Question

我正在尝试运行spring web socket的演示，但无法完全测试它。我使用的是java 7和tomcat 7.0.50。我在服务器启动时没有出现任何错误，但是当我打开网页时，js与它建立了连接，我找不到404页面。我不确定我是否缺少任何配置以使其运行，我怎么能从js端连接它。

我有以下xml文件：

<beans ....>
    <context:annotation-config />

    <websocket:message-broker
        application-destination-prefix="/app">
        <websocket:stomp-endpoint path="/hello">
            <websocket:sockjs />
        </websocket:stomp-endpoint>
        <websocket:simple-broker prefix="/topic" />
    </websocket:message-broker>
</beans>

我的控制器类是：

@Controller
public class SwsService {
    @MessageMapping("/hello")
    @SendTo("/topic/greetings")
    public Greeting greeting(HelloMessage message) throws Exception {
         return new Greeting("Hello, " + message.getName() + "!");
   }

    public String getGreeting() {
        return "Hello, you are in!";
    }
}

我称之为的js是：

var sock = new SockJS("/hello");
sock.onopen = function () {
    console.log("open");
};
sock.onclose = function () {
    console.log("closed");
};
sock.onmessage = function (message) {
    console.log("msg", message);
};

运行tomcat时的控制台输出：

Feb 19, 2014 3:28:47 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre7\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:/Program Files/Java/jre6/bin/client;C:/Program Files/Java/jre6/bin;C:/Program Files/Java/jre6/lib/i386;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Intel\OpenCL SDK\2.0\bin\x86;C:\Program Files\TortoiseGit\bin;C:\Python24;C:\Program Files\TortoiseSVN\bin;C:\Program Files\nodejs\;C:\Program Files\Git\cmd;C:\Users\harsh\AppData\Roaming\npm;E:\IDE\eclipse_indigo;;.
Feb 19, 2014 3:28:47 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:SWS' did not find a matching property.
Feb 19, 2014 3:28:48 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Feb 19, 2014 3:28:48 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Feb 19, 2014 3:28:48 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1412 ms
Feb 19, 2014 3:28:48 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Feb 19, 2014 3:28:48 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.50
Feb 19, 2014 3:28:51 PM org.apache.catalina.core.ApplicationContext log
INFO: No Spring WebApplicationInitializer types detected on classpath
Feb 19, 2014 3:28:51 PM org.apache.catalina.core.ApplicationContext log
INFO: Initializing Spring root WebApplicationContext
Feb 19, 2014 3:28:51 PM org.springframework.web.context.ContextLoader initWebApplicationContext
INFO: Root WebApplicationContext: initialization started
Feb 19, 2014 3:28:51 PM org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing Root WebApplicationContext: startup date [Wed Feb 19 15:28:51 IST 2014]; root of context hierarchy
Feb 19, 2014 3:28:52 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from ServletContext resource [/WEB-INF/classes/conf/SwsContext.xml]
Feb 19, 2014 3:28:53 PM org.springframework.scheduling.concurrent.ExecutorConfigurationSupport initialize
INFO: Initializing ExecutorService  'clientInboundChannelExecutor'
Feb 19, 2014 3:28:53 PM org.springframework.scheduling.concurrent.ExecutorConfigurationSupport initialize
INFO: Initializing ExecutorService  'clientOutboundChannelExecutor'
Feb 19, 2014 3:28:53 PM org.springframework.scheduling.concurrent.ExecutorConfigurationSupport initialize
INFO: Initializing ExecutorService  'messageBrokerSockJsScheduler'
Feb 19, 2014 3:28:53 PM org.springframework.web.servlet.handler.AbstractUrlHandlerMapping registerHandler
INFO: Mapped URL path [/hello/**] onto handler of type [class org.springframework.web.socket.sockjs.support.SockJsHttpRequestHandler]
Feb 19, 2014 3:28:53 PM org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup start
INFO: Starting beans in phase 2147483647
Feb 19, 2014 3:28:53 PM org.springframework.web.context.ContextLoader initWebApplicationContext
INFO: Root WebApplicationContext: initialization completed in 2173 ms
Feb 19, 2014 3:28:53 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Feb 19, 2014 3:28:53 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Feb 19, 2014 3:28:53 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 5842 ms

浏览器控制台输出：

GET http://localhost:8080/hello/info 404 (Not Found) sockjs-0.3.min.js:27
closed

我如何成功测试它？

更新

我也试过从这里运行投资组合示例：https://github.com/rstoyanchev/spring-websocket-portfolio，如@jhadesdev所示

但它也无济于事。当我运行mvn tomcat7:run时，我看到以下输出和浏览器上的打开URL告诉404。

[INFO] Scanning for projects...
[INFO]
[INFO] Using the builder org.apache.maven.lifecycle.internal.builder.singlethrea
ded.SingleThreadedBuilder with a thread count of 1
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building spring-websocket-portfolio 1.0.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) @ spring-websocket-portfol
io >>>
[INFO]
[INFO] --- maven-resources-plugin:2.5:resources (default-resources) @ spring-web
socket-portfolio ---
[debug] execute contextualize
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory E:\libraries\spring-websocket-portfol
io\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ spring-websoc
ket-portfolio ---
[INFO] No sources to compile
[INFO]
[INFO] <<< tomcat7-maven-plugin:2.2:run (default-cli) @ spring-websocket-portfol
io <<<
[INFO]
[INFO] --- tomcat7-maven-plugin:2.2:run (default-cli) @ spring-websocket-portfol
io ---
[INFO] Running war on http://localhost:8080/spring-websocket-portfolio
[INFO] Using existing Tomcat server configuration at E:\libraries\spring-websock
et-portfolio\target\tomcat
[INFO] create webapp with contextPath: /spring-websocket-portfolio
Feb 27, 2014 10:20:46 AM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Feb 27, 2014 10:20:46 AM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Tomcat
Feb 27, 2014 10:20:46 AM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.47
Feb 27, 2014 10:20:49 AM org.apache.catalina.core.ApplicationContext log
INFO: No Spring WebApplicationInitializer types detected on classpath
Feb 27, 2014 10:20:49 AM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]

它停留在那里并且没有继续。

Answer 1

我遇到了同样的问题。这个帖子给了我足够的线索来解决这个问题。非常感谢。

解决方案： 如果您在web.xml中配置了Spring MVC Dispatcher Servlet并映射到url-pattern，如下所示

<servlet-mapping>
    <servlet-name>dispatcher</servlet-name>
    <url-pattern>/webui/*</url-pattern>
</servlet-mapping>

然后你必须创建SockJS实例，如下所示

var socket = new SockJS('/contextPath/webui/hello');

注意：将 contextPath 替换为您的应用程序上下文路径。

Answer 2

尝试在webapp中添加assets文件夹，其中所有stomp和sockjs.js文件都可用。请查看running application的此示例，该示例可以使用mvn clean install jetty:run运行。

问题似乎是sockjs不在服务器上或某些路径错误。根据链接上的示例，stomp端点可以是configured like this：

@EnableWebSocketMessageBroker
public class WebSocketConfig extends AbstractWebSocketMessageBrokerConfigurer {
    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {
        registry.addEndpoint("/portfolio").withSockJS();
    }

}

然后在javascript中可以像这样调用终点：

 var socket = new SockJS('/spring-websocket-portfolio/portfolio')
 var stompClient = Stomp.over(socket);

其中/spring-websocket-portfolio是应用程序的根部署路径。

Answer 3

This Chrome扩展程序可以帮助您测试Websockets。

此外，您还可以查看我的simple-chat项目，该项目使用Spring Boot和Websockets。

Answer 4

您的应用程序看起来很好。

您应该将JavaScript请求添加到应用程序的根上下文中，如jhadesdev mentioned。

您的应用程序是否注册了其他过滤器或自定义消息转换器？也许其他一些配置元素在这里干扰。

最新的投资组合示例肯定会有效，这里有一些问题：

您能否告诉我们有关您的客户端设置（浏览器，版本）的更多信息？
您的浏览器是否支持websocket（测试there）？
您是否也可以尝试隐身模式（可能是第三方浏览器扩展程序有问题？）
您是否可以检查您的浏览器是否未使用HTTP代理进行localhost请求？
您可以检查此HTTP 404是否在Tomcat访问日志中吗？（看看你是否在那些或catalina.out中有一些有趣的东西？）

Answer 5

我以那种方式解决了这个问题：创建SockJS时，添加localhost：8080 / 像这样

getAll()

Answer 6

对我来说，解决方案是通过SockJS类启用WebSocketConfig：

@Override
public void registerStompEndpoints(StompEndpointRegistry registry) {
    registry.addEndpoint("/search")
            .setAllowedOrigins("*")
            .setHandshakeHandler(new DefaultHandshakeHandler())
            .withSockJS();
}

无法运行spring web socket演示

6 个答案: