java - 无法运行spring web socket demo

Question

我正在尝试运行 spring web socket 的演示，但无法完全测试它。我正在使用 java 7 和 tomcat 7.0.50。服务器启动时我没有收到任何错误，但是当我使用 js 连接到它打开网页时，我找不到 404 页面。我不确定我是否在配置中遗漏了使其运行的任何内容，以及如何从 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 Controller 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!";
    }
}

我调用这个的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 

如何才能成功测试？

---

更新

我还尝试从此处运行投资组合示例:https://github.com/rstoyanchev/spring-websocket-portfolio正如@jhadesdev 建议的那样

但这也无济于事。当我运行 mvn tomcat7:run 时，我看到以下输出并在浏览器上打开 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"]

它卡在那里并且不继续。

Answer 1

我也遇到了同样的问题。这个线程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 并映射到如下所示的 url 模式

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

然后你必须创建如下所示的 SockJS 实例

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。