查看tomcat下边logs文件夹中的localhost.date.log文件
severe:Web app root system property already set to different value:'webapp.root' = xxxchoose unique values for the WebAppRootKey context-param in your web.xml
在项目根节点的web.xml文件中添加以下配置,其中param-value保证唯一性
<context-param>
<param-name>webAppRootKey</param-name>
<param-value>webapp.root</param-value>
</context-param>
