面对自定义连接器中的问题：mule esb

时间：2015-02-16 13:38:25

标签： mule mule-studio connector mule-component

我使用Anypoint连接器项目在mule esb中创建自定义连接器。 我使用REST类型的API。以下是我的代码

@Processor
    @ReconnectOn(exceptions = { Exception.class })
    @RestCall(uri="http://myapi/{content}", method=HttpMethod.GET)
    public abstract void myProcessor(@RestUriParam("content") String content) throws IOException;  


    public ConnectorConnectionStrategy getConnectionStrategy() {
        return connectionStrategy;
    }

    public void setConnectionStrategy(ConnectorConnectionStrategy connectionStrategy) {
        this.connectionStrategy = connectionStrategy;
    }

我使用了自定义连接器，如下所示.. 

<connect-custom:config-type name="customConnector" doc:name="customConnector" />

 <flow name="testinghelloFlow">
        <http:listener config-ref="HTTP_Listener_Configuration" path="/" doc:name="HTTP"/>
        <connect-custom:my-processor config-ref="customConnector" content="APP" doc:name="customConnector"/>

        <logger message="#[payload]" level="INFO" doc:name="Logger"/>
    </flow>

我收到了以下错误.. 

ERROR 2015-02-16 19:06:13,418 [main] org.mule.module.launcher.application.DefaultMuleApplication: null
java.lang.InstantiationException
    at sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:48) ~[?:1.7.0_75]
    at java.lang.reflect.Constructor.newInstance(Constructor.java:526) ~[?:1.7.0_75]
    at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:148) ~[spring-beans-3.2.10.RELEASE.jar:3.2.10.RELEASE]
    at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:87) ~[spring-beans-3.2.10.RELEASE.jar:3.2.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateBean(AbstractAutowireCapableBeanFactory.java:1031) ~[spring-beans-3.2.10.RELEASE.jar:3.2.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:984) ~[spring-beans-3.2.10.RELEASE.jar:3.2.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:487) ~[spring-beans-3.2.10.RELEASE.jar:3.2.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) ~[spring-beans-3.2.10.RELEASE.jar:3.2.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:293) ~[spring-beans-3.2.10.RELEASE.jar:3.2.10.RELEASE]
    at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) ~[spring-beans-3.2.10.RELEASE.jar:3.2.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:290) ~[spring-beans-3.2.10.RELEASE.jar:3.2.10.RELEASE]
    at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:191) ~[spring-beans-3.2.10.RELEASE.jar:3.2.10.RELEASE]
    at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:633) ~[spring-beans-3.2.10.RELEASE.jar:3.2.10.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:932) ~[spring-context-3.2.10.RELEASE.jar:3.2.10.RELEASE]
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) ~[spring-context-3.2.10.RELEASE.jar:3.2.10.RELEASE]
    at org.mule.config.spring.SpringRegistry.doInitialise(SpringRegistry.java:86) ~[mule-module-spring-config-3.6.0.jar:3.6.0]
    at org.mule.registry.AbstractRegistry.initialise(AbstractRegistry.java:105) ~[mule-core-3.6.0.jar:3.6.0]
    at org.mule.config.spring.SpringXmlConfigurationBuilder.createSpringRegistry(SpringXmlConfigurationBuilder.java:135) ~[mule-module-spring-config-3.6.0.jar:3.6.0]
    at org.mule.config.spring.SpringXmlConfigurationBuilder.doConfigure(SpringXmlConfigurationBuilder.java:90) ~[mule-module-spring-config-3.6.0.jar:3.6.0]
    at org.mule.config.builders.AbstractConfigurationBuilder.configure(AbstractConfigurationBuilder.java:43) ~[mule-core-3.6.0.jar:3.6.0]
    at org.mule.config.builders.AbstractResourceConfigurationBuilder.configure(AbstractResourceConfigurationBuilder.java:69) ~[mule-core-3.6.0.jar:3.6.0]
    at org.mule.config.builders.AutoConfigurationBuilder.autoConfigure(AutoConfigurationBuilder.java:101) ~[mule-core-3.6.0.jar:3.6.0]
    at org.mule.config.builders.AutoConfigurationBuilder.doConfigure(AutoConfigurationBuilder.java:52) ~[mule-core-3.6.0.jar:3.6.0]
    at org.mule.config.builders.AbstractConfigurationBuilder.configure(AbstractConfigurationBuilder.java:43) ~[mule-core-3.6.0.jar:3.6.0]
    at org.mule.config.builders.AbstractResourceConfigurationBuilder.configure(AbstractResourceConfigurationBuilder.java:69) ~[mule-core-3.6.0.jar:3.6.0]
    at org.mule.context.DefaultMuleContextFactory$1.configure(DefaultMuleContextFactory.java:84) ~[mule-core-3.6.0.jar:3.6.0]
    at org.mule.context.DefaultMuleContextFactory.doCreateMuleContext(DefaultMuleContextFactory.java:217) ~[mule-core-3.6.0.jar:3.6.0]
    at org.mule.context.DefaultMuleContextFactory.createMuleContext(DefaultMuleContextFactory.java:76) ~[mule-core-3.6.0.jar:3.6.0]
    at org.mule.module.launcher.application.DefaultMuleApplication.init(DefaultMuleApplication.java:187) ~[mule-module-launcher-3.6.0.jar:3.6.0]
    at org.mule.module.launcher.artifact.ArtifactWrapper$2.execute(ArtifactWrapper.java:62) ~[mule-module-launcher-3.6.0.jar:3.6.0]
    at org.mule.module.launcher.artifact.ArtifactWrapper.executeWithinArtifactClassLoader(ArtifactWrapper.java:129) ~[mule-module-launcher-3.6.0.jar:3.6.0]
    at org.mule.module.launcher.artifact.ArtifactWrapper.init(ArtifactWrapper.java:57) ~[mule-module-launcher-3.6.0.jar:3.6.0]
    at org.mule.module.launcher.DefaultArtifactDeployer.deploy(DefaultArtifactDeployer.java:25) ~[mule-module-launcher-3.6.0.jar:3.6.0]
    at org.mule.module.launcher.DefaultArchiveDeployer.guardedDeploy(DefaultArchiveDeployer.java:310) ~[mule-module-launcher-3.6.0.jar:3.6.0]
    at org.mule.module.launcher.DefaultArchiveDeployer.deployArtifact(DefaultArchiveDeployer.java:330) ~[mule-module-launcher-3.6.0.jar:3.6.0]
    at org.mule.module.launcher.DefaultArchiveDeployer.deployPackagedArtifact(DefaultArchiveDeployer.java:155) ~[mule-module-launcher-3.6.0.jar:3.6.0]
    at org.mule.module.launcher.DefaultArchiveDeployer.deployPackagedArtifact(DefaultArchiveDeployer.java:256) ~[mule-module-launcher-3.6.0.jar:3.6.0]
    at org.mule.module.launcher.DefaultArchiveDeployer.deployPackagedArtifact(DefaultArchiveDeployer.java:78) ~[mule-module-launcher-3.6.0.jar:3.6.0]
    at org.mule.module.launcher.DeploymentDirectoryWatcher.deployPackedApps(DeploymentDirectoryWatcher.java:275) ~[mule-module-launcher-3.6.0.jar:3.6.0]
    at org.mule.module.launcher.DeploymentDirectoryWatcher.start(DeploymentDirectoryWatcher.java:150) ~[mule-module-launcher-3.6.0.jar:3.6.0]
    at org.mule.module.launcher.MuleDeploymentService.start(MuleDeploymentService.java:100) ~[mule-module-launcher-3.6.0.jar:3.6.0]
    at org.mule.module.launcher.MuleContainer.start(MuleContainer.java:152) ~[mule-module-launcher-3.6.0.jar:3.6.0]
    at org.mule.tooling.server.application.ApplicationDeployer.main(ApplicationDeployer.java:15) ~[tooling-support-3.6.0.jar:?]
INFO  2015-02-16 19:06:13,624 [main] org.mule.module.launcher.application.DefaultMuleApplication: App 'testinghello' never started, nothing to dispose of
ERROR 2015-02-16 19:06:13,812 [main] org.mule.module.launcher.DefaultArchiveDeployer:

当我使用junittest测试我的课程时，出现以下错误.. 

org.mule.api.config.ConfigurationException: Error creating bean with name 'Connect__Configuration_type_strategy': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.mule.modules.customconnect.adapters.ConnectorConnectionStrategyBasicAdapter]: Is it an abstract class?; nested exception is java.lang.InstantiationException (org.mule.api.lifecycle.InitialisationException)
    at org.mule.config.builders.AbstractConfigurationBuilder.configure(AbstractConfigurationBuilder.java:49)
    at org.mule.config.builders.AbstractResourceConfigurationBuilder.configure(AbstractResourceConfigurationBuilder.java:69)
    at org.mule.context.DefaultMuleContextFactory$1.configure(DefaultMuleContextFactory.java:84)
    at org.mule.context.DefaultMuleContextFactory.doCreateMuleContext(DefaultMuleContextFactory.java:217)
    at org.mule.context.DefaultMuleContextFactory.createMuleContext(DefaultMuleContextFactory.java:76)
    at org.mule.tck.junit4.AbstractMuleContextTestCase.createMuleContext(AbstractMuleContextTestCase.java:236)
    at org.mule.tck.junit4.AbstractMuleContextTestCase.setUpMuleContext(AbstractMuleContextTestCase.java:145)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27)
    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:30)
    at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:47)
    at org.junit.internal.runners.statements.FailOnTimeout$StatementThread.run(FailOnTimeout.java:62)

我该如何解决这个错误？ 我在编译时遇到了这个错误..我只是尝试使用REST Api获取数据.. 我错过了哪一步??? 怎么可能？

由于

2 个答案:

答案 0 :(得分：1)

我认为这可能是最新的devkit版本的问题。您可以尝试使用以前的版本并检查这是否解决了您的问题？ HTH。

答案 1 :(得分：1)

正如@clare所提到的，这似乎是Anypoint Studio中3.6 DevKit的一个问题。如果在Anypoint Studio 3.6中生成类和测试，则会出现此问题。

如果删除连接器类中与Connection Strategy相关的所有方法和变量（包括@ConnectionStrategy注释和ConnectorConnectionStrategy类），则可以使连接器正常工作。然后，您必须将XML配置文件中的连接器配置类型从<connector:config-type>更新为<connector:config>，（其中“connector”是您的连接器名称）。这是以前的风格。

基本上，回到3.5.x做连接器的方式，你会没事的。我相信很快就会有更新。

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