使用弹簧启用WebSockets
问题描述:
我正在尝试使用Wildfly 10服务器来配置弹簧的网络套接字。按照this教程中,我有以下文件:使用弹簧启用WebSockets
这是网络套接字类:
package com.myapp.spring.web.controller;
import javax.websocket.OnClose;
import javax.websocket.OnError;
import javax.websocket.OnMessage;
import javax.websocket.OnOpen;
import javax.websocket.server.ServerEndpoint;
import org.springframework.web.socket.server.standard.SpringConfigurator;
@ServerEndpoint(value="/serverendpoint", configurator = SpringConfigurator.class)
/**
* This class creates web sockets, opens, and maintains connection with the client
*/
public class serverendpoint {
@OnOpen
public void handleOpen() {
System.out.println("JAVA: Client is now connected...");
}
@OnMessage
public String handleMessage (String message) {
if (message.equals("ping"))
return "pong";
else if (message.equals("close")) {
handleClose();
return null;
}
System.out.println("JAVA: Received from client: "+ message);
if (message.contains("//")) {
MyClass mc = new MyClass(message);
return mc.someMethod();
} else {
System.out.println("Message From Web Socket Not Understood");
return null;
}
}
@OnClose
public void handleClose() {
System.out.println("JAVA: Client is now disconnected...");
}
@OnError
public void handleError (Throwable t) {
t.printStackTrace();
}
}
这是web套接字配置文件:
package com.myapp.spring.security.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.socket.server.standard.ServerEndpointExporter;
import com.myapp.spring.web.controller.serverendpoint;
@Configuration
public class EndpointConfig {
@Bean
public serverendpoint serverendpoint() {
return new serverendpoint();
}
@Bean
public ServerEndpointExporter endpointExporter() {
return new ServerEndpointExporter();
}
}
这是我pom.xml
:
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.3.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.2.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
<version>1.4.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
<version>1.4.0.RELEASE</version>
</dependency>
根据教程,这是我所要做的。但我收到以下错误:
Failed to start service jboss.undertow.deployment.default-server.default-host./ROOT: org.jboss.msc.service.StartException in service jboss.undertow.deployment.default-server.default-host./ROOT: java.lang.RuntimeException: java.lang.ClassCastException: org.apache.tomcat.websocket.server.WsServerContainer cannot be cast to io.undertow.websockets.jsr.ServerWebSocketContainer
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:85)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at org.jboss.threads.JBossThread.run(JBossThread.java:320)
Caused by: java.lang.RuntimeException: java.lang.ClassCastException: org.apache.tomcat.websocket.server.WsServerContainer cannot be cast to io.undertow.websockets.jsr.ServerWebSocketContainer
at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:231)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService.startContext(UndertowDeploymentService.java:100)
at org.wildfly.extension.undertow.deployment.UndertowDeploymentService$1.run(UndertowDeploymentService.java:82)
... 6 more
Caused by: java.lang.ClassCastException: org.apache.tomcat.websocket.server.WsServerContainer cannot be cast to io.undertow.websockets.jsr.ServerWebSocketContainer
at io.undertow.websockets.jsr.Bootstrap$WebSocketListener.contextInitialized(Bootstrap.java:104)
at io.undertow.servlet.core.ApplicationListeners.contextInitialized(ApplicationListeners.java:187)
at io.undertow.servlet.core.DeploymentManagerImpl.deploy(DeploymentManagerImpl.java:198)
... 8 more
这个问题的解决方法是什么?另外,是否还有其他需要添加的配置文件,以便我的网络套接字在端点/serverendpoint
上正确映射,就像我在serverendpoint()
类中所做的那样(我问这是因为我有点不确定是否只需要一个看起来不太合适,我环顾四周,others已包含其他文件,例如,@EnableWebSocket
,但教程说我只需要这两个文件。)?
非常感谢!
答
请通过https://github.com/spring-projects/spring-boot/issues/6166,看看是否可以解决您的问题。 SO在Spring Boot Websockets in Wildfly有类似的问题报告。希望这可以帮助。
我会研究一下,非常感谢。但是除了配置文件外,我还需要其他文件才能在我的web套接字上使用spring吗? – user5139637
您正在关注的教程在https://github.com/rstoyanchev/spring-websocket-test上提供了一个示例项目。请看看这可以帮助你。 – abaghel
现在,我得到一个新的错误:导致:javax.websocket.DeploymentException:UT003023:具有相同逻辑映射的多个端点PathTemplate {template = false,base ='/ serverendpoint',parts = []}和PathTemplate {template =假,基地='/ serverendpoint',部分= []} – user5139637