Java获取视频时长、大小的示例

    项目中有这样一个需求，网页上上传了一个视频，需要获取此视频的时长、大小，把这两个数据返回给前台在页面显示。后台使用的是springboot框架，项目部署在linux上面。下面是核心代码：

    1、pom文件中需要导入的jar包依赖

    (分为两部分：核心包、ffmpeg包两部分，ffmpeg包又分为windows环境以及linux环境，同时又区分32位系统以及64位系统。针对于不同的运行环境要导入不同的包，这一点对于开发、测试环境为window而生产环境为linux的情况，尤其要注意需要导入所有的包，使其在两种环境下都能够使用)

  <dependency>
    <groupid>ws.schild</groupid>
    <artifactid>jave-all-deps</artifactid>
    <version>2.6.0</version>
  </dependency>
  <dependency>
    <groupid>ws.schild</groupid>
    <artifactid>jave-core</artifactid>
    <version>2.4.5</version>
  </dependency>

  <!-- window32位 ffmpeg -->
  <dependency>
    <groupid>ws.schild</groupid>
    <artifactid>jave-native-win32</artifactid>
    <version>2.4.5</version>
  </dependency>

  <!-- window64位 ffmpeg -->
  <dependency>
    <groupid>ws.schild</groupid>
    <artifactid>jave-native-win64</artifactid>
    <version>2.4.5</version>
  </dependency>

  <!-- linux32位 ffmpeg -->
  <dependency>
    <groupid>ws.schild</groupid>
    <artifactid>jave-native-linux32</artifactid>
    <version>2.4.6</version>
  </dependency>

  <!-- linux64位 ffmpeg -->
  <dependency>
    <groupid>ws.schild</groupid>
    <artifactid>jave-native-linux64</artifactid>
    <version>2.4.6</version>
  </dependency>

    2、controller层代码

package com.aaa.bbb.controller;

import io.swagger.annotations.api;
import lombok.extern.slf4j.slf4j;
import org.apache.commons.io.fileutils;
import org.springframework.util.resourceutils;
import org.springframework.web.bind.annotation.postmapping;
import org.springframework.web.bind.annotation.requestmapping;
import org.springframework.web.bind.annotation.requestparam;
import org.springframework.web.bind.annotation.restcontroller;
import ws.schild.jave.multimediainfo;
import ws.schild.jave.multimediaobject;

import java.io.file;
import java.io.fileinputstream;
import java.io.filenotfoundexception;
import java.io.ioexception;
import java.math.bigdecimal;
import java.math.roundingmode;
import java.nio.channels.filechannel;

@slf4j
@restcontroller
@requestmapping("/readvideo")
@api(tags = "获取视频时长、大小相关信息的接口")
public class readvideocontroller {

/**
 * 获取视频时长
 *
 * @param fileurl
 * @return
 */
@postmapping("/videolengthandsize")
public static string getlengthandsize(@requestparam string fileurl) throws filenotfoundexception {
  readvideocontroller r = new readvideocontroller();
  string path = resourceutils.geturl("classpath:").getpath() + "static";
  system.out.println("666666666666666666666666666666【" + path + "】666666666666666666666666666666】");
  fileurl = path + fileurl;
  string videolength = r.readvideotime(fileurl);//视频时长

  system.out.println("===========================视频时长：" + videolength + "===========================");
  return videolength;
}

/**
 * 视频时长
 *
 * @param fileurl
 * @return
 */
public static string readvideotime(string fileurl) {
  file source = new file(fileurl);
  string length = "";
  try {
    multimediaobject instance = new multimediaobject(source);
    multimediainfo result = instance.getinfo();
    long ls = result.getduration() / 1000;
    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;
    }
    length = hr + ":" + mi + ":" + se;
  } catch (exception e) {
    e.printstacktrace();
  }
  return length;
}

 /**
 * 视频大小
 *
 * @param source
 * @return
 */
@suppresswarnings({"resource"})
public static string readvideosize(file source) {
  filechannel fc = null;
  string size = "";
  try {
    fileinputstream fis = new fileinputstream(source);
    fc = fis.getchannel();
    bigdecimal filesize = new bigdecimal(fc.size());
    size = filesize.divide(new bigdecimal(1024 * 1024), 2, roundingmode.half_up) + "mb";
  } catch (filenotfoundexception e) {
    e.printstacktrace();
  } catch (ioexception e) {
    e.printstacktrace();
  } finally {
    if (null != fc) {
      try {
        fc.close();
      } catch (ioexception e) {
        e.printstacktrace();
      }
    }
  }
  return size;
}
}

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