我正在使用Scalecube的Socket.IO Java Server，如他们的documentation所述，将我的java后端的消息发送到侦听套接字的前端的javascript代码。不幸的是，我无法完成套接字连接。我正在localhost:5000上的套接字中连续收到400 Bad Request。
我做错了什么？
前端
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Socket.IO</title>
<script src="socket.io.js"></script>
<script>
var socket = io('http://localhost:5000');
socket.on('connect', function(){
console.log('connect');
});
socket.on('event', function(data){
console.log(data);
});
socket.on('disconnect', function(){
console.log('disconnect');
});
</script>
</head>
<body>
</body>
</html>
后端
package test;
import io.netty.buffer.ByteBuf;
import io.netty.util.CharsetUtil;
import io.scalecube.socketio.Session;
import io.scalecube.socketio.SocketIOAdapter;
import io.scalecube.socketio.SocketIOServer;
import org.apache.log4j.BasicConfigurator;
public class Test {
public static void main(String [] args) {
BasicConfigurator.configure();
SocketIOServer echoServer = SocketIOServer.newInstance(5000);
echoServer.setListener(new SocketIOAdapter() {
@Override
public void onConnect(Session session) {
System.out.println("Connected: " + session);
}
@Override
public void onMessage(Session session, ByteBuf message) {
System.out.println("Received: " + message.toString(CharsetUtil.UTF_8));
message.release();
}
@Override
public void onDisconnect(Session session) {
System.out.println("Disconnected: " + session);
}
});
echoServer.start();
}
}
的pom.xml
<project>
<groupId>test</groupId>
<artifactId>test</artifactId>
<version>1.0.0</version>
<modelVersion>4.0.0</modelVersion>
<dependencies>
<dependency>
<groupId>io.scalecube</groupId>
<artifactId>socketio</artifactId>
<version>2.3.4</version>
</dependency>
<dependency>
<groupId>antlr</groupId>
<artifactId>antlr</artifactId>
<version>2.7.7</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-buffer</artifactId>
<version>4.1.6.Final</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-common</artifactId>
<version>4.1.6.Final</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-handler</artifactId>
<version>4.1.6.Final</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-codec</artifactId>
<version>4.1.6.Final</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-codec-http</artifactId>
<version>4.1.6.Final</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-transport</artifactId>
<version>4.1.6.Final</version>
</dependency>
<dependency>
<groupId>io.netty</groupId>
<artifactId>netty-transport-native-epoll</artifactId>
<version>4.1.6.Final</version>
<classifier>linux-x86_64</classifier>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.5</version>
</dependency>
</dependencies>
</project>
记录和错误消息
相关错误出现在最后几行。
0 [main] INFO io.scalecube.socketio.SocketIOServer - Socket.IO server starting
35 [main] DEBUG io.netty.util.internal.logging.InternalLoggerFactory - Using SLF4J as the default logging framework
81 [main] DEBUG io.netty.util.ResourceLeakDetector - -Dio.netty.leakDetection.level: simple
81 [main] DEBUG io.netty.util.ResourceLeakDetector - -Dio.netty.leakDetection.maxRecords: 4
133 [main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.Buffer.address: available
135 [main] DEBUG io.netty.util.internal.PlatformDependent0 - sun.misc.Unsafe.theUnsafe: available
137 [main] DEBUG io.netty.util.internal.PlatformDependent0 - sun.misc.Unsafe.copyMemory: available
137 [main] DEBUG io.netty.util.internal.PlatformDependent0 - direct buffer constructor: available
139 [main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.Bits.unaligned: available, true
139 [main] DEBUG io.netty.util.internal.PlatformDependent0 - java.nio.DirectByteBuffer.<init>(long, int): available
141 [main] DEBUG io.netty.util.internal.Cleaner0 - java.nio.ByteBuffer.cleaner(): available
142 [main] DEBUG io.netty.util.internal.PlatformDependent - Java version: 8
143 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.noUnsafe: false
143 [main] DEBUG io.netty.util.internal.PlatformDependent - sun.misc.Unsafe: available
143 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.noJavassist: false
144 [main] DEBUG io.netty.util.internal.PlatformDependent - Javassist: unavailable
144 [main] DEBUG io.netty.util.internal.PlatformDependent - You don't have Javassist in your class path or you don't have enough permission to load dynamically generated classes. Please check the configuration for better performance.
144 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.tmpdir: /var/folders/gf/nk5vq4s13js9l91p8414w4x80000gr/T (java.io.tmpdir)
145 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.bitMode: 64 (sun.arch.data.model)
145 [main] DEBUG io.netty.util.internal.PlatformDependent - -Dio.netty.noPreferDirect: false
145 [main] DEBUG io.netty.util.internal.PlatformDependent - io.netty.maxDirectMemory: 1908932608 bytes
146 [main] DEBUG io.netty.util.ResourceLeakDetectorFactory - Loaded default ResourceLeakDetector: io.netty.util.ResourceLeakDetector@1b9e1916
220 [main] DEBUG io.netty.util.internal.PlatformDependent - org.jctools-core.MpscChunkedArrayQueue: available
252 [main] WARN io.scalecube.socketio.DefaultServerBootstrapFactory - Env doesn't support epoll transport
272 [main] DEBUG io.netty.channel.MultithreadEventLoopGroup - -Dio.netty.eventLoopThreads: 8
427 [main] DEBUG io.netty.channel.nio.NioEventLoop - -Dio.netty.noKeySetOptimization: false
428 [main] DEBUG io.netty.channel.nio.NioEventLoop - -Dio.netty.selectorAutoRebuildThreshold: 512
488 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.numHeapArenas: 8
488 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.numDirectArenas: 8
488 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.pageSize: 8192
488 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.maxOrder: 11
488 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.chunkSize: 16777216
488 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.tinyCacheSize: 512
488 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.smallCacheSize: 256
488 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.normalCacheSize: 64
488 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.maxCachedBufferCapacity: 32768
488 [main] DEBUG io.netty.buffer.PooledByteBufAllocator - -Dio.netty.allocator.cacheTrimInterval: 8192
530 [main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.allocator.type: pooled
531 [main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.threadLocalDirectBufferSize: 65536
531 [main] DEBUG io.netty.buffer.ByteBufUtil - -Dio.netty.maxThreadLocalCharBufferSize: 16384
541 [main] DEBUG io.netty.buffer.AbstractByteBuf - -Dio.netty.buffer.bytebuf.checkAccessible: true
542 [main] DEBUG io.netty.util.ResourceLeakDetectorFactory - Loaded default ResourceLeakDetector: io.netty.util.ResourceLeakDetector@880ec60
638 [main] DEBUG io.netty.channel.DefaultChannelId - -Dio.netty.processId: 23090 (auto-detected)
642 [main] DEBUG io.netty.util.NetUtil - -Djava.net.preferIPv4Stack: false
643 [main] DEBUG io.netty.util.NetUtil - -Djava.net.preferIPv6Addresses: false
644 [main] DEBUG io.netty.util.NetUtil - Loopback interface: lo0 (lo0, 0:0:0:0:0:0:0:1)
644 [main] DEBUG io.netty.util.NetUtil - /proc/sys/net/core/somaxconn: 128 (non-existent)
683 [main] DEBUG io.netty.channel.DefaultChannelId - -Dio.netty.machineId: 9c:f3:87:ff:fe:d6:8b:b6 (auto-detected)
683 [main] DEBUG io.netty.util.internal.ThreadLocalRandom - -Dio.netty.initialSeedUniquifier: 0xe4fdf6d1b06bd83e
790 [main] INFO io.scalecube.socketio.SocketIOServer - Socket.IO server started: ServerConfiguration{port=5000, ssl=false, heartbeatTimeout=60, heartbeatInterval=25, closeTimeout=60, transports='websocket,flashsocket,xhr-polling,jsonp-polling', alwaysSecureWebSocketLocation=false, remoteAddressHeader=null, eventExecutorEnabled=true, eventExecutorThreadNumber=8, maxWebSocketFrameSize=65536, epollEnabled=true, httpCompressionEnabled=false, websocketCompressionEnabled=false}
24863 [socketio-io-3-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.maxCapacityPerThread: 32768
24864 [socketio-io-3-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.maxSharedCapacityFactor: 2
24864 [socketio-io-3-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.linkCapacity: 16
24864 [socketio-io-3-1] DEBUG io.netty.util.Recycler - -Dio.netty.recycler.ratio: 8
24877 [defaultEventExecutorGroup-4-1] DEBUG io.scalecube.socketio.pipeline.PacketDispatcherHandler - Channel active: [id: 0x3268fa6e, L:/0:0:0:0:0:0:0:1:5000 - R:/0:0:0:0:0:0:0:1:65515]
24901 [socketio-io-3-1] WARN io.scalecube.socketio.pipeline.HandshakeHandler - Received HTTP bad request: GET /socket.io/ from channel: [id: 0x3268fa6e, L:/0:0:0:0:0:0:0:1:5000 - R:/0:0:0:0:0:0:0:1:65515]
24916 [defaultEventExecutorGroup-4-1] DEBUG io.scalecube.socketio.pipeline.PacketDispatcherHandler - Channel inactive: [id: 0x3268fa6e, L:/0:0:0:0:0:0:0:1:5000 ! R:/0:0:0:0:0:0:0:1:65515]
26411 [defaultEventExecutorGroup-4-2] DEBUG io.scalecube.socketio.pipeline.PacketDispatcherHandler - Channel active: [id: 0x8e67ba8d, L:/0:0:0:0:0:0:0:1:5000 - R:/0:0:0:0:0:0:0:1:65524]
26412 [socketio-io-3-2] WARN io.scalecube.socketio.pipeline.HandshakeHandler - Received HTTP bad request: GET /socket.io/ from channel: [id: 0x8e67ba8d, L:/0:0:0:0:0:0:0:1:5000 - R:/0:0:0:0:0:0:0:1:65524]
26415 [defaultEventExecutorGroup-4-2] DEBUG io.scalecube.socketio.pipeline.PacketDispatcherHandler - Channel inactive: [id: 0x8e67ba8d, L:/0:0:0:0:0:0:0:1:5000 ! R:/0:0:0:0:0:0:0:1:65524]
28951 [defaultEventExecutorGroup-4-3] DEBUG io.scalecube.socketio.pipeline.PacketDispatcherHandler - Channel active: [id: 0x874367ca, L:/0:0:0:0:0:0:0:1:5000 - R:/0:0:0:0:0:0:0:1:65533]
28953 [socketio-io-3-3] WARN io.scalecube.socketio.pipeline.HandshakeHandler - Received HTTP bad request: GET /socket.io/ from channel: [id: 0x874367ca, L:/0:0:0:0:0:0:0:1:5000 - R:/0:0:0:0:0:0:0:1:65533]
28955 [defaultEventExecutorGroup-4-3] DEBUG io.scalecube.socketio.pipeline.PacketDispatcherHandler - Channel inactive: [id: 0x874367ca, L:/0:0:0:0:0:0:0:1:5000 ! R:/0:0:0:0:0:0:0:1:65533]
Socket.io： 2.0.1 Java： 1.8.0_91
答案 0 :(得分：0)
我使用netty-socketio library解决了这个问题。上面提到的库似乎不能正常工作。
<dependency>
<groupId>com.corundumstudio.socketio</groupId>
<artifactId>netty-socketio</artifactId>
<version>1.7.12</version>
</dependency>