediaObject;
    
    import  java.io.File;
    
    import java.io.*;
    import java.math.BigDecimal;
    import java.math.RoundingMode;
    import java.net.URL;
    import java.nio.channels.FileChannel;
    import java.util.ArrayList;
    import java.util.List;
    
    /**
     * MultipartFile和File互转工具类
     */
    public class MultipartFileUtil {
     
        /**
         * 输入流转MultipartFile
         *
         * @param fileName
         * @param inputStream
         * @return
         */
        public static MultipartFile getMultipartFile(String fileName, InputStream inputStream) {
            MultipartFile multipartFile = null;
            try {
                multipartFile = new MockMultipartFile(fileName, fileName,
                        ContentType.APPLICATION_OCTET_STREAM.toString(), inputStream);
            } catch (Exception e) {
                e.printStackTrace();
            }
            return multipartFile;
        }
     
        /**
         * 读取网络文件
         *
         * @param url      文件地址
         * @param fileName 文件名称（需带文件名后缀）
         * @return
         */
        public static MultipartFile getMultipartFile(String url, String fileName) {
            HttpResponse response = HttpRequest.get(url).execute();
            InputStream inputStream = response.bodyStream();
            return MultipartFileUtil.getMultipartFile(fileName, inputStream);
        }
    
        /**
         * File 转MultipartFile
         *
         * @param file
         * @return
         */
        public static MultipartFile getMultipartFile(File file) {
            FileInputStream fileInputStream = null;
            MultipartFile multipartFile = null;
            try {
                fileInputStream = new FileInputStream(file);
                multipartFile = new MockMultipartFile(file.getName(), file.getName(),
                        ContentType.APPLICATION_OCTET_STREAM.toString(), fileInputStream);
            } catch (Exception e) {
                e.printStackTrace();
            }
            return multipartFile;
        }
     
        /**
         * MultipartFileUtil 转File
         *
         * @param multipartFile
         * @return
         */
        public static File getFile(MultipartFile multipartFile) {
            // 获取文件名
            String fileName = multipartFile.getOriginalFilename();
            // 获取文件后缀
            String prefix = "." + getExtensionName(fileName);
            File file = null;
            try {
                // 用uuid作为文件名，防止生成的临时文件重复
                file = File.createTempFile(IdUtil.simpleUUID(), prefix);
                // MultipartFile to File
                multipartFile.transferTo(file);
            } catch (IOException e) {
                e.printStackTrace();
            }
            return file;
        }
    
        /**
         * 获取文件扩展名，不带 .
         */
        public static String getExtensionName(String filename) {
            if ((filename != null) && (filename.length() > 0)) {
                int dot = filename.lastIndexOf('.');
                if ((dot > -1) && (dot < (filename.length() - 1))) {
                    return filename.substring(dot + 1);
                }
            }
            return filename;
        }
    
        /**
            前端上传视频之后，根据上传的视频文件获取视频的大小和时长
            1、获取视频时长
        */
        public static int readVideoTime(File source) {
            int vedioSecond =  Integer.parseInt(parseDuration(source.getAbsolutePath()));
            return vedioSecond;
        }
    
    
        /**
         * 视频时长
         *
         * @param fileUrl
         * @return String[] 0=秒时长，1=展示时长（格式如 01:00:00）
         */
        public static String parseDuration(String fileUrl) {
            long ls = 0L;
            String[] length = new String[2];
            try {
                //
    //            URL source = new URL(fileUrl);
                // 构造方法 接受URL对象
    //            MultimediaObject instance = new MultimediaObject(source);
                // 构造方法 接受File对象
                MultimediaObject instance = new MultimediaObject(new File(fileUrl));
                MultimediaInfo result = instance.getInfo();
                ls = result.getDuration() / 1000;
                length[0] = String.valueOf(ls);
                Integer hour = (int) (ls / 3600);
                Integer minute = (int) (ls % 3600) / 60;
                Integer second = (int) (ls - hour * 3600 - minute * 60);
                String hr = hour.toString();
                String mi = minute.toString();
                String se = second.toString();
                if (hr.length() < 2) {
                    hr = "0" + hr;
                }
                if (mi.length() < 2) {
                    mi = "0" + mi;
                }
                if (se.length() < 2) {
                    se = "0" + se;
                }
    
                String noHour = "00";
                if (noHour.equals(hr)) {
                    length[1] = mi + ":" + se;
                } else {
                    length[1] = hr + ":" + mi + ":" + se;
                }
    
            } catch (Exception e) {
                e.printStackTrace();
            }
            System.out.println(length);//{"20","00:20"}
            return String.valueOf(ls);
        }
    
    
    
     
    
    
        /**
         * 2、获取文件大小
         * @param source
         * @return
         * //***获取视频大小的时候，由于用到了流，使用完之后一定要及时的关闭流，避免无法删除视频文件***
         *
         */
        public static BigDecimal readFileSize(File source) {
            //cn.hutool.core.io.unit.DataSize.ofMegabytes()
            FileChannel fc= null;
            //String size = "";
            BigDecimal  size  = null ;
            try {
                @SuppressWarnings("resource")
                FileInputStream fis = new FileInputStream(source);
                fc= fis.getChannel();
                BigDecimal fileSize = new BigDecimal(fc.size());
                //size = fileSize.divide(new BigDecimal(1048576), 2, RoundingMode.HALF_UP) + "MB";
                size = fileSize.divide(new BigDecimal(1024*1024), 2, RoundingMode.HALF_UP)  ;
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                if (null!=fc){
                    try{
                        fc.close();
                    }catch(IOException e){
                        e.printStackTrace();
                    }
                }
            }
            return size;
        }
    
    
    }

可以转换文档可以转换视频

<dependency>
                     <groupId>ws.schild</groupId>
                    <artifactId>jave-all-deps</artifactId>
                    <version>2.6.0</version>
                </dependency>

package com.unicom.park.core.util;
     
    import cn.hutool.core.io.unit.DataSize;
    import cn.hutool.core.util.IdUtil;
    import cn.hutool.http.HttpRequest;
    import cn.hutool.http.HttpResponse;
    import com.google.common.collect.ImmutableList;
    import javafx.util.Duration;
    import org.apache.catalina.Manager;
    import org.apache.commons.io.FilenameUtils;
    import org.apache.commons.lang3.StringUtils;
    import org.apache.http.entity.ContentType;
    import org.springframework.mock.web.MockMultipartFile;
    import org.springframework.web.multipart.MultipartFile;
    import javafx.scene.media.Media;
    import javafx.scene.media.MediaPlayer;
    import ws.schild.jave.EncoderException;
    import ws.schild.jave.MultimediaInfo;
    import ws.schild.jave.MultimediaObject;
    
    import  java.io.File;
    
    import java.io.*;
    import java.math.BigDecimal;
    import java.math.RoundingMode;
    import java.net.URL;
    import java.nio.channels.FileChannel;
    import java.util.ArrayList;
    import java.util.List;
    
    /**
     * MultipartFile和File互转工具类
     */
    public class MultipartFileUtil {
     
        /**
         * 输入流转MultipartFile
         *
         * @param fileName
         * @param inputStream
         * @return
         */
        public static MultipartFile getMultipartFile(String fileName, InputStream inputStream) {
            MultipartFile multipartFile = null;
            try {
                multipartFile = new MockMultipartFile(fileName, fileName,
                        ContentType.APPLICATION_OCTET_STREAM.toString(), inputStream);
            } catch (Exception e) {
                e.printStackTrace();
            }
            return multipartFile;
        }
     
        /**
         * 读取网络文件
         *
         * @param url      文件地址
         * @param fileName 文件名称（需带文件名后缀）
         * @return
         */
        public static MultipartFile getMultipartFile(String url, String fileName) {
            HttpResponse response = HttpRequest.get(url).execute();
            InputStream inputStream = response.bodyStream();
            return MultipartFileUtil.getMultipartFile(fileName, inputStream);
        }
    
        /**
         * File 转MultipartFile
         *
         * @param file
         * @return
         */
        public static MultipartFile getMultipartFile(File file) {
            FileInputStream fileInputStream = null;
            MultipartFile multipartFile = null;
            try {
                fileInputStream = new FileInputStream(file);
                multipartFile = new MockMultipartFile(file.getName(), file.getName(),
                        ContentType.APPLICATION_OCTET_STREAM.toString(), fileInputStream);
            } catch (Exception e) {
                e.printStackTrace();
            }
            return multipartFile;
        }
     
        /**
         * MultipartFileUtil 转File
         *
         * @param multipartFile
         * @return
         */
        public static File getFile(MultipartFile multipartFile) {
            // 获取文件名
            String fileName = multipartFile.getOriginalFilename();
            // 获取文件后缀
            String prefix = "." + getExtensionName(fileName);
            File file = null;
            try {
                // 用uuid作为文件名，防止生成的临时文件重复
                file = File.createTempFile(IdUtil.simpleUUID(), prefix);
                // MultipartFile to File
                multipartFile.transferTo(file);
            } catch (IOException e) {
                e.printStackTrace();
            }
            return file;
        }
    
        /**
         * 获取文件扩展名，不带 .
         */
        public static String getExtensionName(String filename) {
            if ((filename != null) && (filename.length() > 0)) {
                int dot = filename.lastIndexOf('.');
                if ((dot > -1) && (dot < (filename.length() - 1))) {
                    return filename.substring(dot + 1);
                }
            }
            return filename;
        }
    
        /**
            前端上传视频之后，根据上传的视频文件获取视频的大小和时长
            1、获取视频时长
        */
        public static int readVideoTime(File source) {
            int vedioSecond =  Integer.parseInt(parseDuration(source.getAbsolutePath()));
            return vedioSecond;
        }
    
    
        /**
         * 视频时长
         *
         * @param fileUrl
         * @return String[] 0=秒时长，1=展示时长（格式如 01:00:00）
         */
        public static String parseDuration(String fileUrl) {
            long ls = 0L;
            String[] length = new String[2];
            try {
                //
    //            URL source = new URL(fileUrl);
                // 构造方法 接受URL对象
    //            MultimediaObject instance = new MultimediaObject(source);
                // 构造方法 接受File对象
                MultimediaObject instance = new MultimediaObject(new File(fileUrl));
                MultimediaInfo result = instance.getInfo();
                ls = result.getDuration() / 1000;
                length[0] = String.valueOf(ls);
                Integer hour = (int) (ls / 3600);
                Integer minute = (int) (ls % 3600) / 60;
                Integer second = (int) (ls - hour * 3600 - minute * 60);
                String hr = hour.toString();
                String mi = minute.toString();
                String se = second.toString();
                if (hr.length() < 2) {
                    hr = "0" + hr;
                }
                if (mi.length() < 2) {
                    mi = "0" + mi;
                }
                if (se.length() < 2) {
                    se = "0" + se;
                }
    
                String noHour = "00";
                if (noHour.equals(hr)) {
                    length[1] = mi + ":" + se;
                } else {
                    length[1] = hr + ":" + mi + ":" + se;
                }
    
            } catch (Exception e) {
                e.printStackTrace();
            }
            System.out.println(length);//{"20","00:20"}
            return String.valueOf(ls);
        }
    
    
    
    
    
    
        /**
         * 2、获取文件大小
         * @param source
         * @return
         * //***获取视频大小的时候，由于用到了流，使用完之后一定要及时的关闭流，避免无法删除视频文件***
         *
         */
        public static BigDecimal readFileSize(File source) {
            //cn.hutool.core.io.unit.DataSize.ofMegabytes()
            FileChannel fc= null;
            //String size = "";
            BigDecimal  size  = null ;
            try {
                @SuppressWarnings("resource")
                FileInputStream fis = new FileInputStream(source);
                fc= fis.getChannel();
                BigDecimal fileSize = new BigDecimal(fc.size());
                //size = fileSize.divide(new BigDecimal(1048576), 2, RoundingMode.HALF_UP) + "MB";
                size = fileSize.divide(new BigDecimal(1024*1024), 2, RoundingMode.HALF_UP)  ;
            } catch (FileNotFoundException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            } finally {
                if (null!=fc){
                    try{
                        fc.close();
                    }catch(IOException e){
                        e.printStackTrace();
                    }
                }
            }
            return size;
        }
    
    
    }

[MultipartFile_File_hutool multipartfile _file_-CSDN]: https://blog.csdn.net/wenxingchen/article/details/125006984