查看tomcat下边logs文件夹中的localhost.date.log文件

    1. severe:Web app root system property already set to different value:'webapp.root' = xxx
    2. choose 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>