dubbo+maven+web工程启动报错java.lang.NoSuchMethodError: org.springframework.core.GenericTypeResolver.resol

报错异常堆栈：
java.lang.NoSuchMethodError: org.springframework.core.GenericTypeResolver.resolveTypeArguments(Ljava/lang/Class;Ljava/lang/Class;)[Ljava/lang/Class;
at org.springframework.core.convert.support.GenericConversionService.getRequiredTypeInfo(GenericConversionService.java:260)
at org.springframework.core.convert.support.GenericConversionService.addConverter(GenericConversionService.java:83)
at org.springframework.core.convert.support.DefaultConversionService.addScalarConverters(DefaultConversionService.java:63)
at org.springframework.core.convert.support.DefaultConversionService.addDefaultConverters(DefaultConversionService.java:54)
at org.springframework.core.convert.support.DefaultConversionService.<init>(DefaultConversionService.java:43)
at org.springframework.core.env.AbstractPropertyResolver.<init>(AbstractPropertyResolver.java:44)
at org.springframework.core.env.PropertySourcesPropertyResolver.<init>(PropertySourcesPropertyResolver.java:42)
at org.springframework.core.env.AbstractEnvironment.<init>(AbstractEnvironment.java:98)
at org.springframework.core.env.StandardEnvironment.<init>(StandardEnvironment.java:54)
at org.springframework.web.context.support.StandardServletEnvironment.<init>(StandardServletEnvironment.java:44)
at org.springframework.web.servlet.HttpServletBean.createEnvironment(HttpServletBean.java:213)
at org.springframework.web.servlet.HttpServletBean.getEnvironment(HttpServletBean.java:203)
at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:126)
at javax.servlet.GenericServlet.init(GenericServlet.java:160)
at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1266)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1185)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1080)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5027)
at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5314)
at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:618)
at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1100)
at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1618)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
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:745)

八月 20, 2017 12:35:58 上午 org.apache.catalina.core.StandardContext loadOnStartup

原因是maven的dependency中配置了dubbo，
<dependency>
   <groupId>com.alibaba</groupId>
   <artifactId>dubbo</artifactId>
   <version>2.5.3</version>
</dependency>
保存后会自动引入spring-xxx-2.6的包，然后就跟你项目中的其它spring包冲突了。解决方案：在<dependency>标签中加入exclusions标签排除spring的包
<dependency>
   <groupId>com.alibaba</groupId>
   <artifactId>dubbo</artifactId>
   <exclusions>
<exclusion>
           <groupId>org.springframework</groupId>
  <artifactId>spring</artifactId>
</exclusion>
   </exclusions>
   <version>2.5.3</version>
</dependency>