前提：找到視頻的m3u8文件地址

package com.main;import java.io.BufferedReader; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.io.InputStreamReader; import java.io.RandomAccessFile; import java.net.HttpURLConnection; import java.net.URL; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.Comparator; import java.util.Date; import java.util.List; import java.util.regex.Matcher; import java.util.regex.Pattern;public class Main {public static void main(String[] args) {String url = "https://youku163.zuida-bofang.com/20181001/16086_4fce2677/800k/hls/index.m3u8";List<String> tsList = getTSPathByM3U8(url);String basePath = url.substring(0, url.lastIndexOf("/") + 1);for (String tsPath : tsList) {download(basePath + tsPath);}mergeFile(System.getProperty("user.dir") + File.separator + "tmp");}/*** 下載資源* * @param urlStr*/public static void download(String urlStr) {try {URL url = new URL(urlStr);String urlPath = url.getPath();String fileName = "";if (urlPath.lastIndexOf("/") >= 0)fileName = urlPath.substring(urlPath.lastIndexOf("/") + 1);elsefileName = urlPath;HttpURLConnection connection = (HttpURLConnection) url.openConnection(); // 設置超時時間connection.setConnectTimeout(60 * 1000);// 連接成功，開始下載文件if (connection.getResponseCode() == 200) {// 在當前運行目錄下建立臨時目錄，存放臨時文件File tmpDir = new File(System.getProperty("user.dir") + File.separator + "tmp");if (!tmpDir.exists())tmpDir.mkdir();File file = new File(tmpDir.getAbsolutePath() + File.separator + fileName);if (file.exists() && fileIsUsed(file)) {// 文件存在且被占用return;} else {file.createNewFile();}// 開始下載InputStream is = connection.getInputStream();int ContentLength = connection.getContentLength();FileOutputStream fos = new FileOutputStream(file);byte[] buffer = new byte[1024];int i, length = 0;while ((i = is.read(buffer)) != -1) {length += i;System.out.println(fileName + "\t正在下載(" + length + "/" + ContentLength + ")");fos.write(buffer);}fos.flush();is.close();fos.close();System.out.println(fileName + "\t下載完成");}} catch (IOException e) {e.printStackTrace();}}/*** 從m3u8文件中解析出ts文件位置* * @param m3u8_Path* @return*/public static List<String> getTSPathByM3U8(String m3u8_Path) {try {System.out.println("開始訪問m3u8文件并解析內容");HttpURLConnection connection = (HttpURLConnection) new URL(m3u8_Path).openConnection(); // 設置超時時間connection.setConnectTimeout(60 * 1000);List<String> list = new ArrayList<String>();String charSet = getCharSet(connection.getContentType());BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream(), charSet));String line;while ((line = br.readLine()) != null) {if (line.contains("ts"))list.add(line);}br.close();System.out.println("m3u8文件解析成功");return list;} catch (Exception e) {e.printStackTrace();}return null;}/*** 合并ts文件* * @param dirPath*/public static void mergeFile(String dirPath) {File dir = new File(dirPath);if (!dir.exists() || !dir.isDirectory()) {System.out.println("文件目錄不存在或不是文件夾");return;}File mergeFile = new File(dir.getParent() + File.separator + System.currentTimeMillis() + ".ts");try {mergeFile.createNewFile();} catch (IOException e) {System.out.println("創建合并文件失敗");}File[] tsFiles = orderByName(dir.listFiles());FileInputStream fis = null;FileOutputStream fos = null;try {fos = new FileOutputStream(mergeFile);for (File file : tsFiles) {fis = new FileInputStream(file);int i = 0;byte[] buffer = new byte[1024];while ((i = fis.read(buffer)) != -1) {fos.write(buffer, 0, i);}System.out.println(file.getName() + "合并成功");}fis.close();fos.close();System.out.println("------------------合并成功------------------");} catch (Exception e) {e.printStackTrace();}}/*** 根據文件名稱進行文件的排序* * @param files* @return*/private static File[] orderByName(File[] files) {List<File> fileList = Arrays.asList(files);Collections.sort(fileList, new Comparator<File>() {@Overridepublic int compare(File f1, File f2) {if (f1.isDirectory() && f2.isFile())return -1;if (f1.isFile() && f2.isDirectory())return 1;return f1.getName().compareTo(f2.getName());}});return files;}/*** 打印連接基本信息* * @param conn*/private void printConnInfo(HttpURLConnection conn) {try {System.out.println("狀態碼：" + conn.getResponseCode());System.out.println("狀態信息：" + conn.getResponseMessage());} catch (IOException e) {e.printStackTrace();}SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");System.out.println("服務器時間：" + sdf.format(new Date(conn.getDate())));System.out.println("服務器：" + conn.getHeaderField("Server"));System.out.println("文件類型：" + conn.getContentType());System.out.println("文件大小：" + conn.getContentLength());URL url = conn.getURL();System.out.println("網址：" + url.getHost());System.out.println("路徑：" + url.getPath());String urlPath = url.getPath();String fileName = "";if (urlPath.lastIndexOf("/") >= 0)fileName = urlPath.substring(urlPath.lastIndexOf("/") + 1);elsefileName = urlPath;System.out.println("文件名：" + fileName);}/*** 獲取字符編碼* * @param str* @return*/private static String getCharSet(String str) {String charset = "UTF-8";Pattern pattern = Pattern.compile("charset=\\S*");Matcher matcher = pattern.matcher(str);if (matcher.find()) {charset = matcher.group().replace("charset=", "");}return charset;}/*** 判斷文件是否被占用* * @param file* @return*/private static boolean fileIsUsed(File file) {try {RandomAccessFile raf = new RandomAccessFile(file, "rw");raf.close();System.out.println("文件未被使用");return false;} catch (Exception e) {System.out.println("文件被占用");}return true;}}

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