cometd 步骤

1， depenency

<dependency>

<groupId>org.cometd.java</groupId>

<artifactId>bayeux-api</artifactId>

<version>2.5.0-beta2</version>

</dependency>

<dependency>

<groupId>org.cometd.javascript</groupId>

<artifactId>cometd-javascript-jquery</artifactId>

<version>2.5.0-beta2</version>

<type>war</type>

</dependency>

<dependency>

<groupId>org.cometd.java</groupId>

<artifactId>cometd-java-server</artifactId>

<version>2.5.0-beta2</version>

</dependency>

<dependency>

<groupId>org.cometd.java</groupId>

<artifactId>cometd-websocket-jetty</artifactId>

<version>2.5.0-beta2</version>

<!-- exclusions> <exclusion> <groupId>org.cometd.java</groupId> <artifactId>cometd-java-client</artifactId> 

</exclusion> </exclusions -->

</dependency>

<dependency>

<groupId>org.cometd.java</groupId>

<artifactId>cometd-java-annotations</artifactId>

<version>2.5.0-beta2</version>

</dependency>

 <dependency>

<groupId>org.eclipse.jetty</groupId>

<artifactId>jetty-servlets</artifactId>

<version>7.6.0.RC5</version>

<!-- exclusions> <exclusion> <groupId>org.eclipse.jetty</groupId> <artifactId>jetty-client</artifactId> 

</exclusion> </exclusions -->

</dependency>

2, web.xml

<servlet>

<servlet-name>cometd</servlet-name>

<servlet-class>org.cometd.server.CometdServlet</servlet-class>

<init-param>

<param-name>transports</param-name>

<param-value>org.cometd.websocket.server.WebSocketTransport</param-value>

</init-param>

<load-on-startup>1</load-on-startup>

</servlet>

<servlet-mapping>

<servlet-name>cometd</servlet-name>

<url-pattern>/cometd/*</url-pattern>

</servlet-mapping>

 

<servlet>

<servlet-name>initializer</servlet-name>

<servlet-class>com.quguilai.pushserver.CometdBayeuxInitializer</servlet-class>

<load-on-startup>2</load-on-startup>

</servlet>

<filter>

<filter-name>continuation</filter-name>

<filter-class>org.eclipse.jetty.continuation.ContinuationFilter</filter-class>

</filter>

<filter-mapping>

<filter-name>continuation</filter-name>

<url-pattern>/cometd/*</url-pattern>

</filter-mapping>

 

<filter>

<filter-name>cross-origin</filter-name>

<filter-class>org.eclipse.jetty.servlets.CrossOriginFilter</filter-class>

</filter>

<filter-mapping>

<filter-name>cross-origin</filter-name>

<url-pattern>/cometd/*</url-pattern>

</filter-mapping>

 

3.js file

jquery.js ,  jquery.cookie.js,  json2.js

 

4.