maven引入dubbo包后启动报错

启动后报错内容为：

Caused by: org.springframework.beans.factory.BeanDefinitionStoreException:
Unexpected exception parsing XML document from URL [config/spring-context.xml];
nested exception is java.lang.IllegalStateException:
Context namespace element 'component-scan' and its parser class [org.springframework.context.annotation.ComponentScanBeanDefinitionParser] are only available on JDK 1.5 and higher

报错原因：因为dubbo jar包中包含低版本的spring，所以在引入dubbo是需要将spring包排除掉：

　　<dependency>
   　　<groupId>com.alibaba</groupId>
      <artifactId>dubbo</artifactId>
      <version>2.5.3</version>
      <exclusions>
       　　<exclusion>
          　　<groupId>org.springframework</groupId>
             <artifactId>spring</artifactId>
          </exclusion>
      </exclusions>
   </dependency>