在Tomcat8服务器上部署时，WebSocket应用程序无法正常运行 [英] WebSocket application doesn't work properly when deployed on Tomcat8 server
本文介绍了在Tomcat8服务器上部署时，WebSocket应用程序无法正常运行的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
问题
我正在尝试在源代码中进行最少更改的情况下运行此示例: https://spring.io/guides/gs/messaging-stomp-websocket/
I'm trying to run this example with minimal changes in the source code: https://spring.io/guides/gs/messaging-stomp-websocket/
我已经设法使用Eclipse和Maven以及终端窗口再次使用maven来运行它.我还设法将其打包为.war文件，并使用 java -jar myfile.war 在终端中运行它.连接并在同一窗口中返回问候语.当我将.war文件部署到在RaspberryPi上运行的tomcat8服务器时，就会出现问题.在这种情况下，将显示index.html，但是连接"按钮什么也没有做，这使我相信这是与javascript有关的问题.服务器工作正常，顺便说一句，我在上面部署了其他东西.
I have managed to run it using Eclipse and Maven, as well as a terminal window, again, with maven. I've also managed to package it into a .war file and run it in terminal using java -jar myfile.war It works as expected in those cases, i.e. localhost:8080 displays the simple interface and it connects and returns a greeting in the same window. The problem comes when I deploy the .war file to a tomcat8 server I have running on my RaspberryPi. In that case, the index.html displays, but the "Connect" button does nothing, which leads me to believe this is some sort of javascript related issue. The server works fine, btw, I have other stuff deployed on it.
我尝试过的事情
- 编辑.war存档，使index.html和.js文件不在WEB-INF目录中，以便外界可以访问它们.问题仍然存在.
- 将对index.html中的.js文件的脚本引用更改为
<script src="http://cdn.sockjs.org/sockjs-0.3.4.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/stomp.js/2.3.3/stomp.js"></script>，以便如果.war文件有任何问题，它们可以通过CDN交付.问题仍然存在.
so that they may be delivered over a CDN, in case there was any problem with the .war file. The problem persists.
- 为servlet添加了额外的功能，以使其在其他目录中显示一些数据，只是为了确保它可以正常工作，而.war文件不是问题.看起来不错，但是上述问题显然仍然存在.
代码
入口
@SpringBootApplication
public class Application extends SpringBootServletInitializer {
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
return application.sources(Application.class);
}
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
将返回的问候.
public class Greeting {
private String content;
public Greeting(String content) {
this.content = content;
}
public String getContent() {
return content;
}
}
控制器
@Controller
public class GreetingController {
@MessageMapping("/hello")
@SendTo("/topic/greetings")
public Greeting greeting(HelloMessage message) throws Exception {
Thread.sleep(3000); // simulated delay
return new Greeting("Hello, " + message.getName() + "!");
}
}
要发送的消息
public class HelloMessage {
private String name;
public String getName() {
return name;
}
}
WebSocket配置
WebSocket configuration
@Configuration
@EnableWebSocketMessageBroker
public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer {
@Override
public void configureMessageBroker(MessageBrokerRegistry config) {
config.enableSimpleBroker("/topic");
config.setApplicationDestinationPrefixes("/app");
}
public void registerStompEndpoints(StompEndpointRegistry registry) {
registry.addEndpoint("/hello").withSockJS();
}
}
index.html
index.html
<!DOCTYPE html>
<html>
<head>
<title>Hello WebSocket</title>
<script src="sockjs-0.3.4.js"></script>
<script src="stomp.js"></script>
<script>
var stompClient = null;
function setConnected(connected) {
document.getElementById('connect').disabled = connected;
document.getElementById('disconnect').disabled = !connected;
document.getElementById('conversationDiv').style.visibility = connected ? 'visible' : 'hidden';
document.getElementById('response').innerHTML = '';
}
function connect() {
var socket = new SockJS('/hello');
stompClient = Stomp.over(socket);
stompClient.connect({}, function(frame) {
setConnected(true);
console.log('Connected: ' + frame);
stompClient.subscribe('/topic/greetings', function(greeting){
showGreeting(JSON.parse(greeting.body).content);
});
});
}
function disconnect() {
if (stompClient != null) {
stompClient.disconnect();
}
setConnected(false);
console.log("Disconnected");
}
function sendName() {
var name = document.getElementById('name').value;
stompClient.send("/app/hello", {}, JSON.stringify({ 'name': name }));
}
function showGreeting(message) {
var response = document.getElementById('response');
var p = document.createElement('p');
p.style.wordWrap = 'break-word';
p.appendChild(document.createTextNode(message));
response.appendChild(p);
}
</script>
</head>
<body onload="disconnect()">
<noscript><h2 style="color: #ff0000">Seems your browser doesn't support Javascript! Websocket relies on Javascript being enabled. Please enable
Javascript and reload this page!</h2></noscript>
<div>
<div>
<button id="connect" onclick="connect();">Connect</button>
<button id="disconnect" disabled="disabled" onclick="disconnect();">Disconnect</button>
</div>
<div id="conversationDiv">
<label>What is your name?</label><input type="text" id="name" />
<button id="sendName" onclick="sendName();">Send</button>
<p id="response"></p>
</div>
</div>
</body>
</html>pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.springframework</groupId>
<artifactId>gs-messaging-stomp-websocket</artifactId>
<version>0.1.0</version>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.3.3.RELEASE</version>
</parent>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-websocket</artifactId>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-messaging</artifactId>
</dependency>
</dependencies>
<properties>
<java.version>1.8</java.version>
</properties>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
<packaging>war</packaging>
</project>
上次部署的日志
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.3.3.RELEASE)
2016-04-21 22:39:51.727 INFO 18022 --- [o-8080-exec-129] hello.Application : Starting Application on raspberrypi with PID 18022 (/var/lib/tomcat8/webapps/gs-messaging-stomp-websocket-0.1.0/WEB-INF/classes/hello/Application.class started by tomcat8 in /var/lib/tomcat8)
2016-04-21 22:39:51.800 INFO 18022 --- [o-8080-exec-129] hello.Application : No active profile set, falling back to default profiles: default
2016-04-21 22:39:52.752 INFO 18022 --- [o-8080-exec-129] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@167fc4: startup date [Thu Apr 21 22:39:52 EEST 2016]; root of context hierarchy
2016-04-21 22:40:09.630 INFO 18022 --- [o-8080-exec-129] o.s.b.f.s.DefaultListableBeanFactory : Overriding bean definition for bean 'beanNameViewResolver' with a different definition: replacing [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/ErrorMvcAutoConfiguration$WhitelabelErrorViewConfiguration.class]] with [Root bean: class [null]; scope=; abstract=false; lazyInit=false; autowireMode=3; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=org.springframework.boot.autoconfigure.web.WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter; factoryMethodName=beanNameViewResolver; initMethodName=null; destroyMethodName=(inferred); defined in class path resource [org/springframework/boot/autoconfigure/web/WebMvcAutoConfiguration$WebMvcAutoConfigurationAdapter.class]]
2016-04-21 22:40:16.208 INFO 18022 --- [o-8080-exec-129] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 23468 ms
2016-04-21 22:40:30.525 INFO 18022 --- [o-8080-exec-129] b.a.w.TomcatWebSocketContainerCustomizer : NonEmbeddedServletContainerFactory detected. Websockets support should be native so this normally is not a problem.
2016-04-21 22:40:40.343 INFO 18022 --- [o-8080-exec-129] o.s.b.c.e.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2016-04-21 22:40:40.360 INFO 18022 --- [o-8080-exec-129] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'errorPageFilter' to: [/*]
2016-04-21 22:40:40.363 INFO 18022 --- [o-8080-exec-129] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2016-04-21 22:40:40.366 INFO 18022 --- [o-8080-exec-129] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2016-04-21 22:40:40.369 INFO 18022 --- [o-8080-exec-129] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2016-04-21 22:40:40.372 INFO 18022 --- [o-8080-exec-129] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2016-04-21 22:40:41.904 INFO 18022 --- [o-8080-exec-129] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'clientInboundChannelExecutor'
2016-04-21 22:40:42.137 INFO 18022 --- [o-8080-exec-129] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'clientOutboundChannelExecutor'
2016-04-21 22:40:42.743 INFO 18022 --- [o-8080-exec-129] o.s.s.c.ThreadPoolTaskScheduler : Initializing ExecutorService 'messageBrokerTaskScheduler'
2016-04-21 22:40:44.228 INFO 18022 --- [o-8080-exec-129] o.s.w.s.s.s.WebSocketHandlerMapping : Mapped URL path [/hello/**] onto handler of type [class org.springframework.web.socket.sockjs.support.SockJsHttpRequestHandler]
2016-04-21 22:40:44.635 INFO 18022 --- [o-8080-exec-129] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'brokerChannelExecutor'
2016-04-21 22:40:49.712 INFO 18022 --- [o-8080-exec-129] .WebSocketAnnotationMethodMessageHandler : Mapped "{[/hello],messageType=[MESSAGE]}" onto public hello.Greeting hello.GreetingController.greeting(hello.HelloMessage) throws java.lang.Exception
2016-04-21 22:40:57.059 INFO 18022 --- [o-8080-exec-129] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@167fc4: startup date [Thu Apr 21 22:39:52 EEST 2016]; root of context hierarchy
2016-04-21 22:40:58.966 INFO 18022 --- [o-8080-exec-129] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2016-04-21 22:40:58.993 INFO 18022 --- [o-8080-exec-129] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2016-04-21 22:40:59.092 INFO 18022 --- [o-8080-exec-129] o.s.w.s.c.a.WebMvcConfigurerAdapter : Adding welcome page: ServletContext resource [/index.html]
2016-04-21 22:40:59.622 INFO 18022 --- [o-8080-exec-129] o.s.w.s.handler.SimpleUrlHandlerMapping : Root mapping to handler of type [class org.springframework.web.servlet.mvc.ParameterizableViewController]
2016-04-21 22:40:59.948 INFO 18022 --- [o-8080-exec-129] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-04-21 22:40:59.950 INFO 18022 --- [o-8080-exec-129] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-04-21 22:41:01.167 INFO 18022 --- [o-8080-exec-129] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2016-04-21 22:41:06.289 INFO 18022 --- [o-8080-exec-129] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2016-04-21 22:41:06.561 INFO 18022 --- [o-8080-exec-129] o.s.c.support.DefaultLifecycleProcessor : Starting beans in phase 2147483647
2016-04-21 22:41:06.570 INFO 18022 --- [o-8080-exec-129] o.s.m.s.b.SimpleBrokerMessageHandler : Starting...
2016-04-21 22:41:06.578 INFO 18022 --- [o-8080-exec-129] o.s.m.s.b.SimpleBrokerMessageHandler : BrokerAvailabilityEvent[available=true, SimpleBrokerMessageHandler [DefaultSubscriptionRegistry[cache[0 destination(s)], registry[0 sessions]]]]
2016-04-21 22:41:06.597 INFO 18022 --- [o-8080-exec-129] o.s.m.s.b.SimpleBrokerMessageHandler : Started.
2016-04-21 22:41:06.830 INFO 18022 --- [o-8080-exec-129] hello.Application : Started Application in 93.812 seconds (JVM running for 2602144.954)
Apr 21, 2016 10:41:07 PM org.apache.catalina.startup.HostConfig deployWAR
INFO: Deployment of web application archive /var/lib/tomcat8/webapps/gs-messaging-stomp-websocket-0.1.0.war has finished in 137,294 ms
2016-04-21 22:41:31.098 INFO 18022 --- [o-8080-exec-131] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization started
2016-04-21 22:41:31.455 INFO 18022 --- [o-8080-exec-131] o.s.web.servlet.DispatcherServlet : FrameworkServlet 'dispatcherServlet': initialization completed in 355 ms
2016-04-21 22:41:44.554 INFO 18022 --- [MessageBroker-1] o.s.w.s.c.WebSocketMessageBrokerStats : WebSocketSession[0 current WS(0)-HttpStream(0)-HttpPoll(0), 0 total, 0 closed abnormally (0 connect failure, 0 send limit, 0 transport error)], stompSubProtocol[processed CONNECT(0)-CONNECTED(0)-DISCONNECT(0)], stompBrokerRelay[null], inboundChannel[pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0], outboundChannelpool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0], sockJsScheduler[pool size = 1, active threads = 1, queued tasks = 0, completed tasks = 0]
2016-04-21 23:11:44.549 INFO 18022 --- [MessageBroker-1] o.s.w.s.c.WebSocketMessageBrokerStats : WebSocketSession[0 current WS(0)-HttpStream(0)-HttpPoll(0), 0 total, 0 closed abnormally (0 connect failure, 0 send limit, 0 transport error)], stompSubProtocol[processed CONNECT(0)-CONNECTED(0)-DISCONNECT(0)], stompBrokerRelay[null], inboundChannel[pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0], outboundChannelpool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0], sockJsScheduler[pool size = 1, active threads = 1, queued tasks = 0, completed tasks = 1]
2016-04-21 23:41:44.549 INFO 18022 --- [MessageBroker-1] o.s.w.s.c.WebSocketMessageBrokerStats : WebSocketSession[0 current WS(0)-HttpStream(0)-HttpPoll(0), 0 total, 0 closed abnormally (0 connect failure, 0 send limit, 0 transport error)], stompSubProtocol[processed CONNECT(0)-CONNECTED(0)-DISCONNECT(0)], stompBrokerRelay[null], inboundChannel[pool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0], outboundChannelpool size = 0, active threads = 0, queued tasks = 0, completed tasks = 0], sockJsScheduler[pool size = 1, active threads = 1, queued tasks = 0, completed tasks = 2]
链接到我的.war文件
Link to my .war file
http://s000.tinyupload.com/index.php?file_id=67742984079178858914
最终想法
同样，通过消除过程，.js库未正确导入，或者服务器的WebSocket支持出现问题.我真的很坚持这一点，任何帮助都将不胜感激.
Again, by process of elimination, either the .js libraries aren't importing properly, or there is something wrong with my server's WebSocket support. I'm really stuck on this one, any and all help would be appreciated.
推荐答案
我尝试了春季指南示例，它与Google chrome 54.0.2840.100(64位)完全兼容
I tried spring guides example it works perfectly fine with Google chrome Version 54.0.2840.100 (64-bit)
链接: https://github.com/spring-guides/gs-messaging-stomp-websocket/tree/master/complete
当我很快看到我发现您缺少依赖项时
when I saw quickly I found you missing below dependencies
<dependency>
<groupId>org.webjars</groupId>
<artifactId>webjars-locator</artifactId>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>sockjs-client</artifactId>
<version>1.0.2</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>stomp-websocket</artifactId>
<version>2.3.3</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>bootstrap</artifactId>
<version>3.3.7</version>
</dependency>
<dependency>
<groupId>org.webjars</groupId>
<artifactId>jquery</artifactId>
<version>3.1.0</version>
</dependency>
这篇关于在Tomcat8服务器上部署时，WebSocket应用程序无法正常运行的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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