java - 从 servlet 添加项目到 HornetQ 队列

Question

我有一个项目，它构建为 war 文件并部署到 JBOSS 服务器。 JBOSS 服务器的standalone-full-ha.xml 文件配置为创建多个队列。 war 文件使用 Spring 注册一个类来监听这些队列，并处理它收到的消息。通常将消息放入队列的应用程序是由其他供应商编写的；我不知道该代码是什么样的。但是，我需要能够将消息添加到我的开发环境中的队列中以进行测试。

我编写了一个小 servlet 并将其添加到 war 中来尝试此测试。但是，当我调用 servlet 时遇到异常:

13:54:12,211 ERROR [stderr] (http-/0.0.0.0:8080-1) javax.naming.NamingException: Failed to create remoting connection [Root exception is java.lang.RuntimeExcept
ion: Operation failed with status WAITING]
13:54:12,211 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.jboss.naming.remote.client.ClientUtil.namingException(ClientUtil.java:36)
13:54:12,211 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.jboss.naming.remote.client.InitialContextFactory.getInitialContext(InitialContextFactory.java:121
)
13:54:12,211 ERROR [stderr] (http-/0.0.0.0:8080-1)      at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:684)
13:54:12,226 ERROR [stderr] (http-/0.0.0.0:8080-1)      at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:307)
13:54:12,226 ERROR [stderr] (http-/0.0.0.0:8080-1)      at javax.naming.InitialContext.init(InitialContext.java:242)
13:54:12,226 ERROR [stderr] (http-/0.0.0.0:8080-1)      at javax.naming.InitialContext.<init>(InitialContext.java:216)
13:54:12,226 ERROR [stderr] (http-/0.0.0.0:8080-1)      at com.me.me.servlets.SingleFileImportServlet.doGet(SingleFileImportServlet.java:75)
13:54:12,226 ERROR [stderr] (http-/0.0.0.0:8080-1)      at javax.servlet.http.HttpServlet.service(HttpServlet.java:734)
13:54:12,226 ERROR [stderr] (http-/0.0.0.0:8080-1)      at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
13:54:12,226 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:329)
13:54:12,226 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:248)
13:54:12,226 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:275)
13:54:12,226 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:161)
13:54:12,242 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.jboss.modcluster.container.jbossweb.JBossWebContext$RequestListenerValve.event(JBossWebContext.ja
va:67)
13:54:12,242 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.jboss.modcluster.container.jbossweb.JBossWebContext$RequestListenerValve.invoke(JBossWebContext.j
ava:48)
13:54:12,242 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.jboss.as.web.security.SecurityContextAssociationValve.invoke(SecurityContextAssociationValve.java
:169)
13:54:12,242 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:155)
13:54:12,242 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
13:54:12,242 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
13:54:12,257 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:372)
13:54:12,257 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:877)
13:54:12,257 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:679)
13:54:12,257 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:931)
13:54:12,257 ERROR [stderr] (http-/0.0.0.0:8080-1)      at java.lang.Thread.run(Thread.java:745)
13:54:12,257 ERROR [stderr] (http-/0.0.0.0:8080-1) Caused by: java.lang.RuntimeException: Operation failed with status WAITING
13:54:12,257 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.jboss.naming.remote.protocol.IoFutureHelper.get(IoFutureHelper.java:89)
13:54:12,257 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.jboss.naming.remote.client.NamingStoreCache.getRemoteNamingStore(NamingStoreCache.java:56)
13:54:12,257 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.jboss.naming.remote.client.InitialContextFactory.getOrCreateCachedNamingStore(InitialContextFacto
ry.java:166)
13:54:12,257 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.jboss.naming.remote.client.InitialContextFactory.getOrCreateNamingStore(InitialContextFactory.jav
a:139)
13:54:12,273 ERROR [stderr] (http-/0.0.0.0:8080-1)      at org.jboss.naming.remote.client.InitialContextFactory.getInitialContext(InitialContextFactory.java:104
)
13:54:12,273 ERROR [stderr] (http-/0.0.0.0:8080-1)      ... 22 more

这是第 75 行之前的代码(在堆栈跟踪中引用)。它是从以前的测试中借来的，所以我有理由相信它应该有效。

Properties properties = new Properties();
properties.put(Context.INITIAL_CONTEXT_FACTORY, "org.jboss.naming.remote.client.InitialContextFactory");

properties.put(Context.PROVIDER_URL, "remote://127.0.0.1:4447");
properties.put(Context.SECURITY_PRINCIPAL, "user");
properties.put(Context.SECURITY_CREDENTIALS, "pwd");

ConnectionFactory connectionFactory = null;
Destination destination = null;

try {
    Context context = new InitialContext(properties);

有几个问题:1) 你能看到我需要在这个 servlet 中做哪些不同的事情来连接到队列吗？2)是否有关于我有“remote://”的有效其他值的文档？3)大概我的 4447 端口需要与 JBOSS 配置中的某些内容相匹配 - 有相关文档吗？

谢谢

Answer 1

仅当从服务器外部执行 JNDI 查找时，才需要传递给 InitialContext 的工厂、URL 和安全原则。

如果包含测试 servlet 的 war 部署在配置了队列的同一服务器内，那么您应该能够实例化一个新的 InitialContext()，而无需任何属性来执行查找本地 JDNI 实例。

try {
    Context context = new InitialContext();