Java断点续传下载视频

控制层类：

package com.grab.video.controller;

import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import java.net.HttpURLConnection;
import java.net.MalformedURLException;
import java.net.URL;
import java.net.URLDecoder;
import java.net.URLEncoder;
import java.nio.charset.Charset;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
import java.util.Scanner;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import javax.servlet.ServletContext;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.commons.io.FilenameUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpEntity;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpStatus;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.ServletRequestUtils;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.view.RedirectView;

import com.fasterxml.jackson.core.JsonGenerationException;
import com.fasterxml.jackson.databind.JsonMappingException;
import com.fasterxml.jackson.databind.ObjectMapper;

@Controller
public class GrabVideoController {

	private static final Logger LOG = LoggerFactory.getLogger(GrabVideoController.class);

	//private static String filePath="D:\\logs\\video";
	private static String filePath = "/home/grabVideo/";

	@Autowired
	ServletContext context;

	/**
	 * 输入userid可以使用
	 *
	 * @param request
	 * @param response
	 * @return
	 */
	@RequestMapping(value = "/grab/login", method = { RequestMethod.GET })
	public ModelAndView login(HttpServletRequest request, HttpServletResponse response) {
		String userId = ServletRequestUtils.getStringParameter(request, "userId", "");
		String ts = ServletRequestUtils.getStringParameter(request, "ts", "");
		String sign = ServletRequestUtils.getStringParameter(request, "sign", "");

		ModelAndView mav = new ModelAndView();
		// 身份验证
		if (StringUtils.isNotBlank(userId)) {
			String encryptedSign = EncryptionUtils.md5Hex(ts + userId + "grab");
			if (sign.equals(encryptedSign)) {
				HttpSession session = request.getSession();
				session.setMaxInactiveInterval(5*24*60*60);//秒为单位,设置session周期为5天
				session.setAttribute("userId", userId);// 把userId存放到session
				String url = "/grab/import";
				mav.setView(new RedirectView(url));
				return mav;
			}
		}

		mav.setViewName("video/error");
		return mav;
	}

	/**
	 * 导入文件
	 *
	 * @return
	 */
	@RequestMapping(value = "/grab/import", method = { RequestMethod.GET })
	public ModelAndView importFile(HttpServletRequest request, HttpServletResponse response) {
		// String userId = ServletRequestUtils.getStringParameter(request,
		// "userId", null);
		ModelAndView mav = new ModelAndView();
		HttpSession session = request.getSession();

		String userId = null;
		if (session.getAttribute("userId") != null) {
			userId = (String) session.getAttribute("userId");
			SqlFileList sqlFileList = new SqlFileList();
			List<FileListModel> list = new ArrayList<FileListModel>();
			try {
				list = sqlFileList.selectDate(userId);
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

			// 从POLYV的API获取目录

			mav.addObject("list", list);
			mav.addObject("userId", userId);
			mav.setViewName("video/import");
			return mav;
		}

		mav.setViewName("video/login");
		return mav;

	}

	/**
	 * 删除文件
	 *
	 * @param request
	 * @param response
	 * @return
	 */
	@RequestMapping(value = "/grab/delete/file", method = { RequestMethod.GET })
	public ResponseEntity<AjaxPostResponse> deleteFile(HttpServletRequest request,
			HttpServletResponse response) {
		String fileId = ServletRequestUtils.getStringParameter(request, "fileId", null);

		MediaType mediaType = new MediaType("application", "json", Charset.forName("UTF-8"));
		HttpHeaders headers = new HttpHeaders();
		headers.setContentType(mediaType);

		SqlFileList sqlFileList = new SqlFileList();
		try {
			sqlFileList.deleteDate(fileId);
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		AjaxPostResponse resp = new AjaxPostResponse("yes");
		return new ResponseEntity<AjaxPostResponse>(resp, headers, HttpStatus.OK);
	}

	/**
	 * 解析文件
	 *
	 * @return
	 * @throws UnsupportedEncodingException
	 */
	@RequestMapping(value = "/grab/analysis", method = { RequestMethod.GET })
	public ResponseEntity<AjaxPostResponse> analysisFile(HttpServletRequest request,
			HttpServletResponse response) throws UnsupportedEncodingException {
		Integer fileId = ServletRequestUtils.getIntParameter(request, "fileId", 0);
		String fileUrl = ServletRequestUtils.getStringParameter(request, "fileUrl", "");
		String classifyId = ServletRequestUtils.getStringParameter(request, "classifyId",
				"classifyId");
		String classifyName = ServletRequestUtils.getStringParameter(request, "classifyName", "");
		String userId = ServletRequestUtils.getStringParameter(request, "userId", null);

		MediaType mediaType = new MediaType("application", "json", Charset.forName("UTF-8"));
		HttpHeaders headers = new HttpHeaders();
		headers.setContentType(mediaType);

		String errorStr="";
		System.out.println("==========="+userId);
		List<String> urlList = new ArrayList<String>();
		List<String> titleList = new ArrayList<String>();
		try {
			System.out.println("file============"+fileUrl);

			CloseableHttpClient httpclient = HttpClients.createDefault();
			HttpGet httpGet = new HttpGet(fileUrl);
			try {
					CloseableHttpResponse response2 = httpclient.execute(httpGet);
					InputStream is = null;
			        Scanner sc = null;
			        Writer os = null;
			        if (response2.getStatusLine().getStatusCode() == org.apache.http.HttpStatus.SC_OK) {
			            try {
			                // 2、获取response的entity。
			                HttpEntity entity = response2.getEntity();
			                is = entity.getContent();
			                //sc = new Scanner(is);
			                BufferedReader reader = new BufferedReader(new InputStreamReader(
			    					is, "UTF-8"));
			                int n=0;
			            	String line = null;
			    			while ((line = reader.readLine()) != null) {
			    				n++;
			    				try {
									String str = line;
									//
									String urlstr = str.substring(0, str.indexOf(","));
									String title = str.substring(str.lastIndexOf(",") + 1, str.length());
									//
									urlList.add(urlstr);
									titleList.add(title);
								} catch (Exception e) {
									// TODO Auto-generated catch block
									System.out.println("解析失败"+n);
									errorStr=errorStr+","+n;
									e.printStackTrace();
								}
			    			}
			    			errorStr=errorStr+"行格式原因";
			            }catch(Exception e){
			            	System.out.println("解析失败");
			            } finally {
			                if (sc != null) {
			                    sc.close();
			                }
			                if (is != null) {
			                    is.close();
			                }
			                if (os != null) {
			                    os.close();
			                }
			                if (response2 != null) {
			                    response2.close();
			                }
			            }
			        }
			}catch(Exception e){
				System.out.println("解析失败");
			}

		} catch (Exception e) {
			// TODO Auto-generated catch block
			LOG.info("文件解析失败：" + e);
			e.printStackTrace();
			AjaxPostResponse resp = new AjaxPostResponse(errorStr+":解析失败");
			return new ResponseEntity<AjaxPostResponse>(resp, headers, HttpStatus.OK);
		}

		// 更新状态
		SqlFileList sqlFileList = new SqlFileList();
		FileListModel file = new FileListModel();
		file.setFileId(fileId);
		file.setStatus("Y");
		try {
			sqlFileList.updateDate(file);
		} catch (SQLException e1) {
			// TODO Auto-generated catch block
			LOG.info("文件状态修改成功：" + e1);
			e1.printStackTrace();
		}

		// LOG.info("00000"+classifyName);
		classifyName = classifyName.replace("-", "");
		// LOG.info(classifyName);

		// 添加数据
		Date date = new Date();
		Timestamp timeStamp = new Timestamp(date.getTime());
		GetRandomString randomStr = new GetRandomString();
		for (int i = 0; i < urlList.size(); i++) {

			VideoListModel video = new VideoListModel();
			video.setUserId(userId);
			video.setUrl(urlList.get(i));// 视频源地址
			video.setTitle(titleList.get(i));// 视频标题

			String urlstr = urlList.get(i);
			// String path=urlstr.substring(0, urlstr.indexOf("?"));
			// String format=path.substring(path.lastIndexOf("."),
			// path.length());//视频格式
			// String baseName = FilenameUtils.getBaseName(urlstr);
			String extendname = FilenameUtils.getExtension(urlstr);
			if(extendname.contains("?")){
				extendname=extendname.substring(0,extendname.indexOf("?"));
			}

			if (StringUtils.isBlank(extendname)) {
				extendname = "mp4";
			}
			String trueName = randomStr.generateRandomString(15);
			String filename = trueName + "." + extendname;
			video.setTrueName(filename);// 用于下载使用的视频名称

			video.setClassifyId(classifyId);
			//video.setClassifyName(classifyName.trim());
			video.setClassifyName(URLDecoder.decode(classifyName.trim(),"GBK"));
			video.setStatus(VideoStatus.NO.getValue());// 等待、
			video.setVid("");
			video.setCreateTime(timeStamp);
			video.setLastDate(timeStamp);

			SqlVideoList sqlvideo = new SqlVideoList();
			try {
				sqlvideo.insertDate(video);// 添加数据库
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				LOG.info("添加数据库:" + e);
				e.printStackTrace();
				AjaxPostResponse resp = new AjaxPostResponse("no");
				return new ResponseEntity<AjaxPostResponse>(resp, headers, HttpStatus.OK);
			}
		}

		AjaxPostResponse resp = new AjaxPostResponse("yes");
		return new ResponseEntity<AjaxPostResponse>(resp, headers, HttpStatus.OK);
	}

	/**
	 * 获取下载进度
	 *
	 * @return
	 */
	@RequestMapping(value = "/grab/download/progress", method = { RequestMethod.POST,
			RequestMethod.GET })
	public ResponseEntity<AjaxPostResponse> getProgress(HttpServletRequest request,
			HttpServletResponse response) {
		Integer id = ServletRequestUtils.getIntParameter(request, "videoId", 0);
		String userId = ServletRequestUtils.getStringParameter(request, "userId", "test");
		String urlstr = ServletRequestUtils.getStringParameter(request, "url", "");
		String trueName = ServletRequestUtils.getStringParameter(request, "trueName", "");

		MediaType mediaType = new MediaType("application", "json", Charset.forName("UTF-8"));
		HttpHeaders headers = new HttpHeaders();
		headers.setContentType(mediaType);

		// LOG.info("--id---"+id+"---u---"+userId);

		int content = 1;
		int length = 1;
		int progress = 1;
		HttpSession session = request.getSession();

		// LOG.info("-------ccccc4------------"+session.getAttribute("fileSize"+id));
		if (session.getAttribute("fileSize" + String.valueOf(id)) == null) {
			// 文件大小还没存进session中
			List<TaskQueue> list = new ArrayList<TaskQueue>();
			SqlTaskQueue stq = new SqlTaskQueue();
			try {
				list = stq.selectDateOne(String.valueOf(id));
			} catch (SQLException e2) {
				// TODO Auto-generated catch block
				LOG.info("查询文件大小" + e2);
				e2.printStackTrace();
			}

			if (list.size() > 0) {
				TaskQueue tQueue = list.get(0);
				content = tQueue.getFileSize();
				session.setAttribute("fileSize" + String.valueOf(id), content);// 存进session
			} else {
				URL url = null;
				try {
					url = new URL(urlstr);
					HttpURLConnection connection = (HttpURLConnection) url.openConnection();// 进行连接握手
					connection.setRequestMethod("GET");// 请求方式
					content = (int) connection.getContentLength();
					session.setAttribute("fileSize" + String.valueOf(id), content);// 存进session
					// LOG.info("-------content------"+content);
				} catch (Exception e1) {
					// TODO Auto-generated catch block
					LOG.info("链接失败" + e1);
					e1.printStackTrace();
				}
			}
		} else {
			// 文件大少在session中
			String contentString = String.valueOf(session.getAttribute("fileSize"
					+ String.valueOf(id)));
			// LOG.info("-------ccccc------------"+contentString);
			content = Integer.parseInt(contentString.trim());
		}

		// 文件存储位置、文件命名处理
		try {
			// String path=urlstr.substring(0, urlstr.indexOf("?"));
			// String name=path.substring(path.lastIndexOf("/")+1,
			// path.length());
			// String filename=name.trim();
			String filename = trueName;

			File file = new File(filePath, filename);

			if (!file.exists()) {
				progress = (Integer) session.getAttribute(userId + id);// 将当前下载进度存放到session中。
			} else {
				length = (int) file.length();
				progress = length * 100 / content;
				// 将当前下载进度存放到session中。
				session.setAttribute(userId + id, progress);
				LOG.info(id + "-------progress------" + progress);
			}

		} catch (Exception e) {
			LOG.info("不能解析的路径：" + e);
			AjaxPostResponse resp = new AjaxPostResponse(progress);
			return new ResponseEntity<AjaxPostResponse>(resp, headers, HttpStatus.OK);
		}

		AjaxPostResponse resp = new AjaxPostResponse(progress);
		return new ResponseEntity<AjaxPostResponse>(resp, headers, HttpStatus.OK);
	}

	/**
	 * 批量抓取视频(下载视频模块--根据视频源地址去抓取视频)管理
	 *
	 * @return
	 * @throws MalformedURLException
	 */
	@RequestMapping(value = "/grab/download/manage", method = { RequestMethod.POST })
	public ModelAndView grabDownloadVideo(HttpServletRequest request, HttpServletResponse response) {
		int[] id = ServletRequestUtils.getIntParameters(request, "videoId");
		String userId = ServletRequestUtils.getStringParameter(request, "userId", "test");
		String[] urlstr = ServletRequestUtils.getStringParameters(request, "url");
		String[] trueName = ServletRequestUtils.getStringParameters(request, "trueName");

		int len = id.length;

		List<TaskQueue> taskQueues = new ArrayList<TaskQueue>();
		for (int i = 0; i < len; i++) {
			TaskQueue tq = new TaskQueue();
			tq.setTaskId(String.valueOf(id[i]));
			tq.setVideoId(id[i]);
			tq.setUserId(userId);
			tq.setVideoUrl(urlstr[i]);
			tq.setTrueName(trueName[i]);
			taskQueues.add(tq);
		}

		// 把任务队列添加进数据库
		if (taskQueues.size() > 0) {
			// 存在有任务
			for (int i = 0; i < taskQueues.size(); i++) {
				TaskQueue task = taskQueues.get(i);
				List<TaskQueue> taskList = new ArrayList<TaskQueue>();// 查询任务是否已存在
				try {
					SqlTaskQueue stq = new SqlTaskQueue();
					taskList = stq.selectDateOne(task.getTaskId());
				} catch (SQLException e1) {
					// TODO Auto-generated catch block
					e1.printStackTrace();
				}

				if (taskList.size() > 0) {
					// 该任务已存在
				} else {
					task.setFileSize(0);
					task.setProgress(0);
					task.setStatus("N");
					Date date = new Date();
					Timestamp timeStamp = new Timestamp(date.getTime());
					task.setCreateTime(timeStamp);
					try {
						SqlTaskQueue stq = new SqlTaskQueue();
						stq.insertDate(task);
					} catch (SQLException e) {
						// TODO Auto-generated catch block
						LOG.info("下载任务添加失败！" + e);
						e.printStackTrace();
					}
				}
			}
		}

		// 获取所有的任务队列
		List<TaskQueue> workQueues = new ArrayList<TaskQueue>();
		try {
			SqlTaskQueue stq = new SqlTaskQueue();
			workQueues = stq.selectDate(userId);
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			LOG.info("获取下载任务失败" + e);
			e.printStackTrace();
		}
		// ExecutorService pool = Executors.newFixedThreadPool(3);
		if (workQueues.size() > 0) {
			for (int i = 0; i < workQueues.size(); i++) {
				String taskId = workQueues.get(i).getTaskId();
				String urltxt = workQueues.get(i).getVideoUrl();
				String filename = workQueues.get(i).getTrueName();

				File saveFile = new File(filePath, filename);// 文件保存的位置
				File fileDir = new File(filePath);
				if (!fileDir.exists()) {
					fileDir.mkdirs();// 目录不存在创建目录
				}
				URL url = null;
				try {
					url = new URL(workQueues.get(i).getVideoUrl());
				} catch (MalformedURLException e) {
					// TODO Auto-generated catch block
					LOG.info("握手失败" + e);
					e.printStackTrace();
				}

				if (url != null) {
					// 将下载任务线程，放入线程池中执行
					ExecutorService executor = (ExecutorService) context
							.getAttribute("DOWNLOAD_EXECUTOR");
					executor.submit(new DownloadVideo(url, saveFile, taskId));
					// pool.execute(new
					// DownloadVideo(url,saveFile,taskId));////////////////////////////////////
					VideoListModel vlm = new VideoListModel();
					vlm.setId(workQueues.get(i).getVideoId());
					vlm.setUserId(userId);
					vlm.setStatus(VideoStatus.WAIT.getValue());// 将状态改为等待
					try {
						SqlVideoList svl = new SqlVideoList();
						svl.updateDate(vlm);
					} catch (SQLException e) {
						// TODO Auto-generated catch block
						LOG.info("更改下载状态失败" + e);
						e.printStackTrace();
					}

				}
			}
		}
		// 关闭线程池
		// pool.shutdown();

		// 重新查询视频列表
		List<VideoListModel> list = new ArrayList<VideoListModel>();
		try {
			SqlVideoList svl = new SqlVideoList();
			list = svl.selectDate(userId);
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		ModelAndView mav = new ModelAndView();
		mav.addObject("videolist", list);
		mav.addObject("userId", userId);
		mav.setViewName("video/download");
		return mav;

	}

	/**
	 * 获取视频的下载进度()
	 * @param request
	 */
	@RequestMapping(value="/grab/download/status",method = {RequestMethod.GET,RequestMethod.POST})
	public @ResponseBody
	ResponseEntity<String> downloadStatus(HttpServletRequest request, HttpServletResponse response)
			throws JsonGenerationException, JsonMappingException, IOException {

		HttpSession session = request.getSession();
		if (session.getAttribute("userId") != null) {
			String userId = (String) session.getAttribute("userId");
			List<VideoListModel> list = new ArrayList<VideoListModel>();
			try {
				SqlVideoList sqlVideoList = new SqlVideoList();
				list = sqlVideoList.selectAllDate(userId);
			    //list = sqlVideoList.selectExecuteDate(userId);
				for (int i = 0; i < list.size(); i++) {
					VideoListModel model = list.get(i);

					String filename = model.getTrueName();
					File file = new File(filePath, filename);

					if (file.exists()) {

						int downloaded = (int) file.length();
						if (model.getFileSize() != 0) {
							//System.out.println(model.getId()+"===n==="+model.getTrueName()+"===d==="+downloaded+"===s==="+model.getFileSize()+"===="+(long)downloaded * 100 /(long) model.getFileSize());
							model.setPercent((int) ((long)downloaded * 100 /(long) model.getFileSize()));
						} 

					}

				}
				ObjectMapper objectMapper = new ObjectMapper();
				String result = objectMapper.writeValueAsString(list);

				MediaType mediaType = new MediaType("application", "json", Charset.forName("UTF-8"));
				HttpHeaders headers = new HttpHeaders();
				headers.setContentType(mediaType);
				return new ResponseEntity<String>(result, headers, HttpStatus.OK);

			} catch (SQLException e) {
				// TODO Auto-generated catch block
				System.out.println("获取下载进度出现异常！");
				e.printStackTrace();
			}

		}
		return null;

	}

	@RequestMapping(value = "/grab/download/manage", method = { RequestMethod.GET })
	public ModelAndView grabVideo(HttpServletRequest request, HttpServletResponse response) {
		// String userId = ServletRequestUtils.getStringParameter(request,
		// "userId", "");
		String userId = null;

		ModelAndView mav = new ModelAndView();

		HttpSession session = request.getSession();
		if (session.getAttribute("userId") != null) {
			userId = (String) session.getAttribute("userId");
			SqlVideoList sqlVideoList = new SqlVideoList();
			List<VideoListModel> list = new ArrayList<VideoListModel>();
			try {
				list = sqlVideoList.selectDate(userId);
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			mav.addObject("videolist", list);
			mav.addObject("userId", userId);
			mav.setViewName("video/download");
			return mav;
		}

		mav.setViewName("video/login");
		return mav;
	}

	/**
	 * 暂停下载
	 */
	@RequestMapping(value = "/grab/video/stop", method = { RequestMethod.GET })
	public ResponseEntity<AjaxPostResponse> downloadStop(HttpServletRequest request,
			HttpServletResponse response) {
		int id = ServletRequestUtils.getIntParameter(request, "videoId",0);
		String userId = ServletRequestUtils.getStringParameter(request, "userId", "test");
		//String urlstr = ServletRequestUtils.getStringParameter(request, "url","");
		//String trueName = ServletRequestUtils.getStringParameter(request, "trueName","");

		MediaType mediaType = new MediaType("application", "json", Charset.forName("UTF-8"));
		HttpHeaders headers = new HttpHeaders();
		headers.setContentType(mediaType);

		try {
			SqlTaskQueue stq = new SqlTaskQueue();
			stq.deleteDate(String.valueOf(id));
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		// 获取所有的任务队列
		List<TaskQueue> workQueues = new ArrayList<TaskQueue>();
		try {
			SqlTaskQueue stq = new SqlTaskQueue();
			workQueues = stq.selectDate(userId);
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			LOG.info("获取下载任务失败" + e);
			e.printStackTrace();
		}
		// ExecutorService pool = Executors.newFixedThreadPool(3);
		if (workQueues.size() > 0) {
			for (int i = 0; i < workQueues.size(); i++) {
				String taskId = workQueues.get(i).getTaskId();
				String urltxt = workQueues.get(i).getVideoUrl();
				String filename = workQueues.get(i).getTrueName();

				File saveFile = new File(filePath, filename);// 文件保存的位置
				File fileDir = new File(filePath);
				if (!fileDir.exists()) {
					fileDir.mkdirs();// 目录不存在创建目录
				}
				URL url = null;
				try {
					url = new URL(workQueues.get(i).getVideoUrl());
				} catch (MalformedURLException e) {
					// TODO Auto-generated catch block
					LOG.info("握手失败" + e);
					e.printStackTrace();
				}

				if (url != null) {
					// 将下载任务线程，放入线程池中执行
					ExecutorService executor = (ExecutorService) context
							.getAttribute("DOWNLOAD_EXECUTOR");
					executor.submit(new DownloadVideo(url, saveFile, taskId));
					// pool.execute(new
					// DownloadVideo(url,saveFile,taskId));////////////////////////////////////
					VideoListModel vlm = new VideoListModel();
					vlm.setId(workQueues.get(i).getVideoId());
					vlm.setUserId(userId);
					vlm.setStatus(VideoStatus.WAIT.getValue());// 将状态改为等待
					try {
						SqlVideoList svl = new SqlVideoList();
						svl.updateDate(vlm);
					} catch (SQLException e) {
						// TODO Auto-generated catch block
						LOG.info("更改下载状态失败" + e);
						e.printStackTrace();
					}

				}
			}
		}

		System.out.println("停止下载！");
		AjaxPostResponse resp = new AjaxPostResponse("yes");
		return new ResponseEntity<AjaxPostResponse>(resp, headers, HttpStatus.OK);
	}

	/**
	 * 导出下载成功的视频
	 *
	 * @return
	 */
	@RequestMapping(value = "/grab/export", method = { RequestMethod.GET })
	public ModelAndView exportVideo(HttpServletRequest request, HttpServletResponse response) {
		// String userId = ServletRequestUtils.getStringParameter(request,
		// "userId", "");
		String userId = null;
		ModelAndView mav = new ModelAndView();

		HttpSession session = request.getSession();
		if (session.getAttribute("userId") != null) {
			userId = (String) session.getAttribute("userId");
			SqlVideoList sqlVideoList = new SqlVideoList();
			List<VideoListModel> list = new ArrayList<VideoListModel>();
			try {
				list = sqlVideoList.selectSuccessDate(userId);
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			mav.addObject("videolist", list);
			mav.addObject("userId", userId);
			mav.setViewName("video/export");
			return mav;
		}

		mav.setViewName("video/login");
		return mav;
	}

	/**
	 * export导出文件
	 */
	@RequestMapping(value = "/grab/export/csv", method = { RequestMethod.GET })
	public void exportCsv(HttpServletRequest request, HttpServletResponse response) {
		String userId = ServletRequestUtils.getStringParameter(request, "userId", "");

		if (StringUtils.isNotBlank(userId)) {

			SqlVideoList sqlVideoList = new SqlVideoList();
			List<VideoListModel> list = new ArrayList<VideoListModel>();
			try {
				list = sqlVideoList.selectSuccessDate(userId);
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

			// 导出txt文件
			//response.setContentType("text/plain");
			response.setContentType("text/csv;  charset=UTF-8");
			String fileName = "videolist";
			try {
				fileName = URLEncoder.encode("videolist", "UTF-8");
			} catch (UnsupportedEncodingException e1) {
				// TODO Auto-generated catch block
				e1.printStackTrace();
			}
			response.setHeader("Content-Disposition", "attachment; filename=" + fileName + ".csv");
			BufferedOutputStream buff = null;
			StringBuffer write = new StringBuffer();
			String enter = "\r\n";
			ServletOutputStream outSTr = null;
			try {
				outSTr = response.getOutputStream(); // 建立
				buff = new BufferedOutputStream(outSTr);
				// 把内容写入文件
				if (list.size() > 0) {
					for (int i = 0; i < list.size(); i++) {
						write.append(list.get(i).getUrl());
						write.append(",");
						write.append(list.get(i).getTitle());
						write.append(",");
						write.append(list.get(i).getVid());
						write.append(",");
						write.append(list.get(i).getLastDate());
						write.append(enter);
					}
				}
				buff.write(write.toString().getBytes("GBK"));
				buff.flush();
				buff.close();
			} catch (Exception e) {
				e.printStackTrace();
			} finally {
				try {
					buff.close();
					outSTr.close();
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		}

	}

	/**
	 * 清空导出视频列表
	 * /grab/export/clean
	 */
	@RequestMapping(value = "/grab/export/clean", method = { RequestMethod.GET })
	public ResponseEntity<AjaxPostResponse> cleanVideo(HttpServletRequest request,
			HttpServletResponse response) {

		MediaType mediaType = new MediaType("application", "json", Charset.forName("UTF-8"));
		HttpHeaders headers = new HttpHeaders();
		headers.setContentType(mediaType);

		HttpSession session = request.getSession();
		if (session.getAttribute("userId") != null) {
			String userId=(String) session.getAttribute("userId");
			SqlVideoList sqlVideoList=new SqlVideoList();
			try {
				sqlVideoList.cleanDate(userId);
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

			//删除成功
			System.out.println("删除成功！");
			AjaxPostResponse resp = new AjaxPostResponse("yes");
			return new ResponseEntity<AjaxPostResponse>(resp, headers, HttpStatus.OK);
		}else{
			//删除失败
			System.out.println("删除失败！");
			AjaxPostResponse resp = new AjaxPostResponse("no");
			return new ResponseEntity<AjaxPostResponse>(resp, headers, HttpStatus.OK);
		}

	}

	/**
	 * 删除视频
	 * /grab/export/clean
	 */
	@RequestMapping(value = "/grab/delete/videoId", method = { RequestMethod.GET })
	public ResponseEntity<AjaxPostResponse> deleteVideo(HttpServletRequest request,
			HttpServletResponse response) {
		String videoId = ServletRequestUtils.getStringParameter(request, "videoId", null);

		MediaType mediaType = new MediaType("application", "json", Charset.forName("UTF-8"));
		HttpHeaders headers = new HttpHeaders();
		headers.setContentType(mediaType);

		if (StringUtils.isNotBlank(videoId)) {
			SqlVideoList sqlVideoList=new SqlVideoList();
			try {
				SqlTaskQueue stqSe=new SqlTaskQueue();
				List<TaskQueue> list=stqSe.selectDateOne(videoId);
				if(list.size()>0){
					SqlTaskQueue stq=new SqlTaskQueue();
					stq.deleteDate(videoId);//删除任务
				}
				sqlVideoList.deleteDate(videoId);//删除视频
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				System.out.println("删除失败"+e);
				e.printStackTrace();
			}

			//删除成功
			AjaxPostResponse resp = new AjaxPostResponse("yes");
			return new ResponseEntity<AjaxPostResponse>(resp, headers, HttpStatus.OK);
		}else{
			//删除失败
			AjaxPostResponse resp = new AjaxPostResponse("no");
			return new ResponseEntity<AjaxPostResponse>(resp, headers, HttpStatus.OK);
		}

	}

	/***
	 * 获取文件内容
	 * @param url
	 * @return
	 */
	public String httpGetFile(String url) {
		String contentStr="";
		CloseableHttpClient httpclient = HttpClients.createDefault();
		HttpGet httpGet = new HttpGet(url);
		try {
			CloseableHttpResponse response = httpclient.execute(httpGet);
			InputStream is = null;
	        Scanner sc = null;
	        Writer os = null;
	        if (response.getStatusLine().getStatusCode() == org.apache.http.HttpStatus.SC_OK) {
	            try {
	                // 2、获取response的entity。
	                HttpEntity entity = response.getEntity();
	                is = entity.getContent();
	                sc = new Scanner(is);
	                while (sc.hasNext()) {
	                	contentStr=contentStr+sc.nextLine();
	                }
	            } catch (ClientProtocolException e) {
	                e.printStackTrace();
	            } finally {
	                if (sc != null) {
	                    sc.close();
	                }
	                if (is != null) {
	                    is.close();
	                }
	                if (os != null) {
	                    os.close();
	                }
	                if (response != null) {
	                    response.close();
	                }
	            }
	        }  

		} catch (ClientProtocolException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		return contentStr;
	}

}

下载视频主线程类：

package com.grab.video.controller;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.io.Writer;
import java.net.HttpURLConnection;
import java.net.ProtocolException;
import java.net.URL;
import java.sql.SQLException;
import java.sql.Timestamp;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import org.apache.commons.lang3.StringUtils;
import org.apache.http.HttpEntity;
import org.apache.http.HttpStatus;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

public class DownloadVideo implements Runnable {

	private static final Logger LOG = LoggerFactory.getLogger(DownloadVideo.class);

	private static String TAG = "Downloader";
	private HttpURLConnection connection;
	private URL url;
	private File saveFile;
	private long fileLength;// 文件总大少
	private int progress;// 当前进度
	private long downloaded = 0;
	private boolean stop=false;
	private String taskId;
	private static String fileUrl = "http://grab.polyv.net/video/";

	private boolean downloadStatus = false;

	public DownloadVideo(URL url, File saveFile, String taskId) {
		this.url = url;
		this.saveFile = saveFile;
		this.taskId = taskId;
	}

	public DownloadVideo(URL url, File saveFile, String taskId,boolean stop) {
		this.url = url;
		this.saveFile = saveFile;
		this.taskId = taskId;
		this.stop = stop;
	}

	public DownloadVideo(String vid, File saveFile) {
		// 通过vid,获取视频TODO
	}

	public URL getUrl() {
		return url;
	}

	public void setUrl(URL url) {
		this.url = url;
	}

	public void setStop(boolean stop) {
		this.stop = stop;
	}

	public long getFileLength() {
		return fileLength;
	}

	public int getProgress() {
		return progress;
	}

	public void setProgress(int progress) {
		this.progress = progress;
	}

	public long getDownloaded() {
		return downloaded;
	}

	public int getPercent() {
		if (fileLength == 0) {
			return 0;
		}
		return (int) (downloaded * 100 / fileLength);
	}

	public void stop() {
		stop = true;
	}

	public void start() {
		stop = false;
	}

	// 开始执行,实现run方法
	public void run() {

		VideoListModel vlm = new VideoListModel();
		vlm.setId(Integer.valueOf(taskId));
		vlm.setStatus(VideoStatus.EXECUTE.getValue());// 将状态改为正在执行
		try {
			SqlVideoList sqlVideoList = new SqlVideoList();
			System.out.println("更新下载中状态。。。。");
			sqlVideoList.updateDate(vlm);
		} catch (SQLException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		try {
			BufferedInputStream in = null;
			FileOutputStream fos = null;
			BufferedOutputStream bout = null;
			print("start download:" + url);
			connection = (HttpURLConnection) url.openConnection();// 进行连接握手
			connection.setRequestProperty("User-Agent", "Polyv");

			Map<String, List<String>> map = connection.getRequestProperties();
			print(map.toString());// 输出参数
			connection.setRequestMethod("GET");// 请求方式
			if (saveFile.exists()) {
				downloaded = saveFile.length();
				connection.setRequestProperty("Range", "bytes=" + downloaded + "-");
			} else {
				downloaded = 0;// 重新开始下载
			}
			// connection.getResponseCode() == 200 206?
			int code = connection.getResponseCode();// 获取状态码
			print("code=" + code + ", downloaded =" + downloaded);
			printResponseHeader(connection);
			// http200状态,重新开始下载，206状态续点下载
			if (connection.getResponseCode() == 206 || connection.getResponseCode() == 200) {
				String range = "";
				HashMap<String, String> header = (HashMap<String, String>) getHttpResponseHeader(connection);

				for (Map.Entry<String, String> entry : header.entrySet()) {
					String key = entry.getKey();
					String value = entry.getValue();
					System.out.println(key+"============="+value);
					if (key.equals("Content-Range")) {
						range = entry.getValue();
					}
				}
				System.out.println("-----range-----"+range);
				long content = (long) connection.getContentLength();
				fileLength = range.equals("") ? content : Long.valueOf(range.split("/")[1]);
				System.out.println("文件===c==="+content+"===f==="+fileLength+"======"+(long)(content+downloaded));
				try {
					SqlVideoList sqlVideoList = new SqlVideoList();
					sqlVideoList.updateFileSize(Integer.valueOf(taskId),content+downloaded);//获取文件的大少(合计才是文件的大少,content是还有多少下载的，downloaded已下载的大少)
				} catch (SQLException e2) {
					// TODO Auto-generated catch block
					System.out.println("获取文件大少失败");
					e2.printStackTrace();
				}

				in = new BufferedInputStream(connection.getInputStream());
				fos = (downloaded == 0) ? new FileOutputStream(saveFile) : new FileOutputStream(
						saveFile, true);
				bout = new BufferedOutputStream(fos, 1024);
				byte[] data = new byte[1024];
				int x = 0;
				boolean p = false;
				while (!stop && (x = in.read(data, 0, 1024)) >= 0) {
					bout.write(data, 0, x);
					downloaded += x;
				}
				bout.close();
				System.out.println("下载完毕{}");
				downloadStatus = false;// 代表下载成功，不用去更新下载失败的状态

				String vid = null;
				// 获取vid,(根据taskId即videoId获取视频的title,cataId)
				List<VideoListModel> videoList = new ArrayList<VideoListModel>();
				try {
					SqlVideoList sqlVideoList = new SqlVideoList();
					videoList = sqlVideoList.selectDateOne(Integer.valueOf(taskId));
				} catch (SQLException e1) {
					// TODO Auto-generated catch block
					e1.printStackTrace();
				}

				if (videoList.size() > 0) {
					VideoListModel video = videoList.get(0);
					String title = video.getTitle().replace(" ", "");
					String cataid = video.getClassifyId();
					String userid = video.getUserId();
					String trueName = video.getTrueName();
					long ts = System.currentTimeMillis();
					String sign = EncryptionUtils.md5Hex(ts + userid + "grab");
					String url = fileUrl + trueName;
					 String pathStr="http://v.polyv.net/uc/services/rest?method=uploadForDownloader&fileUrl="+url+"&userid="+userid+"&title="+title+"&cataid="+cataid+"&ts="+ts+"&sign="+sign;
					 System.out.println("----url-----"+pathStr);
					 vid=httpGetVid(pathStr);//获取vid
					 if(vid==null){
						 try {
							Thread.sleep(1000);
						} catch (InterruptedException e) {
							// TODO Auto-generated catch block
							e.printStackTrace();
						}
						 vid=httpGetVid(pathStr);//获取vid
					 }

					 //第二次
					 if(vid==null){
						 try {
							Thread.sleep(1000);
						} catch (InterruptedException e) {
							// TODO Auto-generated catch block
							e.printStackTrace();
						}
						 vid=httpGetVid(pathStr);//获取vid
					 }

					 System.out.println("------下载完成获取vid---------" + vid);
				}

				// 下载完成，更改视频状态为SUCCESS
				VideoListModel video = new VideoListModel();
				video.setId(Integer.valueOf(taskId));
				video.setStatus(VideoStatus.SUCCESS.getValue());
				video.setVid(vid);
				Date date = new Date();
				Timestamp timeStamp = new Timestamp(date.getTime());
				video.setLastDate(timeStamp);
				try {
					SqlVideoList sqlVideoList = new SqlVideoList();
					sqlVideoList.updateDateVid(video);
				} catch (SQLException e) {
					// TODO Auto-generated catch block
					System.out.println("下载完成,更改视频状态失败" + e);
					e.printStackTrace();
				}

				// 下载完成，从任务队列移除该任务
				try {
					SqlTaskQueue stq = new SqlTaskQueue();
					stq.deleteDate(taskId);
				} catch (SQLException e) {
					// TODO Auto-generated catch block
					System.out.println("任务移除失败" + e);
					e.printStackTrace();
				}

			}else if (connection.getResponseCode() == 416) {
				// 416- 请求长度超出范围
				System.out.println("已经下载完了======"+connection.getResponseCode());
				downloadStatus = false;// 代表下载失败，要去更新下载失败的状态
			}else {
				downloadStatus = true;// 代表下载失败，要去更新下载失败的状态
			}

		} catch (NumberFormatException e) {
			// TODO Auto-generated catch block
			downloadStatus = true;// 代表下载失败，要去更新下载失败的状态
			e.printStackTrace();
		} catch (ProtocolException e) {
			// TODO Auto-generated catch block
			downloadStatus = true;// 代表下载失败，要去更新下载失败的状态
			e.printStackTrace();
		} catch (FileNotFoundException e) {
			// TODO Auto-generated catch block
			downloadStatus = true;// 代表下载失败，要去更新下载失败的状态
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			downloadStatus = true;// 代表下载失败，要去更新下载失败的状态
			e.printStackTrace();
		}

		if (downloadStatus) {
			// 下载失败，更改视频状态
			VideoListModel video = new VideoListModel();
			video.setId(Integer.valueOf(taskId));
			video.setStatus(VideoStatus.FAIL.getValue());
			try {
				SqlVideoList sqlVideoList = new SqlVideoList();
				sqlVideoList.updateDate(video);
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				System.out.println("下载失败,更改视频状态失败" + e);
				e.printStackTrace();
			}
		}else{
			// 下载完成，从任务队列移除该任务
			try {
				SqlTaskQueue stq = new SqlTaskQueue();
				stq.deleteDate(taskId);
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				System.out.println("任务移除失败" + e);
				e.printStackTrace();
			}

			VideoListModel video = new VideoListModel();
			video.setId(Integer.valueOf(taskId));
			video.setStatus(VideoStatus.SUCCESS.getValue());
			Date date = new Date();
			Timestamp timeStamp = new Timestamp(date.getTime());
			video.setLastDate(timeStamp);
			try {
				SqlVideoList sqlVideoList = new SqlVideoList();
				sqlVideoList.updateSuccessDate(video);
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				System.out.println("下载好了,更改视频状态失败" + e);
				e.printStackTrace();
			}
		}

	}

	/**
	 * 获取相应头部
	 *
	 * @param http
	 * @return
	 */
	public static Map<String, String> getHttpResponseHeader(HttpURLConnection http) {
		Map<String, String> header = new LinkedHashMap<String, String>();
		for (int i = 0;; i++) {
			String mine = http.getHeaderField(i);
			String key = http.getHeaderFieldKey(i);
			System.out.println(key+"=======test======="+mine);
			if (key == null || mine == null) {
				break;
			} else {
				header.put(http.getHeaderFieldKey(i), mine);
			}
		}
		return header;
	}

	/**
	 * 输出信息
	 *
	 * @param msg
	 */
	private static void print(String msg) {
		// Log.i(TAG, msg);
		System.out.println(TAG + "TAG{}," + msg);
	}

	/**
	 * 输出相应头信息
	 *
	 * @param http
	 */
	public static void printResponseHeader(HttpURLConnection http) {
		Map<String, String> header = getHttpResponseHeader(http);
		for (Map.Entry<String, String> entry : header.entrySet()) {
			String key = entry.getKey() != null ? entry.getKey() + ":" : "";
			print(key + entry.getValue());
		}
	}

	/**
	 * 发送请求，获取API数据
	 *
	 * @param userId
	 * @return
	 *         http://beta.polyv.net/uc/services/rest?url=http://grap.polyv.net/xxx
	 *         .mp4&title=filename&cataid=xxx&ts=&userid=&sign=
	 */
	public String httpGetVid(String url) {
		String contentStr = "";
		String vid = null;
		String urlStr = url;
		CloseableHttpClient httpclient = HttpClients.createDefault();
		HttpGet httpGet = new HttpGet(urlStr);
		try {
			CloseableHttpResponse response = httpclient.execute(httpGet);
			InputStream is = null;
			Scanner sc = null;
			Writer os = null;
			if (response.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
				try {
					// 2、获取response的entity。
					HttpEntity entity = response.getEntity();
					is = entity.getContent();
					sc = new Scanner(is);
					while (sc.hasNext()) {
						contentStr = contentStr + sc.nextLine();
					}
				} catch (ClientProtocolException e) {
					e.printStackTrace();
				} finally {
					if (sc != null) {
						sc.close();
					}
					if (is != null) {
						is.close();
					}
					if (os != null) {
						os.close();
					}
					if (response != null) {
						response.close();
					}
				}
			}

		} catch (ClientProtocolException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		if (StringUtils.isNotBlank(contentStr)) {
			System.out.println("====="+contentStr);
			Pattern pattern = Pattern.compile("\"vid\":\"([0-9a-z_]{34})\"");
			Matcher matcher = pattern.matcher(contentStr);
			if(matcher.find()){
				vid = matcher.group(1);
				System.out.println(vid);
			}

		}

		if (vid != null) {
			return vid;
		} else {
			return "";
		}
	}

}

线程池类：

package com.grab.video.listener;

import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;

/**
 * Hands out threads from the wrapped threadfactory with setDeamon(true), so the
 * threads won't keep the JVM alive when it should otherwise exit.
 */
public class DaemonThreadFactory implements ThreadFactory {

    private final ThreadFactory factory;

    /**
     * Construct a ThreadFactory with setDeamon(true) using
     * Executors.defaultThreadFactory()
     */
    public DaemonThreadFactory() {
        this(Executors.defaultThreadFactory());
    }

    /**
     * Construct a ThreadFactory with setDeamon(true) wrapping the given factory
     *
     * @param thread
     *            factory to wrap
     */
    public DaemonThreadFactory(ThreadFactory factory) {
        if (factory == null)
            throw new NullPointerException("factory cannot be null");
        this.factory = factory;
    }

    public Thread newThread(Runnable r) {
        final Thread t = factory.newThread(r);
        t.setDaemon(true);
        return t;
    }
}

任务执行线程池：

package com.grab.video.listener;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.ThreadFactory;

import javax.servlet.ServletContext;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;

public class ExecutorContextListener implements ServletContextListener {
	private ExecutorService executor;

	public void contextInitialized(ServletContextEvent arg0) {
		ServletContext context = arg0.getServletContext();
		int nr_executors = 3;
		ThreadFactory daemonFactory = new DaemonThreadFactory();
		try {
			nr_executors = Integer.parseInt(context.getInitParameter("nr-executors"));
		} catch (NumberFormatException ignore) {
		}

		if (nr_executors <= 1) {
			executor = Executors.newSingleThreadExecutor(daemonFactory);
		} else {
			executor = Executors.newFixedThreadPool(nr_executors, daemonFactory);
		}
		context.setAttribute("DOWNLOAD_EXECUTOR", executor);
	}

	public void contextDestroyed(ServletContextEvent arg0) {
		ServletContext context = arg0.getServletContext();
		executor.shutdownNow(); // or process/wait until all pending jobs are
								// done
	}
}

web.xml(项目启动时，启动任务线程类)

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
	id="school" version="2.5">
  <display-name>Archetype Created Web Application</display-name>

	  	<context-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>
				classpath:applicationContext.xml
			</param-value>
		</context-param>
		<listener>
			<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
		</listener>
		<listener>
    		<listener-class>com.grab.video.listener.ExecutorContextListener</listener-class>
  		</listener>

		<filter>
			<filter-name>encodingFilter</filter-name>
			<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
			<init-param>
				<param-name>encoding</param-name>
				<param-value>UTF-8</param-value>
			</init-param>
			<init-param>
				<param-name>forceEncoding</param-name>
				<param-value>true</param-value>
			</init-param>
		</filter>
		<filter-mapping>
			<filter-name>encodingFilter</filter-name>
			<url-pattern>/*</url-pattern>
		</filter-mapping>

		<servlet>
			<servlet-name>dispatcher</servlet-name>
			<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
			<load-on-startup>1</load-on-startup>
		</servlet>
		<servlet-mapping>
			<servlet-name>dispatcher</servlet-name>
			<url-pattern>/</url-pattern>
		</servlet-mapping>

		<session-config>
			<session-timeout>120</session-timeout>
		</session-config>

		<welcome-file-list>
			<welcome-file>index.jsp</welcome-file>
		</welcome-file-list>
		<error-page>
			<error-code>403</error-code>
			<location>/error/403</location>
		</error-page>
		<error-page>
			<error-code>404</error-code>
			<location>/error/404</location>
		</error-page>
</web-app>

下载页面：

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<%@ page language="java"
import="java.util.List"
import="com.grab.video.controller.VideoListModel"
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">

	<title>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">
	<!--
	<link rel="stylesheet" type="text/css" href="styles.css">
	-->

	  <link href="/resources/bootstrap/css/bootstrap.css" rel="stylesheet" />
	  <script src="/resources/js/jquery-1.7.2.js"></script>

	  <script type="text/javascript">

	  var userId;

	  $(document).ready(function(){
		  userId=$("#userId").val();

		  var timeId = setInterval(function () { 

			    $.ajax({
			        type: "POST",
			        url: "/grab/download/status",  /* 注意后面的名字对应CS的方法名称 */
			        data: "{}", /* 注意参数的格式和名称 */
			        contentType: "application/json; charset=utf-8",
			        dataType: "json",
			        success: function (data) {
			        	//console.log(data);
			        	for(var i in data) {
			        		   var percent = data[i].percent;
			        		   console.log(percent);
			        		   if(percent>0 && percent<100){
			        			   $("#progress"+data[i].id).html("<div class='progress'><div class='progress-bar' role='progressbar' aria-valuenow='60' aria-valuemin='0' aria-valuemax='100' style='width:"+ percent+"%;'>"+percent+"%</div></div>");
			        			   $("#downloadTd"+data[i].id).html("下载中...");
			        		   }else if(percent>100){
			        			   percent=100;
			        			   $("#progress"+data[i].id).html("<div class='progress'><div class='progress-bar' role='progressbar' aria-valuenow='60' aria-valuemin='0' aria-valuemax='100' style='width:"+ percent+"%;'>"+percent+"%</div></div>");
			        			   $("#downloadTd"+data[i].id).html("下载完");
			        		   }

			        		   if(data[i].status=="SUCCESS"){
			        			   $("#Tr"+data[i].id).remove();
			        		   }else if(data[i].status=="FAIL"){
			        			   $("#progress"+data[i].id).html("失败");
			        			   //$("#downloadTd"+data[i].id).html("失败");
			        		   }
			            }

			        }
			    });
		    },4000);
	  });

			//下载单个文件
			  function downvideo(obj){

				  	var num="0%";
				  	var htmlstr="<div class='progress'><div class='progress-bar' role='progressbar' aria-valuenow='60' aria-valuemin='0' aria-valuemax='100' style='width:"+ num+";'>"+num+"</div></div>";
				  	$(obj).parents(".downloadTd").siblings(".progressStatus").html(htmlstr);

				  	$(obj).parents(".downloadTd").html("下载中...");

				  	var videoId=$(obj).attr("videoId");
				  	var url=$(obj).attr("dataUrl");

				    //下载
				    $.post(url,{},function(data){});

				    var test = setTimeout(function(){
				    	//location.href ="/grab/download/manage?userId="+userId;
				    },1000);
			  }
	  </script>

  </head>

  <body>
<div class="container">

  <div class="col-md-12">

<div class="page-header clearfix">
  <h3 class="pull-left">视频管理</h3>
</div>

 <div>
      <ul class="nav nav-tabs">
        <li><a href="/grab/import">导入任务</a></li>
        <li class="active"><a href="/grab/download/manage">待抓视频</a></li>
        <li><a href="/grab/export">已抓视频</a></li>
      </ul>
</div>

<input type="hidden" id="userId" name="userId" value="${userId}"/> 

<%List<VideoListModel> ls = (List) request.getAttribute("videolist");
	if(ls.size()>0){%>
		   <form action="/grab/download/manage" method="post">
		         <button type="submit" class="btn btn-default btn-info pull-right" style="margin-top:10px;">全部下载</button>

				<input type="hidden" id="userId" class="userId" name="userId" value="<%=ls.get(0).getUserId() %>" />
				<div class="row">
					<table id="guanggao-table" class="table table-hover">
						<thead>
							<tr>
								<th>序号</th>
								<th>视频URL</th>
								<th>标题</th>
								<th>视频分类</th>
								<th width="15%">状态</th>
								<th>操作1</th>
								<th>操作2</th>
							</tr>
						</thead>
						<tbody>
						  <%for(int i=0;i<ls.size();i++){ %>
							<tr id="Tr<%=ls.get(i).getId() %>" pUrl="/grab/download/progress?videoId=<%=ls.get(i).getId() %>&trueName=<%=ls.get(i).getTrueName() %>&userId=<%=ls.get(i).getUserId() %>&url=<%=ls.get(i).getUrl() %>" >
							   <td> <%=i+1 %>
							      <input type="hidden" id="videoId" class="videoId" name="videoId" value="<%=ls.get(i).getId() %>" />
							      <input type="hidden" id="url" class="url" name="url" value="<%=ls.get(i).getUrl() %>" />
							      <input type="hidden" id="trueName" class="trueName" name="trueName" value="<%=ls.get(i).getTrueName() %>" />
							   </td>
							   <td>
							   		<a href="<%=ls.get(i).getUrl() %>" title="<%=ls.get(i).getUrl() %>"><%String str=ls.get(i).getUrl();String pathstr=str.substring(0, 20);%>
							   		  <%=pathstr %>...
							   		</a>
					   		   </td>
							   <td><%=ls.get(i).getTitle() %></td>
							   <td><%=ls.get(i).getClassifyName() %></td>
							   <td class="progressStatus" id="progress<%=ls.get(i).getId() %>">

							           <% if("NO".equals(ls.get(i).getStatus().trim())){%>
							                <div>待抓取</div>
							           <%}else if("WAIT".equals(ls.get(i).getStatus().trim())){ %>
							               <div>等待</div>
							           <%}else if("TRANSCODING".equals(ls.get(i).getStatus().trim())){ %>
							               	<div class="progress">
							               		<div class="progress-bar" role="progressbar" aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" style="width:1%;">1%</div>
						               		</div>
							           <%}else if("EXECUTE".equals(ls.get(i).getStatus().trim())){ %>

							           <%}else if("SUCCESS".equals(ls.get(i).getStatus().trim())){ %>
							                <div>成功</div>
							           <%}else{ %>
							                <div>失败 </div>
							           <%} %>
							   </td>
							   <td class="downloadTd" id="downloadTd<%=ls.get(i).getId() %>">
							     <% if("EXECUTE".equals(ls.get(i).getStatus().trim())){%>
						            	下载中...<div class="execute" videoId="<%=ls.get(i).getId() %>" style="display:none;"></div>

						         <%}else if("WAIT".equals(ls.get(i).getStatus().trim())){ %>
						       			等待
						         <%}else{%>
							      	<button type="button" class="btn btn-default btn-info" videoId="<%=ls.get(i).getId() %>" dataUrl="/grab/download/manage?videoId=<%=ls.get(i).getId() %>&trueName=<%=ls.get(i).getTrueName() %>&userId=<%=ls.get(i).getUserId() %>&url=<%=ls.get(i).getUrl() %>"  onclick="downvideo(this);">抓取</button>
						         <%} %>
						       </td>
						       <td>
						       	<!--
						       		<button type="button" class="btn btn-default" videoId="<%=ls.get(i).getId() %>" dataUrl="/grab/video/stop?videoId=<%=ls.get(i).getId() %>&trueName=<%=ls.get(i).getTrueName() %>&userId=<%=ls.get(i).getUserId() %>&url=<%=ls.get(i).getUrl() %>" onclick="stopVideo(this);">暂停</button>
						       	 -->
						       		<button type="button" class="btn btn-default" videoId="<%=ls.get(i).getId() %>" dataUrl="/grab/delete/videoId?videoId=<%=ls.get(i).getId() %>" onclick="deleteVideo(this);">删除</button>
						       </td>
							</tr>
						 <%} %>
					   </tbody>
					</table>
				</div>
		</form>
<%}else{ %>
	<div class="col-md-6" style="padding-top:30px;">暂无视频可以抓取</div>
<%} %>

     </div>
   </div>

  </body>
</html>

<script>
//删除文件
function deleteVideo(obj){
	var url=$(obj).attr("dataUrl");

    if (!confirm('真的要永久删除该内容吗？')) {
        return ;
    }else{
        $.ajax({
            type: "GET",
            url: url,  /* 注意后面的名字对应CS的方法名称 */
            data: "{}", /* 注意参数的格式和名称 */
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            success: function (data) {
            	console.log(data);
              	var mark=data.result;
                if(mark=="yes"){
                	// window.location.reload();
                	location.href ="/grab/download/manage?userId="+userId;
                }else{
                    alert("删除失败！");
                }

            }
        });
    }
}

//暂停下载
function stopVideo(obj){
	var url=$(obj).attr("dataUrl");

    if (!confirm('暂停下载')) {
        return ;
    }else{
        $.ajax({
            type: "GET",
            url: url,  /* 注意后面的名字对应CS的方法名称 */
            data: "{}", /* 注意参数的格式和名称 */
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            success: function (data) {
            	console.log(data);
              	var mark=data.result;
                if(mark=="yes"){
                	// window.location.reload();
                	location.href ="/grab/download/manage?userId="+userId;
                }else{
                    alert("操作失败！");
                }

            }
        });
    }
}

</script>