javaweb同一个项目打包两次放在同一个tomcat下

web.xml中配置：

    <context-param>
        <param-name>webAppRootKey</param-name>
        <param-value>app1.root</param-value>
    </context-param>

    <context-param>
        <param-name>webAppRootKey</param-name>
        <param-value>app2.root</param-value>
    </context-param>

修改webAppRootKey即可