java.lang.NoSuchMethodError: org.springframework.core.GenericTypeResolver.resolveTypeArguments(Ljava-优快云博客

本文链接：https://blog.youkuaiyun.com/gengjianchun/article/details/78503567

本文介绍了一个SpringMVC+Maven+Dubbo项目启动时出现的问题及解决办法。主要原因是Dubbo依赖自动引入的Spring版本与项目现有版本冲突导致异常。通过在pom.xml文件中排除不需要的Spring依赖解决了该问题。

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Springmvc+maven+dubbo项目，启动消费者端时异常

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:41)
   at org.springframework.core.env.PropertySourcesPropertyResolver.<init>(PropertySourcesPropertyResolver.java:41)
   at org.springframework.core.env.AbstractEnvironment.<init>(AbstractEnvironment.java:112)
   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:158)
   at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1284)
   at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1197)
   at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1087)
   at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5210)
   at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5493)
   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.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)

原因：

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的包，然后就跟项目中的其它spring包冲突了

解决方案：

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>