Java在线视频下载

package com.jxre.bigdata.service.imports;

import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLConnection;
/*
public class VideoDownload {
   public static boolean httpDownload(String httpUrl, String saveFile) {
// 1.下载网络文件
int byteRead;
URL url;
try {
url = new URL(httpUrl);
} catch (MalformedURLException e1) {
e1.printStackTrace();
return false;
}

try {
//2.获取链接
URLConnection conn = url.openConnection();
//3.输入流
InputStream inStream = conn.getInputStream();
//3.写入文件
FileOutputStream fs = new FileOutputStream(saveFile);

byte[] buffer = new byte[1024];
while ((byteRead = inStream.read(buffer)) != -1) {
fs.write(buffer, 0, byteRead);
}
inStream.close();
fs.close();
return true;
} catch (FileNotFoundException e) {
e.printStackTrace();
return false;
} catch (IOException e) {
e.printStackTrace();
return false;
}
}


   public static void main(String[] args) {
       System.out.println(httpDownload("http://yun.it7090.com/video/XHLaunchAd/video01.mp4","D:\\image\\22.mp4"));
   }
}
方法二

package com.amigo.online.provider.manager.util.video.download;*/

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;

import org.jboss.logging.Logger;

public class Tv {
   private static final Logger LOGGER = Logger.getLogger(Tv.class);
   /**
* 下载文件到本地
*
* @param urlString
* 被下载的文件地址
* @param filename
* 本地文件名
* @param timeout
* 超时时间毫秒
* @throws Exception
* 各种异常
*/

   @SuppressWarnings("finally")
   public static boolean download(String urlString, String filename,int timeout){
   boolean ret = false;
   File file = new File(filename);
   try {
   if(file.exists()){
   ret = true;
   }else{
   // 构造URL
   URL url = new URL(urlString);
   // 打开连接
   HttpURLConnection con = (HttpURLConnection )url.openConnection();
   con.setConnectTimeout(timeout);
   con.setReadTimeout(timeout);
   con.connect();
   int contentLength = con.getContentLength();
   // 输入流
   InputStream is = con.getInputStream();
   // 1K的数据缓冲
   byte[] bs = new byte[1024];
   // 读取到的数据长度
   int len;
   // 输出的文件流

   File file2=new File(file.getParent());
   file2.mkdirs();
   if(file.isDirectory()){

   }else{
   file.createNewFile();//创建文件
   }
   OutputStream os = new FileOutputStream(file);
   // 开始读取
   while ((len = is.read(bs)) != -1) {
   os.write(bs, 0, len);
   }
   // 完毕，关闭所有链接
   System.out.print("ok------------");
   os.close();
   is.close();
   if(contentLength != file.length()){
   file.delete();
   ret = false;
   }else{
   ret = true;
   }
   }
   } catch (IOException e) {
   file.delete();
   ret = false;
   LOGGER.error("[VideoUtil:download]:\n" + " VIDEO URL：" + urlString + " \n NEW FILENAME:" + filename + " DOWNLOAD FAILED!! ");
   }finally {
   return ret;
   }
   }




public static void main(String[] args) {
   System.out.println(download("http://aqiniu.tangdou.com/C79EBFF6107CE4389C33DC5901307461-20.mp4","D:\\test\\1.mp4",1000000000));
   }

}

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