Java上传视频实例代码

页面：

上传文件时的关键词：enctype="multipart/form-data"

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
　　String path = request.getContextPath();
　　String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
  <base href="<%=basePath%>" rel="external nofollow" >
  <title>上传视频</title>
  <meta http-equiv="pragma" content="no-cache">
  <meta http-equiv="cache-control" content="no-cache">
  <meta http-equiv="expires" content="0">
  <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
  <meta http-equiv="description" content="This is my page">
</head>
<body>
  <div class="panel panel-default">
    <div class="panel-body">
      <div class="panel-heading" align="center"><h1 class="sub-header h3">文件上传</h1></div>
        <hr>
      <form class="form-horizontal" id="upload" method="post" action="uploadflv/upload.do" enctype="multipart/form-data">
        <div class="form-group" align="center">
          <div class="col-md-4 col-sm-4 col-xs-4 col-lg-4">文件上传
            <input type="file" class="form-control" name="file" id="file"><br>
            <input type="submit" value="上传">
          </div>
        </div>
      </form>
    </div>
  </div>
</body>
</html>

后台：

controller

import javax.servlet.http.HttpServletRequest;
import model.FileEntity;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.servlet.ModelAndView;
@Controller
@RequestMapping("/uploadflv")
public class UploadController {
  @RequestMapping(value = "/upload", method={RequestMethod.POST,RequestMethod.GET})
  @ResponseBody
  public ModelAndView upload(@RequestParam(value = "file", required = false) MultipartFile multipartFile,
      HttpServletRequest request, ModelMap map) {
    String message = "";
    FileEntity entity = new FileEntity();
    FileUploadTool fileUploadTool = new FileUploadTool();
    try {
      entity = fileUploadTool.createFile(multipartFile, request);
      if (entity != null) {
//        service.saveFile(entity);
        message = "上传成功";
        map.put("entity", entity);
        map.put("result", message);
      } else {
        message = "上传失败";
        map.put("result", message);
      }
    } catch (Exception e) {
      e.printStackTrace();
    }
    return new ModelAndView("result", map);
  }
}

工具类

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<String> 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<String> 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<String> 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<String> 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;
  }
}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.List;
public class TransfMediaTool {
  /**
   * 视频转码flv
   *
   * @param ffmpegPath
   *      转码工具的存放路径
   * @param upFilePath
   *      用于指定要转换格式的文件,要截图的视频源文件
   * @param codcFilePath
   *      格式转换后的的文件保存路径
   * @return
   * @throws Exception
   */
  public void processFLV(String ffmpegPath, String upFilePath, String codcFilePath) {
    // 创建一个List集合来保存转换视频文件为flv格式的命令
    List<String> convert = new ArrayList<String>();
    convert.add(ffmpegPath); // 添加转换工具路径
    convert.add("-i"); // 添加参数＂-i＂，该参数指定要转换的文件
    convert.add(upFilePath); // 添加要转换格式的视频文件的路径
    convert.add("-ab");
    convert.add("56");
    convert.add("-ar");
    convert.add("22050");
    convert.add("-q:a");
    convert.add("8");
    convert.add("-r");
    convert.add("15");
    convert.add("-s");
    convert.add("600*500");
    /*
     * convert.add("-qscale"); // 指定转换的质量 convert.add("6");
     * convert.add("-ab"); // 设置音频码率 convert.add("64"); convert.add("-ac");
     * // 设置声道数 convert.add("2"); convert.add("-ar"); // 设置声音的采样频率
     * convert.add("22050"); convert.add("-r"); // 设置帧频 convert.add("24");
     * convert.add("-y"); // 添加参数＂-y＂，该参数指定将覆盖已存在的文件
     */
    convert.add(codcFilePath);
    try {
      Process videoProcess = new ProcessBuilder(convert).redirectErrorStream(true).start();
      new PrintStream(videoProcess.getInputStream()).start();
      videoProcess.waitFor();
    } catch (IOException e1) {
      e1.printStackTrace();
    } catch (InterruptedException e) {
      e.printStackTrace();
    }
  }
  /**
   * 对ffmpeg无法解析的文件格式(wmv9，rm，rmvb等), 先用mencoder转换为avi(ffmpeg能解析的)格式
   *
   * @param mencoderPath
   *      转码工具的存放路径
   * @param upFilePath
   *      用于指定要转换格式的文件,要截图的视频源文件
   * @param codcFilePath
   *      格式转换后的的文件保存路径
   * @return
   * @throws Exception
   */
  public String processAVI(String mencoderPath, String upFilePath, String codcAviPath) {
//    boolean flag = false;
    List<String> commend = new ArrayList<String>();
    commend.add(mencoderPath);
    commend.add(upFilePath);
    commend.add("-oac");
    commend.add("mp3lame");
    commend.add("-lameopts");
    commend.add("preset=64");
    commend.add("-lavcopts");
    commend.add("acodec=mp3:abitrate=64");
    commend.add("-ovc");
    commend.add("xvid");
    commend.add("-xvidencopts");
    commend.add("bitrate=600");
    commend.add("-of");
    commend.add("avi");
    commend.add("-o");
    commend.add(codcAviPath);
    try {
      // 预处理进程
      ProcessBuilder builder = new ProcessBuilder();
      builder.command(commend);
      builder.redirectErrorStream(true);
      // 进程信息输出到控制台
      Process p = builder.start();
      BufferedReader br = new BufferedReader(new InputStreamReader(p.getInputStream()));
      String line = null;
      while ((line = br.readLine()) != null) {
        System.out.println(line);
      }
      p.waitFor();// 直到上面的命令执行完，才向下执行
      return codcAviPath;
    } catch (Exception e) {
      e.printStackTrace();
      return null;
    }
  }
}
class PrintStream extends Thread {
  java.io.InputStream __is = null;
  public PrintStream(java.io.InputStream is) {
    __is = is;
  }
  public void run() {
    try {
      while (this != null) {
        int _ch = __is.read();
        if (_ch != -1)
          System.out.print((char) _ch);
        else
          break;
      }
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}

实体类

import java.sql.Timestamp;
public class FileEntity {
  private String type;
  private String size;
  private String path;
  private String titleOrig;
  private String titleAlter;
  private Timestamp uploadTime;
  public String getType() {
    return type;
  }
  public void setType(String type) {
    this.type = type;
  }
  public String getSize() {
    return size;
  }
  public void setSize(String size) {
    this.size = size;
  }
  public String getPath() {
    return path;
  }
  public void setPath(String path) {
    this.path = path;
  }
  public String getTitleOrig() {
    return titleOrig;
  }
  public void setTitleOrig(String titleOrig) {
    this.titleOrig = titleOrig;
  }
  public String getTitleAlter() {
    return titleAlter;
  }
  public void setTitleAlter(String titleAlter) {
    this.titleAlter = titleAlter;
  }
  public Timestamp getUploadTime() {
    return uploadTime;
  }
  public void setUploadTime(Timestamp uploadTime) {
    this.uploadTime = uploadTime;
  }
}

总结

以上所述是小编给大家介绍的Java上传视频实例代码，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对脚本之家网站的支持！