java - ssm整合 表現層訪問時報錯。。

問題描述

嚴重: Servlet.service() for servlet [tour-manager] in context with path [] threw exception [Handler processing failed; nested exception is java.lang.NoSuchMethodError: org.springframework.core.MethodParameter.nestedIfOptional()Lorg/springframework/core/MethodParameter;] with root causejava.lang.NoSuchMethodError: org.springframework.core.MethodParameter.nestedIfOptional()Lorg/springframework/core/MethodParameter;

at org.springframework.web.method.annotation.RequestParamMethodArgumentResolver.supportsParameter(RequestParamMethodArgumentResolver.java:137)at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.getArgumentResolver(HandlerMethodArgumentResolverComposite.java:135)at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.supportsParameter(HandlerMethodArgumentResolverComposite.java:106)at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:156)at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:128)

問題解答

謝邀, 你看下你引用的spring-core是什么版本的? MethodParameter#nestedIfOptional()好像是4.3之后才有的, 看下是不是引用了多個不同版本的spring-core, 導致沖突之類的