上一節講到在tomcat裏運行時候會報錯。 錯誤如下：
十二月 10, 2014 3:46:17 下午 org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testMng' defined in class path resource [applicationContext_dubbo-consumer.xml]: Cannot resolve reference to bean 'testDubbo' while setting bean property 'testDubbo'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testDubbo': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalStateException: dp.dubbo.service.TestDubbo
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:329)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:107)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1360)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1118)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:294)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:225)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:291)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:607)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:925)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:472)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:388)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:293)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:111)
at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4973)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5467)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'testDubbo': FactoryBean threw exception on object creation; nested exception is java.lang.IllegalStateException: dp.dubbo.service.TestDubbo
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:149)
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:102)
at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1442)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:248)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:193)
at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:323)
... 25 more
Caused by: java.lang.IllegalStateException: dp.dubbo.service.TestDubbo
at com.alibaba.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:181)
at com.alibaba.dubbo.config.ReferenceConfig.get(ReferenceConfig.java:138)
at com.alibaba.dubbo.config.spring.ReferenceBean.getObject(ReferenceBean.java:65)
at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:142)
... 30 more
Caused by: java.lang.ClassNotFoundException: dp.dubbo.service.TestDubbo
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1718)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1569)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:266)
at com.alibaba.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:178)
... 33 more提示是 遠程服務的類無法找到
檢查 工程裏的maven依賴 dp爲一個文件夾；
再去tomcat的實際運行目錄的 web-inf 下看 dp.jar是不存在的。
這時候，我們需要將 服務提供者的服務接口打包成jar，再拷貝到該運行目錄下。
注意，把所有依賴都要打進來，本實例只依賴了 服務接口，沒有其它 bean，如果你使用了對象的話，也一併要打包進來。
最後，把打好的dp.jar拷貝到運行目錄的 lib 中。
再次運行。
不會報錯了
打開瀏覽器訪問 http://localhost:8080/dc/test.do
成功了。
當然你也可以 debug一步一步看執行情況。
最後分析：
由於我的服務提供者也做成了 web工程，因此在 pom文件裏做依賴的時候，也不能自動的將其打包到 服務消費者的運行lib裏。
好了，目前學習到這裏。
源碼下載地址 http://download.csdn.net/detail/fangxiaoji/8244249