java支持html5视频流技术Pseudostreaming http://www.itdadao.com/articles/c15a144929p0.html
html5 video调用servlet播放 http://www.what21.com/programming/java/javaweb-summary/html5_video_servlet.html
Tomcat下Servlet传输视频流 http://www.voidcn.com/blog/acmersch/article/p-2940644.html
1. HTML5的Video标签
<video> 标签定义视频，可以播放任何电影片段或其他视频流。
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<video width="100%" height="100%" controls="controls"> <source src="<%=path %>/video.action" type="video/ogg" /> <source src="<%=path %>/video.action" type="video/mp4" /> 您的浏览器不支持 video 标签。 </video> |
2. Video播放调用Servlet
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package net.ultratool; import java.io.BufferedInputStream; import java.io.ByteArrayInputStream; import java.io.File; import java.io.FileInputStream; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; /** * @author ultratool */ public class VideoStreamServlet extends HttpServlet { private static final long serialVersionUID = 6948918204420124894L; @Override protected void service(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException { // 取头参数 String range = request.getHeader("range"); String browser = request.getHeader("User-Agent"); if (browser.indexOf("Firefox") != -1) { // 火狐浏览器 byte[] data = getBytesFromFile(new File("C:/media/final.ogg")); response.setContentType("video/ogg"); response.setContentLength(data.length); response.setHeader("Content-Range", range + Integer.valueOf(data.length - 1)); response.setHeader("Accept-Ranges", "bytes"); response.setHeader("Etag", "W/\"9767057-1323779115364\""); byte[] content = new byte[1024]; BufferedInputStream is = new BufferedInputStream(new ByteArrayInputStream(data)); response.reset(); OutputStream os = response.getOutputStream(); while (is.read(content) != -1) { os.write(content); } is.close(); os.close(); } else if (browser.indexOf("MSIE") != -1) { // IE9以上浏览器 byte[] data = getBytesFromFile(new File("C:/media/final.mp4")); String diskfilename = "final.mp4"; response.setContentType("video/mpeg"); // response.setContentType("application/octet-stream"); response.setHeader("Content-Disposition", "attachment; filename=\"" + diskfilename + "\""); response.setContentLength(data.length); response.setHeader("Content-Range", range + Integer.valueOf(data.length - 1)); response.setHeader("Accept-Ranges", "text/x-dvi"); response.setHeader("Etag", "W/\"9767057-1323779115364\""); byte[] content = new byte[1024]; BufferedInputStream is = new BufferedInputStream(new ByteArrayInputStream(data)); response.reset(); OutputStream os = response.getOutputStream(); while (is.read(content) != -1) { os.write(content); } is.close(); os.close(); } else if (browser.indexOf("Chrome") != -1) { // 谷歌浏览器 byte[] data = getBytesFromFile(new File("C:/media/final.mp4")); String diskfilename = "final.mp4"; response.setContentType("video/mp4"); // response.setContentType("application/octet-stream"); response.setHeader("Content-Disposition", "attachment; filename=\"" + diskfilename + "\""); System.out.println("data.length " + data.length); response.setContentLength(data.length); response.setHeader("Content-Range", range + Integer.valueOf(data.length - 1)); response.setHeader("Accept-Ranges", "bytes"); response.setHeader("Etag", "W/\"9767057-1323779115364\""); byte[] content = new byte[1024]; BufferedInputStream is = new BufferedInputStream(new ByteArrayInputStream(data)); response.reset(); OutputStream os = response.getOutputStream(); while (is.read(content) != -1) { os.write(content); } is.close(); os.close(); } else if (browser.indexOf("CoreMedia") != -1) { // 其他浏览器 byte[] data = getBytesFromFile(new File("D:/media/final.mp4")); String diskfilename = "final.mp4"; response.setContentType("video/mpeg"); response.setHeader("Content-Disposition", "attachment; filename=\"" + diskfilename + "\""); byte[] content = new byte[1024]; BufferedInputStream is = new BufferedInputStream(new ByteArrayInputStream(data)); response.reset(); OutputStream os = response.getOutputStream(); while (is.read(content) != -1) { os.write(content); } is.close(); os.close(); } } /** * 读取文件字节 * * @param file * @return * @throws IOException */ private static byte[] getBytesFromFile(File file) throws IOException { InputStream is = new FileInputStream(file); long length = file.length(); if (length > Integer.MAX_VALUE) { return null; } byte[] bytes = new byte[(int) length]; int offset = 0; int numRead = 0; while ((offset < bytes.length) && ((numRead = is.read(bytes, offset, bytes.length - offset)) >= 0)) { offset += numRead; } if (offset < bytes.length) { throw new IOException("Could not completely read file " + file.getName()); } is.close(); return bytes; } } |
