使用NanoHttpd进行视频流传输,错误：java.net.SocketException：sendto failed：EPIPE(Broken pipe)

我需要流式传输视频并在网页中持续播放.我正在使用Nanohttpd库在我的Android应用程序中运行服务器.我可以在页面加载时流式传输和播放视频.视频完成播放后,我无法再播放视频.每次我需要刷新页面才能播放视频.尝试第二次玩时出现以下错误.

java.net.socketException: sendto Failed: EPIPE (broken pipe)
    at libcore.io.IoBridge.maybeThrowAfterSendto(IoBridge.java:546)
    at libcore.io.IoBridge.sendto(IoBridge.java:515)
    at java.net.PlainSocketImpl.write(PlainSocketImpl.java:504)
    at java.net.PlainSocketImpl.access$100(PlainSocketImpl.java:37)
    at java.net.PlainSocketImpl$PlainSocketoutputStream.write(PlainSocketImpl.java:266)
    at server.http.android.androidhttpserver.server.NanoHTTPD$Response.sendBody(NanoHTTPD.java:1386)
    at server.http.android.androidhttpserver.server.NanoHTTPD$Response.sendBodyWithCorrectEncoding(NanoHTTPD.java:1359)
    at server.http.android.androidhttpserver.server.NanoHTTPD$Response.sendBodyWithCorrectTransferAndEncoding(NanoHTTPD.java:1349)
    at server.http.android.androidhttpserver.server.NanoHTTPD$Response.send(NanoHTTPD.java:1335)
    at server.http.android.androidhttpserver.server.NanoHTTPD$HTTPSession.execute(NanoHTTPD.java:769)
    at server.http.android.androidhttpserver.server.NanoHTTPD$ClientHandler.run(NanoHTTPD.java:186)
    at java.lang.Thread.run(Thread.java:818)
Caused by: android.system.ErrnoException: sendto Failed: EPIPE (broken pipe)
    at libcore.io.Posix.sendtoBytes(Native Method)
    at libcore.io.Posix.sendto(Posix.java:176)
    at libcore.io.BlockGuardOs.sendto(BlockGuardOs.java:278)
    at libcore.io.IoBridge.sendto(IoBridge.java:513)
    at java.net.PlainSocketImpl.write(PlainSocketImpl.java:504)
    at java.net.PlainSocketImpl.access$100(PlainSocketImpl.java:37)
    at java.net.PlainSocketImpl$PlainSocketoutputStream.write(PlainSocketImpl.java:266)
    at server.http.android.androidhttpserver.server.NanoHTTPD$Response.sendBody(NanoHTTPD.java:1386)
    at server.http.android.androidhttpserver.server.NanoHTTPD$Response.sendBodyWithCorrectEncoding(NanoHTTPD.java:1359)
    at server.http.android.androidhttpserver.server.NanoHTTPD$Response.sendBodyWithCorrectTransferAndEncoding(NanoHTTPD.java:1349)
    at server.http.android.androidhttpserver.server.NanoHTTPD$Response.send(NanoHTTPD.java:1335)
    at server.http.android.androidhttpserver.server.NanoHTTPD$HTTPSession.execute(NanoHTTPD.java:769)
    at server.http.android.androidhttpserver.server.NanoHTTPD$ClientHandler.run(NanoHTTPD.java:186)
    at java.lang.Thread.run(Thread.java:818)

我发送的回复如下.

@Override
public Response serve(IHTTPSession session) {
   FileInputStream fis = null;
    File file = new File("/storage/emulated/0/DCIM/Camera/VIDEO.mp4");
    try{
        if(file.exists())
        {
            fis = new FileInputStream(file);
        }
        else
         Log.d("FOF :","File Not exists:");
    }catch (FileNotFoundException e)
    {
        e.printstacktrace();
    }
    return new NanoHTTPD.Response(Response.Status.OK,"video/mp4",fis,file.length() );
}

用于访问视频的HTML文件是

utoplay loop>
    

请为我提供一个连续播放视频的解决方案,而无需刷新网页.

最佳答案

我成功地使用以下代码：

@Override
public Response serve(IHTTPSession session) {
    Mapgetmethod();
    String uri = session.getUri();
    MaparatorChar,'/');
    if (uri.indexOf('?') >= 0) {
        uri = uri.substring(0,uri.indexOf('?'));
    }

    File f = new File(uri);
    return serveFile(uri,header,f);
}

private Response serveFile(String uri,Mapculate etag
        String etag = Integer.toHexString((file.getAbsolutePath() +
                file.lastModified() + "" + file.length()).hashCode());

        // Support (simple) skipping:
        long startFrom = 0;
        long endAt = -1;
        String range = header.get("range");
        if (range != null) {
            if (range.startsWith("bytes=")) {
                range = range.substring("bytes=".length());
                int minus = range.indexOf('-');
                try {
                    if (minus > 0) {
                        startFrom = Long.parseLong(range.substring(0,minus));
                        endAt = Long.parseLong(range.substring(minus + 1));
                    }
                } catch (NumberFormatException ignored) {
                }
            }
        }

        // Change return code and add Content-Range header when skipping is requested
        long fileLen = file.length();
        if (range != null && startFrom >= 0) {
            if (startFrom >= fileLen) {
                res = createResponse(Response.Status.RANGE_NOT_SATISFIABLE,"");
                res.addHeader("Content-Range","bytes 0-0/" + fileLen);
                res.addHeader("ETag",etag);
            } else {
                if (endAt < 0) {
                    endAt = fileLen - 1;
                }
                long newLen = endAt - startFrom + 1;
                if (newLen < 0) {
                    newLen = 0;
                }

                final long dataLen = newLen;
                FileInputStream fis = new FileInputStream(file) {
                    @Override
                    public int available() throws IOException {
                        return (int) dataLen;
                    }
                };
                fis.skip(startFrom);

                res = createResponse(Response.Status.PARTIAL_CONTENT,mime,fis);
                res.addHeader("Content-Length","" + dataLen);
                res.addHeader("Content-Range","bytes " + startFrom + "-" +
                        endAt + "/" + fileLen);
                res.addHeader("ETag",etag);
            }
        } else {
            if (etag.equals(header.get("if-none-match")))
                res = createResponse(Response.Status.NOT_MODIFIED,"");
            else {
                res = createResponse(Response.Status.OK,new FileInputStream(file));
                res.addHeader("Content-Length","" + fileLen);
                res.addHeader("ETag",etag);
            }
        }
    } catch (IOException ioe) {
        res = getResponse("Forbidden: Reading file Failed");
    }

    return (res == null) ? getResponse("Error 404: File not found") : res;
}

// Announce that the file server accepts partial content requests
private Response createResponse(Response.Status status,String mimeType,InputStream message) {
    Response res = new Response(status,mimeType,message);
    res.addHeader("Accept-Ranges","bytes");
    return res;
}

// Announce that the file server accepts partial content requests
private Response createResponse(Response.Status status,String message) {
    Response res = new Response(status,"bytes");
    return res;
}

private Response getResponse(String message) {
    return createResponse(Response.Status.OK,"text/plain",message);
}