RequestMappingHandlerMapping创建失败,一直弄不对

Question

运行java web工程时提示错误如下，我实在是找不出原因了，请求帮助。控制台报错如下：
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter': Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: com/fasterxml/jackson/databind/exc/InvalidDefinitionException

Answer 1

原因之一是jackson版本和spring版本兼容问题：
升级jackjson 的jar包或者spring的jar包。