无法启动CoAP服务器

Question

当我运行HelloWorldServer.java的杯(例子)，我得到了这个错误。我该怎么解决这个问题？我在月食中运行..。

Mar 08, 2016 8:30:01 PM org.eclipse.californium.core.network.config.NetworkConfig createStandardWithFile
INFO: Loading standard properties from file Californium.properties
Mar 08, 2016 8:30:01 PM org.eclipse.californium.core.CoapServer start
INFO: Starting server
Mar 08, 2016 8:30:01 PM org.eclipse.californium.core.network.CoapEndpoint start
INFO: Starting endpoint at /127.0.0.1:5683
Mar 08, 2016 8:30:01 PM org.eclipse.californium.core.network.CoapEndpoint stop
INFO: Stopping endpoint at address /127.0.0.1:5683
Mar 08, 2016 8:30:01 PM org.eclipse.californium.core.CoapServer start
SEVERE: Address already in use: Cannot bind at /127.0.0.1:5683
Mar 08, 2016 8:30:01 PM org.eclipse.californium.core.network.CoapEndpoint start
INFO: Starting endpoint at /0:0:0:0:0:0:0:1:5683
Mar 08, 2016 8:30:01 PM org.eclipse.californium.core.network.CoapEndpoint stop
INFO: Stopping endpoint at address /0:0:0:0:0:0:0:1:5683
Mar 08, 2016 8:30:01 PM org.eclipse.californium.core.CoapServer start
SEVERE: Address already in use: Cannot bind at /0:0:0:0:0:0:0:1:5683
Mar 08, 2016 8:30:01 PM org.eclipse.californium.core.network.CoapEndpoint start
INFO: Starting endpoint at /192.168.1.102:5683
Mar 08, 2016 8:30:01 PM org.eclipse.californium.core.network.CoapEndpoint stop
INFO: Stopping endpoint at address /192.168.1.102:5683
Mar 08, 2016 8:30:01 PM org.eclipse.californium.core.CoapServer start
SEVERE: Address already in use: Cannot bind at /192.168.1.102:5683
Exception in thread "main" java.lang.IllegalStateException: None of the server endpoints could be started
at org.eclipse.californium.core.CoapServer.start(CoapServer.java:202)
at org.eclipse.californium.examples.HelloWorldServer.main(HelloWorldServer.java:46)

Answer 1

您可能还在运行以前的启动版本的示例，因此它已经在使用UDP端口5683。尝试使用Console视图或Debug视图在Debug透视图中杀死它。

Answer 2

日志本身说明了发生了什么错误。

Mar 08, 2016 8:30:01 PM org.eclipse.californium.core.CoapServer start
SEVERE: Address already in use: Cannot bind at /127.0.0.1:5683

为了杀死绑定到5683的进程

sudo kill -9 $(lsof -t -i:5683)