springMVC配置了requestMapping 訪問報404

報錯信息:The origin server did not find a current representation for the target resource or is not willing to disclose that one exists. tomcat能夠正常部署. 但是日誌欄有報錯信息. 可以看出是缺少jar包. pom裏面是配置完整的. 添加lib文件夾,導入pom引入

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