无法启动Camel 1.5.0

时间：2008-12-04 20:20:19

标签： java spring java-ee jms apache-camel

我正在尝试运行Camel示例“camel-example-spring-jms”（也在http://activemq.apache.org/camel/tutorial-jmsremoting.html）。 但是，当我尝试使用“org.apache.camel.spring.Main”类启动Camel时，我收到错误说

“配置问题：无法找到XML架构命名空间的Spring NamespaceHandler [http://activemq.apache.org/schema/core]”

[注意：当我使用Maven命令“mvn exec：java -PCamelServer”时，我能够正常运行该示例）

有人可以帮我理解可能导致这种情况的原因。潜在的解决方案提示也不会伤害：）

++++++错误堆栈+++++ 

Dec 4, 2008 12:45:01 PM org.apache.camel.util.MainSupport doStart
INFO: Apache Camel 1.5.0 starting
Dec 4, 2008 12:45:01 PM org.springframework.context.support.AbstractApplicationContext prepareRefresh
INFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@1ac3c08: display name [org.springframework.context.support.ClassPathXmlApplicationContext@1ac3c08]; startup date [Thu Dec 04 12:45:01 EST 2008]; root of context hierarchy
Dec 4, 2008 12:45:01 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from file [C:\dev\camel-example-spring-jms\bin\META-INF\spring\camel-server-aop.xml]
Dec 4, 2008 12:45:02 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitions
INFO: Loading XML bean definitions from file [C:\dev\camel-example-spring-jms\bin\META-INF\spring\camel-server.xml]
Dec 4, 2008 12:45:03 PM org.apache.camel.util.MainSupport run
SEVERE: Failed: org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Failed to import bean definitions from relative location [camel-server.xml]
Offending resource: file [C:\dev\camel-example-spring-jms\bin\META-INF\spring\camel-server-aop.xml]; nested exception is org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://activemq.apache.org/schema/core]
Offending resource: file [C:\dev\camel-example-spring-jms\bin\META-INF\spring\camel-server.xml]

org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Failed to import bean definitions from relative location [camel-server.xml]
Offending resource: file [C:\dev\camel-example-spring-jms\bin\META-INF\spring\camel-server-aop.xml]; nested exception is org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate Spring NamespaceHandler for XML schema namespace [http://activemq.apache.org/schema/core]
Offending resource: file [C:\dev\camel-example-spring-jms\bin\META-INF\spring\camel-server.xml]

        at org.springframework.beans.factory.parsing.FailFastProblemReporter.error(FailFastProblemReporter.java:68)
        at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:85)
        at org.springframework.beans.factory.parsing.ReaderContext.error(ReaderContext.java:76)
        at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.importBeanDefinitionResource(DefaultBeanDefinitionDocumentReader.java:201)
        at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseDefaultElement(DefaultBeanDefinitionDocumentReader.java:147)
        at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:132)
        at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:92)
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:507)
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:398)
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:342)
        at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:310)
        at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:143)
        at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:178)
        at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:149)
        at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:212)
        at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:113)
        at org.springframework.context.support.AbstractXmlApplicationContext.loadBeanDefinitions(AbstractXmlApplicationContext.java:80)
        at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:123)
        at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:423)
        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:353)
        at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
        at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
        at org.apache.camel.spring.Main.createDefaultApplicationContext(Main.java:189)
        at org.apache.camel.spring.Main.doStart(Main.java:152)
        at org.apache.camel.impl.ServiceSupport.start(ServiceSupport.java:47)
        at org.apache.camel.util.MainSupport.run(MainSupport.java:121)
        at org.apache.camel.util.MainSupport.run(MainSupport.java:310)
        at org.apache.camel.spring.Main.main(Main.java:72)

++++++

5 个答案:

答案 0 :(得分：1)

所以它在maven下工作正常 - 但如果你运行它怎么样呢？在您的IDE或其他什么？

如果您使用的是eclipse / intellij，则可以使用maven为maven项目创建一个IDE项目。

mvn eclipse:eclipse

或

mvn idea:idea

如果您正在编写一些shell脚本或从命令行运行它，那么很可能您缺少一些罐子;你需要spring + jaxb + commons-logging + camel-core，camel-spring和camel-jms。

获取maven类型

中依赖项的准确列表 
mvn dependency:tree

答案 1 :(得分：0)

当camel-jms库.jar不在您的类路径中时，会导致此特殊异常。正如James所提到的，在运行时确保此库正确地位于类路径中。

答案 2 :(得分：0)

使用骆驼时我遇到了类似的问题（虽然它是骆驼1.3）。在我的情况下，错误是：

org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: Unable to locate NamespaceHandler for namespace [http://activemq.apache.org/camel/schema/spring]

我可以通过更改我的jdk版本来修复它。我使用jdk 1.5，我升级到1.6，这解决了我的问题。希望这会有所帮助。

莫妮卡

答案 3 :(得分：0)

您使用的是哪个版本的JDK1.5？您是否在Eclipse与Command line中使用不同的JDK？

可能是JAXB没有正确版本的问题。必须是JAXB 2.1或更新版本。

答案 4 :(得分：0)

我在Eclipse和外部工具（Maven）中遇到了同样的问题。正如詹姆斯和皮特指出的那样，在类路径中添加camel-jms.jar解决了我的问题。看起来像camel-core和camel-jms是基本的强制依赖：

<dependency>
  <groupId>org.apache.camel</groupId>
  <artifactId>camel-core</artifactId>
  <version>1.6.0</version>
  <scope>compile</scope>
</dependency>

<dependency>
  <groupId>org.apache.camel</groupId>
  <artifactId>camel-jms</artifactId>
  <version>1.6.0</version>
  <scope>runtime</scope>
</dependency>
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