添加依赖
<dependency>
    <groupId>org.cometd.java</groupId>
    <artifactId>cometd-java-server-websocket-jetty</artifactId>
    <version>9.0.1</version>
</dependency>
implementation 'org.cometd.java:cometd-java-server-websocket-jetty:9.0.1'
org.cometd.java:cometd-java-server-websocket-jetty:9.0.1
<dependency org="org.cometd.java" name="cometd-java-server-websocket-jetty" rev="9.0.1" />
libraryDependencies += "org.cometd.java" % "cometd-java-server-websocket-jetty" % "9.0.1"
@Grab(group='org.cometd.java', module='cometd-java-server-websocket-jetty', version='9.0.1')
[org.cometd.java/cometd-java-server-websocket-jetty "9.0.1"]
'org.cometd.java:cometd-java-server-websocket-jetty:jar:9.0.1'