4 回答@SkipValidation 有錯誤：SkipValidation cannot be resolved to a type，請問怎么解決？

1 回答505錯誤 嚴重: Exception occurred during processing request: org.apache.catalina.core.ApplicationContextFacade cannot be cast to org.apache.struts2.util.ServletContextAware

3 回答Configuration config = new Configuration().configure(); 一直報空指針異常

1 回答配置文檔提示------Attribute "methond" must be declared for element type "action".

1 回答No appenders could be found for logger (org.hibernate.cfg.Environment).