servlet + video streaming + ClientAbortException

Question

当我试图从服务器流式传输视频文件时，我正面临servlet的这个问题。为文件

提供服务器的代码

    if (contentType == null) {
        contentType = "application/octet-stream";
    }
    response.reset();
    response.setBufferSize(ServerConfiguration.DEFAULT_BUFFER_SIZE);
    response.setContentType(contentType);
    response.setHeader("Content-Length", String.valueOf(file.length()));
    response.setHeader("Content-Disposition", "inline; filename="" + file.getName() + """);
    response.setHeader("Cache-Control", "public") ;

     BufferedInputStream input = null;
     BufferedOutputStream output = null;
        try {
            // Open streams.
            input = new BufferedInputStream(new FileInputStream(file), ServerConfiguration.DEFAULT_BUFFER_SIZE);
            output = new BufferedOutputStream(response.getOutputStream(), ServerConfiguration.DEFAULT_BUFFER_SIZE);
            // Write file contents to response.
            byte[] buffer = new byte[ServerConfiguration.DEFAULT_BUFFER_SIZE];
            int length;
            while ((length = input.read(buffer)) > 0) {
                output.write(buffer, 0, length);
            }
        }
        catch (Exception e) {
            log(e);
        }
            finally {
            // Gently close streams.
            close(output);
            close(input);
        }

我已经将内容配置设置为'inline'，当我调试时，我可以看到请求在无限循环中到达服务器，每次它都会抛出这个错误:

ClientAbortException:  java.io.IOException
at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:369)
at org.apache.tomcat.util.buf.ByteChunk.append(ByteChunk.java:327)
at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:392)
at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:381)
at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:93)
at java.io.BufferedOutputStream.write(Unknown Source)
at com.venividi.ResourceManager.UploadFileManager.getMediaFiles(UploadFileManager.java:118)
at com.venividi.Servlet.VenividiServlet.doGet(VenividiServlet.java:182)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:621)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:304)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at com.venividi.Servlet.CharacterEncodingFilter.doFilter(CharacterEncodingFilter.java:29)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:164)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:462)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:563)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:399)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:306)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:322)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:1732)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException
at org.apache.coyote.http11.InternalAprOutputBuffer.flushBuffer(InternalAprOutputBuffer.java:208)
at org.apache.coyote.http11.InternalAprOutputBuffer$SocketOutputBuffer.doWrite(InternalAprOutputBuffer.java:238)
at org.apache.coyote.http11.filters.IdentityOutputFilter.doWrite(IdentityOutputFilter.java:84)
at org.apache.coyote.http11.AbstractOutputBuffer.doWrite(AbstractOutputBuffer.java:190)
at org.apache.coyote.Response.doWrite(Response.java:533)
at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:364)
... 28 more

如果我将内容配置类型更改为附件 -我可以下载文件并从本地系统播放文件(这意味着数据是正确的)，但我无法播放此视频文件(通过url)使用VLC播放器(网络流选项)或我的自定义iphone媒体播放器。

我想做一些像服务器- http://www.yo-yo.org/mp4/yu.mp4 ..我可以通过给VLC或我的Iphone应用程序的URL来播放这个文件。文件网址(http://www.yo-yo.org/mp4/) ..

悠悠mp4文件的响应头是

Accept-Ranges:字节连接:维生内容长度:7846115内容类型:文本/平原;utf - 8字符集=日期:2011年8月15日(星期一)18:01:12 GMTETag:"32 a000f - 77 - b8e3 - 3 - bd314df3c340"点火电极:超时= 2最后修改:2003年5月9日(星期五)01:39:49服务器:Apache/2.2.8 (Fedora)

而我的服务器的响应头是

cache - control:公众附加:内联;文件名= " 3648 ef48 - 71 - bf - 4393 - 9 - c0e - 89 fda68a683c.mp4"内容长度:7846115内容类型:视频/mp4日期:2011年8月15日，星期一，18:10:07 GMT服务器:Apache-Coyote/1.1

请提供一些建议。我将非常感谢任何帮助

的问候叙利娅

Answer 1

我找到了解决上述问题的方法。chrome发送字节范围的请求，服务器应该处理这样的请求，而不是在单个请求中写入完整的文件。

这个链接很有用:Servlet支持简历