java 上传视频后的路径_Java上传视频（mencoder）

本是古典何须时尚 2022-11-03 04:25 243阅读 0赞

![48304ba5e6f9fe08f3fa1abda7d326ab.png][]

import java.io.File;

import java.io.IOException;

import java.sql.Timestamp;

import java.text.DecimalFormat;

import java.util.Arrays;

import java.util.Iterator;

import javax.servlet.http.HttpServletRequest;

import model.FileEntity;

import org.springframework.web.multipart.MultipartFile;

public class FileUploadTool \{

TransfMediaTool transfMediaTool = new TransfMediaTool();

// 文件最大500M

private static long upload\_maxsize = 800 \* 1024 \* 1024;

// 文件允许格式

private static String\[\] allowFiles = \{ ".rar", ".doc", ".docx", ".zip",

".pdf", ".txt", ".swf", ".xlsx", ".gif", ".png", ".jpg", ".jpeg",

".bmp", ".xls", ".mp4", ".flv", ".ppt", ".avi", ".mpg", ".wmv",

".3gp", ".mov", ".asf", ".asx", ".vob", ".wmv9", ".rm", ".rmvb" \};

// 允许转码的视频格式(ffmpeg)

private static String\[\] allowFLV = \{ ".avi", ".mpg", ".wmv", ".3gp",

".mov", ".asf", ".asx", ".vob" \};

// 允许的视频转码格式(mencoder)

private static String\[\] allowAVI = \{ ".wmv9", ".rm", ".rmvb" \};

public FileEntity createFile(MultipartFile multipartFile, HttpServletRequest request) \{

FileEntity entity = new FileEntity();

boolean bflag = false;

String fileName = multipartFile.getOriginalFilename().toString();

// 判断文件不为空

if (multipartFile.getSize() != 0 && !multipartFile.isEmpty()) \{

bflag = true;

// 判断文件大小

if (multipartFile.getSize() <= upload\_maxsize) \{

bflag = true;

// 文件类型判断

if (this.checkFileType(fileName)) \{

bflag = true;

\} else \{

bflag = false;

System.out.println("文件类型不允许");

\} else \{

bflag = false;

System.out.println("文件大小超范围");

\} else \{

bflag = false;

System.out.println("文件为空");

if (bflag) \{

String logoPathDir = "/video/";

String logoRealPathDir = request.getSession().getServletContext().getRealPath(logoPathDir);

// 上传到本地磁盘

// String logoRealPathDir = "E:/upload";

File logoSaveFile = new File(logoRealPathDir);

if (!logoSaveFile.exists()) \{

logoSaveFile.mkdirs();

String name = fileName.substring(0, fileName.lastIndexOf("."));

System.out.println("文件名称：" + name);

// 新的文件名

String newFileName = this.getName(fileName);

// 文件扩展名

String fileEnd = this.getFileExt(fileName);

// 绝对路径

String fileNamedirs = logoRealPathDir + File.separator + newFileName + fileEnd;

System.out.println("保存的绝对路径：" + fileNamedirs);

File filedirs = new File(fileNamedirs);

// 转入文件

try \{

multipartFile.transferTo(filedirs);

\} catch (IllegalStateException e) \{

e.printStackTrace();

\} catch (IOException e) \{

e.printStackTrace();

// 相对路径

entity.setType(fileEnd);

String fileDir = logoPathDir + newFileName + fileEnd;

StringBuilder builder = new StringBuilder(fileDir);

String finalFileDir = builder.substring(1);

// size存储为String

String size = this.getSize(filedirs);

// 源文件保存路径

String aviPath = filedirs.getAbsolutePath();

// 转码Avi

// boolean flag = false;

if (this.checkAVIType(fileEnd)) \{

// 设置转换为AVI格式后文件的保存路径

String codcAviPath = logoRealPathDir + File.separator + newFileName + ".avi";

// 获取配置的转换工具(mencoder.exe)的存放路径

String mencoderPath = request.getSession().getServletContext().getRealPath("/tools/mencoder.exe");

aviPath = transfMediaTool.processAVI(mencoderPath, filedirs.getAbsolutePath(), codcAviPath);

fileEnd = this.getFileExt(codcAviPath);

if (aviPath != null) \{

// 转码Flv

if (this.checkMediaType(fileEnd)) \{

try \{

// 设置转换为flv格式后文件的保存路径

String codcFilePath = logoRealPathDir + File.separator + newFileName + ".flv";

// 获取配置的转换工具(ffmpeg.exe)的存放路径

String ffmpegPath = request.getSession().getServletContext().getRealPath("/tools/ffmpeg.exe");

transfMediaTool.processFLV(ffmpegPath, aviPath, codcFilePath);

fileDir = logoPathDir + newFileName + ".flv";

builder = new StringBuilder(fileDir);

finalFileDir = builder.substring(1);

\} catch (Exception e) \{

e.printStackTrace();

entity.setSize(size);

entity.setPath(finalFileDir);

entity.setTitleOrig(name);

entity.setTitleAlter(newFileName);

Timestamp timestamp = new Timestamp(System.currentTimeMillis());

entity.setUploadTime(timestamp);

return entity;

\} else \{

return null;

\} else \{

return null;

/\*\*

\* 文件类型判断

\* @param fileName

\* @return

\*/

private boolean checkFileType(String fileName) \{

Iterator type = Arrays.asList(allowFiles).iterator();

while (type.hasNext()) \{

String ext = type.next();

if (fileName.toLowerCase().endsWith(ext)) \{

return true;

return false;

/\*\*

\* 视频类型判断(flv)

\* @param fileName

\* @return

\*/

private boolean checkMediaType(String fileEnd) \{

Iterator type = Arrays.asList(allowFLV).iterator();

while (type.hasNext()) \{

String ext = type.next();

if (fileEnd.equals(ext)) \{

return true;

return false;

/\*\*

\* 视频类型判断(AVI)

\* @param fileName

\* @return

\*/

private boolean checkAVIType(String fileEnd) \{

Iterator type = Arrays.asList(allowAVI).iterator();

while (type.hasNext()) \{

String ext = type.next();

if (fileEnd.equals(ext)) \{

return true;

return false;

/\*\*

\* 获取文件扩展名

\* @return string

\*/

private String getFileExt(String fileName) \{

return fileName.substring(fileName.lastIndexOf("."));

/\*\*

\* 依据原始文件名生成新文件名

\* @return

\*/

private String getName(String fileName) \{

Iterator type = Arrays.asList(allowFiles).iterator();

while (type.hasNext()) \{

String ext = type.next();

if (fileName.contains(ext)) \{

String newFileName = fileName.substring(0, fileName.lastIndexOf(ext));

return newFileName;

return "";

/\*\*

\* 文件大小，返回kb.mb

\* @return

\*/

private String getSize(File file) \{

String size = "";

long fileLength = file.length();

DecimalFormat df = new DecimalFormat("\#.00");

if (fileLength < 1024) \{

size = df.format((double) fileLength) + "BT";

\} else if (fileLength < 1048576) \{

size = df.format((double) fileLength / 1024) + "KB";

\} else if (fileLength < 1073741824) \{

size = df.format((double) fileLength / 1048576) + "MB";

\} else \{

size = df.format((double) fileLength / 1073741824) + "GB";

return size;

![48304ba5e6f9fe08f3fa1abda7d326ab.png][]

[48304ba5e6f9fe08f3fa1abda7d326ab.png]: /images/20221024/5221068be0de48bd86dab9d251a965d8.png

java 上传视频后的路径_Java上传视频（mencoder）

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