springMVC启动报错“org.apache.catalina.LifecycleException: A child container failed during start”

问题原因：导入依赖没有设置<scope>如下

<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>

解决方案：导入依赖设置<scope>如下

<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>