Java Netty未知SSL内容类型错误

1 月 Questions & Answers 7763

我正在尝试使用Netty 5.0.0编写HTTP客户端。Alpha2连接到专用服务器。我只能将这种连接描述为类似于WebSocket，但不是。服务器使用StartTLS，在服务器以200和内容类型响应之后，客户端将初始化StartTLS，如果您不这样做，服务器将断开与您的连接。一旦连接安全，服务器将在响应客户端命令时无限期地保持连接的活动状态。无论如何，下面是我的SSLDump日志，关于行“Unknown SSL content type 1”，在我尝试向服务器发送第一个命令时会发生这种情况。来自服务器的流量似乎不受阻碍，因为服务器每30-60秒发送一次ping心跳，我可以很好地读取它

SSLDump日志：

New TCP connection #1: Chiori-chan.local(54679) <-> ***.***.***.***(443)
0.1110 (0.1110)  C>S
---------------------------------------------------------------
GET /fwd/xControl HTTP/1.0

---------------------------------------------------------------

0.1776 (0.0666)  S>C
---------------------------------------------------------------
HTTP/1.0 200 OK
Content-Type: application/octet-stream
---------------------------------------------------------------

0.2440 (0.0664)  S>C
---------------------------------------------------------------

---------------------------------------------------------------

1 1  0.2582 (0.0142)  C>SV3.1(54)  Handshake
      ClientHello
        Version 3.1 
        random[32]=
          55 0c 50 be 81 96 8d 83 b2 8d 91 fd 02 3d f5 ff 
          1e 9d 65 48 3a 3b 8c a1 63 d4 e1 17 45 24 c8 90 
        cipher suites
        TLS_RSA_WITH_RC4_128_SHA
        TLS_RSA_WITH_RC4_128_MD5
        compression methods
                  NULL
1 2  0.3332 (0.0749)  S>CV3.1(81)  Handshake
      ServerHello
        Version 3.1 
        random[32]=
          fb 50 d9 c3 2d f2 b1 2f 43 ac 69 eb 54 6b 79 1e 
          34 68 0b e8 5b 90 74 d8 0a bd 0e 46 be 9b 80 54 
        session_id[32]=
          cf 67 a2 86 b4 c0 26 08 6a f4 4c 86 16 8a da df 
          34 fc da 75 66 cd 38 a6 c6 42 21 cf 3e a4 c9 73 
        cipherSuite         TLS_RSA_WITH_RC4_128_SHA
        compressionMethod                   NULL
1 3  0.3332 (0.0000)  S>CV3.1(471)  Handshake
      Certificate
        certificate[461]=
          30 82 01 ... omitted ... fa 3f 56 
1 4  0.3332 (0.0000)  S>CV3.1(4)  Handshake
      ServerHelloDone
1 5  0.3490 (0.0157)  C>SV3.1(134)  Handshake
      ClientKeyExchange
        EncryptedPreMasterSecret[128]=
          c5 f6 2e ... omitted ... 4b f2 64 
1 6  0.3490 (0.0000)  C>SV3.1(1)  ChangeCipherSpec
1 7  0.3490 (0.0000)  C>SV3.1(36)  Handshake
1 8  0.4161 (0.0671)  S>CV3.1(1)  ChangeCipherSpec
1 9  0.4161 (0.0000)  S>CV3.1(36)  Handshake
Unknown SSL content type 1
1 10 0.4891 (0.0729)  S>CV3.1(22)  Alert
1 11 0.4892 (0.0001)  S>CV3.1(22)  Alert
1 12 0.4893 (0.0000)  S>CV3.1(22)  Alert
1 13 0.4930 (0.0036)  C>SShort record
1    2.7379 (2.2449)  C>S  TCP FIN
1    2.8043 (0.0663)  S>C  TCP FIN

Java日志：

Mar 20, 2015 11:54:21 AM io.netty.handler.logging.LoggingHandler channelRegistered
INFO: [id: 0x811e4e4d] REGISTERED
Mar 20, 2015 11:54:21 AM io.netty.handler.logging.LoggingHandler connect
INFO: [id: 0x811e4e4d] CONNECT: /omitted:443
Mar 20, 2015 11:54:21 AM io.netty.handler.logging.LoggingHandler channelActive
INFO: [id: 0x811e4e4d, /10.0.0.152:54679 => /omitted:443] ACTIVE
Mar 20, 2015 11:54:22 AM io.netty.handler.logging.LoggingHandler write
INFO: [id: 0x811e4e4d, /10.0.0.152:54679 => /omitted:443] WRITE: 40B
GET /fwd/xControl HTTP/1.0
Mar 20, 2015 11:54:22 AM io.netty.handler.logging.LoggingHandler flush
INFO: [id: 0x811e4e4d, /10.0.0.152:54679 => /omitted:443] FLUSH
Mar 20, 2015 11:54:22 AM io.netty.handler.logging.LoggingHandler channelRead
INFO: [id: 0x811e4e4d, /10.0.0.152:54679 => /omitted:443] RECEIVED: 57B
HTTP/1.0 200 OK
Content-Type: application/octet-stream
Mar 20, 2015 11:54:22 AM io.netty.handler.logging.LoggingHandler channelRead
INFO: [id: 0x811e4e4d, /10.0.0.152:54679 => /omitted:443] RECEIVED: 2B
         +-------------------------------------------------+
         |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |
+--------+-------------------------------------------------+----------------+
|00000000| 0d 0a                                           |..              |
+--------+-------------------------------------------------+----------------+
RCVD: DefaultHttpResponse(decodeResult: success, version: HTTP/1.0)
HTTP/1.0 200 OK
Content-Type: application/octet-stream
Mar 20, 2015 11:54:22 AM io.netty.handler.logging.LoggingHandler userEventTriggered
INFO: [id: 0x811e4e4d, /10.0.0.152:54679 => /omitted:443] USER_EVENT: io.netty.handler.ssl.SslHandshakeCompletionEvent@1dc9b12c
Mar 20, 2015 11:54:22 AM io.netty.handler.logging.LoggingHandler write
INFO: [id: 0x811e4e4d, /10.0.0.152:54679 => /omitted:443] WRITE: 66B
         +-------------------------------------------------+
         |  0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f |
+--------+-------------------------------------------------+----------------+
|00000000| 01 00 1a 00 16 00 00 00 0b 03 06 05 7e 4c 47 49 |............~LGI|
|00000010| 4e 03 00 00 00 00 00 98 9a c0 0b 02 02 02 01 00 |N...............|
|00000020| 20 00 1c 00 00 00 0b 03 06 05 7e 4c 47 49 4e 03 | .........~LGIN.|
|00000030| 00 00 00 00 00 9c 9a c0 0b 02 06 05 61 64 6d 69 |............admi|
|00000040| 6e 02                                           |n.              |
+--------+-------------------------------------------------+----------------+
Mar 20, 2015 11:54:22 AM io.netty.handler.logging.LoggingHandler flush
INFO: [id: 0x811e4e4d, /10.0.0.152:54679 => /omitted:443] FLUSH
Mar 20, 2015 11:54:22 AM io.netty.handler.logging.LoggingHandler exceptionCaught
INFO: [id: 0x811e4e4d, /10.0.0.152:54679 => /omitted:443] EXCEPTION: io.netty.handler.codec.DecoderException: javax.net.ssl.SSLException: Received fatal alert: protocol_version
io.netty.handler.codec.DecoderException: javax.net.ssl.SSLException: Received fatal alert: protocol_version
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:347)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:230)
    at io.netty.channel.ChannelHandlerInvokerUtil.invokeChannelReadNow(ChannelHandlerInvokerUtil.java:84)
    at io.netty.channel.DefaultChannelHandlerInvoker.invokeChannelRead(DefaultChannelHandlerInvoker.java:153)
    at io.netty.channel.PausableChannelEventExecutor.invokeChannelRead(PausableChannelEventExecutor.java:86)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:389)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:956)
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:127)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:514)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:471)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:385)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:351)
    at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
    at io.netty.util.internal.chmv8.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1412)
    at io.netty.util.internal.chmv8.ForkJoinTask.doExec(ForkJoinTask.java:280)
    at io.netty.util.internal.chmv8.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:877)
    at io.netty.util.internal.chmv8.ForkJoinPool.scan(ForkJoinPool.java:1706)
    at io.netty.util.internal.chmv8.ForkJoinPool.runWorker(ForkJoinPool.java:1661)
    at io.netty.util.internal.chmv8.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:126)
Caused by: javax.net.ssl.SSLException: Received fatal alert: protocol_version
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:208)
    at sun.security.ssl.SSLEngineImpl.fatal(SSLEngineImpl.java:1619)
    at sun.security.ssl.SSLEngineImpl.fatal(SSLEngineImpl.java:1587)
    at sun.security.ssl.SSLEngineImpl.recvAlert(SSLEngineImpl.java:1756)
    at sun.security.ssl.SSLEngineImpl.readRecord(SSLEngineImpl.java:1060)
    at sun.security.ssl.SSLEngineImpl.readNetRecord(SSLEngineImpl.java:884)
    at sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:758)
    at javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:624)
    at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1071)
    at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:938)
    at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:891)
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:316)
    ... 18 more

Mar 20, 2015 11:54:22 AM io.netty.channel.DefaultChannelPipeline$TailContext exceptionCaught
WARNING: An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.
io.netty.handler.codec.DecoderException: javax.net.ssl.SSLException: Received fatal alert: protocol_version
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:347)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:230)
    at io.netty.channel.ChannelHandlerInvokerUtil.invokeChannelReadNow(ChannelHandlerInvokerUtil.java:84)
    at io.netty.channel.DefaultChannelHandlerInvoker.invokeChannelRead(DefaultChannelHandlerInvoker.java:153)
    at io.netty.channel.PausableChannelEventExecutor.invokeChannelRead(PausableChannelEventExecutor.java:86)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:389)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:956)
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:127)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:514)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:471)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:385)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:351)
    at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
    at io.netty.util.internal.chmv8.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1412)
    at io.netty.util.internal.chmv8.ForkJoinTask.doExec(ForkJoinTask.java:280)
    at io.netty.util.internal.chmv8.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:877)
    at io.netty.util.internal.chmv8.ForkJoinPool.scan(ForkJoinPool.java:1706)
    at io.netty.util.internal.chmv8.ForkJoinPool.runWorker(ForkJoinPool.java:1661)
    at io.netty.util.internal.chmv8.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:126)
Caused by: javax.net.ssl.SSLException: Received fatal alert: protocol_version
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:208)
    at sun.security.ssl.SSLEngineImpl.fatal(SSLEngineImpl.java:1619)
    at sun.security.ssl.SSLEngineImpl.fatal(SSLEngineImpl.java:1587)
    at sun.security.ssl.SSLEngineImpl.recvAlert(SSLEngineImpl.java:1756)
    at sun.security.ssl.SSLEngineImpl.readRecord(SSLEngineImpl.java:1060)
    at sun.security.ssl.SSLEngineImpl.readNetRecord(SSLEngineImpl.java:884)
    at sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:758)
    at javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:624)
    at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1071)
    at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:938)
    at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:891)
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:316)
    ... 18 more

Mar 20, 2015 11:54:22 AM io.netty.handler.logging.LoggingHandler exceptionCaught
INFO: [id: 0x811e4e4d, /10.0.0.152:54679 => /omitted:443] EXCEPTION: io.netty.handler.codec.DecoderException: javax.net.ssl.SSLException: Received fatal alert: bad_record_mac
io.netty.handler.codec.DecoderException: javax.net.ssl.SSLException: Received fatal alert: bad_record_mac
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:347)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:230)
    at io.netty.channel.ChannelHandlerInvokerUtil.invokeChannelReadNow(ChannelHandlerInvokerUtil.java:84)
    at io.netty.channel.DefaultChannelHandlerInvoker.invokeChannelRead(DefaultChannelHandlerInvoker.java:153)
    at io.netty.channel.PausableChannelEventExecutor.invokeChannelRead(PausableChannelEventExecutor.java:86)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:389)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:956)
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:127)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:514)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:471)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:385)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:351)
    at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
    at io.netty.util.internal.chmv8.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1412)
    at io.netty.util.internal.chmv8.ForkJoinTask.doExec(ForkJoinTask.java:280)
    at io.netty.util.internal.chmv8.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:877)
    at io.netty.util.internal.chmv8.ForkJoinPool.scan(ForkJoinPool.java:1706)
    at io.netty.util.internal.chmv8.ForkJoinPool.runWorker(ForkJoinPool.java:1661)
    at io.netty.util.internal.chmv8.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:126)
Caused by: javax.net.ssl.SSLException: Received fatal alert: bad_record_mac
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:208)
    at sun.security.ssl.SSLEngineImpl.fatal(SSLEngineImpl.java:1619)
    at sun.security.ssl.SSLEngineImpl.fatal(SSLEngineImpl.java:1587)
    at sun.security.ssl.SSLEngineImpl.recvAlert(SSLEngineImpl.java:1756)
    at sun.security.ssl.SSLEngineImpl.readRecord(SSLEngineImpl.java:1060)
    at sun.security.ssl.SSLEngineImpl.readNetRecord(SSLEngineImpl.java:884)
    at sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:758)
    at javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:624)
    at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1071)
    at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:938)
    at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:891)
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:316)
    ... 18 more

Mar 20, 2015 11:54:22 AM io.netty.channel.DefaultChannelPipeline$TailContext exceptionCaught
WARNING: An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.
io.netty.handler.codec.DecoderException: javax.net.ssl.SSLException: Received fatal alert: bad_record_mac
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:347)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:230)
    at io.netty.channel.ChannelHandlerInvokerUtil.invokeChannelReadNow(ChannelHandlerInvokerUtil.java:84)
    at io.netty.channel.DefaultChannelHandlerInvoker.invokeChannelRead(DefaultChannelHandlerInvoker.java:153)
    at io.netty.channel.PausableChannelEventExecutor.invokeChannelRead(PausableChannelEventExecutor.java:86)
    at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:389)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:956)
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:127)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:514)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:471)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:385)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:351)
    at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
    at io.netty.util.internal.chmv8.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1412)
    at io.netty.util.internal.chmv8.ForkJoinTask.doExec(ForkJoinTask.java:280)
    at io.netty.util.internal.chmv8.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:877)
    at io.netty.util.internal.chmv8.ForkJoinPool.scan(ForkJoinPool.java:1706)
    at io.netty.util.internal.chmv8.ForkJoinPool.runWorker(ForkJoinPool.java:1661)
    at io.netty.util.internal.chmv8.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:126)
Caused by: javax.net.ssl.SSLException: Received fatal alert: bad_record_mac
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:208)
    at sun.security.ssl.SSLEngineImpl.fatal(SSLEngineImpl.java:1619)
    at sun.security.ssl.SSLEngineImpl.fatal(SSLEngineImpl.java:1587)
    at sun.security.ssl.SSLEngineImpl.recvAlert(SSLEngineImpl.java:1756)
    at sun.security.ssl.SSLEngineImpl.readRecord(SSLEngineImpl.java:1060)
    at sun.security.ssl.SSLEngineImpl.readNetRecord(SSLEngineImpl.java:884)
    at sun.security.ssl.SSLEngineImpl.unwrap(SSLEngineImpl.java:758)
    at javax.net.ssl.SSLEngine.unwrap(SSLEngine.java:624)
    at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1071)
    at io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:938)
    at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:891)
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:316)
    ... 18 more

有人能给我解释一下为什么我会犯这个错误，以及我能做些什么来弥补它吗？我最初认为这是我用来写数据的对象类型，即ByteBuf，但我尝试了许多其他对象，似乎没有效果。我肯定有一个明显的原因，我只是没有看到。我对将SSL与Netty一起使用还很陌生，但遗憾的是，我找不到像我认为Netty一样广泛使用的文档

我很感激人们能提供的任何帮助

编辑：

有趣的是，使用我使用同一个SSL引擎编程的服务器（也是Netty和Java），它也可以建立连接，但在应该接收我的命令的地方，它会打印这个错误。这会让我相信我的客户机没有正确编码ssl数据包，因为它报告的记录是纯文本的

Mar 20, 2015 3:18:36 PM io.netty.channel.DefaultChannelPipeline$TailHandler exceptionCaught
WARNING: An exceptionCaught() event was fired, and it reached at the tail of the pipeline. It usually means the last handler in the pipeline did not handle the exception.
io.netty.handler.ssl.NotSslRecordException: not an SSL/TLS record: 01000c00080000000b01060470696e67
    at io.netty.handler.ssl.SslHandler.decode(SslHandler.java:832)
    at io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:228)
    at io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:141)
    at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRead(DefaultChannelHandlerContext.java:341)
    at io.netty.channel.DefaultChannelHandlerContext.fireChannelRead(DefaultChannelHandlerContext.java:327)
    at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:785)
    at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:116)
    at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:494)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:461)
    at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:378)
    at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:350)
    at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116)
    at java.lang.Thread.run(Thread.java:745)

共 (1) 个答案

# 1 楼答案

看来我是个十足的白痴。就像我说的，我对使用SSL和Netty是新手

事实证明，在我的SslHandler（）构造函数下的代码中，还有第二个可选的布尔值，名为startTLS。如果设置为True，SslHandler将以明文形式输出第一条消息。javadoc说StartTLS is the communication pattern that secures the wire in the middle of the plaintext connection. Please note that it is different from SSL/TLS, that secures the wire from the beginning of the connection.，这让我很困惑，因为我是在发送HTTP头之后启动SSL的，所以我认为StartTLS是我想要的

再一次，我对我能找到的烦琐文件的缺乏感到失望。我只是松了一口气，这个愚蠢的问题现在已经解决了，我可以继续反向工程这个网络协议

Python中文网

有 Java 编程相关的问题?

Java Netty未知SSL内容类型错误

共 (1) 个答案

# 1 楼答案