spring-boot集成dubbo

spring-boot中内置spring 4，对dubbo的集成是很友好的。

 

这里只做消费端的介绍，如果即是消费者，也是服务提供者，只需要将两个配置文件都配置好即可，然后在@importResource中用数据组的形式，引入即可。

 

具体文章可参考文章 http://blog.csdn.net/hong0220/article/details/51072872。

 

在集成过程中需要以下几个问题需要特殊关注下：

 

1，@EnableAutoConfiguration使用后，会查询相关dataSource的信息，如果不需要的话，需要将期排除掉。@EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
2，如果本地已经在tomcat存在，记得在application.properties中将server.port修改掉，避免冲突启动失败。

 

dataSource的默认查找异常。

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration': Invocation of init method failed; nested exception is java.lang.NoSuchFieldError: EMPTY_NAMES_ARRAY
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:136)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:408)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1558)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:539)
	at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476)
	at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:303)
	at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
	at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:299)
	at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194)
	at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:762)
	at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:757)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:480)
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:120)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:648)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:311)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:909)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:898)
	at dubot.Applications.main(Applications.java:16)
Caused by: java.lang.NoSuchFieldError: EMPTY_NAMES_ARRAY
	at org.springframework.web.context.support.ServletContextPropertySource.getPropertyNames(ServletContextPropertySource.java:41)
	at org.springframework.core.env.EnumerablePropertySource.containsProperty(EnumerablePropertySource.java:64)
	at org.springframework.core.env.PropertySourcesPropertyResolver.containsProperty(PropertySourcesPropertyResolver.java:50)
	at org.springframework.core.env.AbstractEnvironment.containsProperty(AbstractEnvironment.java:506)
	at org.springframework.boot.bind.RelaxedPropertyResolver.getProperty(RelaxedPropertyResolver.java:84)
	at org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration.initialize(DataSourceAutoConfiguration.java:90)
	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.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleElement.invoke(InitDestroyAnnotationBeanPostProcessor.java:349)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor$LifecycleMetadata.invokeInitMethods(InitDestroyAnnotationBeanPostProcessor.java:300)
	at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessBeforeInitialization(InitDestroyAnnotationBeanPostProcessor.java:133)
	... 17 common frames omitted

 

Exception in thread "main" 2016-05-18 13:18:29.178  INFO 1568 --- [       Thread-1] ationConfigEmbeddedWebApplicationContext : Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@6f8a68da: startup date [Wed May 18 13:18:29 CST 2016]; root of context hierarchy
java.lang.NoSuchMethodError: org.springframework.expression.spel.SpelParserConfiguration.<init>(Lorg/springframework/expression/spel/SpelCompilerMode;Ljava/lang/ClassLoader;)V
	at org.springframework.context.expression.StandardBeanExpressionResolver.<init>(StandardBeanExpressionResolver.java:98)
	at org.springframework.context.support.AbstractApplicationContext.prepareBeanFactory(AbstractApplicationContext.java:553)
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:455)
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:120)
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:648)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:311)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:909)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:898)
	at dubot.Applications.main(Applications.java:17)
2016-05-18 13:18:29.186  WARN 1568 --- [       Thread-1] ationConfigEmbeddedWebApplicationContext : Exception thrown from ApplicationListener handling ContextClosedEvent

java.lang.IllegalStateException: ApplicationEventMulticaster not initialized - call 'refresh' before multicasting events via the context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@6f8a68da: startup date [Wed May 18 13:18:29 CST 2016]; root of context hierarchy
	at org.springframework.context.support.AbstractApplicationContext.getApplicationEventMulticaster(AbstractApplicationContext.java:344)
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:331)
	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:869)
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.doClose(EmbeddedWebApplicationContext.java:152)
	at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:804)

2016-05-18 13:18:29.187  WARN 1568 --- [       Thread-1] ationConfigEmbeddedWebApplicationContext : Exception thrown from LifecycleProcessor on context close

java.lang.IllegalStateException: LifecycleProcessor not initialized - call 'refresh' before invoking lifecycle methods via the context: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@6f8a68da: startup date [Wed May 18 13:18:29 CST 2016]; root of context hierarchy
	at org.springframework.context.support.AbstractApplicationContext.getLifecycleProcessor(AbstractApplicationContext.java:357)
	at org.springframework.context.support.AbstractApplicationContext.doClose(AbstractApplicationContext.java:877)
	at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.doClose(EmbeddedWebApplicationContext.java:152)
	at org.springframework.context.support.AbstractApplicationContext$1.run(AbstractApplicationContext.java:804)

异常原因：缺少spring-expression jar包，在pom.xml中引入即可。

<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-expression</artifactId>
			<version>4.1.4.RELEASE</version>
</dependency>