我正在使用 Java8 并且有一个可以在我的localhost上完美运行的聊天服务器，但是当我将它部署到 OpenShift 服务器时，我收到以下错误：
java.net.SocketException：权限被拒绝
2016-09-05 10:36:11,300 INFO [stdout] (Thread-125) Starting Chat server on localhost:8000 ... 2016-09-05 10:36:13,194 ERROR [stderr] (Thread-125) Exception in thread "Thread-125" java.net.SocketException: Permission denied 2016-09-05 10:36:13,194 ERROR [stderr] (Thread-125) at sun.nio.ch.Net.bind0(Native Method) 2016-09-05 10:36:13,195 ERROR [stderr] (Thread-125) at sun.nio.ch.Net.bind(Net.java:433) 2016-09-05 10:36:13,195 ERROR [stderr] (Thread-125) at sun.nio.ch.Net.bind(Net.java:425) 2016-09-05 10:36:13,195 ERROR [stderr] (Thread-125) at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) 2016-09-05 10:36:13,195 ERROR [stderr] (Thread-125) at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) 2016-09-05 10:36:13,196 ERROR [stderr] (Thread-125) at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:125) 2016-09-05 10:36:13,196 ERROR [stderr] (Thread-125) at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:476) 2016-09-05 10:36:13,196 ERROR [stderr] (Thread-125) at io.netty.channel.DefaultChannelPipeline$HeadHandler.bind(DefaultChannelPipeline.java:1000) 2016-09-05 10:36:13,196 ERROR [stderr] (Thread-125) at io.netty.channel.DefaultChannelHandlerContext.invokeBind(DefaultChannelHandlerContext.java:463) 2016-09-05 10:36:13,197 ERROR [stderr] (Thread-125) at io.netty.channel.DefaultChannelHandlerContext.bind(DefaultChannelHandlerContext.java:448) 2016-09-05 10:36:13,197 ERROR [stderr] (Thread-125) at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:842) 2016-09-05 10:36:13,197 ERROR [stderr] (Thread-125) at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:195) 2016-09-05 10:36:13,197 ERROR [stderr] (Thread-125) at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:338) 2016-09-05 10:36:13,198 ERROR [stderr] (Thread-125) at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:370) 2016-09-05 10:36:13,198 ERROR [stderr] (Thread-125) at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:353) 2016-09-05 10:36:13,198 ERROR [stderr] (Thread-125) at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:116) 2016-09-05 10:36:13,198 ERROR [stderr] (Thread-125) at java.lang.Thread.run(Thread.java:745)
我在这里查看了 OpenShift web sockets guide ，其中说应该使用端口 8000。但我仍然得到错误。
在 Openshift 上，我在WildFly Application Server 10卡式盒上运行我的聊天服务器。
任何建议表示赞赏。
这是我的代码：
WebAppInitializer.java
try {
new Thread() {
public void run() {
com.jobs.spring.chat.Server chatServer = new com.jobs.spring.chat.Server();
chatServer.startServer();
}
}.start();
} catch (Exception e) {
e.printStackTrace();
}
服务器.java
import java.net.Socket;
import com.corundumstudio.socketio.AckRequest;
import com.corundumstudio.socketio.Configuration;
import com.corundumstudio.socketio.SocketIOClient;
import com.corundumstudio.socketio.SocketIOServer;
import com.corundumstudio.socketio.listener.ConnectListener;
import com.corundumstudio.socketio.listener.DataListener;
import com.corundumstudio.socketio.listener.DisconnectListener;
import com.fasterxml.jackson.databind.ObjectMapper;
/**
* https://blog.openshift.com/paas-websockets/
* @author Richard
*
*/
public class Server {
//private static final String SERVER = "localhost";
private static final String SERVER = "jbosswildfly-easyjobs.rhcloud.com";
private static final Integer PORT = 8000;
public static void main(String[] args) {
startServer();
}
public static void startServer() {
Configuration config = new Configuration();
config.setHostname(SERVER);
config.setPort(PORT);
final SocketIOServer server = new SocketIOServer(config);
server.addConnectListener(new ConnectListener() {
@Override
public void onConnect(SocketIOClient client) {
System.out.println("onConnected");
client.sendEvent("chat_message:message", new Message("Welcome to the chat!"));
}
});
server.addDisconnectListener(new DisconnectListener() {
@Override
public void onDisconnect(SocketIOClient client) {
System.out.println("onDisconnected");
}
});
server.addEventListener("chat_message:send", String.class, new DataListener<String>() {
@Override
public void onData(SocketIOClient client, String data, AckRequest ackSender) throws Exception {
Message message = null;
try {
message = new ObjectMapper().readValue(data.toString(), Message.class);
} catch (Exception e) {
e.printStackTrace();
}
message.setDate(System.currentTimeMillis());
server.getBroadcastOperations().sendEvent("chat_message:message", message);
}
});
System.out.println("Starting Chat server on " + SERVER + ":" + PORT+" ...");
server.start();
System.out.println("Chat server started");
System.out.println("Chat server Environment Info: " + System.getenv());
try {
Socket socket = new Socket(SERVER, PORT);
printSocketInformation(socket);
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Prints debug output (to stdout) for the given Java Socket.
*/
public static void printSocketInformation(Socket socket) {
try {
System.out.format("Port: %s\n", socket.getPort());
System.out.format("Canonical Host Name: %s\n", socket.getInetAddress().getCanonicalHostName());
System.out.format("Host Address: %s\n\n", socket.getInetAddress().getHostAddress());
System.out.format("Local Address: %s\n", socket.getLocalAddress());
System.out.format("Local Port: %s\n", socket.getLocalPort());
System.out.format("Local Socket Address: %s\n\n", socket.getLocalSocketAddress());
System.out.format("Receive Buffer Size: %s\n", socket.getReceiveBufferSize());
System.out.format("Send Buffer Size: %s\n\n", socket.getSendBufferSize());
System.out.format("Keep-Alive: %s\n", socket.getKeepAlive());
System.out.format("SO Timeout: %s\n", socket.getSoTimeout());
} catch (Exception e) {
e.printStackTrace();
}
}
}
在这个链接中，OpenShift 讨论了端口绑定和代理。我真的不明白这一切。看起来我应该使用端口 8000（我就是），但我不清楚我应该使用什么主机名。我正在使用我的应用程序 URL 名称 (jbosswildfly-easyjobs.rhcloud.com)。那是对的吗？
如果我将地址更改为，http://jbosswildfly-easyjobs.rhcloud.com（即前缀http://）我收到以下错误：
java.net.SocketException：未解析的地址
